177 lines
3.8 KiB
C
177 lines
3.8 KiB
C
#include "debug.h"
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//
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// Created by KS00596 on 2022/7/12.
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//
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/**********************************************************
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行注释
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内容：HAL 接口层
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**********************************************************/
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static void SerialInit(void)
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{
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UART_InitStructure UART_initStruct;
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PORT_Init(PORTC, PIN2, FUNMUX0_UART0_RXD, 1); // GPIOA.2配置为UART0输入引脚
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PORT_Init(PORTC, PIN3, FUNMUX1_UART0_TXD, 0); // GPIOA.3配置为UART0输出引脚
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UART_initStruct.Baudrate = 115200;
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UART_initStruct.DataBits = UART_DATA_8BIT;
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UART_initStruct.Parity = UART_PARITY_NONE;
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UART_initStruct.StopBits = UART_STOP_1BIT;
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UART_initStruct.RXThreshold = 3;
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UART_initStruct.RXThresholdIEn = 1;
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UART_initStruct.TXThreshold = 3;
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UART_initStruct.TXThresholdIEn = 0;
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UART_initStruct.TimeoutTime = 10; //10个字符时间内未接收到新的数据则触发超时中断
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UART_initStruct.TimeoutIEn = 1;
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UART_Init(UART0, &UART_initStruct);
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UART_Open(UART0);
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}
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static void putChar(char ch)
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{
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UART_WriteByte(UART0, (u32)ch);
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while (UART_IsTXBusy(UART0));
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}
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void DebugInit(void){
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SerialInit();
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}
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/***
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* 自己写的printf函数
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* 函数定义void Printf(const char *format, ...)
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* 目前支持%d,%c,%s,%f
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* */
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/**
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* @brief uart输出单个字符-interface
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*
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* @param c 输出字符
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*/
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void PutChar(char c)
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{
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// extern void putChar(char c);
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putChar(c);
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}
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void printch(const char ch) //输出字符
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{
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PutChar(ch);
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}
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void printint(const int dec) //输出整型数
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{
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if (dec == 0)
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{
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return;
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}
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printint(dec / 10);
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PutChar((char)(dec % 10 + '0'));
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}
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void printstr(const char *ptr) //输出字符串
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{
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while (*ptr)
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{
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PutChar(*ptr);
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ptr++;
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}
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}
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static void printBit(const int dec)
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{
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if (dec == 0)
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{
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return;
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}
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printBit(dec / 2);
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PutChar((char)(dec % 2 + '0'));
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}
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void printfloat(const float flt) //输出浮点数，小数点第5位四舍五入
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{
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int tmpint = (int)flt;
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int tmpflt = (int)(100000 * (flt - tmpint));
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if (tmpflt % 10 >= 5)
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{
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tmpflt = tmpflt / 10 + 1;
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}
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else
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{
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tmpflt = tmpflt / 10;
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}
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printint(tmpint);
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PutChar('.');
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printint(tmpflt);
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}
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void Printf(const char *format, ...)
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{
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va_list ap;
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va_start(ap, format); //将ap指向第一个实际参数的地址
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while (*format != '\0')
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{
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if (*format != '%')
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{
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PutChar(*format);
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format++;
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}
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else
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{
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format++;
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switch (*format)
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{
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case 'c':
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{
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char valch = va_arg(ap, int); //记录当前实践参数所在地址
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printch(valch);
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format++;
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break;
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}
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case 'd':
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{
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int valint = va_arg(ap, int);
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if (valint)
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printint(valint);
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else
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{
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PutChar('0');
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}
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format++;
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break;
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}
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case 's':
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{
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char *valstr = va_arg(ap, char *);
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printstr(valstr);
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format++;
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break;
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}
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case 'f':
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{
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float valflt = va_arg(ap, double);
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printfloat(valflt);
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format++;
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break;
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}
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case 'b':
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{
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int valint = va_arg(ap, int);
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if (valint)
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printBit(valint);
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else
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{
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PutChar('0');
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}
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format++;
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break;
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}
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default:
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{
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printch(*format);
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format++;
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}
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}
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}
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}
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va_end(ap);
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} |