first submission

2023-02-01 14:19:13 +08:00
parent d534aad004
commit b79c6ac80d
3711 changed files with 745432 additions and 2 deletions
@@ -0,0 +1,92 @@
+/********************************** (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
+  VTF IRQ interrupt routine:
+  This example is used to demonstrate VTF IRQ
+*/
+#include "debug.h"
+
+/* Global define */
+
+
+/* Global Variable */ 
+uint32_t time=0;
+
+void SysTick_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+
+/*********************************************************************
+ * @fn      Interrupt_VTF_Init
+ *
+ * @brief   Initializes VTF.
+ *
+ * @return  none
+ */
+void Interrupt_VTF_Init(void)
+{
+    NVIC_EnableIRQ(SysTicK_IRQn);
+    SetVTFIRQ((u32)SysTick_Handler,SysTicK_IRQn,0,ENABLE);
+}
+
+/*********************************************************************
+ * @fn      Systick_Init
+ *
+ * @brief   Initializes Systick.
+ *
+ * @return  none
+ */
+void Systick_Init(void)
+{
+    SysTick->SR=0;
+    SysTick->CNT=0;
+    SysTick->CMP=0x20;
+    SysTick->CTLR=0x7;
+}
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+	USART_Printf_Init(115200);
+	printf("SystemClk:%d\r\n",SystemCoreClock);
+	printf("Interrupt VTF Test\r\n");
+
+	Interrupt_VTF_Init();
+	Systick_Init();
+    while(1)
+   {
+
+   }
+}
+
+/*********************************************************************
+ * @fn      SysTick_Handler
+ *
+ * @brief   This function handles SysTick exception.
+ *
+ * @return  none
+ */
+void SysTick_Handler(void)
+{
+    time=SysTick->CNT;
+    SysTick->CTLR=0;
+    SysTick->SR=0;
+    printf("delta time:%d\r\n",time-0x20);
+}
+
+