From 93b063fedfcf7409a67df035170ea5670cad22e1 Mon Sep 17 00:00:00 2001 From: Josh Rahm Date: Tue, 24 Nov 2020 13:46:41 -0700 Subject: Moved action to top level. Removed old iterations of the project and moved the files from 02-usart to the root directory since that's the sole place where the action is and that subproject has outgrown its initial title. --- .gdbinit | 1 + .ycm_extra_conf.py | 21 ++ 00-hello/Makefile | 17 - 00-hello/README | 19 - 00-hello/linker_script.ld | 14 - 00-hello/main.c | 354 ------------------ 01-system-clock/Makefile.preamble | 21 -- 01-system-clock/README | 17 - 01-system-clock/genmake.pl | 70 ---- 01-system-clock/include/clock.h | 118 ------ 01-system-clock/include/common.h | 14 - 01-system-clock/include/delay.h | 12 - 01-system-clock/include/flash.h | 20 - 01-system-clock/include/gpio.h | 120 ------ 01-system-clock/include/isr_vector.h | 20 - 01-system-clock/include/rcc.h | 81 ----- 01-system-clock/include/spin.h | 15 - 01-system-clock/linker/linker_script.ld | 36 -- 01-system-clock/src/clock.c | 106 ------ 01-system-clock/src/delay.c | 9 - 01-system-clock/src/gpio.c | 37 -- 01-system-clock/src/isr_vector.c | 165 --------- 01-system-clock/src/main.c | 36 -- 01-system-clock/src/spin.c | 49 --- 01-system-clock/src/vector.c | 0 02-usart/.gdbinit | 1 - 02-usart/.ycm_extra_conf.py | 21 -- 02-usart/Makefile.preamble | 25 -- 02-usart/genmake.pl | 128 ------- 02-usart/include/arch/arm/arch.h | 43 --- 02-usart/include/arch/stm32l4xxx/peripherals/apb.h | 4 - .../include/arch/stm32l4xxx/peripherals/clock.h | 128 ------- 02-usart/include/arch/stm32l4xxx/peripherals/dma.h | 149 -------- .../include/arch/stm32l4xxx/peripherals/flash.h | 20 - .../include/arch/stm32l4xxx/peripherals/gpio.h | 66 ---- 02-usart/include/arch/stm32l4xxx/peripherals/irq.h | 89 ----- .../include/arch/stm32l4xxx/peripherals/isrs.inc | 112 ------ .../include/arch/stm32l4xxx/peripherals/nvic.h | 46 --- 02-usart/include/arch/stm32l4xxx/peripherals/rcc.h | 132 ------- 02-usart/include/arch/stm32l4xxx/peripherals/spi.h | 102 ------ .../include/arch/stm32l4xxx/peripherals/system.h | 76 ---- .../tables/stm32l432xx/gpio/afn_table.inc | 100 ----- .../tables/stm32l432xx/gpio/port_table.inc | 26 -- .../include/arch/stm32l4xxx/peripherals/usart.h | 204 ----------- 02-usart/include/arch/x86_64/arch.h | 37 -- 02-usart/include/kern/common.h | 50 --- 02-usart/include/kern/delay.h | 12 - 02-usart/include/kern/dma/dma_manager.h | 279 -------------- 02-usart/include/kern/gpio/gpio_manager.h | 187 ---------- 02-usart/include/kern/gpio/sysled.h | 11 - 02-usart/include/kern/init.h | 67 ---- 02-usart/include/kern/lib.h | 10 - 02-usart/include/kern/log.h | 12 - 02-usart/include/kern/mem.h | 32 -- 02-usart/include/kern/string.h | 6 - 02-usart/linker/linker_script.ld | 55 --- 02-usart/src/arch/stm32l4xxx/peripherals/clock.c | 117 ------ 02-usart/src/arch/stm32l4xxx/peripherals/irq.c | 96 ----- 02-usart/src/arch/stm32l4xxx/peripherals/usart.c | 152 -------- 02-usart/src/kern/delay.c | 9 - 02-usart/src/kern/dma/dma_manager.c | 311 ---------------- 02-usart/src/kern/gpio/gpio_manager.c | 402 --------------------- 02-usart/src/kern/gpio/sysled.c | 14 - 02-usart/src/kern/init.c | 82 ----- 02-usart/src/kern/lib.c | 56 --- 02-usart/src/kern/log.c | 55 --- 02-usart/src/kern/main.c | 29 -- 02-usart/src/kern/mem.c | 280 -------------- 02-usart/src/kern/stdlibrepl.c | 13 - 02-usart/src/kern/string.c | 9 - 02-usart/src/kern/vector.c | 0 02-usart/test_harness/Makefile | 9 - 02-usart/test_harness/fake_env.c | 63 ---- 02-usart/test_harness/fake_env.h | 20 - 02-usart/test_harness/test_harness.c | 181 ---------- 02-usart/test_harness/test_harness.h | 101 ------ 02-usart/tests/metatest.c | 22 -- 02-usart/tests/test_dma.c | 189 ---------- 02-usart/tests/test_gpio.c | 194 ---------- 02-usart/tests/test_irq.c | 43 --- 02-usart/tests/test_lib.c | 21 -- 02-usart/tests/test_memory.c | 378 ------------------- 02-usart/tests/test_spi.c | 11 - 02-usart/tests/test_usart.c | 22 -- 02.5-collatz/Makefile.preamble | 21 -- 02.5-collatz/genmake.pl | 70 ---- 02.5-collatz/include/apb.h | 4 - 02.5-collatz/include/clock.h | 126 ------- 02.5-collatz/include/common.h | 30 -- 02.5-collatz/include/delay.h | 12 - 02.5-collatz/include/flash.h | 20 - 02.5-collatz/include/gpio.h | 146 -------- 02.5-collatz/include/isr_vector.h | 20 - 02.5-collatz/include/rcc.h | 93 ----- 02.5-collatz/include/spin.h | 15 - 02.5-collatz/include/usart.h | 131 ------- 02.5-collatz/linker/linker_script.ld | 36 -- 02.5-collatz/src/clock.c | 106 ------ 02.5-collatz/src/delay.c | 9 - 02.5-collatz/src/gpio.c | 52 --- 02.5-collatz/src/isr_vector.c | 165 --------- 02.5-collatz/src/main.c | 93 ----- 02.5-collatz/src/spin.c | 49 --- 02.5-collatz/src/usart.c | 80 ---- 02.5-collatz/src/vector.c | 0 03-refactor/Makefile.preamble | 21 -- 03-refactor/genmake.pl | 70 ---- 03-refactor/include/apb.h | 4 - 03-refactor/include/clock.h | 112 ------ 03-refactor/include/common.h | 30 -- 03-refactor/include/delay.h | 12 - 03-refactor/include/flash.h | 20 - 03-refactor/include/gpio.h | 146 -------- 03-refactor/include/isr_vector.h | 20 - 03-refactor/include/printf.h | 15 - 03-refactor/include/rcc.h | 181 ---------- 03-refactor/include/spin.h | 15 - 03-refactor/include/usart.h | 219 ----------- 03-refactor/linker/linker_script.ld | 36 -- 03-refactor/src/clock.c | 131 ------- 03-refactor/src/delay.c | 9 - 03-refactor/src/gpio.c | 52 --- 03-refactor/src/isr_vector.c | 275 -------------- 03-refactor/src/main.c | 103 ------ 03-refactor/src/printf.c | 152 -------- 03-refactor/src/spin.c | 49 --- 03-refactor/src/usart.c | 131 ------- 03-refactor/src/vector.c | 0 Makefile.preamble | 25 ++ genmake.pl | 128 +++++++ include/arch/arm/arch.h | 43 +++ include/arch/stm32l4xxx/peripherals/apb.h | 4 + include/arch/stm32l4xxx/peripherals/clock.h | 128 +++++++ include/arch/stm32l4xxx/peripherals/dma.h | 149 ++++++++ include/arch/stm32l4xxx/peripherals/flash.h | 20 + include/arch/stm32l4xxx/peripherals/gpio.h | 66 ++++ include/arch/stm32l4xxx/peripherals/irq.h | 89 +++++ include/arch/stm32l4xxx/peripherals/isrs.inc | 112 ++++++ include/arch/stm32l4xxx/peripherals/nvic.h | 46 +++ include/arch/stm32l4xxx/peripherals/rcc.h | 132 +++++++ include/arch/stm32l4xxx/peripherals/spi.h | 102 ++++++ include/arch/stm32l4xxx/peripherals/system.h | 76 ++++ .../tables/stm32l432xx/gpio/afn_table.inc | 100 +++++ .../tables/stm32l432xx/gpio/port_table.inc | 26 ++ include/arch/stm32l4xxx/peripherals/usart.h | 204 +++++++++++ include/arch/x86_64/arch.h | 37 ++ include/kern/common.h | 50 +++ include/kern/delay.h | 12 + include/kern/dma/dma_manager.h | 279 ++++++++++++++ include/kern/gpio/gpio_manager.h | 187 ++++++++++ include/kern/gpio/sysled.h | 11 + include/kern/init.h | 67 ++++ include/kern/lib.h | 10 + include/kern/log.h | 12 + include/kern/mem.h | 32 ++ include/kern/string.h | 6 + linker/linker_script.ld | 55 +++ src/arch/stm32l4xxx/peripherals/clock.c | 117 ++++++ src/arch/stm32l4xxx/peripherals/irq.c | 96 +++++ src/arch/stm32l4xxx/peripherals/usart.c | 152 ++++++++ src/kern/delay.c | 9 + src/kern/dma/dma_manager.c | 311 ++++++++++++++++ src/kern/gpio/gpio_manager.c | 402 +++++++++++++++++++++ src/kern/gpio/sysled.c | 14 + src/kern/init.c | 82 +++++ src/kern/lib.c | 56 +++ src/kern/log.c | 55 +++ src/kern/main.c | 29 ++ src/kern/mem.c | 280 ++++++++++++++ src/kern/stdlibrepl.c | 13 + src/kern/string.c | 9 + src/kern/vector.c | 0 test_harness/Makefile | 9 + test_harness/fake_env.c | 63 ++++ test_harness/fake_env.h | 20 + test_harness/test_harness.c | 181 ++++++++++ test_harness/test_harness.h | 101 ++++++ tests/metatest.c | 22 ++ tests/test_dma.c | 189 ++++++++++ tests/test_gpio.c | 194 ++++++++++ tests/test_irq.c | 43 +++ tests/test_lib.c | 21 ++ tests/test_memory.c | 378 +++++++++++++++++++ tests/test_spi.c | 11 + tests/test_usart.c | 22 ++ 185 files changed, 5109 insertions(+), 9540 deletions(-) create mode 100644 .gdbinit create mode 100644 .ycm_extra_conf.py delete mode 100644 00-hello/Makefile delete mode 100644 00-hello/README delete mode 100644 00-hello/linker_script.ld delete mode 100644 00-hello/main.c delete mode 100644 01-system-clock/Makefile.preamble delete mode 100644 01-system-clock/README delete mode 100755 01-system-clock/genmake.pl delete mode 100644 01-system-clock/include/clock.h delete mode 100644 01-system-clock/include/common.h delete mode 100644 01-system-clock/include/delay.h delete mode 100644 01-system-clock/include/flash.h delete mode 100644 01-system-clock/include/gpio.h delete mode 100644 01-system-clock/include/isr_vector.h delete mode 100644 01-system-clock/include/rcc.h delete mode 100644 01-system-clock/include/spin.h delete mode 100644 01-system-clock/linker/linker_script.ld delete mode 100644 01-system-clock/src/clock.c delete mode 100644 01-system-clock/src/delay.c delete mode 100644 01-system-clock/src/gpio.c delete mode 100644 01-system-clock/src/isr_vector.c delete mode 100644 01-system-clock/src/main.c delete mode 100644 01-system-clock/src/spin.c delete mode 100644 01-system-clock/src/vector.c delete mode 100644 02-usart/.gdbinit delete mode 100644 02-usart/.ycm_extra_conf.py delete mode 100644 02-usart/Makefile.preamble delete mode 100755 02-usart/genmake.pl delete mode 100644 02-usart/include/arch/arm/arch.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/apb.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/clock.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/dma.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/flash.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/gpio.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/irq.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/isrs.inc delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/nvic.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/rcc.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/spi.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/system.h delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/tables/stm32l432xx/gpio/afn_table.inc delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/tables/stm32l432xx/gpio/port_table.inc delete mode 100644 02-usart/include/arch/stm32l4xxx/peripherals/usart.h delete mode 100644 02-usart/include/arch/x86_64/arch.h delete mode 100644 02-usart/include/kern/common.h delete mode 100644 02-usart/include/kern/delay.h delete mode 100644 02-usart/include/kern/dma/dma_manager.h delete mode 100644 02-usart/include/kern/gpio/gpio_manager.h delete mode 100644 02-usart/include/kern/gpio/sysled.h delete mode 100644 02-usart/include/kern/init.h delete mode 100644 02-usart/include/kern/lib.h delete mode 100644 02-usart/include/kern/log.h delete mode 100644 02-usart/include/kern/mem.h delete mode 100644 02-usart/include/kern/string.h delete mode 100644 02-usart/linker/linker_script.ld delete mode 100644 02-usart/src/arch/stm32l4xxx/peripherals/clock.c delete mode 100644 02-usart/src/arch/stm32l4xxx/peripherals/irq.c delete mode 100644 02-usart/src/arch/stm32l4xxx/peripherals/usart.c delete mode 100644 02-usart/src/kern/delay.c delete mode 100644 02-usart/src/kern/dma/dma_manager.c delete mode 100644 02-usart/src/kern/gpio/gpio_manager.c delete mode 100644 02-usart/src/kern/gpio/sysled.c delete mode 100644 02-usart/src/kern/init.c delete mode 100644 02-usart/src/kern/lib.c delete mode 100644 02-usart/src/kern/log.c delete mode 100644 02-usart/src/kern/main.c delete mode 100644 02-usart/src/kern/mem.c delete mode 100644 02-usart/src/kern/stdlibrepl.c delete mode 100644 02-usart/src/kern/string.c delete mode 100644 02-usart/src/kern/vector.c delete mode 100644 02-usart/test_harness/Makefile delete mode 100644 02-usart/test_harness/fake_env.c delete mode 100644 02-usart/test_harness/fake_env.h delete mode 100644 02-usart/test_harness/test_harness.c delete mode 100644 02-usart/test_harness/test_harness.h delete mode 100644 02-usart/tests/metatest.c delete mode 100644 02-usart/tests/test_dma.c delete mode 100644 02-usart/tests/test_gpio.c delete mode 100644 02-usart/tests/test_irq.c delete mode 100644 02-usart/tests/test_lib.c delete mode 100644 02-usart/tests/test_memory.c delete mode 100644 02-usart/tests/test_spi.c delete mode 100644 02-usart/tests/test_usart.c delete mode 100644 02.5-collatz/Makefile.preamble delete mode 100755 02.5-collatz/genmake.pl delete mode 100644 02.5-collatz/include/apb.h delete mode 100644 02.5-collatz/include/clock.h delete mode 100644 02.5-collatz/include/common.h delete mode 100644 02.5-collatz/include/delay.h delete mode 100644 02.5-collatz/include/flash.h delete mode 100644 02.5-collatz/include/gpio.h delete mode 100644 02.5-collatz/include/isr_vector.h delete mode 100644 02.5-collatz/include/rcc.h delete mode 100644 02.5-collatz/include/spin.h delete mode 100644 02.5-collatz/include/usart.h delete mode 100644 02.5-collatz/linker/linker_script.ld delete mode 100644 02.5-collatz/src/clock.c delete mode 100644 02.5-collatz/src/delay.c delete mode 100644 02.5-collatz/src/gpio.c delete mode 100644 02.5-collatz/src/isr_vector.c delete mode 100644 02.5-collatz/src/main.c delete mode 100644 02.5-collatz/src/spin.c delete mode 100644 02.5-collatz/src/usart.c delete mode 100644 02.5-collatz/src/vector.c delete mode 100644 03-refactor/Makefile.preamble delete mode 100755 03-refactor/genmake.pl delete mode 100644 03-refactor/include/apb.h delete mode 100644 03-refactor/include/clock.h delete mode 100644 03-refactor/include/common.h delete mode 100644 03-refactor/include/delay.h delete mode 100644 03-refactor/include/flash.h delete mode 100644 03-refactor/include/gpio.h delete mode 100644 03-refactor/include/isr_vector.h delete mode 100644 03-refactor/include/printf.h delete mode 100644 03-refactor/include/rcc.h delete mode 100644 03-refactor/include/spin.h delete mode 100644 03-refactor/include/usart.h delete mode 100644 03-refactor/linker/linker_script.ld delete mode 100644 03-refactor/src/clock.c delete mode 100644 03-refactor/src/delay.c delete mode 100644 03-refactor/src/gpio.c delete mode 100644 03-refactor/src/isr_vector.c delete mode 100644 03-refactor/src/main.c delete mode 100644 03-refactor/src/printf.c delete mode 100644 03-refactor/src/spin.c delete mode 100644 03-refactor/src/usart.c delete mode 100644 03-refactor/src/vector.c create mode 100644 Makefile.preamble create mode 100755 genmake.pl create mode 100644 include/arch/arm/arch.h create mode 100644 include/arch/stm32l4xxx/peripherals/apb.h create mode 100644 include/arch/stm32l4xxx/peripherals/clock.h create mode 100644 