[Ovmsdev] Debug logging via diag serial port

[Michael Balzer]

I wanted to get some direct debug logging. It took me some time to 
figure out the diag port only echoes what is sent from the SIM908 to the 
PIC18, I first thought it tapped RX+TX so I could see the complete 
communication.

Next problem was the modem switches echos off (after COPS I think), so I 
need to re-enable them at least once in a while.

I'm now using this scheme in can_state_ticker1():

#ifdef OVMS_DEBUG
     // CAN debug log via DIAG port SIM908 command echo:
     // ATT: could be a problem for running data transfers,
     //      should not be enabled for production/live firmware images!
     net_puts_rom( "ATE1\r" );
     sprintf( net_scratchpad,
             (rom far char*) "# ERR=%u SOC=%u RNG=%u SPD=%d PWR=%d 
CHG=%u\r",
             RXERRCNT, can_soc, can_range, can_speed, can_power, 
car_chargestate );
     net_puts_ram( net_scratchpad );
#endif

My questions: am I right with the suspected problem, and is there a 
better way?

Regards,
Michael

-- 
Michael Balzer * Paradestr. 8 * D-42107 Wuppertal
Fon 0202 / 272 2201 * Handy 0176 / 206 989 26

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