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yes it works for !

I have tested SD and SDHC cards 2~16gb on PIC24f and dsPIC33E

for initialization use:

/*********************
Function: InitializeSD()
Return 1 if success
Return 0 if ...

Solution.

http://www.ccsinfo.com/forum/viewtopic.php?t=52490 Smile

This code require mmcsd.c for read and write operations.

********
Tested SD cards
2,4,8,16 gb
********
you only have to call InitializeSD() instead of mmcsd_init()

InitializeSD =1 if success ...

Look at the timeout option in #use rs232
There may well be better ways of handling things, but this is a start.

thanks solved my problem.

i only want to read values of some registers so i have written my own program.

the problem is that sometimes it stuck on fgetc() may be because nothing is comming from port .

i am using soft ...

I am trying to us a software UART on PIC24FJ64GA004 and wants to receive data when available but i am unable to find any interrupt for software serial port.

I'm not an expert but I suggest you test with a simple setup.
Let modbus library use hardware UART.
Use ASCII mode and if you can, use another 485 receiver and a PC to see whats going on the bus.
...

Yes what Ttelmah means it should be defined as 19200 and not 9600.

Regards

on energy meter i have changed it to 9600

#define MODBUS_SERIAL_BAUD 9600

default baud on your device, is 19200....

dear its already defined see system.h

i am using MAX3843 to use 485
here is schematic
...
and in code i have defined in this way

#define MODBUS_SERIAL_ENABLE_PIN PIN_B12 // Controls DE pin for RS485
#define ...

i am using MAX3843 to use 485

here is schematic

http://s15.postimg.org/y5hecn163/screenshot_22.png#define MODBUS_SERIAL_ENABLE_PIN PIN_B12 // Controls DE pin for RS485
# ...

I get those warning too. I don't know exactly what problems they might cause, but my circuit works.
BTW, I use hardware UART and I don't know if that makes a difference.

hmm ok i'll try it on real ...

Even though I don't use Modbus, I'd suggest you code a complete program, using the CCS supplied example as a 'template'.
While your incomplete code 'snippet' might look OK to some,unless a complete, ...

I have made the following code to read register values but i am getting

Warnings:

#include <24FJ64GA004.h>

#include "system.h"
#include <float.h>
#include <math.h& ...

It's easy. Use function "modbus_read_holding_registers". To make it simple, read only one register.
modbus_read_holding_registers(unsigned int8 address, unsigned int16 start_address, unsign ...