PIC16F1454 Connecting To USB Doesn't Work

[Demon]

Is there anything of value over there:

https://support.melabs.com/forum/dev...ammer#post2077


Are you using the ZIF adapter?
(post #2)

[Demon]

And check out post 4 about the epic programmer files.

(I see you have EPC in you image.)

[rsocor01]

Hmm, I made it work for a flashing LED. This is weird, you need to power the 16F1454 chip with 5V. It won't get programmed if I power it with 3V. I have never seen this for a regular 16F chip.

Yes, that post from the forum was very helpful. He had some issues programming the chip too.

[Demon]

Like I said, mutant PICs.
😁

[Ioannis]

Why Microchip do such stupid things, like two sets of programming pins for low or high voltage?

Oh dear...

Ioannis

[rsocor01]

Why Microchip do such stupid things, like two sets of programming pins for low or high voltage?

Oh dear...

Ioannis

It doesn't make any sense to me either.

[rsocor01]

Bad news, I got this response from Melabs.

We tried many years ago, but failed to make the USB commands work in a useful way. In any case there is no further development planned for PBP.

The 18F25K50 is less expensive than the 18F4550, but not as cheap as the 16F1454.

I wonder if they are going to stop selling and supporting PBP after they said "there is no further development planned for PBP". We use their U2 programmers and software a lot. I responded to their email asking if they will keep supporting PBP.