bstanwell/ch32v20x-examples
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update 1.8

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qiyongshuang
2023-09-06 10:08:11 +08:00
parent b79c6ac80d
commit 64be955461
760 changed files with 42517 additions and 30957 deletions
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EVT/EXAM/TIM/Clock_Select/User/main.c
+13 -13
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@@ -4,20 +4,20 @@
* Version : V1.0.0
* Date : 2021/06/06
* Description : Main program body.
*********************************************************************************
* 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.
*******************************************************************************/
*********************************************************************************
* 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.
*******************************************************************************/
/*
*@Note
Clock source selection routine:
This example demonstrates two external clock source modes of TIM1.
External clock source mode 1: PA8 is used as clock input pin,
External clock source mode 2: PA12 is used as clock input pin.
*/
*Clock source selection routine:
*This example demonstrates two external clock source modes of TIM1.
*External clock source mode 1: PA8 is used as clock input pin,
*External clock source mode 2: PA12 is used as clock input pin.
*
*/
#include "debug.h"
@@ -42,7 +42,6 @@ void TIM1_ETRClockMode1_Init(void)
TIM_CounterModeConfig(TIM1, TIM_CounterMode_Up);
TIM_SetAutoreload(TIM1, 0x3EB);
TIM_ETRClockMode1Config(TIM1, TIM_ExtTRGPSC_OFF, TIM_ExtTRGPolarity_Inverted, 0x0);
/* GPIOA8 Input as TIM Clock Source */
TIM_TIxExternalClockConfig(TIM1, TIM_TIxExternalCLK1Source_TI1, TIM_ICPolarity_Rising, 0x00);
TIM_Cmd(TIM1, ENABLE);
@@ -63,7 +62,6 @@ void TIM1_ETRClockMode2_Init(void)
TIM_SetAutoreload(TIM1, 0x3EB);
/* GPIOA12 Input as TIM Clock Source */
TIM_ETRClockMode2Config(TIM1, TIM_ExtTRGPSC_OFF, TIM_ExtTRGPolarity_Inverted, 0x0);
TIM_SelectInputTrigger(TIM1, TIM_TS_ETRF);
TIM_Cmd(TIM1, ENABLE);
}
/*********************************************************************
@@ -75,8 +73,10 @@ void TIM1_ETRClockMode2_Init(void)
*/
int main(void)
{
SystemCoreClockUpdate();
USART_Printf_Init(115200);
printf("SystemClk:%d\r\n", SystemCoreClock);
printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
#if(ETR_CLK == ETR_CLK_MODE1)
TIM1_ETRClockMode1_Init();