include/arch/stm32l4xxx/peripherals/dma.h create mode 100644 include/arch/stm32l4xxx/peripherals/flash.h create mode 100644 include/arch/stm32l4xxx/peripherals/gpio.h create mode 100644 include/arch/stm32l4xxx/peripherals/irq.h create mode 100644 include/arch/stm32l4xxx/peripherals/isrs.inc create mode 100644 include/arch/stm32l4xxx/peripherals/nvic.h create mode 100644 include/arch/stm32l4xxx/peripherals/rcc.h create mode 100644 include/arch/stm32l4xxx/peripherals/spi.h create mode 100644 include/arch/stm32l4xxx/peripherals/system.h create mode 100644 include/arch/stm32l4xxx/peripherals/tables/stm32l432xx/gpio/afn_table.inc create mode 100644 include/arch/stm32l4xxx/peripherals/tables/stm32l432xx/gpio/port_table.inc create mode 100644 include/arch/stm32l4xxx/peripherals/usart.h create mode 100644 include/arch/x86_64/arch.h create mode 100644 include/kern/common.h create mode 100644 include/kern/delay.h create mode 100644 include/kern/dma/dma_manager.h create mode 100644 include/kern/gpio/gpio_manager.h create mode 100644 include/kern/gpio/sysled.h create mode 100644 include/kern/init.h create mode 100644 include/kern/lib.h create mode 100644 include/kern/log.h create mode 100644 include/kern/mem.h create mode 100644 include/kern/string.h create mode 100644 linker/linker_script.ld create mode 100644 src/arch/stm32l4xxx/peripherals/clock.c create mode 100644 src/arch/stm32l4xxx/peripherals/irq.c create mode 100644 src/arch/stm32l4xxx/peripherals/usart.c create mode 100644 src/kern/delay.c create mode 100644 src/kern/dma/dma_manager.c create mode 100644 src/kern/gpio/gpio_manager.c create mode 100644 src/kern/gpio/sysled.c create mode 100644 src/kern/init.c create mode 100644 src/kern/lib.c create mode 100644 src/kern/log.c create mode 100644 src/kern/main.c create mode 100644 src/kern/mem.c create mode 100644 src/kern/stdlibrepl.c create mode 100644 src/kern/string.c create mode 100644 src/kern/vector.c create mode 100644 test_harness/Makefile create mode 100644 test_harness/fake_env.c create mode 100644 test_harness/fake_env.h create mode 100644 test_harness/test_harness.c create mode 100644 test_harness/test_harness.h create mode 100644 tests/metatest.c create mode 100644 tests/test_dma.c create mode 100644 tests/test_gpio.c create mode 100644 tests/test_irq.c create mode 100644 tests/test_lib.c create mode 100644 tests/test_memory.c create mode 100644 tests/test_spi.c create mode 100644 tests/test_usart.c diff --git a/.gdbinit b/.gdbinit new file mode 100644 index 0000000..87932b3 --- /dev/null +++ b/.gdbinit @@ -0,0 +1 @@ +set follow-fork-mode child diff --git a/.ycm_extra_conf.py b/.ycm_extra_conf.py new file mode 100644 index 0000000..8203412 --- /dev/null +++ b/.ycm_extra_conf.py @@ -0,0 +1,21 @@ +import os +import ycm_core + +flags = [ + '-Wall', + '-DFOR_TESTING', + '-Iinclude', + '-Iinclude/arch/arm', + '-Itest_harness/', + '-DARCH_STMT32L4', + '-DDRY_RUN', + # -Iinclude/arch/arm -Itest_harness/ -DARCH_STM32L4 -DDRY_RUN -Wall -DFOR_TESTINGk + ] + +SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', ] + +def FlagsForFile( filename, **kwargs ): + return { + 'flags': flags, + 'do_cache': True + } diff --git a/00-hello/Makefile b/00-hello/Makefile deleted file mode 100644 index 9c62c90..0000000 --- a/00-hello/Makefile +++ /dev/null @@ -1,17 +0,0 @@ -OPT?=-O3 -all: main.bin - -main.s: main.c - arm-unknown-eabi-gcc $(OPT) -S main.c -mcpu=cortex-m4 -mthumb -g - -main.elf: main.c - arm-unknown-eabi-gcc $(OPT) main.c -mcpu=cortex-m4 -mthumb -g -lgcc -T linker_script.ld -Xlinker --cref -Xlinker -Map -Xlinker main.map -nostartfiles -o main.elf - -main.bin: main.elf - arm-unknown-eabi-objcopy -O binary main.elf main.bin - -flash: main.bin - st-flash write main.bin 0x8000000 - -clean: - rm -f *.elf *.bin diff --git a/00-hello/README b/00-hello/README deleted file mode 100644 index b9d0788..0000000 --- a/00-hello/README +++ /dev/null @@ -1,19 +0,0 @@ -Welcome to Level 1 ------------------- - -This is a VERY simple program for the STM32L432 Nucleo-32 board. It simply -iterates turning on the status led (LD3) and the pin D6. - -There is NO clock setting or anything, everything is the default bootup. - -There is a single source file, main.c, which defines all the code needed. - -There is a linker script which sets up the binary format properly ready to -be flashed. - -This code can be flashed with - - $ make flash - -this requires the program `st-flash` which is a part of the stlink programmer, -which can be found at https://github.com/texane/stlink.git. diff --git a/00-hello/linker_script.ld b/00-hello/linker_script.ld deleted file mode 100644 index fe0c14b..0000000 --- a/00-hello/linker_script.ld +++ /dev/null @@ -1,14 +0,0 @@ -MEMORY -{ - flash : org = 0x08000000, len = 256k -} - -SECTIONS -{ - /* This is where the code goes. */ - . = ORIGIN(flash); - .text : { - *(.vectors); /* All .vector sections go here. */ - *(.text); /* All .text sections go here. */ - } >flash -} diff --git a/00-hello/main.c b/00-hello/main.c deleted file mode 100644 index fe2b9d5..0000000 --- a/00-hello/main.c +++ /dev/null @@ -1,354 +0,0 @@ -#define __IO volatile - -#include -#define RCC_BASE_2 0x40021000 - -int main(); -void spin(); - -/* - * Interrupt service routine handlers. - */ -const void* vectors[] __attribute__((section(".vectors"))) = { - (void*)0x2000c000, /* Top of stack at top of sram1. 48k */ - main, /* Reset handler */ - spin, /* NMI */ - spin, /* Hard Fault */ - spin, /* MemManage */ - spin, /* BusFault */ - spin, /* UsageFault */ - spin, /* Reserved */ - spin, /* Reserved */ - spin, /* Reserved */ - spin, /* Reserved */ - spin, /* SVCall */ - spin, /* Debug */ - spin, /* Reserved */ - spin, /* PendSV */ - spin, /* SysTick */ - - /* External interrupt handlers follow */ - spin, /* 0 WWDG */ - spin, /* 1 PVD */ - spin, /* 2 TAMP_SAMP */ - spin, /* 3 RTC_WKUP */ - spin, /* 4 FLASH */ - spin, /* 5 RCC */ - spin, /* 6 EXTI0 */ - spin, /* 7 EXTI1 */ - spin, /* 8 EXTI2 */ - spin, /* 9 EXTI3 */ - spin, /* 10 EXTI4 */ - spin, /* 11 DMA_CH1 */ - spin, /* 12 DMA_CH2 */ - spin, /* 13 DMA_CH3 */ - spin, /* 14 DMA_CH4 */ - spin, /* 15 DMA_CH5 */ - spin, /* 16 DMA_CH6 */ - spin, /* 17 DMA_CH7 */ - spin, /* 18 ADC1 */ - spin, /* 19 CAN_TX */ - spin, /* 20 CAN_RX0 */ - spin, /* 21 CAN_RX1 */ - spin, /* 22 CAN_SCE */ - spin, /* 23 EXTI9_5 */ - spin, /* 24 TIM1_BRK/TIM15 */ - spin, /* 25 TIM1_UP/TIM16 */ - spin, /* 26 TIM1_TRG_COM */ - spin, /* 27 TIM1_CC */ - spin, /* 28 TIM2 */ - spin, /* 29 Reserved */ - spin, /* 30 Reserved */ - spin, /* 31 I2C1_EV */ - spin, /* 32 I2C1_ER */ - spin, /* 33 I2C2_EV */ - spin, /* 34 I2C2_ER */ - spin, /* 35 SPI1 */ - spin, /* 36 SPI2 */ - spin, /* 37 USART1 */ - spin, /* 38 USART2 */ - spin, /* 39 USART3 */ - spin, /* 40 EXTI15_10 */ - spin, /* 41 RTCAlarm */ - spin, /* 42 Reserved */ - spin, /* 43 Reserved */ - spin, /* 44 Reserved */ - spin, /* 45 Reserved */ - spin, /* 46 Reserved */ - spin, /* 47 Reserved */ - spin, /* 48 Reserved */ - spin, /* 49 SDMMC1 */ - spin, /* 50 Reserved */ - spin, /* 51 SPI3 */ - spin, /* 52 Reserved */ - spin, /* 53 Reserved */ - spin, /* 54 TIM6_DACUNDER */ - spin, /* 55 TIM7 */ - spin, /* 56 DMA2_CH1 */ - spin, /* 57 DMA2_CH2 */ - spin, /* 58 DMA2_CH3 */ - spin, /* 59 DMA2_CH4 */ - spin, /* 60 DMA2_CH5 */ - spin, /* 61 Reserved */ - spin, /* 62 Reserved */ - spin, /* 63 Reserved*/ - spin, /* 64 COMP */ - spin, /* 65 LPTIM1 */ - spin, /* 66 LPTIM2 */ - spin, /* 67 USB_FS */ - spin, /* 68 DMA_CH6 */ - spin, /* 69 DMA_CH7 */ - spin, /* 70 LPUART1 */ - spin, /* 71 QUADSPI */ - spin, /* 72 I2C3_EV */ - spin, /* 73 I2C3_ER */ - spin, /* 74 SAI1 */ - spin, /* 75 Reserved */ - spin, /* 76 SWPMI1 */ - spin, /* 77 TSC */ - spin, /* 78 Reserved */ - spin, /* 79 AES */ - spin, /* 80 RNG */ - spin, /* 81 FPU */ - spin /* 82 CRS */ -}; - -typedef struct { - __IO uint32_t value; -} rcc_reg_t; - -#define RCC_AHB2ENR (*((__IO rcc_reg_t*)(RCC_BASE_2 + 0x4c))) - -typedef enum { - GPIO_PORT_A = 0, - GPIO_PORT_B = 1, - GPIO_PORT_C = 2, - GPIO_PORT_D = 3 -} gpio_port_number_t; - -void enable_gpio(gpio_port_number_t port) -{ - RCC_AHB2ENR.value |= 1 << port; -} - -typedef enum { - PIN_0 = 0, - PIN_1 = 1, - PIN_2 = 2, - PIN_3 = 3, - PIN_4 = 4, - PIN_5 = 5, - PIN_6 = 6, - PIN_7 = 7, - PIN_8 = 8, - PIN_9 = 9, - PIN_10 = 10, - PIN_11 = 11, - PIN_12 = 12, - PIN_13 = 13, - PIN_14 = 14, - PIN_15 = 15 -} pin_t; - -typedef enum { - MODE_INPUT = 0, - MODE_OUTPUT = 1, - MODE_ALTERNATE = 2, - MODE_ANALOG = 3 -} pin_mode_t; - -/* GPIO port speed. */ -typedef enum { - SPEED_2MHZ = 0, - SPEED_10MHZ = 1, - SPEED_50MHZ = 3, -} speed_t; - -/* - * Mode register. Input, output, alternate functiont or analog. - */ -typedef struct { - __IO uint32_t value; -} __attribute__((packed)) mode_reg_t; - -/* - * Type register. Push/pull or open drain. - */ -typedef struct { - __IO uint32_t value; -} __attribute__((packed)) type_reg_t; - -/* - * Speed register. Allows low, meduim, fast or high speed. - */ -typedef struct { - __IO uint32_t value; -} __attribute__((packed)) speed_reg_t; - -/* - * Pull up/pull down register. Allows pull up, pull down, or no pull up or - * pull down. - */ -typedef struct { - __IO uint32_t value; -} __attribute__((packed)) pull_reg_t; - -/* - * Stores the data for reading from the outside. - */ -typedef struct { - __IO uint32_t value; -} __attribute__((packed)) input_data_reg_t; - -/* - * Stores the data for writing to the outside. - */ -typedef struct { - __IO uint32_t value; -} __attribute__((packed)) output_data_reg_t; - -/* - * Writing a 1 to a bit in this register allows the user to set or reset a bit - * in the output data register. - */ -typedef struct { - __IO uint32_t value; -} __attribute__((packed)) bit_set_reset_reg_t; - -/* - * Lock register. Allows the user to lock a pin so that its value cannot be - * changed. - */ -typedef struct { - __IO uint32_t value; -} __attribute__((packed)) lock_reg_t; - -/* - * Alternate function. - */ -typedef struct { - __IO uint32_t value_high; - __IO uint32_t value_low; -} __attribute__((packed)) alt_function_reg_t; - -/* Structure defining the layout of a GPIO port on the STM32L432. */ -typedef struct { - __IO mode_reg_t mode; /* Mode register */ - __IO pull_reg_t pupd; /* Pull up/pull down/none register */ - __IO speed_reg_t speed; /* Speed register */ - __IO type_reg_t type; /* Type register */ - __IO input_data_reg_t input; /* Input data register */ - __IO output_data_reg_t output; /* Output data register */ - __IO bit_set_reset_reg_t bsr; /* Bit set/reset register */ - __IO lock_reg_t lock; /* Lock register */ - __IO alt_function_reg_t altfn; /* Alternate function registers */ -} __attribute__((packed)) gpio_port_t; - -/* - * Defines for GPIO memory mapped addresses. - */ -#define GPIO_A (*((__IO gpio_port_t*)0x48000000)) -#define GPIO_B (*((__IO gpio_port_t*)0x48000400)) -#define GPIO_C (*((__IO gpio_port_t*)0x48000800)) - -/* - * Delays for `delay` iterations. - */ -void delay(uint32_t delay) -{ - while (delay--) { - // Empty volatile assembly to keep the optimizer from getting - // rid of this loop entirely. - asm volatile(""); - } -} - -/* - * Sets the mode of a pin on a gpio port. - * - * gpio_port: the gpio port. - * pin: the number of the port; - * pin_mode: the mode of the pin. See pin_mode_t enum. - */ -void set_gpio_pin_mode( - __IO gpio_port_t* gpio_port, uint32_t pin, pin_mode_t pin_mode) -{ - gpio_port->mode.value &= ~(0x03 << pin * 2); - gpio_port->mode.value |= pin_mode << pin * 2; -} - -/* - * Sets the value on an output GPIO pin. - * - * gpio_port: The gpio port. - * pin: the number of the pin to enable. Values 0-15 - * val: 0 to set the gpio pin to low, non-zero to set to high. - */ -void set_gpio_pin(__IO gpio_port_t* gpio_port, uint32_t pin, int val) -{ - if (val) { - gpio_port->output.value |= 1 << pin; - } else { - gpio_port->output.value &= ~(1 << pin); - } -} - -/* Main function. This gets executed from the interrupt vector defined above. */ -int main() -{ - /* Enable the GPIO port B. */ - enable_gpio(GPIO_PORT_B); - - /* Set pin 3 and pin 1 of GPIO_B to be an output pin. */ - set_gpio_pin_mode(&GPIO_B, /* pin = */ 3, MODE_OUTPUT); - set_gpio_pin_mode(&GPIO_B, /* pin = */ 1, MODE_OUTPUT); - - while (1) { - /* Set the GPIO pin to high. */ - set_gpio_pin(&GPIO_B, /* pin = */ 3, 1); - set_gpio_pin(&GPIO_B, /* pin = */ 1, 0); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - - /* Set the GPIO pin to low. */ - set_gpio_pin(&GPIO_B, /* pin = */ 3, 0); - set_gpio_pin(&GPIO_B, /* pin = */ 1, 1); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - delay(65535); - } -} - -/* - * Does nothing ... forever. - */ -void spin() -{ - for (;;) { - /* Flash in a distinct pattern to know that something went wrong. */ - - set_gpio_pin(&GPIO_B, /* pin = */ 3, 0); - delay(100000); - set_gpio_pin(&GPIO_B, /* pin = */ 3, 1); - delay(100000); - set_gpio_pin(&GPIO_B, /* pin = */ 3, 0); - delay(100000); - set_gpio_pin(&GPIO_B, /* pin = */ 3, 1); - delay(500000); - } -} diff --git a/01-system-clock/Makefile.preamble b/01-system-clock/Makefile.preamble deleted file mode 100644 index 3c8a61b..0000000 --- a/01-system-clock/Makefile.preamble +++ /dev/null @@ -1,21 +0,0 @@ -OPT?=-O -PREFIX?=arm-unknown-eabi- -CC=$(PREFIX)gcc -LD=$(PREFIX)ld -CFLAGS?=$(OPT) -mcpu=cortex-m4 -mthumb -g -lgcc -static -nostartfiles -Iinclude -LD_FLAGS?=-T linker/linker_script.ld -nostdlib --cref -Map linker/main.map -static - - -all: _$(PREFIX)_obs/main.elf - -_$(PREFIX)_obs/main.bin: _$(PREFIX)_obs/main.elf - $(PREFIX)objcopy -O binary _$(PREFIX)_obs/main.elf _$(PREFIX)_obs/main.bin - -flash: _$(PREFIX)_obs/main.bin - st-flash write _$(PREFIX)_obs/main.bin 0x8000000 - -clean: - rm -rf _*_obs - -genmake: - ./genmake.pl > Makefile diff --git a/01-system-clock/README b/01-system-clock/README deleted file mode 100644 index fb9b5df..0000000 --- a/01-system-clock/README +++ /dev/null @@ -1,17 +0,0 @@ -This is much more complex than the simple hello script, but most is boiler plate -designed to make future debugging easier. The first addition is a genmake -system where a Makefile may be generated with the command -`./genmake.pl > Makefile` and subsequently with `make genmake`. This will add -build rules for each `c` file. - -There are some added features as well: - -* This code loads values properly from the data and bss segments into memory so - global variables and global constants may be used. - -* This code can properly set the system clock, and does get a full 80MHz out - of it. - -* This code has a `spin()` function that flashes a "morse code" translation - of a binary error code. (1's are dashes, 0's are dots). Gives minimal feedback - until such a time where USART is implemented. diff --git a/01-system-clock/genmake.pl b/01-system-clock/genmake.pl deleted file mode 100755 index 341db3d..0000000 --- a/01-system-clock/genmake.pl +++ /dev/null @@ -1,70 +0,0 @@ -#!