Search found 19 matches

Hi,

Everything is working fine now. I am using alternate pins of uart1 of dspic30f3013 (pin no: 11 and 12). i got the correct responses but when i changed the connection back to the main uart1 pin ...

Hi,

Thank you for your reply. i had already developed modbus rtu through serial communication(through COM port). It was successfully tested. Now the requirement from client side has been changed so ...

HI,

Thank you very much for your inputs. i had already tried with RTU reply format but without CRC. Still gateway gives the error code '7' -negative acknowledgement. I am not setting this error cod ...

Hi,
i have debugged the code, my code is putting "slave address,func code, byte count and data" to UART1 one by one using fputc(data,UART1);. i tried to watch u1txreg of the pic, but i sho ...

HI,

I am implementing modbus tcp/ip protocol through a serial gateway TSXETG100 (Schneider Electric) in 4 wire connection. I have added the MBAP header to the modbus query and response with referen ...

Hi,

I am using dspic30f3013 with ccs compiler. I need to set an ext. oscillator. I have connected a 20MHz crystal as required in the application.
I have used the following command for oscillator s ...

Hi,

I need to set up a 3.5 character silent space between message frames for modbus protocol. I am using dspic30f3013. 20MHz clock.

baud rate=9600
each character is 16 bit wide

I calculated ...

I used the following code and it worked.

#word U1MODE=0x20C
#word U2MODE=0x216

#bit ALTIO = U1MODE.10
#bit U2EN = U2MODE.15
#bit U1EN = U1MODE.15

But I wish to know what was my mis ...

Hi all,

I need to set individual bits in SFRs. I tried the following code but it didn't work.

#byte U1MODE=getenv("SFR:U1MODE")
#byte U2MODE=getenv("SFR:U2MOD ...

Hi...

Thank you all for your reply Very Happy

yep that was my mistake. Just a 'fall before the rise'.

Actually I was using the header file C:\Program Files\PICC\Devices\30F3013.h, then I had a prob ...

Hi All,

Anyone knows the answer. It might be simple for you as you have done lot of projects. This is my first project with PIC. No one to guide me. So i can approach only you guys. So please respo ...

Hi

i am using a code for communicating with the UART1 of dsPIC30f3013. For that i have included the header file C:\Program Files\Microchip\MPLAB C30\support\dsPIC30F\h\p30f3013.h

as #include & ...

Hi,

I am using the following piece of code for uart1 communication, sending the command 'G' through MAX233 to UART1. max233 is working fine. But uart1 is not responding. I checked it with uart2 wh ...

Thank you very much (RF Developer) sir, that was helpful. I got the idea. Thanks a lot.

Hi,

Shall I program eeprom for storing the registers data so that I can query with the particular address where I have stored the data ? Or any other method to map particular address to holding re ...