[CubeMX] 基础工程配置

基础外设配置

1. Debug Wire
   SYS - Debug - Serial Wire

2. 外置高/低速晶振
   RCC - HSE - Crystal/Ceramic Resonator
   RCC - LSE - Crystal/Ceramic Resonator

3. LED
   PA5 - OutPut

4. USART2
   Asynchronous

5. HCLK
   170Mhz

串口重定向

于 uart.c 中添加

#include <stdio.h>

#ifdef __GNUC__
int _write(int fd, char *ptr, int len)  
{  
  HAL_UART_Transmit(&huart1, (uint8_t*)ptr, len, 0xFFFF);
  return len;
}
#endif

滴答定时器中断回调

于 stm32g4xx_it.c 添加

void SysTick_Handler(void)
{
  /* USER CODE BEGIN SysTick_IRQn 0 */

  /* USER CODE END SysTick_IRQn 0 */
  HAL_IncTick();
  /* USER CODE BEGIN SysTick_IRQn 1 */
  HAL_SYSTICK_IRQHandler();
  /* USER CODE END SysTick_IRQn 1 */
}

void HAL_SYSTICK_Callback() {

}

openocd stlink 配置

# choose st-link/j-link/dap-link etc.
#adapter driver cmsis-dap
#transport select swd
source [find interface/stlink-v2-1.cfg]
transport select hla_swd
source [find target/stm32g4x.cfg]
# download speed = 10MHz
adapter speed 10000