first submission

2023-02-01 14:19:13 +08:00
parent d534aad004
commit b79c6ac80d
3711 changed files with 745432 additions and 2 deletions
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+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : main.c
+ * Author             : WCH
+ * 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.
+*******************************************************************************/
+
+/*
+ *@Note
+ slave mode routine:
+ TIM1_CH1(PA8)
+ This example demonstrates that when the TIM_CH1(PA8) pin detects a rising edge, TIM1 works
+ differently in different slave modes.
+ RESET_MODE: TIM1->CNT reset and recount
+ GATED_MODE: PA8 pin input low level, TIM1->CNT counts normally, otherwise stop counting.
+ TRIGGER__MODE: TIM1->CNT continues counting.
+ 
+*/
+
+#include "debug.h"
+
+/* Slave Mode Definition */
+#define RESET_MODE      0
+#define GATED_MODE      1
+#define TRIGGER__MODE   2
+
+/*  Slave Mode Selection */
+//#define SLAVE_MODE   RESET_MODE
+//#define SLAVE_MODE   GATED_MODE
+#define SLAVE_MODE   TRIGGER__MODE
+
+/*********************************************************************
+ * @fn      TIM1_Synchro_ExtTrigger_Init
+ *
+ * @brief   Initializes TIM1 external trigger synchronization.
+ *
+ * @param   arr - the period value.
+ *          psc - the prescaler value.
+ *
+ * @return  none
+ */
+void TIM1_Synchro_ExtTrigger_Init(u16 arr, u16 psc)
+{
+	GPIO_InitTypeDef GPIO_InitStructure={0};
+	TIM_ICInitTypeDef TIM_ICInitStructure={0};
+	TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure={0};
+
+	RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA | RCC_APB2Periph_TIM1, ENABLE );
+
+	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
+	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
+	GPIO_Init( GPIOA, &GPIO_InitStructure);
+	GPIO_ResetBits( GPIOA, GPIO_Pin_8 );
+
+	TIM_TimeBaseInitStructure.TIM_Period = arr;
+	TIM_TimeBaseInitStructure.TIM_Prescaler = psc;
+	TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
+	TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
+	TIM_TimeBaseInitStructure.TIM_RepetitionCounter =  0x00;
+	TIM_TimeBaseInit( TIM1, &TIM_TimeBaseInitStructure);
+
+	TIM_ICInitStructure.TIM_Channel = TIM_Channel_1;
+	TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
+	TIM_ICInitStructure.TIM_ICFilter = 0x00;
+	TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising;
+	TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
+	TIM_ICInit( TIM1, &TIM_ICInitStructure );
+
+	TIM_SelectInputTrigger( TIM1, TIM_TS_TI1FP1 );
+
+#if (SLAVE_MODE == RESET_MODE)
+	TIM_SelectSlaveMode( TIM1, TIM_SlaveMode_Reset );
+
+#elif (SLAVE_MODE == GATED_MODE)
+	TIM_SelectSlaveMode( TIM1, TIM_SlaveMode_Gated );
+
+#elif (SLAVE_MODE == TRIGGER__MODE)
+	TIM_SelectMasterSlaveMode( TIM1, TIM_SlaveMode_Trigger );
+
+#endif
+
+	TIM_SelectMasterSlaveMode( TIM1, TIM_MasterSlaveMode_Enable );
+
+#if (SLAVE_MODE != TRIGGER__MODE)
+	TIM_Cmd( TIM1, ENABLE );
+
+#endif
+}
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+	USART_Printf_Init(115200);
+	printf("SystemClk:%d\r\n",SystemCoreClock);
+
+	TIM1_Synchro_ExtTrigger_Init( 0xFFFF, 48000-1);
+
+	while(1)
+	{
+		printf("cnt:%d\r\n", TIM1->CNT);
+	}
+}
+