/********************************** (C) COPYRIGHT ******************************* * File Name : UART.H * Author : WCH * Version : V1.01 * Date : 2022/12/13 * Description : UART communication-related headers ******************************************************************************* * 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. *******************************************************************************/ #ifndef __UART_H__ #define __UART_H__ #ifdef __cplusplus extern "C" { #endif #include "stdio.h" #include "string.h" #include "debug.h" #include "string.h" #include "PRINTF.h" #include "ch32v20x_usbfs_device.h" #include "ch32v20x_conf.h" /******************************************************************************/ /* Related macro definitions */ /* Serial buffer related definitions */ #define DEF_UARTx_RX_BUF_LEN ( 4 * 512 ) /* Serial x receive buffer size */ #define DEF_UARTx_TX_BUF_LEN ( 2 * 512 ) /* Serial x transmit buffer size */ #define DEF_USB_FS_PACK_LEN DEF_USBD_FS_PACK_SIZE /* USB full speed mode packet size for serial x data */ #define DEF_UARTx_TX_BUF_NUM_MAX ( DEF_UARTx_TX_BUF_LEN / DEF_USB_FS_PACK_LEN ) /* Serial x transmit buffer size */ /* Serial port receive timeout related macro definition */ #define DEF_UARTx_BAUDRATE 115200 /* Default baud rate for serial port */ #define DEF_UARTx_STOPBIT 0 /* Default stop bit for serial port */ #define DEF_UARTx_PARITY 0 /* Default parity bit for serial port */ #define DEF_UARTx_DATABIT 8 /* Default data bit for serial port */ #define DEF_UARTx_RX_TIMEOUT 30 /* Serial port receive timeout, in 100uS */ #define DEF_UARTx_USB_UP_TIMEOUT 60000 /* Serial port receive upload timeout, in 100uS */ /* Serial port transceiver DMA channel related macro definition */ #define DEF_UART2_TX_DMA_CH DMA1_Channel7 /* Serial 2 transmit channel DMA channel */ #define DEF_UART2_RX_DMA_CH DMA1_Channel6 /* Serial 1 transmit channel DMA channel */ /************************************************************/ /* Serial port X related structure definition */ typedef struct __attribute__((packed)) _UART_CTL { uint16_t Rx_LoadPtr; /* Serial x data receive buffer load pointer */ uint16_t Rx_DealPtr; /* Pointer to serial x data receive buffer processing */ volatile uint16_t Rx_RemainLen; /* Remaining unprocessed length of the serial x data receive buffer */ uint8_t Rx_TimeOut; /* Serial x data receive timeout */ uint8_t Rx_TimeOutMax; /* Serial x data receive timeout maximum */ volatile uint16_t Tx_LoadNum; /* Serial x data send buffer load number */ volatile uint16_t Tx_DealNum; /* Serial x data send buffer processing number */ volatile uint16_t Tx_RemainNum; /* Serial x data send buffer remaining unprocessed number */ volatile uint16_t Tx_PackLen[ DEF_UARTx_TX_BUF_NUM_MAX ]; /* The current packet length of the serial x data send buffer */ uint8_t Tx_Flag; /* Serial x data send status */ uint8_t Recv1; uint16_t Tx_CurPackLen; /* The current packet length sent by serial port x */ uint16_t Tx_CurPackPtr; /* Pointer to the packet currently being sent by serial port x */ uint8_t USB_Up_IngFlag; /* Serial xUSB packet being uploaded flag */ uint8_t Recv2; uint16_t USB_Up_TimeOut; /* Serial xUSB packet upload timeout timer */ uint8_t USB_Up_Pack0_Flag; /* Serial xUSB data needs to upload 0-length packet flag */ uint8_t USB_Down_StopFlag; /* Serial xUSB packet stop down flag */ uint8_t Com_Cfg[ 8 ]; /* Serial x parameter configuration (default baud rate is 115200, 1 stop bit, no parity, 8 data bits) */ uint8_t Recv3; uint8_t USB_Int_UpFlag; /* Serial x interrupt upload status */ uint16_t USB_Int_UpTimeCount; /* Serial x interrupt upload timing */ }UART_CTL, *PUART_CTL; /***********************************************************************************************************************/ /* Constant, variable extents */ /* The following are serial port transmit and receive related variables and buffers */ extern volatile UART_CTL Uart; /* Serial x control related structure */ extern volatile uint32_t UARTx_Rx_DMACurCount; /* Serial x receive DMA current count */ extern volatile uint32_t UARTx_Rx_DMALastCount; /* last count of DMA received by serial x */ extern __attribute__ ((aligned(4))) uint8_t UART2_Tx_Buf[ DEF_UARTx_TX_BUF_LEN ]; /* Serial x transmit buffer */ extern __attribute__ ((aligned(4))) uint8_t UART2_Rx_Buf[ DEF_UARTx_RX_BUF_LEN ]; /* Serial x transmit buffer */ /***********************************************************************************************************************/ /* Function extensibility */ extern uint8_t RCC_Configuration( void ); extern void TIM2_Init( void ); extern void UART2_CfgInit( uint32_t baudrate, uint8_t stopbits, uint8_t parity ); /* UART1 initialization */ extern void UART2_ParaInit( uint8_t mode ); /* Serial port parameter initialization */ extern void UART2_DMAInit( uint8_t type, uint8_t *pbuf, uint32_t len ); /* Serial port 1-related DMA initialization */ extern void UART2_Init( uint8_t mode, uint32_t baudrate, uint8_t stopbits, uint8_t parity ); /* Serial port 1 initialization */ extern void UART2_DataTx_Deal( void ); /* Serial port 1 data sending processing */ extern void UART2_DataRx_Deal( void ); /* Serial port 1 data reception processing */ extern void UART2_USB_Init( void ); /* USB serial port initialization*/ #ifdef __cplusplus } #endif #endif /***********************************************************************************************************************/