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Getting a SuperPET online
- Thread starter Ral-Clan
- Start date
CR = 0x0D is the carriage return, always in the history of computing. 
The WiModem does not need the LF (0x0A) to terminate a line, that just moves down one line without changing the carriage position.
@Ral-Clan, if you are actually getting the AATTII back, then it means that the ASCII is being understood and echo'd back. It would seem that the RETURN key is not being recognized (sent by the PET) Just pressing RETURN over and over again should be causing the Tx and Rx lights to both light up (sequentially). If you don't see this, then RETURN is *not* being sent. You might then look at the terminal program to see what filtering options are available.
What terminal software are you using? Perhaps I can try it or look at the code.
The WiModem does not need the LF (0x0A) to terminate a line, that just moves down one line without changing the carriage position.
@Ral-Clan, if you are actually getting the AATTII back, then it means that the ASCII is being understood and echo'd back. It would seem that the RETURN key is not being recognized (sent by the PET) Just pressing RETURN over and over again should be causing the Tx and Rx lights to both light up (sequentially). If you don't see this, then RETURN is *not* being sent. You might then look at the terminal program to see what filtering options are available.
What terminal software are you using? Perhaps I can try it or look at the code.
daver2
10k Member
That is a good idea by Jim regarding just pressing the RETURN key.
Jim, I just wanted to double check... The SuperPET communications setup program uses 0x0D as a RETURN by default. So that is one issue that is definitely ruled out.
I would also suggest entering all of the alphabet and numbers as well as symbols to see if you get the correct echo back for each and every key. I have seen some strange things if the serial parameters are not 100% correct. For example, some characters get converted into others!
As long as we keep ruling out one issue at a time, we should eventually find the issue that is the problem! We have sorted out the wires, now we need to sort out the software.
Dave
Jim, I just wanted to double check... The SuperPET communications setup program uses 0x0D as a RETURN by default. So that is one issue that is definitely ruled out.
I would also suggest entering all of the alphabet and numbers as well as symbols to see if you get the correct echo back for each and every key. I have seen some strange things if the serial parameters are not 100% correct. For example, some characters get converted into others!
As long as we keep ruling out one issue at a time, we should eventually find the issue that is the problem! We have sorted out the wires, now we need to sort out the software.
Dave
I verified again on my Amiga that just pressing RETURN does in fact receive and echo the RETURN character. I looked at my code for this (now 8 years old) and I actually accept RETURN *or* LINEFEED as the termination of a line while in COMMAND mode.
@Ral-Clan - you might want to try doing an emergency reset on the off chance that some setting got changed. This would reset the "eeprom" (settings) back to the factory defaults. S-Register 3 is the character used for CR and S-Register 4 is the character for LF. If those are NULL for some reason, RETURN would be ignored. I know you said that this sucessfully worked with an Amiga, but after all of the keyboard beating trying to get a response it's possible that some setting(s) got changed (although not likely as you also need to use AT&W to store the settings).. but I am not sure what was done while it was plugged into the Amiga. The emergency reset process is described in the manual.
@Ral-Clan - you might want to try doing an emergency reset on the off chance that some setting got changed. This would reset the "eeprom" (settings) back to the factory defaults. S-Register 3 is the character used for CR and S-Register 4 is the character for LF. If those are NULL for some reason, RETURN would be ignored. I know you said that this sucessfully worked with an Amiga, but after all of the keyboard beating trying to get a response it's possible that some setting(s) got changed (although not likely as you also need to use AT&W to store the settings).. but I am not sure what was done while it was plugged into the Amiga. The emergency reset process is described in the manual.