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               : 2021/08/08
+* 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
+  This routine demonstrates the use of the USBD to emulate a custom device(CH372 like device),
+  with endpoints 1/3 downlinking data and uploading it via endpoints 2/4/6 respectively
+  where endpoint 1/2 is implemented via a ring buffer and data is not inverted,and endpoints
+  3/4  is directly copied and inverted for upload
+  The device can be operated using Bushund or other upper computer software.
+*/
+
+#include "debug.h"
+#include "usb_lib.h"
+#include "usb_desc.h"
+#include "hw_config.h"
+#include "usb_pwr.h"
+#include "usb_prop.h"
+
+/* Global define */
+
+
+/* Global Variable */    
+
+/*********************************************************************
+ * @fn      Var_Init
+ *
+ * @brief   Software parameter initialization
+ *
+ * @return  none
+ */
+void Var_Init(void)
+{
+    uint16_t i;
+    RingBuffer_Comm.LoadPtr = 0;
+    RingBuffer_Comm.StopFlag = 0;
+    RingBuffer_Comm.DealPtr = 0;
+    RingBuffer_Comm.RemainPack = 0;
+    for(i=0; i<DEF_Ring_Buffer_Max_Blks; i++)
+    {
+        RingBuffer_Comm.PackLen[i] = 0;
+    }
+}
+
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{   
+    uint8_t ret;
+    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
+    Delay_Init();
+    USART_Printf_Init(115200);
+    printf("SystemClk:%d\r\n",SystemCoreClock);
+    printf("USBD CH372 Device Demo\r\n");
+
+    Set_USBConfig();
+    USB_Init();
+    USB_Interrupts_Config();
+    
+    while(1)
+    {
+        if( bDeviceState == CONFIGURED )
+        {
+            /* Data Transfer */
+            if(RingBuffer_Comm.RemainPack)
+            {
+                ret = USBD_ENDPx_DataUp(ENDP2, &EP1_Data_Buffer[(RingBuffer_Comm.DealPtr) * DEF_USBD_MAX_PACK_SIZE], RingBuffer_Comm.PackLen[RingBuffer_Comm.DealPtr]);
+                if(ret == USB_SUCCESS)
+                {
+                    NVIC_DisableIRQ(USB_LP_CAN1_RX0_IRQn);
+                    RingBuffer_Comm.RemainPack--;
+                    NVIC_EnableIRQ(USB_LP_CAN1_RX0_IRQn);
+                    RingBuffer_Comm.DealPtr++;
+                    if(RingBuffer_Comm.DealPtr == DEF_Ring_Buffer_Max_Blks)
+                    {
+                        RingBuffer_Comm.DealPtr = 0;
+                    }
+                }
+            }
+
+            /* Monitor whether the remaining space is available for further downloads */
+            if(RingBuffer_Comm.RemainPack < (DEF_Ring_Buffer_Max_Blks - DEF_RING_BUFFER_RESTART))
+            {
+                if(RingBuffer_Comm.StopFlag)
+                {
+                    printf("USB ring buffer full, stop receiving further data.\n");
+                    RingBuffer_Comm.StopFlag = 0;
+                    SetEPRxValid(ENDP1);
+                }
+            }
+        }
+    }
+}
+
+
+
+
+
+
+