mirror of
https://github.com/armink/FreeModbus_Slave-Master-RTT-STM32.git
synced 2024-09-01 08:09:25 +08:00
a5528950d0
2、【修改】FreeModbus的port文件夹下相关文件的命名方式，从机保留FreeModbus原有的文件，主机则在文件名后面增加“_m”以区分，尽量保证FreeModbus源码的统一性； 3、【增加】FreeModbus主机初始化、使能、失能及定时器状态机相关方法，定时器超时状态机还需要后期完善，发送状态机及接收状态机还未实现； Signed-off-by: armink <armink.ztl@gmail.com>
191 lines
6.1 KiB
C
191 lines
6.1 KiB
C
/*
|
||
* FreeModbus Libary: STM32 Port
|
||
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Lesser General Public
|
||
* License as published by the Free Software Foundation; either
|
||
* version 2.1 of the License, or (at your option) any later version.
|
||
*
|
||
* This library is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser General Public
|
||
* License along with this library; if not, write to the Free Software
|
||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
*
|
||
* File: $Id: portserial.c,v 1.60 2013/08/13 15:07:05 Armink add Master Functions$
|
||
*/
|
||
|
||
#include "port.h"
|
||
|
||
/* ----------------------- Modbus includes ----------------------------------*/
|
||
#include "mb.h"
|
||
#include "mbport.h"
|
||
/* ----------------------- static functions ---------------------------------*/
|
||
static void prvvUARTTxReadyISR(void);
|
||
static void prvvUARTRxISR(void);
|
||
/* ----------------------- Start implementation -----------------------------*/
|
||
|
||
void vMBPortSerialEnable(BOOL xRxEnable, BOOL xTxEnable)
|
||
{
|
||
if (xRxEnable)
|
||
{
|
||
SLAVER_RS485_RECEIVE_MODE;
|
||
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
|
||
}
|
||
else
|
||
{
|
||
SLAVER_RS485_SEND_MODE;
|
||
USART_ITConfig(USART1, USART_IT_RXNE, DISABLE);
|
||
}
|
||
if (xTxEnable)
|
||
{
|
||
USART_ITConfig(USART1, USART_IT_TXE, ENABLE);
|
||
}
|
||
else
|
||
{
|
||
USART_ITConfig(USART1, USART_IT_TXE, DISABLE);
|
||
}
|
||
}
|
||
|
||
void vMBPortClose(void)
|
||
{
|
||
USART_ITConfig(USART1, USART_IT_TXE | USART_IT_RXNE, DISABLE);
|
||
USART_Cmd(USART1, DISABLE);
|
||
}
|
||
//Ĭ<><C4AC>һ<EFBFBD><D2BB><EFBFBD>ӻ<EFBFBD> <20><><EFBFBD><EFBFBD>1 <20><><EFBFBD><EFBFBD><EFBFBD>ʿ<EFBFBD><CABF><EFBFBD><EFBFBD><EFBFBD> <20><>ż<EFBFBD><C5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
BOOL xMBPortSerialInit(UCHAR ucPORT, ULONG ulBaudRate, UCHAR ucDataBits,
|
||
eMBParity eParity)
|
||
{
|
||
GPIO_InitTypeDef GPIO_InitStructure;
|
||
USART_InitTypeDef USART_InitStructure;
|
||
NVIC_InitTypeDef NVIC_InitStructure;
|
||
//======================ʱ<>ӳ<EFBFBD>ʼ<EFBFBD><CABC>=======================================
|
||
RCC_APB2PeriphClockCmd(
|
||
RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_USART1,
|
||
ENABLE);
|
||
//======================IO<49><4F>ʼ<EFBFBD><CABC>=======================================
|
||
//USART1_TX
|
||
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
|
||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
|
||
GPIO_Init(GPIOA, &GPIO_InitStructure);
|
||
//USART1_RX
|
||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
|
||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
|
||
GPIO_Init(GPIOA, &GPIO_InitStructure);
|
||
//<2F><><EFBFBD><EFBFBD>485<38><35><EFBFBD>ͺͽ<CDBA><CDBD><EFBFBD>ģʽ
|
||
// TODO <20><>ʱ<EFBFBD><CAB1>дB13 <20><>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
|
||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
|
||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
|
||
GPIO_Init(GPIOB, &GPIO_InitStructure);
|
||
//======================<3D><><EFBFBD>ڳ<EFBFBD>ʼ<EFBFBD><CABC>=======================================
|
||
USART_InitStructure.USART_BaudRate = ulBaudRate;
|
||
//<2F><><EFBFBD><EFBFBD>У<EFBFBD><D0A3>ģʽ
|
||
switch (eParity)
|
||
{
|
||
case MB_PAR_NONE: //<2F><>У<EFBFBD><D0A3>
|
||
