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Topic History of: problem setting the EUART speed
Max. showing the last posts - (Last post first)
| majestrix |
Hello Dariog,
yeah, i connected the module to PC, configured it and put it back to my device. and i guess it stores the configuration if u dont alter it, right..??
actaully i wanted to do it every time i boot the device too, coz in case something goes wrong with the setting.. but so far no problems.
well i guess i didnt need to remove the trailing bits after all.. 
i as well tried with the configuration software in the LPRS site (i guess its just a fancy terminal program). well it configures wheather u use it or terminal as far as i'm concerned. phew..
thanks.
Hasan |
| dariog |
ok, I'm happy then !
As for the configuration... you mean that you set the configuration using a PC and then connect the Radio to your USB device? I , on the other hand, do set the parameters at boot, every time...
Should be ok in both cases. Actually, I didn't even care that you could store configuration into the LPRS !
Ah, you did not have to remove the trailing "zeros" then? |
| majestrix |
Hi Dariog,
well it seems like we are having two different datasheets after all.. anyhow i checked with hostready pin HI today and was able to implement the link.. 
for configuration i'm directly connecting to PC with a MAX232 and configuring it.. not the best solution, but as long as it works right..? 
thanks for the help man.
Hasan |
| dariog |
majestrix wrote:
Well, it looks fairly similar to me too. i mean ur method and the way i was doing it. may be the prob is created by the null string then..?
yeah, I hope so 
also i see that in ur RECEIVE_DATA fuction u have LATBbits.LATB0=0; (which i believe is setting the "host ready" signal) but what i undestood from the datasheet hostready pin of the transceiver has to be put to Hi to receive data. but you are putting it to LO.. did i get something wrong here, or that line is code is not what i'm assuming it to be (host ready)?
oh, well, on page 2 of 10 of a datasheet named "easyradio ER900FHTRS 1-4 Iss 1-3 April 2003" I see that you have to pull dat pin down in ordr to have LPRS transmitting out its bytes. But I saw many flavours of that datasheet  so maybe you've got a different one.
The one I trusted more (though I don't remember any contradiction, just less clarity among the datasheets) says that LPRS goes "Busy Output" when has gotten enough bytes to send on the air, and that Host REady is low when the Host is Ready to receive from LPRS.
and one other thing.. in the RECEIVE_DATA func, i see u are returning i (a local variable to the func), but when u are calling u are just calling as RECEIVE_DATA(myBuf,9); i couldnt really figure out what that i does.
it merely returns the #of chars read, so it's a kind of confirmation (that I don't even use, at the time...)
one more qn... I dont see you checking the echo; if it actaully echored the right characters., are u using the fast ack method..? that sending 0x06 as ACK..
No, I'm not using FAST-ACK. I simply ignore the return value... at the moment. |
| majestrix |
Hi Dariog,
Thanks for the reply...
Well, it looks fairly similar to me too. i mean ur method and the way i was doing it. may be the prob is created by the null string then..?
also i see that in ur RECEIVE_DATA fuction u have LATBbits.LATB0=0; (which i believe is setting the "host ready" signal) but what i undestood from the datasheet hostready pin of the transceiver has to be put to Hi to receive data. but you are putting it to LO.. did i get something wrong here, or that line is code is not what i'm assuming it to be (host ready)?
and i'm not questionang ur method, but just curious 
and one other thing.. in the RECEIVE_DATA func, i see u are returning i (a local variable to the func), but when u are calling u are just calling as RECEIVE_DATA(myBuf,9); i couldnt really figure out what that i does.
one more qn... I dont see you checking the echo; if it actaully echored the right characters., are u using the fast ack method..? that sending 0x06 as ACK..
thanks for ur help.
Hasan |
| majestrix |
Hi Dariog,
Thanks for the reply...
Well, it looks fairly similar to me too. i mean ur method and the way i was doing it. may be the prob is created by the null string then..?
also i see that in ur RECEIVE_DATA fuction u have LATBbits.LATB0=0; (which i believe is setting the "host ready" signal) but what i undestood from the datasheet hostready pin of the transceiver has to be put to Hi to receive data. but you are putting it to LO.. did i get something wrong here, or that line is code is not what i'm assuming it to be (host ready)?
and i'm not questionang ur method, but just curious
and one other thing.. in the RECEIVE_DATA func, i see u are returning i (a local variable to the func), but when u are calling u are just calling as RECEIVE_DATA(myBuf,9); i couldnt really figure out what that i does.
one more qn... I dont see you checking the echo; if it actaully echored the right characters., are u using the fast ack method..? that sending 0x06 as ACK..
thanks for ur help.
Hasan |
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