Pic to GSM Phone connection (HSerin problems)

[mister_e]

So i hope you have include the Max232 (icl232) too?

[Ioannis]

As Steve asked, did you used the 232 chip? What do you mean by "only the right portion"?

Ioannis

[Ziki]

hi ...ioannis ..how do i disable the echo?ATEO mean? ..is it necesssary to off it ???
thxxx....

[Ioannis]

Yes. Please do disable the response from the mobile since everything that you type is echoed back so you can see it on the terminal window. But on the microcontrler it is not needed. In fact, it messes with the UART as it is getting characters.

ATE0 (<-- this is zero, NOT letter O) is AT command to disable echo. Not that after a reset, this cames back to normal, so you have to send it again. Say on top of the program.

Ioannis

[Ziki]

ok..thx...
can you have a look at this thread ....
http://www.picbasic.co.uk/forum/showthread.php?t=4425
i use serin since hserin canot work ....
but don't know why ...it can only store the 1st data into the variable -buffer(1)
since the speed is reduced to T300 ...it should be able to catch it right ?
i try using 8Mhz ...also no luck ....
thxx

[Ioannis]

Sorry, cannot help any more. It seems to be something with your mobile. All the schematics is OK. About PDU I have no idea and to be honest, I don't want to get!!!

I always used phones with text ability and in control applications Wavecom and Telit modules.

I think that you have timing problem since the Hserin/Hserout is the best command on the PBP repertore. Of course a string handling needs to be improoved, but that's another thread story.

Ioannis