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#include "stm32f10x.h"
#include "sys.h"
//#include "usart.h"
#include "led.h" /*------添加了IO控制端口的頭文件------*/
#include "mb.h"
#include "mbutils.h"
//輸入寄存器起始地址
#define REG_INPUT_START 0x0000
//輸入寄存器數(shù)量
#define REG_INPUT_NREGS 8
//保持寄存器起始地址
#define REG_HOLDING_START 0x0000
//保持寄存器數(shù)量
#define REG_HOLDING_NREGS 8
//線圈起始地址
#define REG_COILS_START 0x0000
//線圈數(shù)量
#define REG_COILS_SIZE 16
//開關寄存器起始地址
#define REG_DISCRETE_START 0x0000
//開關寄存器數(shù)量
#define REG_DISCRETE_SIZE 16
/* Private variables ---------------------------------------------------------*/
//輸入寄存器內容
uint16_t usRegInputBuf[REG_INPUT_NREGS] = {0x0ed6,0x1001,0x1002,0x1003,0x1004,0x1005,0x1006,0x1007};
//寄存器起始地址
uint16_t usRegInputStart = REG_INPUT_START;
//保持寄存器內容
uint16_t usRegHoldingBuf[REG_HOLDING_NREGS] = {0x0ed6,0x3f8e,0x147b,0x400e,0x1eb8,0x4055,0x147b,0x408e};
//保持寄存器起始地址
uint16_t usRegHoldingStart = REG_HOLDING_START;
//線圈狀態(tài)
uint8_t ucRegCoilsBuf[REG_COILS_SIZE / 8] = {0x03,0x00}; //0x03表示2個LED全亮，這是剛復位后的狀態(tài)。
//開關輸入狀態(tài)
uint8_t ucRegDiscreteBuf[REG_DISCRETE_SIZE / 8] = {0x00,0x00};
void LED_Poll(void);
void Button_Poll(void);
int main(void)
{
LED_Config(); //--------LED端口初始化-------------
Button_Config(); //-----按鍵端口初始化------------
eMBInit(MB_RTU, 0x02, 0x01, 9600, MB_PAR_NONE); //初始化 RTU模式從機地址為1 USART1 9600 無校驗
eMBEnable(); //啟動FreeModbus
while(1)
{
eMBPoll();
LED_Poll();
Button_Poll();
}
}
void LED_Poll(void)
{
uint8_t LED_Status;
LED_Status = ucRegCoilsBuf[0];
if(LED_Status & 0x01) {LED1_ON;} else {LED1_OFF;}
if(LED_Status & 0x02) {LED2_ON;} else {LED2_OFF;}
//if(LED_Status & 0x04) {LED3_ON;} else {LED3_OFF;}
}
void Button_Poll(void)
{
uint8_t Button_Status = 0x00;
BUTTON1_READ()?(Button_Status &=~ 0x01):(Button_Status |= 0x01);
BUTTON2_READ()?(Button_Status &=~ 0x02):(Button_Status |= 0x02);
//BUTTON3_READ()?(Button_Status &=~ 0x04):(Button_Status |= 0x04);
ucRegDiscreteBuf[0] = Button_Status;
}
/**
* @brief 輸入寄存器處理函數(shù)，輸入寄存器可讀，但不可寫。
* @param pucRegBuffer 返回數(shù)據指針
* usAddress 寄存器起始地址
* usNRegs 寄存器長度
* @retval eStatus 寄存器狀態(tài)
*/
eMBErrorCode
eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
{
eMBErrorCode eStatus = MB_ENOERR;
int16_t iRegIndex;
//查詢是否在寄存器范圍內
//為了避免警告，修改為有符號整數(shù)
if( ( (int16_t)usAddress >= REG_INPUT_START ) \
&& ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
{
//獲得操作偏移量，本次操作起始地址-輸入寄存器的初始地址
iRegIndex = ( int16_t )( usAddress - usRegInputStart );
//逐個賦值
while( usNRegs > 0 )
{
