And C programming was going so well! Was running SPI1 interrupt set up as priority 3,1 and an external interrupt set up as priority 4,1. SPI wasn't getting serviced from the external interrupt routine, so moved SPI up to priority 5,1. Now I cannot get code into the board. Have I moved the priority level too high and are now interferring with USB coms and the bootstrap loader?by noddy - BV513
Ignore my last message. Its now compiling and downloading after I read one of your other posts and compiled the _2_mplab8 version. Thanks for your help.by noddy - BV513
Thanks for the quick turn around on the boot loader update. Unfortunately I find myself in the same situation. Have successfully downloaded basic and this still runs, then re-downloaded BC513_V2_c project 1 and the LED flashes again so great. However opened the project and without touching anything, recompiled and linked, and it said successful but it still won't download. Checked for the difby noddy - BV513
Tried 2 ways of getting C code running. 1) I was using the 1st of 4 examples provided on the web site to flash the LED. The code from the web site worked fine if downloaded to the PIC without touching the compiler. I went to recompile the code (without changing anything) to make sure I had a stable base, and it said it was successful, but when I loaded it to the PIC, it wouldn't run. (MPLAB Iby noddy - BV513