ghormoon
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Hello,
I've been searching for a solution for almost a week, most results were form this forum, but I haven't managed to make it working.
I've built programmer according to this scheme: https://www.bravekit.com/document/PIC_JDM/PIC_JDM_schem.pdf
It should be able to program PIC18F4550 which i have.
I've tried few softwares, eg. in PICPgm it detects the programmer (as JDM), but doesn't detect the PIC (doesn't matter if I set it to Olimex PIC-PG2 manually).
I thought that it may be caused by low voltage, but I haven't been succesfull even with adding 12V and 5V external power supplies instead of powering from serial port. (When I measure serial port without programmer, it gives around 11.6V, when I connect programmer then about 10.5V and when i connect PIC to the programmer, something above 9V, if I measure the ICSP connector, i get about 5V without PIC, 1.5V with PIC (without external supply))
Any ideas?
Thanks in advance,
Ghormoon
I've been searching for a solution for almost a week, most results were form this forum, but I haven't managed to make it working.
I've built programmer according to this scheme: https://www.bravekit.com/document/PIC_JDM/PIC_JDM_schem.pdf
It should be able to program PIC18F4550 which i have.
I've tried few softwares, eg. in PICPgm it detects the programmer (as JDM), but doesn't detect the PIC (doesn't matter if I set it to Olimex PIC-PG2 manually).
I thought that it may be caused by low voltage, but I haven't been succesfull even with adding 12V and 5V external power supplies instead of powering from serial port. (When I measure serial port without programmer, it gives around 11.6V, when I connect programmer then about 10.5V and when i connect PIC to the programmer, something above 9V, if I measure the ICSP connector, i get about 5V without PIC, 1.5V with PIC (without external supply))
Any ideas?
Thanks in advance,
Ghormoon