#include "main.h" #include "CH392_PARAM.H" void SerialInit(void); // ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] int main(void) { uint32_t i = 0; SystemInit(); SerialInit(); InitNet(); GPIO_Init(GPIOD, PIN9, 1, 0, 0, 0); //GPIOA.5配置为输出引脚,推挽输出 GPIO_INIT(GPIOM, PIN2, GPIO_OUTPUT); //同上,另一种可读性更好的写法 while(1) { // if((++i%500)==1) // { // GPIO_InvBit(GPIOD, PIN9); // GPIO_InvBit(GPIOM, PIN2); // printf("Hi, World! %d\r\n",i); // } // for(i = 0; i < SystemCoreClock/8; i++) __NOP(); //DelayMs(1); NetRouting(); } } void SerialInit(void) { UART_InitStructure UART_initStruct; PORT_Init(PORTC, PIN2, PORTC_PIN2_UART3_RX, 1); //GPIOC.2配置为UART3输入引脚 PORT_Init(PORTC, PIN3, PORTC_PIN3_UART3_TX, 0); //GPIOC.3配置为UART3输出引脚 UART_initStruct.Baudrate = 115200; UART_initStruct.DataBits = UART_DATA_8BIT; UART_initStruct.Parity = UART_PARITY_NONE; UART_initStruct.StopBits = UART_STOP_1BIT; UART_initStruct.RXThreshold = 3; UART_initStruct.RXThresholdIEn = 0; UART_initStruct.TXThreshold = 3; UART_initStruct.TXThresholdIEn = 0; UART_initStruct.TimeoutTime = 10; UART_initStruct.TimeoutIEn = 0; UART_Init(UART3, &UART_initStruct); UART_Open(UART3); } /****************************************************************************************************************************************** * 函数名称: fputc() * 功能说明: printf()使用此函数完成实际的串口打印动作 * 输 入: int ch 要打印的字符 * FILE *f 文件句柄 * 输 出: 无 * 注意事项: 无 ******************************************************************************************************************************************/ int fputc(int ch, FILE *f) { UART_WriteByte(UART3, ch); while(UART_IsTXBusy(UART3)); return ch; }