#include "mcu_init.h" static void led_config(void) { rcu_periph_clock_enable(LED_GPIO_CLK); /* configure LED GPIO port */ gpio_init(LED_GPIO_PORT, GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, LED_PIN); /* reset LED GPIO pin */ gpio_bit_set(LED_GPIO_PORT, LED_PIN); } void board_init() { char *str = "Tencent"; SystemInit(); led_config(); usart0_init(115200); usart1_init(115200); usart2_init(115200); OLED_Init(); OLED_Clear(); OLED_ShowChinese(36,0,0); OLED_ShowChinese(54,0,1); OLED_ShowChinese(72,0,2); OLED_ShowString(36,2,(uint8_t*)str,8); }