/usr/bin/perl - -# This script is designed to introspect C files and generate a makefile to use. - -sub header_deps { - my $file = @_[0]; - my @headers; - - if (open(my $fh, '<:encoding(UTF-8)', $file)) { - print STDERR "\x1b[35m[Trace] - Reading file $file\x1b[00m\n"; - push(@headers, $file); - - while (<$fh>) { - /#include\s+"(.*)"\s*$/ && push(@headers, header_deps("include/$1")); - } - } - - return @headers; -} - -my @files = glob('src/*.c'); -my @obj_files; - -open(my $fh, '<:encoding(UTF-8)', "Makefile.preamble") - or die "Missing Makefile.preamble"; - -while (<$fh>) { - print "$_"; -} - -# Emit a rule that will rerun genmake if the c files do not match. -my $idempotency_cmd = - "ls src/*.c include/*.h| sha1sum | awk '{print \$1}'"; - -my $idempotency_cmd_make = - "ls src/*.c include/*.h | sha1sum | awk '{print \$\$1}'"; - -print "IDEMPOTENCY_HASH=" . `$idempotency_cmd` . "\n"; - -my $arch_obs_dir = "_\$(PREFIX)_obs"; -print "CHEAT_PRE_MAKE := \$(shell mkdir -p $arch_obs_dir)\n"; - -foreach $file (@files) { - my $c_file = $file; - (my $file_no_ext = $file) =~ s/src\/(.*)\.c$/\1/g; - - my $obj_file = "$arch_obs_dir/${file_no_ext}.o"; - my $s_file = "${file_no_ext}.s"; - - push(@obj_files, $obj_file); - my @deps = header_deps($c_file); - - my $deps_as_join = join(" ", @deps); - - # Emit the rule to make the object file. - print "$obj_file: $deps_as_join\n\t"; - print '$(CC) -c ' . $c_file . ' -o ' . $obj_file . ' $(CFLAGS)' . "\n\n"; - - # Emit the rule to make the assembly file. - print "$s_file: $deps_as_join\n\t"; - print '$(CC) -S ' . $c_file . ' -o ' . $s_file . ' $(CFLAGS)' . "\n\n"; -} - -my $obj_files_deps = join(' ', @obj_files); -print "FORCE:\n\t\n\n"; -print "$arch_obs_dir/main.elf: FORCE $obj_files_deps linker/linker_script.ld\n\t"; -print "([ \"\$\$($idempotency_cmd_make)\" != \"\$(IDEMPOTENCY_HASH)\" ] " - . "&& ./genmake.pl > Makefile && make main.elf ) " - . "|| " - . "\$(LD) -o $arch_obs_dir/main.elf \$(LD_FLAGS) $obj_files_deps\n\n"; diff --git a/01-system-clock/include/clock.h b/01-system-clock/include/clock.h deleted file mode 100644 index de4fb96..0000000 --- a/01-system-clock/include/clock.h +++ /dev/null @@ -1,118 +0,0 @@ -#ifndef CLOCK_H__ -#define CLOCK_H__ - -#include -#include "rcc.h" - -#define PERIPH_BASE ((uint32_t)0x40000000) -#define AHBPERIPH_BASE (PERIPH_BASE + 0x00020000) -#define FLASH_R_BASE (AHBPERIPH_BASE + 0x00003C00) -#define PWR_BASE (PERIPH_BASE + 0x7000) -#define PWR_CSR_VOSF ((uint16_t)0x0010) /*!< Voltage Scaling select flag */ - -#ifndef __IO -#define __IO volatile -#endif - -typedef struct { - __IO uint32_t cr; - __IO uint32_t csr; -} pwr_t; - -// typedef struct { -// __IO uint32_t acr; -// __IO uint32_t pecr; -// __IO uint32_t pdkeyr; -// __IO uint32_t pekeyr; -// __IO uint32_t prgkeyr; -// __IO uint32_t optkeyr; -// __IO uint32_t sr; -// __IO uint32_t obr; -// __IO uint32_t wrpr; -// } flash_t; - -// #define FLASH (*(flash_t*) (FLASH_R_BASE)) -#define PWR (*(pwr_t*)(PWR_BASE)) - -/* Valid values for the PLLR/PLLQ bits of the PLLCFG register. */ -typedef enum { - PLL_DIVISOR_2 = 1, - PLL_DIVISOR_4 = 3, - PLL_DIVISOR_6 = 5, - PLL_DIVISOR_8 = 7, - PLL_DIVISOR_OFF = 0, -} pll_divisor_t; - -/* Valid values for the PLLP bits off the PLLCFG register. */ -typedef enum { - PLLP_DIVISOR_7 = 1, - PLLP_DIVISOR_17 = 3, - PLLP_DIVISOR_OFF = 0, -} pllp_divisor_t; - -/* Valid values for the PLLM bits of the PLLCFG register. */ -typedef enum { - PLLM_DIVISOR_1 = 0, - PLLM_DIVISOR_2 = 1, - PLLM_DIVISOR_3 = 2, - PLLM_DIVISOR_4 = 3, - PLLM_DIVISOR_5 = 4, - PLLM_DIVISOR_6 = 5, - PLLM_DIVISOR_7 = 6, - PLLM_DIVISOR_8 = 7, -} pllm_divisor_t; - -/* Possible sources for the input clock. */ -typedef enum { - PLL_SRC_NONE = 0, - PLL_SRC_MSI = 1, - PLL_SRC_HSI = 2, - PLL_SRC_HSE = 3, -} pll_src_t; - -/* Valid sources for the system clock. */ -typedef enum { - SYSTEM_CLOCK_SRC_MSI = 0, - SYSTEM_CLOCK_SRC_HSI = 1, - SYSTEM_CLOCK_SRC_HSE = 2, - SYSTEM_CLOCK_SRC_PLL = 3, -} system_clock_src_t; - -#define E_BADPLLN (-2) -#define E_BADPLLP_DIV (-1) -#define E_TIMEOUT (-3) -#define E_NOT_OFF (-4) -#define E_BAD_ARG (-5) - -/* - * Sets the system clock to a full 80Mhz. - */ -int set_system_clock_MHz(uint8_t mhz); - -/* - * Set the PLL on. - */ -int pll_on(); - -/* - * Set the PLL off. - */ -int pll_off(); - -/* - * Sets the source of the system clock. - */ -int set_system_clock_src(system_clock_src_t src); - -/* - * Configure the PLL. - */ -int configure_pll( - uint8_t pllp_div_factor, pll_divisor_t pllr, /* System clock divisor. */ - pll_divisor_t pllq, /* Divison factor for PLL48M1CLK. */ - pllp_divisor_t pllp, /* Divison factor for PLLSAI2CLK. */ - uint8_t plln, /* PLL numerator. */ - pllm_divisor_t pllm, /* PLL denominator. */ - pll_src_t pllsrc /* PLL source */); - -#endif /* CLOCK_H__ */ diff --git a/01-system-clock/include/common.h b/01-system-clock/include/common.h deleted file mode 100644 index 6fc701c..0000000 --- a/01-system-clock/include/common.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef COMMON__H -#define COMMON__H - -/* Define __IO to be volatile if it's not already. */ -#ifndef __IO -#define __IO volatile -#endif - -#define bool int - -#define PACKED __attribute__((packed)) -#define BIT(n) (1 << (n)) - -#endif /* COMMON_H */ diff --git a/01-system-clock/include/delay.h b/01-system-clock/include/delay.h deleted file mode 100644 index 65a26d6..0000000 --- a/01-system-clock/include/delay.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef H__DELAY__ -#define H__DELAY__ - -#include - -/* - * Loops and count-downs the delay, the time this takes depends on the speed - * of the clock. - */ -void delay(uint32_t delay); - -#endif /* H__DELAY__ */ diff --git a/01-system-clock/include/flash.h b/01-system-clock/include/flash.h deleted file mode 100644 index a163a25..0000000 --- a/01-system-clock/include/flash.h +++ /dev/null @@ -1,20 +0,0 @@ -#ifndef H__FLASH_ -#define H__FLASH_ - -#include "common.h" - -/* - * Header file for dealing with flash. - */ - -#define FLASH_BASE 0x40022000 - -typedef struct { - __IO uint32_t ac_r; /* Flash access control register. */ - - /* TODO fill out the rest. */ -} PACKED flash_t; - -#define FLASH (*(__IO flash_t*)FLASH_BASE) - -#endif /* H__FLASH_ */ diff --git a/01-system-clock/include/gpio.h b/01-system-clock/include/gpio.h deleted file mode 100644 index a8f06e2..0000000 --- a/01-system-clock/include/gpio.h +++ /dev/null @@ -1,120 +0,0 @@ -#ifndef GPIO_H__ -#define GPIO_H__ - -#include "common.h" - -#include - -/* - * Possible GPIO ports. - */ -typedef enum { - GPIO_PORT_A = 0, - GPIO_PORT_B = 1, - GPIO_PORT_C = 2, - GPIO_PORT_D = 3 -} gpio_port_number_t; - -/* - * Structure defining the layout of the layout of the GPIO registers on the - * stm32l432 development board. - */ -typedef struct GPIO_PORT_STR { - __IO uint32_t mode_r; /* Mode register */ - __IO uint32_t pupd_r; /* Pull