//賦值高字節(jié)
*pucRegBuffer++ = ( uint8_t )( usRegInputBuf[iRegIndex] >> 8 );
//賦值低字節(jié)
*pucRegBuffer++ = ( uint8_t )( usRegInputBuf[iRegIndex] & 0xFF );
//偏移量增加
iRegIndex++;
//被操作寄存器數(shù)量遞減
usNRegs--;
}
}
else
{
//返回錯誤狀態(tài)，無寄存器
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* @brief 保持寄存器處理函數(shù)，保持寄存器可讀，可讀可寫
* @param pucRegBuffer 讀操作時--返回數(shù)據指針，寫操作時--輸入數(shù)據指針
* usAddress 寄存器起始地址
* usNRegs 寄存器長度
* eMode 操作方式，讀或者寫
* @retval eStatus 寄存器狀態(tài)
*/
eMBErrorCode
eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs,
eMBRegisterMode eMode )
{
//錯誤狀態(tài)
eMBErrorCode eStatus = MB_ENOERR;
//偏移量
int16_t iRegIndex;
//判斷寄存器是不是在范圍內
if( ( (int16_t)usAddress >= REG_HOLDING_START ) \
&& ( usAddress + usNRegs <= REG_HOLDING_START + REG_HOLDING_NREGS ) )
{
//計算偏移量
iRegIndex = ( int16_t )( usAddress - usRegHoldingStart );
switch ( eMode )
{
//讀處理函數(shù)
case MB_REG_READ:
while( usNRegs > 0 )
{
*pucRegBuffer++ = ( uint8_t )( usRegHoldingBuf[iRegIndex] >> 8 );
*pucRegBuffer++ = ( uint8_t )( usRegHoldingBuf[iRegIndex] & 0xFF );
iRegIndex++;
usNRegs--;
}
break;
//寫處理函數(shù)
case MB_REG_WRITE:
while( usNRegs > 0 )
{
usRegHoldingBuf[iRegIndex] = *pucRegBuffer++ << 8;
usRegHoldingBuf[iRegIndex] |= *pucRegBuffer++;
iRegIndex++;
usNRegs--;
}
break;
}
}
else
{
//返回錯誤狀態(tài)
eStatus = MB_ENOREG;
}
return eStatus;
}
/**
* @brief 線圈寄存器處理函數(shù)，線圈寄存器可讀，可讀可寫
* @param pucRegBuffer 讀操作---返回數(shù)據指針，寫操作--返回數(shù)據指針
* usAddress 寄存器起始地址
* usNRegs 寄存器長度
* eMode 操作方式，讀或者寫
* @retval eStatus 寄存器狀態(tài)
*/
eMBErrorCode
eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNCoils,
eMBRegisterMode eMode )
{
//錯誤狀態(tài)
eMBErrorCode eStatus = MB_ENOERR;
//寄存器個數(shù)
int16_t iNCoils = ( int16_t )usNCoils;
//寄存器偏移量
int16_t usBitOffset;
//檢查寄存器是否在指定范圍內
if( ( (int16_t)usAddress >= REG_COILS_START ) &&
( usAddress + usNCoils <= REG_COILS_START + REG_COILS_SIZE ) )
{
//計算寄存器偏移量
usBitOffset = ( int16_t )( usAddress - REG_COILS_START );
switch ( eMode )
{
//讀操作
case MB_REG_READ:
while( iNCoils > 0 )
{
*pucRegBuffer++ = xMBUtilGetBits( ucRegCoilsBuf, usBitOffset,
( uint8_t )( iNCoils > 8 ? 8 : iNCoils ) );
iNCoils -= 8;
usBitOffset += 8;
}
break;
//寫操作
case MB_REG_WRITE:
while( iNCoils > 0 )
{
xMBUtilSetBits( ucRegCoilsBuf, usBitOffset,
( uint8_t )( iNCoils > 8 ? 8 : iNCoils ),
*pucRegBuffer++ );
iNCoils -= 8;
}
break;
}
}
else
{
eStatus = MB_ENOREG;
}
return eStatus;
}
eMBErrorCode
eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
{
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