At 11:02 3/09/99 -0400, you wrote:



Make sure the LVP pin is help LOW on your target board. It is pin 36 on the
40-pin dip parts but you will have to look it up for your SMD part. Chances
are this will see you right.


-Jim


>
>
>At 02:18 PM 8/6/99 -0700, you wrote:
>>Just a quick note in case this jogs anyone's memory:
>>
>>I'm trying to program a PIC16F877 on my board, it's a TQFP package, I
>>have a 5X2 pin header for programming, identical setup to my last project
>>using a 16F84 (jumpered for operation).
>>
>>I built a programming cable with a 40 pin socket on one end and a 5X1
>>plug for the header on the other, I'm using a Picstart+. Again, this is
>>the same way I did it for the 16f84.
>>
>>16F877s in a DIP package program just fine in the Picstart, but when I
>>plug in the cable and plug that into a board I can't get it to program, I
>>get various errors, including "Cannot Transmit", "Cannot Receive", just
>>plain "Failure" in the program/verify window, and occasionally something
>>like "Command 8F not echoed properly (F8)".
>>
>>Does anyone have any clue what might be wrong? Or suggestions on what to
>>look for? The cable checks out fine with the ohmmeter, it's about 8
>>inches long and shielded, so should be electrically fine. I'm stumped.
>>
>>Dave Johnson
>>
>>
>Larry G. Nelson Sr.
>mailto:L.Nelson@ieee.org
>http://www.ultranet.com/~nr
>
Regards,

Jim Robertson
NEWFOUND ELECTRONICS
________________________________________
Email: newfound@pipeline.com.au
http://www.new-elect.com
MPLAB compatible PIC programmers.
________________________________________