mirror of
https://gitee.com/Lyon1998/pikapython.git
synced 2025-01-15 17:02:53 +08:00
150 lines
3.3 KiB
C
150 lines
3.3 KiB
C
/********************************** (C) COPYRIGHT *******************************
|
||
* File Name : CH58x_uart0.c
|
||
* Author : WCH
|
||
* Version : V1.2
|
||
* Date : 2021/11/17
|
||
* Description
|
||
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
|
||
* SPDX-License-Identifier: Apache-2.0
|
||
*******************************************************************************/
|
||
|
||
#include "CH58x_common.h"
|
||
|
||
/*********************************************************************
|
||
* @fn UART0_DefInit
|
||
*
|
||
* @brief <20><><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
*
|
||
* @param none
|
||
*
|
||
* @return none
|
||
*/
|
||
void UART0_DefInit(void)
|
||
{
|
||
UART0_BaudRateCfg(115200);
|
||
R8_UART0_FCR = (2 << 6) | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN; // FIFO<46><EFBFBD><F2BFAAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4<EFBFBD>ֽ<EFBFBD>
|
||
R8_UART0_LCR = RB_LCR_WORD_SZ;
|
||
R8_UART0_IER = RB_IER_TXD_EN;
|
||
R8_UART0_DIV = 1;
|
||
}
|
||
|
||
/*********************************************************************
|
||
* @fn UART0_BaudRateCfg
|
||
*
|
||
* @brief <20><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
*
|
||
* @param baudrate - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
*
|
||
* @return none
|
||
*/
|
||
void UART0_BaudRateCfg(uint32_t baudrate)
|
||
{
|
||
uint32_t x;
|
||
|
||
x = 10 * GetSysClock() / 8 / baudrate;
|
||
x = (x + 5) / 10;
|
||
R16_UART0_DL = (uint16_t)x;
|
||
}
|
||
|
||
/*********************************************************************
|
||
* @fn UART0_ByteTrigCfg
|
||
*
|
||
* @brief <20><><EFBFBD><EFBFBD><EFBFBD>ֽڴ<D6BD><DAB4><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>
|
||
*
|
||
* @param b - <20><><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD> refer to UARTByteTRIGTypeDef
|
||
*
|
||
* @return none
|
||
*/
|
||
void UART0_ByteTrigCfg(UARTByteTRIGTypeDef b)
|
||
{
|
||
R8_UART0_FCR = (R8_UART0_FCR & ~RB_FCR_FIFO_TRIG) | (b << 6);
|
||
}
|
||
|
||
/*********************************************************************
|
||
* @fn UART0_INTCfg
|
||
*
|
||
* @brief <20><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>
|
||
*
|
||
* @param s - <20>жϿ<D0B6><CFBF><EFBFBD>״̬<D7B4><CCAC><EFBFBD>Ƿ<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>Ӧ<EFBFBD>ж<EFBFBD>
|
||
* @param i - <20>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>
|
||
* RB_IER_MODEM_CHG - <20><><EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4>仯<EFBFBD>ж<EFBFBD>ʹ<EFBFBD><CAB9>λ<EFBFBD><CEBB><EFBFBD><EFBFBD> UART0 ֧<>֣<EFBFBD>
|
||
* RB_IER_LINE_STAT - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·״̬<D7B4>ж<EFBFBD>
|
||
* RB_IER_THR_EMPTY - <20><><EFBFBD>ͱ<EFBFBD><CDB1>ּĴ<D6BC><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
|
||
* RB_IER_RECV_RDY - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
|
||
*
|
||
* @return none
|
||
*/
|
||
void UART0_INTCfg(FunctionalState s, uint8_t i)
|
||
{
|
||
if(s)
|
||
{
|
||
R8_UART0_IER |= i;
|
||
R8_UART0_MCR |= RB_MCR_INT_OE;
|
||
}
|
||
else
|
||
{
|
||
R8_UART0_IER &= ~i;
|
||
}
|
||
}
|
||
|
||
/*********************************************************************
|
||
* @fn UART0_Reset
|
||
*
|
||
* @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ
|
||
*
|
||
* @param none
|
||
*
|
||
* @return none
|
||
*/
|
||
void UART0_Reset(void)
|
||
{
|
||
R8_UART0_IER = RB_IER_RESET;
|
||
}
|
||
|
||
/*********************************************************************
|
||
* @fn UART0_SendString
|
||
*
|
||
* @brief <20><><EFBFBD>ڶ<EFBFBD><DAB6>ֽڷ<D6BD><DAB7><EFBFBD>
|
||
*
|
||
* @param buf - <20><><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
|
||
* @param l - <20><><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>
|
||
*
|
||
* @return none
|
||
*/
|
||
void UART0_SendString(uint8_t *buf, uint16_t l)
|
||
{
|
||
uint16_t len = l;
|
||
|
||
while(len)
|
||
{
|
||
if(R8_UART0_TFC != UART_FIFO_SIZE)
|
||
{
|
||
R8_UART0_THR = *buf++;
|
||
len--;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*********************************************************************
|
||
* @fn UART0_RecvString
|
||
*
|
||
* @brief <20><><EFBFBD>ڶ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ֽ<EFBFBD>
|
||
*
|
||
* @param buf - <20><>ȡ<EFBFBD><C8A1><EFBFBD>ݴ<EFBFBD><DDB4>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
|
||
*
|
||
* @return <20><>ȡ<EFBFBD><C8A1><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>
|
||
*/
|
||
uint16_t UART0_RecvString(uint8_t *buf)
|
||
{
|
||
uint16_t len = 0;
|
||
|
||
while(R8_UART0_RFC)
|
||
{
|
||
*buf++ = R8_UART0_RBR;
|
||
len++;
|
||
}
|
||
|
||
return (len);
|
||
}
|
||
|