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.

1 files changed, 43 insertions, 0 deletions

diff --git a/include/arch/arm/arch.h b/include/arch/arm/arch.h
new file mode 100644
index 0000000..22d0987
--- /dev/null
+++ b/include/arch/arm/arch.h
@@ -0,0 +1,43 @@
+#ifndef ARCH_H_
+#define ARCH_H_
+
+#ifndef ARCH_STM32L4
+#define ARCH_STM32L4
+#endif
+
+#define CORTEX_M4
+
+#define enable_all_interrupts() \
+  asm volatile(" cpsie i ")
+
+
+#define DMA1_BASE (0x40020000)
+#define DMA2_BASE (0x40020400)
+
+#define USART1_BASE (0x40013800)
+#define USART2_BASE (0x40004400)
+
+#define GPIOA_BASE (0x48000000)
+#define GPIOB_BASE (0x48000400)
+#define GPIOC_BASE (0x48000800)
+#define GPIOH_BASE (0x48001C00)
+
+#define SRAM1_BASE (0x20000000)
+#define SRAM2_BASE (0x2000C000)
+
+#define SYSTEM_CONFIG_BLOCK_BASE (0xE000E008)
+#define NVIC_BASE (0xE000E004)
+#define RCC_BASE (0x40021000)
+
+#define SPI1_BASE (0x40013000)
+#define SPI3_BASE (0x40003C00)
+
+#include <stdint.h>
+#ifndef DRY_RUN
+_Static_assert(sizeof(void*) == sizeof(uint32_t), "Pointers must be 32 bits");
+#endif
+
+extern uint32_t DATA_SEGMENT_START;
+extern uint32_t DATA_SEGMENT_STOP;
+
+#endif /* ARCH_H_ */