up/pull down/none register */ - __IO uint32_t speed_r; /* Speed register */ - __IO uint32_t type_r; /* Type register */ - __IO uint32_t input_r; /* Input data register */ - __IO uint32_t output_r; /* Output data register */ - __IO uint32_t bsr_r; /* Bit set/reset register */ - __IO uint32_t lock_r; /* Lock register */ - __IO uint32_t altfn_r; /* Alternate function register */ -} PACKED gpio_port_t; - -/* - * Enum defining the PINs in a GPIO port. Each port has 16 pins to use in - * the stm32l432. - */ -typedef enum GPIO_PIN_ENUM { - PIN_0 = 0, - PIN_1 = 1, - PIN_2 = 2, - PIN_3 = 3, - PIN_4 = 4, - PIN_5 = 5, - PIN_6 = 6, - PIN_7 = 7, - PIN_8 = 8, - PIN_9 = 9, - PIN_10 = 10, - PIN_11 = 11, - PIN_12 = 12, - PIN_13 = 13, - PIN_14 = 14, - PIN_15 = 15 -} gpio_pin_t; - -/* - * Enum defining the pin modes that are possible. - */ -typedef enum { - MODE_INPUT = 0, - MODE_OUTPUT = 1, - MODE_ALTERNATE = 2, - MODE_ANALOG = 3 -} gpio_pin_mode_t; - -/* - * Enum defining the pin speeds that are possible. - */ -typedef enum { - SPEED_2MHZ = 0, - SPEED_10MHZ = 1, - SPEED_50MHZ = 3, -} speed_t; - -/* - * Structure defining an OUTPUT pin. Structurally equivalent to the input pin, - * but can be used in a slightly type-safe manner. - */ -typedef struct { - __IO gpio_port_t* gpio_port; - gpio_pin_t pin; -} gpio_output_pin_t; - -/* - * Sets the mode on a GPIO pin. - * - * gpio_port: the gpio port to use. - * pin: the pin number to set. - * pin_mode: the mode to set the pin to. - */ -void set_gpio_pin_mode( - __IO gpio_port_t* gpio_port, gpio_pin_t pin, gpio_pin_mode_t pin_mode); - -/* - * Sets the given GPIO pin to be an output pin. Returns an output_pin struct - * corresponding to - */ -gpio_output_pin_t set_gpio_pin_output( - __IO gpio_port_t* gpio_port, gpio_pin_t pin); - -/* - * Sets an output pin on or off. - * - * pin: the pin to toggle. - * onoff: 0 for off, non-zero of on. - */ -void set_gpio_output_pin(gpio_output_pin_t pin, bool onoff); - -#define pin_on(p) set_gpio_output_pin(p, 1) - -#define pin_off(p) set_gpio_output_pin(p, 0) - -/* - * Enables a GPIO port and returns a reference to the register definition - * of that GPIO port. - */ -__IO gpio_port_t* enable_gpio(gpio_port_number_t number); - -#endif /* GPIO_H__ */ diff --git a/01-system-clock/include/isr_vector.h b/01-system-clock/include/isr_vector.h deleted file mode 100644 index 3e55f52..0000000 --- a/01-system-clock/include/isr_vector.h +++ /dev/null @@ -1,20 +0,0 @@ -#ifndef h__ISR_VECTOR_H__ -#define h__ISR_VECTOR_H__ - -/* - * Include file for interrupt service routines. - */ - -/* - * The interrupt service routines. These link in the function `main` as the - * main function. - */ -extern const void* isr_vector[]; - -/* - * Defines an error state. This loops forever and defines a distinct flashing - * pattern to let the user know an unhandled ISR happened. - */ -void unhandled_isr(); - -#endif /* h___ISR_VECTOR_H__ */ diff --git a/01-system-clock/include/rcc.h b/01-system-clock/include/rcc.h deleted file mode 100644 index 4eeb26b..0000000 --- a/01-system-clock/include/rcc.h +++ /dev/null @@ -1,81 +0,0 @@ -#ifndef H__RCC_ -#define H__RCC_ - -#include "common.h" - -#define RCC_BASE ((uint32_t)0x40021000) - -typedef struct { - __IO uint32_t c_r; /* Clock control register. 0x00 */ - __IO uint32_t icsc_r; /* Internal clock srcs calibration register. 0x04 */ - __IO uint32_t cfg_r; /* clock confguration register. 0x08 */ - __IO uint32_t pllcfg_r; /* PLL Configuration register. 0x0c */ - __IO uint32_t pllsai1cfg_r; /* PLLSAI1 configuration register. 0x10 */ - - __IO uint32_t reserved_1; /* Not used. offset 0x14. */ - - __IO uint32_t cie_r; /* Clock interrupt enable register. 0x18 */ - __IO uint32_t cif_r; /* Clock interrupt flag regiseter. 0x1c */ - __IO uint32_t cic_r; /* Clock interrupt clear register. 0x20 */ - - __IO uint32_t reserved_2; /* Not used. offset 0x24. */ - - __IO uint32_t ahb1rst_r; /* AHB Peripheral 1 reset register. 0x28 */ - __IO uint32_t ahb2rst_r; /* AHB Peripheral 2 reset register. 0x2c */ - __IO uint32_t ahb3rst_r; /* AHB Peripheral 3 reset register. 0x30 */ - - __IO uint32_t reserved_3; /* Not used. offset 0x34. */ - - __IO uint32_t abp1rst1_r; /* APB Peripheral reset register 1. 0x38 */ - __IO uint32_t abp1rst2_r; /* APB Peripheral reset register 2. 0x3C */ - __IO uint32_t abp2rst_r; /* APB Peripheral reset register. 0x40 */ - - __IO uint32_t reserved_4; /* Not used. offset 0x44. */ - - __IO uint32_t ahb1en_r; /* AHB1 Peripheral enable register. 0x48 */ - __IO uint32_t ahb2en_r; /* AHB2 Peripheral enable register. 0x4C */ - __IO uint32_t ahb3en_r; /* AHB3 Peripheral enable register. 0x50 */ - - __IO uint32_t reserved_5; /* Not used. offset 0x54. */ - - __IO uint32_t apb1en1_r; /* APB1 Peripheral enable register 1. 0x58 */ - __IO uint32_t apb1en2_r; /* APB1 Peripheral enable register 2. 0x5C */ - __IO uint32_t apb2en_r; /* APB2 Peripheral enable register. 0x60 */ - - __IO uint32_t reserved_6; /* Not used. offset 0x64. */ - - /* TODO add the rest starting at offset 0x68. */ - -} PACKED rcc_t; - -#define RCC (*(__IO rcc_t*)RCC_BASE) - -/* Macros to operate on the RCC registers. */ - -/* Sets the HSE. rcc is the RCC to use, e is zero for off, non-zero for on. */ -#define set_hse(rcc, e) \ - do { \ - if (e) { \ - (rcc).c_r |= 1 << 16; \ - } else { \ - (rcc).c_r &= ~(1 << 16); \ - } \ - } while (0) - -/* Sets the HSI. rcc is the RCC to use, e is zero for off, non-zero for on. */ -#define set_hsi(rcc, e) \ - do { \ - if (e) { \ - (rcc).c_r |= 1 << 8; \ - } else { \ - (rcc).c_r &= ~(1 << 8); \ - } \ - } while (0) - -/* Checks to see if the hse is ready. */ -#define hse_ready(rcc) ((rcc).c_r & (1 << 17)) - -/* Checks to see if the hse is ready. */ -#define hsi_ready(rcc) ((rcc).c_r & (1 << 10)) - -#endif diff --git a/01-system-clock/include/spin.h b/01-system-clock/include/spin.h deleted file mode 100644 index a23d25b..0000000 --- a/01-system-clock/include/spin.h +++ /dev/null @@ -1,15 +0,0 @@ -#ifndef H__SPIN_ -#define H__SPIN_ - -#include - -/* - * Flash a code on the status LED. - * - * The flash codes a binary from MSB to LSB. A long flash is a 1, a short flash - * is a 0. Each independent flashing is succeced by a break of 4 times that - * of a long flash. - */ -void spin(uint32_t base_delay, uint8_t code); - -#endif /* H__SPIN_ */ diff --git a/01-system-clock/linker/linker_script.ld b/01-system-clock/linker/linker_script.ld deleted file mode 100644 index 348d03b..0000000 --- a/01-system-clock/linker/linker_script.ld +++ /dev/null @@ -1,36 +0,0 @@ -MEMORY -{ - flash : org = 0x08000000, len = 256k - sram1 : org = 0x20000000, len = 48k - sram2 : org = 0x10000000, len = 16k -} - -SECTIONS -{ - /* This is where the code goes. */ - . = ORIGIN(flash); - .text : { - *(.vectors); /* All .vector sections go here. */ - *(.text); /* All .text sections go here. */ - } >flash - - .data : { - /* Data segment as defined in the flash. */ - INIT_DATA_VALUES = LOADADDR(.data); - - /* Data segment where it will be in memory. */ - DATA_SEGMENT_START = .; - *(.data); - DATA_SEGMENT_STOP = .; - - /* Align by 4 so we can optimize the copier to use uint32's. */ - . = ALIGN(0x04); - } >sram1 AT>flash - - BSS_START = .; - .bss : { - *(.bss); - . = ALIGN(0x04); - } > sram1 - BSS_END = .; -} diff --git a/01-system-clock/src/clock.c b/01-system-clock/src/clock.c deleted file mode 100644 index 75bac97..0000000 --- a/01-system-clock/src/clock.