diff options
Diffstat (limited to 'stm32/main.c')
| -rw-r--r-- | stm32/main.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/stm32/main.c b/stm32/main.c index 14b2a41..fa0ef66 100644 --- a/stm32/main.c +++ b/stm32/main.c @@ -1,5 +1,6 @@ #include <stm32f0xx_hal.h> #include <stm32f0xx_hal_uart.h> +#include <stm32f0xx.h> void error_handler() { __disable_irq(); @@ -38,6 +39,8 @@ void HAL_UART_MspInit(UART_HandleTypeDef *huart) { }); } +const uint32_t* BIG_DATA_PTR = (uint32_t*) 0x0803F800; + void setup() { if (HAL_UART_Init(&huart2) != HAL_OK) return error_handler(); @@ -46,8 +49,13 @@ void setup() { int main() { setup(); - const char test_data[] = "hello world!\r\n"; - HAL_UART_Transmit(&huart2, (uint8_t*) test_data, sizeof(test_data), 100); + HAL_UART_Transmit(&huart2, (uint8_t*) "[", 1, 100); + for (unsigned int i = 0; i < 4; i++) { + uint32_t word = BIG_DATA_PTR[i]; + uint8_t* bytes = (uint8_t*) &word; + HAL_UART_Transmit(&huart2, bytes, 4, 100); + } + HAL_UART_Transmit(&huart2, (uint8_t*) "]", 1, 100); while(1); } |