USART_InitStructure.USART_Parity = USART_Parity_No;
|
||
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
|
||
break;
|
||
case MB_PAR_ODD: //<2F><>У<EFBFBD><D0A3>
|
||
USART_InitStructure.USART_Parity = USART_Parity_Odd;
|
||
USART_InitStructure.USART_WordLength = USART_WordLength_9b;
|
||
break;
|
||
case MB_PAR_EVEN: //żУ<C5BC><D0A3>
|
||
USART_InitStructure.USART_Parity = USART_Parity_Even;
|
||
USART_InitStructure.USART_WordLength = USART_WordLength_9b;
|
||
break;
|
||
default:
|
||
return FALSE;
|
||
}
|
||
|
||
USART_InitStructure.USART_StopBits = USART_StopBits_1;
|
||
USART_InitStructure.USART_HardwareFlowControl =
|
||
USART_HardwareFlowControl_None;
|
||
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
|
||
if (ucPORT > 1)
|
||
return FALSE;
|
||
|
||
ENTER_CRITICAL_SECTION(); //<2F><>ȫ<EFBFBD><C8AB><EFBFBD>ж<EFBFBD>
|
||
|
||
USART_Init(USART1, &USART_InitStructure);
|
||
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
|
||
USART_Cmd(USART1, ENABLE);
|
||
|
||
//=====================<3D>жϳ<D0B6>ʼ<EFBFBD><CABC>======================================
|
||
//<2F><><EFBFBD><EFBFBD>NVIC<49><43><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD>ΪGroup2<70><32>0-3<><33>ռʽ<D5BC><CABD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD>0-3<><33><EFBFBD><EFBFBD>Ӧʽ<D3A6><CABD><EFBFBD>ȼ<EFBFBD>
|
||
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
|
||
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
|
||
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
|
||
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
|
||
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
|
||
NVIC_Init(&NVIC_InitStructure);
|
||
|
||
EXIT_CRITICAL_SECTION(); //<2F><>ȫ<EFBFBD><C8AB><EFBFBD>ж<EFBFBD>
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
BOOL xMBPortSerialPutByte(CHAR ucByte)
|
||
{
|
||
USART_SendData(USART1, ucByte);
|
||
return TRUE;
|
||
}
|
||
|
||
BOOL xMBPortSerialGetByte(CHAR * pucByte)
|
||
{
|
||
*pucByte = USART_ReceiveData(USART1);
|
||
return TRUE;
|
||
}
|
||
|
||
/*
|
||
* Create an interrupt handler for the transmit buffer empty interrupt
|
||
* (or an equivalent) for your target processor. This function should then
|
||
* call pxMBFrameCBTransmitterEmpty( ) which tells the protocol stack that
|
||
* a new character can be sent. The protocol stack will then call
|
||
* xMBPortSerialPutByte( ) to send the character.
|
||
*/
|
||
void prvvUARTTxReadyISR(void)
|
||
{
|
||
pxMBFrameCBTransmitterEmpty();
|
||
}
|
||
|
||
/*
|
||
* Create an interrupt handler for the receive interrupt for your target
|
||
* processor. This function should then call pxMBFrameCBByteReceived( ). The
|
||
* protocol stack will then call xMBPortSerialGetByte( ) to retrieve the
|
||
* character.
|
||
*/
|
||
void prvvUARTRxISR(void)
|
||
{
|
||
pxMBFrameCBByteReceived();
|
||
}
|
||
/*******************************************************************************
|
||
* Function Name : USART1_IRQHandler
|
||
* Description : This function handles USART1 global interrupt request.
|
||
* Input : None
|
||
* Output : None
|
||
* Return : None
|
||
*******************************************************************************/
|
||
void USART1_IRQHandler(void)
|
||
{
|
||
rt_interrupt_enter();
|
||
//<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
|
||
if (USART_GetITStatus(USART1, USART_IT_RXNE) == SET)
|
||
{
|
||
USART_ClearITPendingBit(USART1, USART_IT_RXNE);
|
||
prvvUARTRxISR();
|
||
}
|
||
//<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
|
||
if (USART_GetITStatus(USART1, USART_IT_TXE) == SET)
|
||
{
|
||
USART_ClearITPendingBit(USART1, USART_IT_TXE);
|
||
prvvUARTTxReadyISR();
|
||
}
|
||
rt_interrupt_leave();
|
||
}
|