86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
/**
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* @file main.c
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* @author Myth
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* @version 0.3
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* @date 2021.10.12
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* @brief 工程主函数文件
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* @details 初始化及主循环
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* @note 此版本实现功能：
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* 串口回显，回显时 PC13 上的 LED 闪烁
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* 软件 I2C
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* JTAG 已禁用，请使用 SWD 调试
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*/
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#include "sys.h"
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#include "systick.h"
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#include "uart.h"
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#include "softi2c.h"
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#include "led.h"
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void Echo(uint8_t byte);
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int main(void)
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{
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if (HAL_Init() != HAL_OK) //初始化 HAL 库
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{
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Error_Handler(__FILE__, __LINE__); //错误处理
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}
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SystemClock_Config(); //初始化系统时钟为 72MHz
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DisableJTAG(); //禁用 JTAG
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SysTick_Init(); //初始化 SysTick 和软件定时器
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UART_Init(); //初始化串口
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LED_Init(); //初始化 LED
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UART_BindReceiveHandle(COM1, Echo); //绑定 COM1 串口接收中断至 Echo 函数
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SoftI2C_TypeDef SoftI2C;
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SoftI2C.SDA_GPIO = GPIOB;
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SoftI2C.SDA_Pin = GPIO_PIN_3;
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SoftI2C.SCL_GPIO = GPIOB;
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SoftI2C.SCL_Pin = GPIO_PIN_4;
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SoftI2C.Delay_Time = 10;
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if (SoftI2C_Init(&SoftI2C) != HAL_OK) //初始化软件 I2C
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{
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Error_Handler(__FILE__, __LINE__); //错误处理
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}
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while (1)
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{
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//程序主循环
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SoftI2C_Start(&SoftI2C);
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SoftI2C_WriteByte(&SoftI2C, 0x10);
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SoftI2C_WaitAck(&SoftI2C);
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SoftI2C_WriteByte(&SoftI2C, 0x22);
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SoftI2C_WaitAck(&SoftI2C);
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SoftI2C_WriteByte(&SoftI2C, 0x33);
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SoftI2C_WaitAck(&SoftI2C);
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SoftI2C_WriteByte(&SoftI2C, 0x44);
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SoftI2C_WaitAck(&SoftI2C);
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SoftI2C_Stop(&SoftI2C);
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Delay_us(1000);
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}
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return 1;
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}
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/**
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* @brief 串口回显函数
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* @param byte: 本次中断接收到的字节
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*/
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void Echo(uint8_t byte)
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{
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LED1_Slow_Toggle;
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UART_SendChar(COM1, byte);
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}
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