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 +1,130 @@
+/********************************** (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
+    when LV is enabled in standby mode, RAM 2k and 30K low-power data holding routines:
+    This routine demonstrates writing data at the specified location of 2K RAM and 30K RAM,
+    then WFI enters STANDBY sleep mode and turns on LV,Input high level through PA0 (wakeup) pin
+    to exit standby mode, print RAM data after waking up, and test whether RAM holds data.
+*/
+
+#include "debug.h"
+
+/* Global define */
+
+/* Global Variable */
+
+/*********************************************************************
+ * @fn      TestDataWrite
+ *
+ * @brief   Write 0x11111111 to certain address of 2K RAM and 30K RAM.
+ *
+ * @return  none
+ */
+void TestDataWrite(void)
+{
+    uint32_t myAddr = 0x20000000 + 10 * 1024;
+    uint32_t myAddr2 = 0x20000000 + 1 * 1024 + 512;
+    uint32_t i = 0;
+    for(i = 0; i < 1024; i++) //Write 30K RAM
+    {
+        *(uint32_t volatile *)(myAddr + (i << 2)) = 0x44444444;
+    }
+    for(i = 0; i < 1024; i++) //Check 30K RAM
+    {
+        if((*(uint32_t volatile *)(myAddr + (i << 2))) != 0x44444444)
+        {
+            printf("Write 30K RAM Error!\r\n");
+            break;
+        }
+    }
+    printf("Write 30K RAM Successfully!\r\n");
+    for(i = 0; i < 10; i++) //Write 2K RAM
+    {
+        *(uint32_t volatile *)(myAddr2 + (i << 2)) = 0x44444444;
+    }
+    for(i = 0; i < 10; i++) //Check 30K RAM
+    {
+        if((*(uint32_t volatile *)(myAddr2 + (i << 2))) != 0x44444444)
+        {
+            printf("Write 2K RAM Error!\r\n");
+            break;
+        }
+    }
+    printf("Write 2K RAM Successfully!\r\n");
+}
+
+/*********************************************************************
+ * @fn      TestDataRead
+ *
+ * @brief   Print the data of certain address of 2K RAM and 30K RAM.
+ *
+ * @return  none
+ */
+void TestDataRead(void)
+{
+    uint32_t myAddr = 0x20000000 + 10 * 1024;
+    uint32_t myAddr2 = 0x20000000 + 1 * 1024 + 512;
+    uint32_t i = 0;
+    printf("2K RAM:\r\n");
+    for(i = 0; i < 10; i++){
+        printf("0x%08lx=0x%08lx\r\n", myAddr2 + (i << 2), *(uint32_t volatile *)(myAddr2 + (i << 2)));
+    }
+    printf("32K RAM:\r\n");
+    for(i = 0; i < 1024; i++){
+        printf("0x%08lx=0x%08lx\r\n", myAddr + (i << 2), *(uint32_t volatile *)(myAddr + (i << 2)));
+    }
+}
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+    GPIO_InitTypeDef GPIO_InitStructure = {0};
+
+    /* 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_2);
+    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);
+    while(1)
+    {
+        TestDataRead();
+        printf("4.Standby Mode RAM LV Test\r\n");
+        TestDataWrite();
+        PWR_WakeUpPinCmd(ENABLE);
+        PWR_EnterSTANDBYMode_RAM_LV();
+        printf("\r\n4.Out \r\n");
+        printf("\r\n ########## \r\n");
+    }
+}