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| author | Josh Rahm <joshuarahm@gmail.com> | 2020-11-16 18:20:32 -0700 |
|---|---|---|
| committer | Josh Rahm <joshuarahm@gmail.com> | 2020-11-16 18:20:32 -0700 |
| commit | 9f17335c19a6ae91a450e267b5313148644a7a14 (patch) | |
| tree | f1ae946ada62148913a8cc10bc985f8de926a4a0 /02-usart/src/main.c | |
| parent | 4767c73fb2e1f96469fe24a83b443c1774b01d86 (diff) | |
| download | stm32l4-9f17335c19a6ae91a450e267b5313148644a7a14.tar.gz stm32l4-9f17335c19a6ae91a450e267b5313148644a7a14.tar.bz2 stm32l4-9f17335c19a6ae91a450e267b5313148644a7a14.zip | |
Add DMA header file which defines the DMA registers and add
testing_harness with fake environment to allow testing on x86
development machines.
Diffstat (limited to '02-usart/src/main.c')
| -rw-r--r-- | 02-usart/src/main.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/02-usart/src/main.c b/02-usart/src/main.c index 5af52ed..862676c 100644 --- a/02-usart/src/main.c +++ b/02-usart/src/main.c @@ -1,4 +1,5 @@ +#include "arch.h" #include "clock.h" #include "delay.h" #include "gpio.h" @@ -70,7 +71,7 @@ int enable_usart1(uint32_t baud_rate) /* Enable the transmitter and the receiver. */ usart_set_enabled(&USART1, USART_ENABLE_TX); - asm volatile(" cpsie i "); + enable_interrupts(); } /* Main function. This gets executed from the interrupt vector defined above. */ @@ -88,6 +89,6 @@ int main() enable_usart2(115200); pin_on(pin3); - usart_transmit_str(&USART2, "Hello, World\n"); + usart_transmit_str_sync(&USART2, "Hello, World\n"); for(;;); } |