mirror of
https://github.com/IcedRooibos/py32f0-template.git
synced 2025-10-29 00:42:06 -07:00
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
#include "main.h"
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#include "py32f0xx_bsp_led.h"
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#include "py32f0xx_bsp_printf.h"
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static void APP_SystemClockConfig(void);
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static void APP_GPIOConfig(void);
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int main(void)
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{
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APP_SystemClockConfig();
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APP_GPIOConfig();
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BSP_USART_Config(115200);
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LL_RCC_ConfigMCO(LL_RCC_MCO1SOURCE_SYSCLK, LL_RCC_MCO1_DIV_1);
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printf("Clock: %ld \r\n", SystemCoreClock);
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while (1)
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{
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LL_GPIO_TogglePin(GPIOB, LL_GPIO_PIN_5);
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printf("echo\r\n");
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LL_mDelay(500);
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}
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}
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static void APP_SystemClockConfig(void)
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{
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LL_RCC_HSI_Enable();
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LL_RCC_HSI_SetCalibFreq(LL_RCC_HSICALIBRATION_24MHz);
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while(LL_RCC_HSI_IsReady() != 1);
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LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
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LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSISYS);
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while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSISYS);
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LL_FLASH_SetLatency(LL_FLASH_LATENCY_0);
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LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
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/* Update global SystemCoreClock(or through SystemCoreClockUpdate function) */
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LL_SetSystemCoreClock(24000000);
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/* Re-init frequency of SysTick source */
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LL_InitTick(24000000, 1000U);
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}
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static void APP_GPIOConfig(void)
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{
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LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);
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LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOB);
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LL_GPIO_SetPinMode(GPIOB, LL_GPIO_PIN_5, LL_GPIO_MODE_OUTPUT);
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/* PA08: MCO output */
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// Add USE_FULL_LL_DRIVER to LIB_FLAGS to enable LL_GPIO_InitTypeDef
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LL_GPIO_InitTypeDef GPIO_InitStruct;
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GPIO_InitStruct.Pin = LL_GPIO_PIN_8;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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/* Alternate mode */
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GPIO_InitStruct.Alternate = LL_GPIO_AF5_MCO;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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/* No pull */
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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}
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void APP_ErrorHandler(void)
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{
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while (1);
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}
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#ifdef USE_FULL_ASSERT
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void assert_failed(uint8_t *file, uint32_t line)
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{
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while (1);
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}
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#endif /* USE_FULL_ASSERT */
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