97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : main.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2020/04/30
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* Description : Main program body.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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/*
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* @Note
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* Composite Keyboard and Mouse Example:
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* This example uses PB12-PB15 and PA4-PA7 to simulate keyboard key pressing and mouse
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* movement respectively, active low.
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* At the same time, it also uses USART2(PA3) to receive the specified data sent from
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* the host to simulate the pressing and releasing of the following specific keyboard
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* keys. Data is sent in hexadecimal format and 1 byte at a time.
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* 'W' -> 0x1A
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* 'A' -> 0x04
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* 'S' -> 0x16
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* 'D' -> 0x07
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*/
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/*
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* @Note
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* In addition, when the system frequency is selected as the USB clock source, only 144MHz/96MHz/48MHz
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* are supported.
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*/
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/*******************************************************************************/
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/* Header Files */
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#include "ch32v20x_usbfs_device.h"
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#include "usbd_composite_km.h"
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/*********************************************************************
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* @fn main
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*
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* @brief Main program
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*
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* @return none
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*/
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int main( void )
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{
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/* Initialize system configuration */
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NVIC_PriorityGroupConfig( NVIC_PriorityGroup_2 );
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Delay_Init( );
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USART_Printf_Init( 115200 );
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printf( "SystemClk:%d\r\n", SystemCoreClock );
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/* Initialize USART2 for receiving the specified keyboard data */
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USART2_Init( 115200 );
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printf( "USART2 Init OK!\r\n" );
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/* Initialize GPIO for keyboard scan */
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KB_Scan_Init( );
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KB_Sleep_Wakeup_Cfg( );
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printf( "KB Scan Init OK!\r\n" );
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/* Initialize GPIO for mouse scan */
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MS_Scan_Init( );
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MS_Sleep_Wakeup_Cfg( );
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printf( "MS Scan Init OK!\r\n" );
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/* Initialize timer for Keyboard and mouse scan timing */
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TIM3_Init( 1, SystemCoreClock / 10000 - 1 );
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printf( "TIM3 Init OK!\r\n" );
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/* Initialize USBHD interface to communicate with the host */
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USBFS_RCC_Init( );
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USBFS_Device_Init( ENABLE );
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USB_Sleep_Wakeup_CFG( );
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printf("USBHD Composite KM Device Test\r\n");
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while( 1 )
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{
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if( USBFS_DevEnumStatus )
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{
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/* Handle keyboard scan data */
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KB_Scan_Handle( );
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/* Handle keyboard lighting */
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KB_LED_Handle( );
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/* Handle mouse scan data */
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MS_Scan_Handle( );
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/* Handle USART2 receiving data */
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USART2_Receive_Handle( );
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}
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}
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}
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