BS2SX detected but not responding on BOE- Fixed!
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John Barrowman, again, and with great care, saved my butt.
The symptom on the BS2SX/BOE debug port was "connected but not
responding"
Here were the fixes:
Went back to the original laptop with WIN95B. Some problems detecting
the unit on an old desktop WIN95B system.
Put ten silicon diodes in series with the + DC - AC supply unit (A
Scepter "9" volt 300 ma supply, it came with the BOE-rev
The
supply was 17 volts open circuit and 14 volts when connected to the
BOE rev B power port. This caused the on-chip regulator to suffer a
huge heat dissipation problem. I couldn't keep my finger on the
regulator for longer then two seconds. The ten diodes dropped the
voltage to a sweet nine volts under load. No heating problems at all
now. (Your mileage may vary with the number of diodes needed.)
Made sure that the COM port was directed at COM1 and not in auto. (It
was finding my serial mouse on COM2. I also disabled COM2 from the
search list. (belt AND suspenders)
Used the '{$STAMP B2SX} statement at the front of the code.
Used a .bsx file extension on the source file vs .bs2
Upgraded to the V1.1 stampw.exe
Now it works AOK!!
Many thanks John!
Also the new BOE rev B schematic shows Vdd on several places on the
board. Be aware the Vdd generated by the board mounted regulator is
not the same Vdd as that generated by the on-chip regulator.
David Drake
The Socorro Group, LLC
President
www.thesocorrogroup.com
--- In basicstamps@y..., daviddrake@h... wrote:
> I have been having the same problems with a replacement BS2SX and
new
> BOE board. "Detects the BS2SX", but doesn't respond. I have tried
> changing comm ports, computers, went from the power supply to a 9v
> battery, no effect. Ouch!!
>
> Any diagnostic advice would be most appreciated.
>
> David Drake
The symptom on the BS2SX/BOE debug port was "connected but not
responding"
Here were the fixes:
Went back to the original laptop with WIN95B. Some problems detecting
the unit on an old desktop WIN95B system.
Put ten silicon diodes in series with the + DC - AC supply unit (A
Scepter "9" volt 300 ma supply, it came with the BOE-rev
Thesupply was 17 volts open circuit and 14 volts when connected to the
BOE rev B power port. This caused the on-chip regulator to suffer a
huge heat dissipation problem. I couldn't keep my finger on the
regulator for longer then two seconds. The ten diodes dropped the
voltage to a sweet nine volts under load. No heating problems at all
now. (Your mileage may vary with the number of diodes needed.)
Made sure that the COM port was directed at COM1 and not in auto. (It
was finding my serial mouse on COM2. I also disabled COM2 from the
search list. (belt AND suspenders)
Used the '{$STAMP B2SX} statement at the front of the code.
Used a .bsx file extension on the source file vs .bs2
Upgraded to the V1.1 stampw.exe
Now it works AOK!!
Many thanks John!
Also the new BOE rev B schematic shows Vdd on several places on the
board. Be aware the Vdd generated by the board mounted regulator is
not the same Vdd as that generated by the on-chip regulator.
David Drake
The Socorro Group, LLC
President
www.thesocorrogroup.com
--- In basicstamps@y..., daviddrake@h... wrote:
> I have been having the same problems with a replacement BS2SX and
new
> BOE board. "Detects the BS2SX", but doesn't respond. I have tried
> changing comm ports, computers, went from the power supply to a 9v
> battery, no effect. Ouch!!
>
> Any diagnostic advice would be most appreciated.
>
> David Drake