Posted on May 12, 2016 at 08:07
Here i have shared my code. I enable RTc Using RTC_Initialize function. One more Query that If i use NVIC priority for USART1 and USART6 then why its not working? I want to say that if i Use IRQ handler for both USARTS 1 and 6 , then its not showing USART6 received data to USART1. If i disable the USART1 IRQ handler then it will show the USART6 received data to USART1 .
Here is stm32f4xx_it.c file i use.
#include ''stm32f4xx_it.h''
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void
NMI_Handler(
void
)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void
HardFault_Handler(
void
)
{
/* Go to infinite loop when Hard Fault exception occurs */
while
(1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void
MemManage_Handler(
void
)
{
/* Go to infinite loop when Memory Manage exception occurs */
while
(1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void
BusFault_Handler(
void
)
{
/* Go to infinite loop when Bus Fault exception occurs */
while
(1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void
UsageFault_Handler(
void
)
{
/* Go to infinite loop when Usage Fault exception occurs */
while
(1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void
SVC_Handler(
void
)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void
DebugMon_Handler(
void
)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void
PendSV_Handler(
void
)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
__IO uint32_t TimmingDelay;
void
SysTick_Handler(
void
)
{
if
(TimmingDelay !=0)
{
TimmingDelay --;
}
}
/******************************************************************************/
/* STM32Fxxx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32fxxx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @brief This function handles EXTI0_IRQ Handler.
* @param None
* @retval None
*/
int
cnt1, cnt2, cnt_neww ;
extern
int
PWM_period, hh, decrem,cnt_nmbr,Nmbr_turns,Sampling,macro, limites,steps,test;
void
TIM2_IRQHandler(
void
)
{
}
void
TIM3_IRQHandler(
void
)
{
}
void
TIM4_IRQHandler(
void
)
{
}
void
TIM1_CC_IRQHandler(
void
)
{
}
/*
#define max_wordlen1 18000
extern void Delay(__IO uint32_t nCount);
volatile char received_str1[max_wordlen1+1];
volatile char ascii_of_char1[1024];
extern void USART_puts(USART_TypeDef *USARTx, volatile char *str);
//volatile char a[20][100];
void USART1_IRQHandler(){
while (USART_GetITStatus(USART1, USART_IT_RXNE)) {
static int cnt1=0;
char ch1;
ch1= USART_ReceiveData(USART1);
received_str1[cnt1] = ch1;
USART_SendData(USART1, received_str1[cnt1]);
cnt1=cnt1+1;
if(received_str1[cnt1] == '
')
{
cnt1=0;
}
USART_ClearITPendingBit(USART1, USART_IT_RXNE);
}
}
*/
extern
int
e;
#define max_wordlen6 18000
extern
void
Delay(__IO uint32_t nCount);
volatile
char
received_str6[max_wordlen6+1];
volatile
char
ascii_of_char6[1024];
volatile
char
p[1024];
extern
void
USART_puts(USART_TypeDef *USARTx, volatile
char
*str);
volatile
char
a[20][100];
void
USART6_IRQHandler(){
while
(USART_GetITStatus(USART6, USART_IT_RXNE)){
static
int
cnt6=0;
static
int
m=0;
char
ch6;
ch6= USART_ReceiveData(USART6);
USART_SendData(USART1, ch6);
/*//received_str6[cnt6] = ch6;
//memset( p, '\0', sizeof(p) );
//if((e>=9)){
//p[m]= received_str6[cnt6];
//USART_SendData(USART1, received_str6[cnt6]);*/
cnt6=cnt6+1;
//m=m+1;
if
(received_str6[cnt6] ==
'
'
) {
//strcpy(ascii_of_char6,p);
cnt6=0;
//m=0;
}
//}
}
}
/**
* @brief This function handles EXTI15_10_IRQ Handler.
* @param None
* @retval None
*/
/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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