bencanon said:
Results with correct config:
Clock high pulls pin 12 of the PIC high
Output high pulls pin 13 of the PIC high
Vdd on applies Vdd to pin 14 of the PIC
Vpp on applies 13v to pin 4 of the PIC
The pin numbers does not make sense to me. You have to be careful in counting the pin number. You have not told us which PIC your are trying to use in the last test.
Let start again, hopefully with some good result. The correct choice for your 74LS05 is option "7406" inside the WinPicProg software.
1. Look at the bottom right of the following image. The #7 pin on the 74LS05 is where you connect the -Ve of your meter for all voltage measurements.
Now all the following pins refer to the 40-pin ZIF socket:
2. Do your test again, without a PIC in the big ZIF socket, measure the voltages on:
Pin 1, 3, 6, 16, 23, 24, 25
It would be best to present the results using a table to show different voltages when different action performs by the WinPicPro software. If WinPicProg has hardware check function, do a check and measure a set of results.
Do you know you have to place different PICs into different locations of the ZIF socket? Just checking. I steal the picture from a thread to help you out and I hope the owner wouldn't mind.