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * This file sets the system clock to its full glory of 80Mhz - */ - -#include "clock.h" -#include -#include "flash.h" -#include "gpio.h" -#include "spin.h" - -#define TIMEOUT 10000 - -int pll_off() -{ - uint32_t c; - - RCC.c_r &= ~BIT(24); /* Turn off pll. */ - for (c = 0; c < TIMEOUT && RCC.c_r & BIT(25); ++c) - ; /* Wait for OFF. */ - - if (c == TIMEOUT) { - return E_TIMEOUT; - } - - return 0; -} - -int pll_on() -{ - uint32_t c; - - RCC.c_r |= BIT(24); /* Turn on PLL. */ - for (c = 0; c < TIMEOUT && !(RCC.c_r & BIT(25)); ++c) - ; /* Wait for RDY. */ - - if (c == TIMEOUT) { - return E_TIMEOUT; - } - - return 0; -} - -int configure_pll( - uint8_t pllp_div_factor, pll_divisor_t pllr, /* System clock divisor. */ - pll_divisor_t pllq, /* Divison factor for PLL48M1CLK. */ - pllp_divisor_t pllp, /* Divison factor for PLLSAI2CLK. */ - uint8_t plln, /* PLL numerator. */ - pllm_divisor_t pllm, /* PLL denominator. */ - pll_src_t pllsrc /* PLL source */) -{ - if (RCC.c_r & BIT(25)) { - /* PLL must be off to configure it. */ - return E_NOT_OFF; - } - - /* Make sure inputs are valid. */ - if (pllp_div_factor == 1 || pllp_div_factor > 31) { - return E_BADPLLP_DIV; - } - if (plln < 8 || plln > 86) { - return E_BADPLLN; - } - - RCC.pllcfg_r = (pllp_div_factor << 27) | (pllr << 24) | (pllq << 20) | - (pllp << 16) | (plln << 8) | (pllm << 4) | (pllsrc << 0); - - return 0; -} - -int set_system_clock_MHz(uint8_t mhz) -{ - /* Set the source of the system colck to MSI temporarily. */ - set_system_clock_src(SYSTEM_CLOCK_SRC_MSI); - - if (mhz <= 8 || mhz > 80) { - return E_BAD_ARG; - } - - pll_off(); - - configure_pll( - 0 /* pllp_div_factor */, PLL_DIVISOR_4 /* pllr: VCO / 4 = mhz MHz. */, - PLL_DIVISOR_4 /* pllq: VCO / 4 = mhz MHz */, PLLP_DIVISOR_7 /* pllp */, - - /* The following set the frequency of VCO to (mhz*4)MHz: mhz * 1 * 4MHz. - */ - mhz /* plln | mhz */, PLLM_DIVISOR_1 /* pllm | 01 */, - PLL_SRC_MSI /* pll src | 04 Mhz */); - - pll_on(); - - /* Configure the flash to have 4 wait states. This is required at - * 80 MHz. */ - FLASH.ac_r &= ~0x07; - FLASH.ac_r |= 0x04; - - /* Set the source of the system colck to PLL. */ - set_system_clock_src(SYSTEM_CLOCK_SRC_PLL); - return 0; -} - -int set_system_clock_src(system_clock_src_t src) -{ - uint8_t value = RCC.cfg_r & ~0x03; - RCC.cfg_r = value | src; -} diff --git a/01-system-clock/src/delay.c b/01-system-clock/src/delay.c deleted file mode 100644 index 2a16d47..0000000 --- a/01-system-clock/src/delay.c +++ /dev/null @@ -1,9 +0,0 @@ -#include "delay.h" - -void delay(uint32_t delay) -{ - while (delay--) { - /* needed to keep the compiler from optimizing away the loop. */ - asm volatile(""); - } -} diff --git a/01-system-clock/src/gpio.c b/01-system-clock/src/gpio.c deleted file mode 100644 index 2404398..0000000 --- a/01-system-clock/src/gpio.c +++ /dev/null @@ -1,37 +0,0 @@ -#include "gpio.h" -#include "rcc.h" - -/* - * Sets the mode of a pin on a gpio por. - */ -void set_gpio_pin_mode( - __IO gpio_port_t* gpio_port, gpio_pin_t pin, gpio_pin_mode_t mode) -{ - /* Each pin has a 2-bit mode provided at bits pin#*2 and pin#*2+1 */ - gpio_port->mode_r &= ~(0x03 << pin * 2); - gpio_port->mode_r |= mode << pin * 2; -} - -gpio_output_pin_t set_gpio_pin_output( - __IO gpio_port_t* gpio_port, gpio_pin_t pin) -{ - set_gpio_pin_mode(gpio_port, pin, MODE_OUTPUT); - - return (gpio_output_pin_t){.gpio_port = gpio_port, .pin = pin}; -} - -void set_gpio_output_pin(gpio_output_pin_t pin, bool onoff) -{ - if (onoff) { - pin.gpio_port->output_r |= 1 << pin.pin; - } else { - pin.gpio_port->output_r &= ~(1 << pin.pin); - } -} - -#define GPIO_PORTS_BASE_ADDR ((uint32_t)0x48000000) -__IO gpio_port_t* enable_gpio(gpio_port_number_t gpio_port_number) -{ - RCC.ahb2en_r |= 1 << gpio_port_number; /* Enable the GPIO port. */ - return (__IO gpio_port_t*)(GPIO_PORTS_BASE_ADDR + (gpio_port_number * 0x400)); -} diff --git a/01-system-clock/src/isr_vector.c b/01-system-clock/src/isr_vector.c deleted file mode 100644 index 674a6bb..0000000 --- a/01-system-clock/src/isr_vector.c +++ /dev/null @@ -1,165 +0,0 @@ -#include "isr_vector.h" -#include "delay.h" -#include "gpio.h" - -/* Forward-declare the main function. This is implemented in main.c. */ -void main(); - -/* These are defined in the linker script. */ -extern uint32_t INIT_DATA_VALUES; -extern uint32_t DATA_SEGMENT_START; -extern uint32_t DATA_SEGMENT_STOP; -extern uint32_t BSS_START; -extern uint32_t BSS_END; - -/* - * Runs before main. Initializes the data and bss segments by loading them - * into memory. - */ -void init() -{ - uint32_t* src; - uint32_t* dest; - - src = &INIT_DATA_VALUES; - dest = &DATA_SEGMENT_START; - - /* Copy the values from flash into the data segment. */ - while (dest != &DATA_SEGMENT_STOP) { - *(dest++) = *(src++); - } - - /* Everything in the BSS segment is set to zero. */ - dest = &BSS_START; - while (dest != &BSS_END) { - *(dest++) = 0; - } - - /* Jump to main. */ - main(); -} - -const void* vectors[] __attribute__((section(".vectors"))) = { - (void*)0x2000c000, /* Top of stack at top of sram1. 48k */ - init, /* Reset handler */ - unhandled_isr, /* NMI */ - unhandled_isr, /* Hard Fault */ - unhandled_isr, /* MemManage */ - unhandled_isr, /* BusFault */ - unhandled_isr, /* UsageFault */ - unhandled_isr, /* Reserved */ - unhandled_isr, /* Reserved */ - unhandled_isr, /* Reserved */ - unhandled_isr, /* Reserved */ - unhandled_isr, /* SVCall */ - unhandled_isr, /* Debug */ - unhandled_isr, /* Reserved */ - unhandled_isr, /* PendSV */ - unhandled_isr, /* SysTick */ - - /* External interrupt handlers follow */ - unhandled_isr, /* 0 WWDG */ - unhandled_isr, /* 1 PVD */ - unhandled_isr, /* 2 TAMP_SAMP */ - unhandled_isr, /* 3 RTC_WKUP */ - unhandled_isr, /* 4 FLASH */ - unhandled_isr, /* 5 RCC */ - unhandled_isr, /* 6 EXTI0 */ - unhandled_isr, /* 7 EXTI1 */ - unhandled_isr, /* 8 EXTI2 */ - unhandled_isr, /* 9 EXTI3 */ - unhandled_isr, /* 10 EXTI4 */ - unhandled_isr, /* 11 DMA_CH1 */ - unhandled_isr, /* 12 DMA_CH2 */ - unhandled_isr, /* 13 DMA_CH3 */ - unhandled_isr, /* 14 DMA_CH4 */ - unhandled_isr, /* 15 DMA_CH5 */ - unhandled_isr, /* 16 DMA_CH6 */ - unhandled_isr, /* 17 DMA_CH7 */ - unhandled_isr, /* 18 ADC1 */ - unhandled_isr, /* 19 CAN_TX */ - unhandled_isr, /* 20 CAN_RX0 */ - unhandled_isr, /* 21 CAN_RX1 */ - unhandled_isr, /* 22 CAN_SCE */ - unhandled_isr, /* 23 EXTI9_5 */ - unhandled_isr, /* 24 TIM1_BRK/TIM15 */ - unhandled_isr, /* 25 TIM1_UP/TIM16 */ - unhandled_isr, /* 26 TIM1_TRG_COM */ - unhandled_isr, /* 27 TIM1_CC */ - unhandled_isr, /* 28 TIM2 */ - unhandled_isr, /* 29 Reserved */ - unhandled_isr, /* 30 Reserved */ - unhandled_isr, /* 31 I2C1_EV */ - unhandled_isr, /* 32 I2C1_ER */ - unhandled_isr, /* 33 I2C2_EV */ - unhandled_isr, /* 34 I2C2_ER */ - unhandled_isr, /* 35 SPI1 */ - unhandled_isr, /* 36 SPI2 */ - unhandled_isr, /* 37 USART1 */ - unhandled_isr, /* 38 USART2 */ - unhandled_isr, /* 39 USART3 */ - unhandled_isr, /* 40 EXTI15_10 */ - unhandled_isr, /* 41 RTCAlarm */ - unhandled_isr, /* 42 Reserved */ - unhandled_isr, /* 