V2.2

2024-11-11 14:32:11 +08:00
parent c4c38f507e
commit 961943f623
452 changed files with 9316 additions and 862 deletions
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+/********************************** (C) COPYRIGHT *******************************
+* File Name          : main.c
+* Author             : WCH
+* Version            : V1.0.0
+* Date               : 2024/07/09
+* 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
+ * In STANDBY mode, 2K bytes RAM and 30K bytes RAM data holding routines:
+ * Address range of  2K bytes RAM data holding: 0x20000000 ¡ª 0x20000000+2K .
+ * Address range of 30K bytes RAM data holding: 0x20000000+2K ¡ª 0x20000000+2K+30K .
+ * This example demonstrates the RAM data holding in standby mode (chip VDD power supply or VBAT power
+ * supply,and RAM work at different voltages). Write data to 2K RAM and 30K RAM respectively, then
+ * execute WFI to enter STANDBY mode, exit STANDBY mode by inputting a high level to the PA0 (wake-up)
+ * pin, print RAM data after waking up, and test whether RAM retains data. This routine supports
+ * CH32V20x_D8-CH32V203RB CH32V20x_D8W-CH32V208x,If you have requirements for other products,you need
+ * to modify the Link.ld file.
+ */
+
+#include "debug.h"
+
+
+#define KEEP_2kRAM   __attribute__((section(".keep_2kram"))) //Address space for  2K bytes of RAM.
+#define KEEP_30kRAM  __attribute__((section(".keep_30kram"))) //Address space for 30K bytes of RAM.
+
+/* Power supply mode definition */
+#define  VDD_POWER_MODE  0
+#define  VBAT_POWER_MODE 1
+
+#define  POWER_MODE  VDD_POWER_MODE
+
+/* RAM low voltage working mode definition */
+#define  RAMLV 0
+
+
+/* Global Variable */
+KEEP_2kRAM   u32 DataBuf0[256];
+KEEP_30kRAM  u32 DataBuf1[1024];
+
+
+/*********************************************************************
+ * @fn      TestDataWrite
+ *
+ * @brief   Write data in 2K RAM and 30K RAM.
+ *
+ * @return  none
+ */
+void TestDataWrite(void)
+{
+    uint32_t i=0;
+    /* Write data in 2K RAM */
+    for( i=0; i<256; i++ )
+    {
+       DataBuf0[i] = 0x22222222;
+    }
+    printf("Write data in 2K RAM Successfully!\r\n");
+    /* Write data in 30K RAM */
+    for( i=0; i<1024; i++ )
+    {
+        DataBuf1[i] = 0x33333333;
+    }
+    printf("Write data in 30K RAM Successfully!\r\n");
+}
+
+/*********************************************************************
+ * @fn      TestDataRead
+ *
+ * @brief   Read data written in 2K RAM and 30K RAM.
+ *
+ * @return  none
+ */
+void TestDataRead(void)
+{
+    uint32_t i=0;
+    printf("Read data in 2K RAM:\r\n");
+    for( i=0; i<256; i++ )
+    {
+        printf("DataBuf0#%d = 0x%08lx\r\n",i,DataBuf0[i]);
+    }
+    printf("Read data in 30K RAM:\r\n");
+    for( i=0; i<1024; i++ )
+    {
+        printf("DataBuf1#%d = 0x%08lx\r\n",i,DataBuf1[i]);
+    }
+
+}
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+    GPIO_InitTypeDef GPIO_InitStructure={0};
+    SystemCoreClockUpdate();
+
+    /* Configure unused GPIO as IPD to reduce power consumption */
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC |
+                           RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE, ENABLE);
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
+
+    GPIO_Init(GPIOA, &GPIO_InitStructure);
+    GPIO_Init(GPIOB, &GPIO_InitStructure);
+    GPIO_Init(GPIOC, &GPIO_InitStructure);
+    GPIO_Init(GPIOD, &GPIO_InitStructure);
+    GPIO_Init(GPIOE, &GPIO_InitStructure);
+
+    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
+    Delay_Init();
+    USART_Printf_Init(115200);
+    RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
+    /* Delay 1.5s to avoid entering low power mode immediately after reset*/
+    Delay_Ms(1500);
+
+    TestDataRead();
+    TestDataWrite();
+    PWR_WakeUpPinCmd(ENABLE);
+#if(POWER_MODE == VDD_POWER_MODE)
+    #if RAMLV
+        printf("\r\n***Start RAM_LV Data Hold Test \r\n");
+        PWR_EnterSTANDBYMode_RAM_LV();
+    #else
+        printf("\r\n***Start RAM Data Hold Test \r\n");
+        PWR_EnterSTANDBYMode_RAM();
+    #endif
+#elif(POWER_MODE == VBAT_POWER_MODE)
+    #if RAMLV
+        printf("\r\n***Start VBAT_EN RAM_LV Data Hold Test \r\n");
+        PWR_EnterSTANDBYMode_RAM_LV_VBAT_EN();
+    #else
+        printf("\r\n***Start VBAT_EN RAM Data Hold Test \r\n");
+        PWR_EnterSTANDBYMode_RAM_VBAT_EN();
+    #endif
+#endif
+    while(1);
+}
+