Status: Assigned
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 131 by derkvdwal: Dwarf board programming problem
http://code.google.com/p/jallib/issues/detail?id=131
I have a Dwarf board DB016 (bought from VOTI) with a PIC 18F252.
When I want to program the board with "the blinking led" example then I get
an error messages from the programmer.
When I build the "blinking led circuit" on a breadboard then programming is
no problem!
What am I doing wrong???????????????
When I program the Dwarf board with the jumper J1 placed on the Wisp 648
programmer I get the next error message:
***************************************************************************
XWisp 1.35, command line mode
hardware: Wisp628 1.27 (fast) (wisp648 firmware)
send='004fx' received='004F'
This error is likely caused by a power failure when the Wisp628-with-dongle
/ Wi
sp648 hardware shorts the power. This can for instance be caused by a
hardware p
roblem in the dongle (use a larger the elco?) or Wisp648, or by an external
5V p
ower source that does not respond well to a brief short (maybe try a ~ 5
Ohm ser
ies resistor, or use an 7805-based power supply). If you do not need the
power s
hort (depends on your PIC type) you might disable it (Wisp648: remove the
jumper
or put it in the inactive position.
ERROR
press <enter> to continue
***************************************************************************
The red led on the Wisp648 and the red led on the Dwarf board are blinking
a short time and then switch off!
When I program without the jumper then I get the next message:
***************************************************************************
XWisp 1.35, command line mode
hardware: Wisp628 1.27 (fast) (wisp648 firmware)
device word 3FFF or FFFF, can not identify this target: defect,
unsupported, or
16x84
ERROR
press <enter> to continue
***************************************************************************
The red led on the Wisp648 and the red led on the Dwarf board are switching
on and don't switch off!
I use a Wisp648 with firmware v1.27
I have used a regulated power supply
I have used a regulated power supply with a 5 ohm resistor
I have used a 12 v dc 1a wall wart
I don't see differences.
The breadboard has no problems with the power supply.
I feed the circuit through the Wisp 648
(When I place the programmed PIC from the breadboard into the Dwarf then
the yellow led on the Dwarf board blinks well.)
Regards,
Derk van der Wal
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