Test

Dependencies:   mbed Modbus

Files at this revision

API Documentation at this revision

Comitter:
mbedhe
Date:
Tue Oct 22 09:20:58 2019 +0000
Commit message:
TEst

Changed in this revision

Modbus.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r bc6e22bac566 Modbus.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Modbus.lib	Tue Oct 22 09:20:58 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/rajit/code/Modbus/#3e360cf155b6
diff -r 000000000000 -r bc6e22bac566 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Oct 22 09:20:58 2019 +0000
@@ -0,0 +1,146 @@
+#include "mbed.h"
+
+/* ----------------------- Modbus includes ----------------------------------*/
+#include "mb.h"
+#include "mbport.h"
+ 
+/* ----------------------- Defines ------------------------------------------*/
+#define REG_INPUT_START 1000
+#define REG_INPUT_NREGS 4
+#define SLAVE_ID 0x0A
+
+//------------------------------------
+// Hyperterminal configuration
+// 9600 bauds, 8-bit data, no parity
+//------------------------------------
+
+Serial pc_port(SERIAL_TX, SERIAL_RX);
+
+DigitalOut myled(LED1);
+/*
+int main()
+{
+    int i = 1;
+    pc_port.printf("Hello World !\n");
+    while(1) {
+        wait(1);
+        pc_port.printf("This program runs since %d seconds.\n", i++);
+        myled = !myled;
+    }
+}
+*/
+ 
+/* ----------------------- Static variables ---------------------------------*/
+static USHORT   usRegInputStart = REG_INPUT_START;
+static USHORT   usRegInputBuf[REG_INPUT_NREGS];
+ 
+/* ----------------------- Start implementation -----------------------------*/
+int
+main( void )
+{
+    eMBErrorCode    eStatus;
+ 
+    eStatus = eMBInit( MB_RTU, SLAVE_ID, 0, 9600, MB_PAR_NONE );
+ 
+    /* Enable the Modbus Protocol Stack. */
+    eStatus = eMBEnable(  );
+    
+    // Initialise some registers
+    usRegInputBuf[1] = 0x1234;
+    usRegInputBuf[2] = 0x5678;
+    usRegInputBuf[3] = 0x9abc;        
+ 
+    for( ;; )
+    {
+        ( void )eMBPoll(  );
+                
+        /* Here we simply count the number of poll cycles. */
+        usRegInputBuf[0]++;
+    }
+}
+ 
+eMBErrorCode
+eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
+{
+    eMBErrorCode    eStatus = MB_ENOERR;
+    int             iRegIndex;
+ 
+    if( ( usAddress >= REG_INPUT_START )
+        && ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
+    {
+        iRegIndex = ( int )( usAddress - usRegInputStart );
+        while( usNRegs > 0 )
+        {
+            *pucRegBuffer++ =
+                ( unsigned char )( usRegInputBuf[iRegIndex] >> 8 );
+            *pucRegBuffer++ =
+                ( unsigned char )( usRegInputBuf[iRegIndex] & 0xFF );
+            iRegIndex++;
+            usNRegs--;
+        }
+    }
+    else
+    {
+        eStatus = MB_ENOREG;
+    }
+ 
+    return eStatus;
+}
+ 
+eMBErrorCode
+eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs, eMBRegisterMode eMode )
+{
+    eMBErrorCode    eStatus = MB_ENOERR;
+    int             iRegIndex;
+ 
+    if (eMode == MB_REG_READ)
+    {
+        if( ( usAddress >= REG_INPUT_START )
+            && ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
+        {
+            iRegIndex = ( int )( usAddress - usRegInputStart );
+            while( usNRegs > 0 )
+            {
+                *pucRegBuffer++ =
+                    ( unsigned char )( usRegInputBuf[iRegIndex] >> 8 );
+                *pucRegBuffer++ =
+                    ( unsigned char )( usRegInputBuf[iRegIndex] & 0xFF );
+                iRegIndex++;
+                usNRegs--;
+            }
+        }
+    }
+ 
+    if (eMode == MB_REG_WRITE)
+    {
+        if( ( usAddress >= REG_INPUT_START )
+            && ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
+        {
+            iRegIndex = ( int )( usAddress - usRegInputStart );
+            while( usNRegs > 0 )
+            {
+                usRegInputBuf[iRegIndex] =  ((unsigned int) *pucRegBuffer << 8) | ((unsigned int) *(pucRegBuffer+1));
+                pucRegBuffer+=2;
+                iRegIndex++;
+                usNRegs--;
+            }
+        }
+    }
+ 
+    return eStatus;
+}
+ 
+ 
+eMBErrorCode
+eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNCoils,
+               eMBRegisterMode eMode )
+{
+    return MB_ENOREG;
+}
+ 
+eMBErrorCode
+eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
+{
+    return MB_ENOREG;
+}
+ 
diff -r 000000000000 -r bc6e22bac566 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Oct 22 09:20:58 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/3a7713b1edbc
\ No newline at end of file