?? main.c
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/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name : main.c
* Author : MCD Application Team
* Version : V4.0
* Date : 10/09/2007
* Description : Main program body
********************************************************************************
THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "71x_lib.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define T3_OCMP_A 0x04
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : main
* Description : main routine
* Input : None.
* Return : None.
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
/* Enable TIM3, GPIO0 and GPIO1 clocks on APB2 */
APB_ClockConfig (APB2, ENABLE, TIM3_Periph GPIO0_Periph | GPIO1_Periph);
/* GPIO configuration ------------------------------------------------------*/
/* Timer 3 Output Compare function pin (P1.2) configured as Alternate
function pushpull */
GPIO_Config (GPIO1, T3_OCMP_A, GPIO_AF_PP);
/* GPIO port configured as output push pull */
GPIO_Config (GPIO0, 0xFFFF, GPIO_OUT_PP);
/* Initialise the GPIO0 port to low level */
GPIO_WordWrite(GPIO0, 0x0000);
/* EIC configuration -------------------------------------------------------*/
/* Enable the IRQ0 for timer 3 */
EIC_IRQChannelConfig(T3TIMI_IRQChannel, ENABLE );
EIC_IRQChannelPriorityConfig(T3TIMI_IRQChannel, 1);
EIC_IRQConfig(ENABLE);
/* TIM3 configuration ------------------------------------------------------*/
/* Initialize the Timer 3 registers to reset values */
TIM_Init (TIM3);
/* Configure the TIM Prescaler */
TIM_PrescalerConfig (TIM3, 0x7F);
/* Enable the Output Compare for the TIM3 peripheral */
TIM_ITConfig (TIM3, TIM_OCA_IT, ENABLE);
/* Configure the TIM3 Output Compare Function */
TIM_OCMPModeConfig (TIM3, TIM_CHANNEL_A, 0xA000, TIM_WAVE, TIM_HIGH);
/* | | | | |
TIM 3 <--+ | | | +--> Toggle To
| | | High Level
TIM 3 Output compare | | |
channelA <--+ | +--> OCMP function used for
| external wave generation.
Delay before toggling <-----------------+ */
/* GPIO0 Forced To high Level */
GPIO_WordWrite(GPIO0, 0xFFFF);
/* Infinite loop */
while (1)
{
/* Infinite loop */
}
}
/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/
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