Proteus, Compim and Modem

compim

I am experimenting with proteus and trying to connect a simulated microntroller to a real physical modem via compim, seems does not work, anyone tried this?

I am just sending plain AT commands and check if the modems reacts, as of now, modem cannot react.

Any compims users out there might want to help.

proteus compim

hi

yes it's work i have tested and used it to interface with mobile phone for sending sms must check your config also which types of modem your are interfacing with compim

proteus modem

I am connecting a microcontroller to the compim, is it TX of micro to TX of compim? And RX of micro to RX of compim?

Or the other way around, RX of micro to TX of compim, TX of micro to TX of compim.

Thanks

compim

How did you set RTS, DTS?

mike

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https://www.ezpcb.com

does compim work

ezpcb said:

How did you set RTS, DTS?

mike

-----------------------------
h**p://www.ezpcb.com

Click to expand...

Hi,

I hope you are not addressing me on your question, but if it is addressed to me, I shorted CTS and RTS, also I shorted DTR and DSR, DCD is connected to microcntroller to check if handshake is already done.

proteus at commands

Hi,

Also take care about physicall and virtual baud rate. You need to match this values if your computer is too slow for real-time processing.

Also simulation time in proteus is not linear and is not real-time. This mean that time for modem and your application in proteus is not same as in case when you use real hardware connection.

If simulation is overloaded simulation speed decreases and simulation
time increases, so time is not linear and depends on process load and process power of your computer.

When you want to connect modem to proteus application you must take care that you have two very asynchronous process, one in simulation and one in the real hardware.

So you need to synchronize these processes with appropriate buffers in proteus application and match baud rates.

rts compim

I got the system working now, a delay must be put from the turning ON of the modem before sending the AT commands.

proteus compim

i m stuck can anyone help me how to simulate at commands on proteus

here is my code
***************************************

void main()
{
Delay(50000);
uart_init();
Delay(50000);
uart_string("ATE0");
uart_send(0x0D);//ending <enter>
Delay(50000);

// uart_string("AT");
// uart_send(0x0D);//ending <enter>
// Delay(50000);

uart_string("AT+CMGF=1");
uart_send(0x0D);//ending <enter>
Delay(50000);

//uart_string("AT+CSCA=\"+923210006001\"");
//uart_send(0x0D);//ending <enter>
// Delay(50000);

uart_string("AT+CMGS=\"0113456789\"");
uart_send(0x0D);//ending <enter>
Delay(50000);

uart_string("hello this is testing");
uart_send(0x1A);//ending <crtl<z>>
Delay(50000);
}