From d306a7ea5348c16c14b826228ad05ac100e69e5b Mon Sep 17 00:00:00 2001
From: Logan G <logan@qtechofficial.com>
Date: Sat, 25 Nov 2023 23:48:12 -0700
Subject: [PATCH] Updated example program to be less useless

---
 User/main.c | 82 +++++++++++++++++------------------------------------
 1 file changed, 26 insertions(+), 56 deletions(-)

diff --git a/User/main.c b/User/main.c
index 02f4380..92d4dcb 100644
--- a/User/main.c
+++ b/User/main.c
@@ -7,19 +7,6 @@
  * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
  * SPDX-License-Identifier: Apache-2.0
  *******************************************************************************/
-
-/*
- *@Note
- 轮询收发模式例程：
- Master：USART1_Tx(PD5)、USART1_Rx(PD6)。
- 本例程演示 USART1 收到CH341发送的数据取反发出（波特率 115200）。
-
- 注：
-     硬件连线：PD5 —— Rx
-           PD6 —— Tx
-
-*/
-
 #include "debug.h"
 
 
@@ -27,40 +14,23 @@
 
 
 /* Global Variable */
-vu8 val;
+
 
 /*********************************************************************
- * @fn      USARTx_CFG
+ * @fn      GPIO_Toggle_INIT
  *
- * @brief   Initializes the USART2 & USART3 peripheral.
+ * @brief   Initializes GPIOD.4
  *
  * @return  none
  */
-void USARTx_CFG(void)
-{
-    GPIO_InitTypeDef  GPIO_InitStructure = {0};
-    USART_InitTypeDef USART_InitStructure = {0};
+void GPIO_LED_Init(void) {
+    GPIO_InitTypeDef GPIO_InitStructure = {0};
 
-    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_USART1, ENABLE);
-
-    /* USART1 TX-->D.5   RX-->D.6 */
-    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
-    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
+    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
+    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
+    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
     GPIO_Init(GPIOD, &GPIO_InitStructure);
-    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
-    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
-    GPIO_Init(GPIOD, &GPIO_InitStructure);
-
-    USART_InitStructure.USART_BaudRate = 115200;
-    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
-    USART_InitStructure.USART_StopBits = USART_StopBits_1;
-    USART_InitStructure.USART_Parity = USART_Parity_No;
-    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
-    USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
-
-    USART_Init(USART1, &USART_InitStructure);
-    USART_Cmd(USART1, ENABLE);
 }
 
 /*********************************************************************
@@ -70,27 +40,27 @@ void USARTx_CFG(void)
  *
  * @return  none
  */
-int main(void)
-{
+int main(void) {
     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
+    SystemCoreClockUpdate();
     Delay_Init();
+#if (SDI_PRINT == SDI_PR_OPEN)
+    SDI_Printf_Enable();
+#else
     USART_Printf_Init(115200);
-    printf("SystemClk:%d\r\n",SystemCoreClock);
+#endif
+    printf("SystemClk: %ld\r\n", SystemCoreClock);
+    printf("DeviceID: %08x\r\n", DBGMCU_GetDEVID());
+    printf("ChipID: %08x\r\n", DBGMCU_GetCHIPID());
 
-    USARTx_CFG();
+    GPIO_LED_Init();
 
-    while(1)
-    {
-
-        while(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET)
-        {
-            /* waiting for receiving finish */
-        }
-        val = (USART_ReceiveData(USART1));
-        USART_SendData(USART1, ~val);
-        while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET)
-        {
-            /* waiting for sending finish */
-        }
+    while(1) {
+        Delay_Ms(1000);
+        printf("On\r\n");
+        GPIO_WriteBit(GPIOD, GPIO_Pin_4, Bit_SET);
+        Delay_Ms(1000);
+        printf("Off\r\n");
+        GPIO_WriteBit(GPIOD, GPIO_Pin_4, Bit_RESET);
     }
 }