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 +1,107 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : main.c
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2022/08/20
+ * 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 USBFS to emulate a custom CH372 device, 
+  with endpoints 1/3/5 downloading data and uploading it via endpoints 2/4/6 respectively
+  where endpoint 1/2 is implemented via a ring buffer and the data is not inverted, 
+  and endpoints 3/4 and 5/6 are directly copied and inverted for upload.
+  The device can be operated using Bushund or other upper computer software.
+  Note: This routine needs to be demonstrated in conjunction with the host software.
+*/
+
+#include "ch32v20x_usbfs_device.h"
+#include "debug.h"
+
+/*********************************************************************
+ * @fn      Var_Init
+ *
+ * @brief   Software parameter initialisation
+ *
+ * @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;
+	Delay_Init();
+	USART_Printf_Init( 115200 );
+	printf("SystemClk:%d\r\n",SystemCoreClock);
+
+    /* USBOTG_FS device init */
+	printf("CH372Device Running On USBOTG_FS Controller\r\n");
+	Delay_Ms( 10 );
+
+    /* Variables init */
+    Var_Init( );
+
+    /* Usb Init */
+    USBFS_RCC_Init( );
+    USBFS_Device_Init( ENABLE );
+    NVIC_EnableIRQ(USBHD_IRQn);
+
+	while(1)
+	{
+        /* Determine if enumeration is complete, perform data transfer if completed */
+        if(USBFS_DevEnumStatus)
+        {
+            /* Data Transfer */
+            if(RingBuffer_Comm.RemainPack)
+            {
+                ret = USBFS_Endp_DataUp(DEF_UEP2, &Data_Buffer[(RingBuffer_Comm.DealPtr) * DEF_USBD_FS_PACK_SIZE], RingBuffer_Comm.PackLen[RingBuffer_Comm.DealPtr], DEF_UEP_CPY_LOAD);
+                if( ret == 0 )
+                {
+                    NVIC_DisableIRQ(USBHD_IRQn);
+                    RingBuffer_Comm.RemainPack--;
+                    RingBuffer_Comm.DealPtr++;
+                    if(RingBuffer_Comm.DealPtr == DEF_Ring_Buffer_Max_Blks)
+                    {
+                        RingBuffer_Comm.DealPtr = 0;
+                    }
+                    NVIC_EnableIRQ(USBHD_IRQn);
+                }
+            }
+
+            /* 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)
+                {
+                    NVIC_DisableIRQ(USBHD_IRQn);
+                    RingBuffer_Comm.StopFlag = 0;
+                    NVIC_EnableIRQ(USBHD_IRQn);
+                    USBOTG_FS->UEP1_RX_CTRL = (USBOTG_FS->UEP1_RX_CTRL & ~USBFS_UEP_R_RES_MASK) | USBFS_UEP_R_RES_ACK;
+                }
+            }
+        }
+	}
+}