43 Reserved */ - unhandled_isr, /* 44 Reserved */ - unhandled_isr, /* 45 Reserved */ - unhandled_isr, /* 46 Reserved */ - unhandled_isr, /* 47 Reserved */ - unhandled_isr, /* 48 Reserved */ - unhandled_isr, /* 49 SDMMC1 */ - unhandled_isr, /* 50 Reserved */ - unhandled_isr, /* 51 SPI3 */ - unhandled_isr, /* 52 Reserved */ - unhandled_isr, /* 53 Reserved */ - unhandled_isr, /* 54 TIM6_DACUNDER */ - unhandled_isr, /* 55 TIM7 */ - unhandled_isr, /* 56 DMA2_CH1 */ - unhandled_isr, /* 57 DMA2_CH2 */ - unhandled_isr, /* 58 DMA2_CH3 */ - unhandled_isr, /* 59 DMA2_CH4 */ - unhandled_isr, /* 60 DMA2_CH5 */ - unhandled_isr, /* 61 Reserved */ - unhandled_isr, /* 62 Reserved */ - unhandled_isr, /* 63 Reserved*/ - unhandled_isr, /* 64 COMP */ - unhandled_isr, /* 65 LPTIM1 */ - unhandled_isr, /* 66 LPTIM2 */ - unhandled_isr, /* 67 USB_FS */ - unhandled_isr, /* 68 DMA_CH6 */ - unhandled_isr, /* 69 DMA_CH7 */ - unhandled_isr, /* 70 LPUART1 */ - unhandled_isr, /* 71 QUADSPI */ - unhandled_isr, /* 72 I2C3_EV */ - unhandled_isr, /* 73 I2C3_ER */ - unhandled_isr, /* 74 SAI1 */ - unhandled_isr, /* 75 Reserved */ - unhandled_isr, /* 76 SWPMI1 */ - unhandled_isr, /* 77 TSC */ - unhandled_isr, /* 78 Reserved */ - unhandled_isr, /* 79 AES */ - unhandled_isr, /* 80 RNG */ - unhandled_isr, /* 81 FPU */ - unhandled_isr /* 82 CRS */ -}; - -/* - * Does nothing ... forever. - */ -void unhandled_isr() -{ - __IO gpio_port_t* port_b = enable_gpio(GPIO_PORT_B); - gpio_output_pin_t pin3 = set_gpio_pin_output(port_b, PIN_3); - for (;;) { - /* Flash in a distinct pattern to know that something went wrong. */ - - pin_off(pin3); - delay(100000); - pin_on(pin3); - delay(100000); - pin_off(pin3); - delay(100000); - pin_on(pin3); - delay(500000); - } -} diff --git a/01-system-clock/src/main.c b/01-system-clock/src/main.c deleted file mode 100644 index 7912bf2..0000000 --- a/01-system-clock/src/main.c +++ /dev/null @@ -1,36 +0,0 @@ -#include "clock.h" -#include "delay.h" -#include "gpio.h" -#include "spin.h" - -volatile uint32_t delay_amt = 20000000 / 4; - -/* Main function. This gets executed from the interrupt vector defined above. */ -int main() -{ - /* Enable the GPIO port B. */ - - __IO gpio_port_t* port_b = enable_gpio(GPIO_PORT_B); - gpio_output_pin_t pin3 = set_gpio_pin_output(port_b, PIN_3); - gpio_output_pin_t pin1 = set_gpio_pin_output(port_b, PIN_1); - - /* Enable a higher clock frequency. */ - set_system_clock_MHz(80); - - uint32_t count = 0; - while (1) { - /* Set the GPIO pin to high. */ - pin_off(pin1); - pin_off(pin3); - delay(delay_amt); - - /* Set the GPIO pin to low. */ - if (count % 4 == 0) { - pin_on(pin1); - } - pin_on(pin3); - delay(delay_amt); - - ++count; - } -} diff --git a/01-system-clock/src/spin.c b/01-system-clock/src/spin.c deleted file mode 100644 index fbd16b6..0000000 --- a/01-system-clock/src/spin.c +++ /dev/null @@ -1,49 +0,0 @@ -#include "spin.h" -#include "delay.h" -#include "gpio.h" - -#define SHORT_DELAY 200000 -#define LONG_DELAY (SHORT_DELAY * 2) - -static void flash_bit( - uint32_t base, gpio_output_pin_t out_pin, - uint8_t bit /* 0 => 0, non-zero => 1 */) -{ - pin_on(out_pin); - if (bit) { - delay(base * 2); - } else { - delay(base); - } - pin_off(out_pin); - delay(base); -} - -void spin(uint32_t base, uint8_t c) -{ - uint8_t code; - __IO gpio_port_t* port_b = enable_gpio(GPIO_PORT_B); - gpio_output_pin_t pin3 = set_gpio_pin_output(port_b, PIN_3); - - for (;;) { - code = c; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - code <<= 1; - flash_bit(base, pin3, code & 0x80); - - delay(base * 4); - } -} diff --git a/01-system-clock/src/vector.c b/01-system-clock/src/vector.c deleted file mode 100644 index e69de29..0000000 diff --git a/02-usart/.gdbinit b/02-usart/.gdbinit deleted file mode 100644 index 87932b3..0000000 --- a/02-usart/.gdbinit +++ /dev/null @@ -1 +0,0 @@ -set follow-fork-mode child diff --git a/02-usart/.ycm_extra_conf.py b/02-usart/.ycm_extra_conf.py deleted file mode 100644 index 8203412..0000000 --- a/02-usart/.ycm_extra_conf.py +++ /dev/null @@ -1,21 +0,0 @@ -import os -import ycm_core - -flags = [ - '-Wall', - '-DFOR_TESTING', - '-Iinclude', - '-Iinclude/arch/arm', - '-Itest_harness/', - '-DARCH_STMT32L4', - '-DDRY_RUN', - # -Iinclude/arch/arm -Itest_harness/ -DARCH_STM32L4 -DDRY_RUN -Wall -DFOR_TESTINGk - ] - -SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', ] - -def FlagsForFile( filename, **kwargs ): - return { - 'flags': flags, - 'do_cache': True - } diff --git a/02-usart/Makefile.preamble b/02-usart/Makefile.preamble deleted file mode 100644 index f6e1370..0000000 --- a/02-usart/Makefile.preamble +++ /dev/null @@ -1,25 +0,0 @@ -OPT?=-O -PREFIX?=arm-unknown-eabi- -CC=$(PREFIX)gcc -LD=$(PREFIX)ld -CFLAGS?=$(OPT) -mcpu=cortex-m4 -mthumb -g -lgcc -static -nostartfiles -Iinclude -Iinclude/arch/arm -LD_FLAGS?=-T linker/linker_script.ld -nostdlib --cref -Map linker/main.map -static - -TEST_PREFIX=x86_64-pc-linux-gnu- -TEST_CFLAGS=-Iinclude -Iinclude/arch/x86_64 -Itest_harness -g3 -ggdb -DFOR_TESTING -Wall - -all: _$(PREFIX)_obs/main.elf - -_$(PREFIX)_obs/main.bin: _$(PREFIX)_obs/main.elf - $(PREFIX)objcopy -O binary _$(PREFIX)_obs/main.elf _$(PREFIX)_obs/main.bin - -flash: _$(PREFIX)_obs/main.bin - st-flash write _$(PREFIX)_obs/main.bin 0x8000000 - -clean: - rm -rf _*_obs - rm -rf tests/build - rm -rf test_harness/*.a test_harness/*.o - -genmake: - ./genmake.pl > Makefile diff --git a/02-usart/genmake.pl b/02-usart/genmake.pl deleted file mode 100755 index c4165a6..0000000 --- a/02-usart/genmake.pl +++ /dev/null @@ -1,128 +0,0 @@ -#!/usr/bin/perl - -use File::Basename; -use File::Find; -use Digest::SHA qw(sha1_hex); - -# This script is designed to introspect C files and generate a makefile to use. - -sub header_deps { - my $file = @_[0]; - my @headers; - - if (open(my $fh, '<:encoding(UTF-8)', $file)) { - print STDERR "\x1b[35m[Trace] - Reading file $file\x1b[00m\n"; - push(@headers, $file); - - while (<$fh>) { - /#include\s+"(.*)"\s*$/ && push(@headers, header_deps("include/$1")); - } - } - - return @headers; -} - -my @files; -find(sub { - push @files, "$File::Find::name" if $_ =~ /.*\.c/ - }, "src/"); - -my @test_files; -find(sub { - push @test_files, "$File::Find::name" if $_ =~ /.*\.c/ - }, "tests/"); - -my @header_files; -find(sub { - push @header_files, "$File::Find::name" if $_ =~ /.*\.h/; - }, "include/" ); - -my $idempotency_hash=sha1_hex("@files @test_files @header_files"); - -if ("$ARGV[0]" eq "hash") { - print "$idempotency_hash\n"; - exit 0 -} - -my @obj_files; - -open(my $fh, '<:encoding(UTF-8)', "Makefile.preamble") - or die "Missing Makefile.preamble"; - -while (<$fh>) { - print "$_"; -} - -# Emit a rule that will rerun genmake if the c files do not match. -my $idempotency_cmd_make = - "/usr/bin/perl ./genmake.pl hash"; - -print "IDEMPOTENCY_HASH=$idempotency_hash\n"; - -my $arch_obs_dir = "_\$(PREFIX)_obs"; -print "CHEAT_PRE_MAKE := \$(shell mkdir -p $arch_obs_dir)\n"; - -foreach $file (@files) { - my $c_file = $file; - (my $file_no_ext = $file) =~ s/src\/(.*)\.c$/\1/g; - - my $obj_file = "$arch_obs_dir/${file_no_ext}.o"; - my $s_file = "${file_no_ext}.s"; - - push(@obj_files, $obj_file); - my @deps = header_deps($c_file); - - my $deps_as_join = join(" ", @deps); -