Pic Programmer Problems...

Status
Not open for further replies.

niz_se

Junior Member level 1
Joined
Jun 1, 2001
Messages
16
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Visit site
Activity points
76
Hi!

I have built a PIC-PG1 programmer (se https://www.olimex.com/dev/pic-pg1.html) and I have gone trough the design over and over, but it refuses to program my PIC16F870.

I belive that I´m short in voltage (about 10,5v for MCLR) so maybe its my serial port that is the problem.

Now, can anyone tell me how to check this with a multimeter?
What voltage on wich pin?

For the two zeners I used a BZX55/C6V2 and a BZX55/C5V1.

Please help me!
Regards!
 

Replace combination LED, D3 with zener 8V2. This should solve your problem .
 

Status
Not open for further replies.

Similar threads

Cookies are required to use this site. You must accept them to continue using the site. Learn more…