Programming 16f876 on s4
Posted: 14 Nov 2011 12:36
Hi,
I'm having a spot of bother programming a pic 16f876 in an s4. After a burn it is reading full of zeros. A pretest reports code protect on. You get the same result if there is no device in the socket!
I've checked the signals on the PIC-16 adaptor and the 28 pin socket has nothing appearing on vpp, but strangly the 40 pin vpp goes to +11v?
I can programming a 16f877 with no problems and 18 pin parts. This is the first time I've used the 28 pin socket on the adapter. Am I missing something obvious?
Any help would be much appreciated.
Simon Willcox
I'm having a spot of bother programming a pic 16f876 in an s4. After a burn it is reading full of zeros. A pretest reports code protect on. You get the same result if there is no device in the socket!
I've checked the signals on the PIC-16 adaptor and the 28 pin socket has nothing appearing on vpp, but strangly the 40 pin vpp goes to +11v?
I can programming a 16f877 with no problems and 18 pin parts. This is the first time I've used the 28 pin socket on the adapter. Am I missing something obvious?
Any help would be much appreciated.
Simon Willcox