CH32X03x/Debug/debug.c
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/********************************** (C) COPYRIGHT *******************************
* File Name : debug.c
* Author : WCH
* Version : V1.0.0
* Date : 2023/04/06
* Description : This file contains all the functions prototypes for UART
* Printf , Delay functions.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#include "debug.h"
static uint8_t p_us = 0;
static uint16_t p_ms = 0;
#define DEBUG_DATA0_ADDRESS ((volatile uint32_t*)0xE0000380)
#define DEBUG_DATA1_ADDRESS ((volatile uint32_t*)0xE0000384)
/*********************************************************************
* @fn Delay_Init
*
* @brief Initializes Delay Funcation.
*
* @return none
*/
void Delay_Init(void)
{
p_us = SystemCoreClock / 8000000;
p_ms = (uint16_t)p_us * 1000;
}
/*********************************************************************
* @fn Delay_Us
*
* @brief Microsecond Delay Time.
*
* @param n - Microsecond number.
*
* @return None
*/
void Delay_Us(uint32_t n)
{
uint32_t i;
SysTick->SR &= ~(1 << 0);
i = (uint32_t)n * p_us;
SysTick->CMP = i;
SysTick->CTLR |= (1 << 4);
SysTick->CTLR |= (1 << 5) | (1 << 0);
while((SysTick->SR & (1 << 0)) != (1 << 0));
SysTick->CTLR &= ~(1 << 0);
}
/*********************************************************************
* @fn Delay_Ms
*
* @brief Millisecond Delay Time.
*
* @param n - Millisecond number.
*
* @return None
*/
void Delay_Ms(uint32_t n)
{
uint32_t i;
SysTick->SR &= ~(1 << 0);
i = (uint32_t)n * p_ms;
SysTick->CMP = i;
SysTick->CTLR |= (1 << 4);
SysTick->CTLR |= (1 << 5) | (1 << 0);
while((SysTick->SR & (1 << 0)) != (1 << 0));
SysTick->CTLR &= ~(1 << 0);
}
/*********************************************************************
* @fn USART_Printf_Init
*
* @brief Initializes the USARTx peripheral.
*
* @param baudrate - USART communication baud rate.
*
* @return None
*/
void USART_Printf_Init(uint32_t baudrate)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
#if(DEBUG == DEBUG_UART1)
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
#elif(DEBUG == DEBUG_UART2)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
#elif(DEBUG == DEBUG_UART3)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
#endif
USART_InitStructure.USART_BaudRate = baudrate;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx;
#if(DEBUG == DEBUG_UART1)
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
#elif(DEBUG == DEBUG_UART2)
USART_Init(USART2, &USART_InitStructure);
USART_Cmd(USART2, ENABLE);
#elif(DEBUG == DEBUG_UART3)
USART_Init(USART3, &USART_InitStructure);
USART_Cmd(USART3, ENABLE);
#endif
}
/*********************************************************************
* @fn SDI_Printf_Enable
*
* @brief Initializes the SDI printf Function.
*
* @param None
*
* @return None
*/
void SDI_Printf_Enable(void)
{
*(DEBUG_DATA0_ADDRESS) = 0;
Delay_Init();
Delay_Ms(1);
}
/*********************************************************************
* @fn _write
*
* @brief Support Printf Function
*
* @param *buf - UART send Data.
* size - Data length
*
* @return size - Data length
*/
__attribute__((used))
int _write(int fd, char *buf, int size)
{
int i = 0;
#if (SDI_PRINT == SDI_PR_OPEN)
int writeSize = size;
do
{
/**
* data0 data1 <20><>8<EFBFBD><38><EFBFBD>ֽ<EFBFBD>
* data0<61><30><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD>ֽڴ<D6BD><DAB4>ų<EFBFBD><C5B3>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD><EFBFBD>Ϊ 7
*
*/
while( (*(DEBUG_DATA0_ADDRESS) != 0u))
{
}
if(writeSize>7)
{
*(DEBUG_DATA1_ADDRESS) = (*(buf+i+3)) | (*(buf+i+4)<<8) | (*(buf+i+5)<<16) | (*(buf+i+6)<<24);
*(DEBUG_DATA0_ADDRESS) = (7u) | (*(buf+i)<<8) | (*(buf+i+1)<<16) | (*(buf+i+2)<<24);
i += 7;
writeSize -= 7;
}
else
{
*(DEBUG_DATA1_ADDRESS) = (*(buf+i+3)) | (*(buf+i+4)<<8) | (*(buf+i+5)<<16) | (*(buf+i+6)<<24);
*(DEBUG_DATA0_ADDRESS) = (writeSize) | (*(buf+i)<<8) | (*(buf+i+1)<<16) | (*(buf+i+2)<<24);
writeSize = 0;
}
} while (writeSize);
#else
for(i = 0; i < size; i++){
#if(DEBUG == DEBUG_UART1)
while(USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
USART_SendData(USART1, *buf++);
#elif(DEBUG == DEBUG_UART2)
while(USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET);
USART_SendData(USART2, *buf++);
#elif(DEBUG == DEBUG_UART3)
while(USART_GetFlagStatus(USART3, USART_FLAG_TC) == RESET);
USART_SendData(USART3, *buf++);
#endif
}
#endif
return size;
}
/*********************************************************************
* @fn _sbrk
*
* @brief Change the spatial position of data segment.
*
* @return size - Data length
*/
__attribute__((used))
void *_sbrk(ptrdiff_t incr)
{
extern char _end[];
extern char _heap_end[];
static char *curbrk = _end;
if ((curbrk + incr < _end) || (curbrk + incr > _heap_end))
return NULL - 1;
curbrk += incr;
return curbrk - incr;
}