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+--- Thread: 18F4520 problem (/showthread.php?tid=2331)
18F4520 problem - seen - 2014-11-26
Hello,
I'm trying to adapt the ds30loader for my PIC 18F4520 20MHz ext.
I compiled the firmware 18F with MPLAB 8.92, as the "firmware manual" says.
Then I burned the .HEX.
But when i chek for bl i always get de same message (with reset on the PIC):
Creating port: Prolific USB-to-Serial Comm Port (COM3)
Opening port Prolific USB-to-Serial Comm Port (COM3)@9600
Searching for bl . . . . . . . . . . . . . . . . . . . . . timed out
Closing port
I would appreciate very much if someone could help me?
Thanks.
Enzo
RE: 18F4520 problem - Mikael Gustavsson - 2014-11-27
Hi,
As far as I can see everything looks good. Is the uart communication working in your application?
RE: 18F4520 problem - seen - 2014-11-27
Hello,
yes the uart communication is working in my application.
I have the same problem with a PIC 18F452.
But if i try with a 16F887 the bl works good.
Thanks for your help.
Enzo
RE: 18F4520 problem - Mikael Gustavsson - 2014-11-28
Please post the application or relevant parts of it, config bits, uart init, i/o init etc..
RE: 18F4520 problem - seen - 2014-12-08
Hello,
I change the baudrate to 230400 instead of 9600 and now my modified firmware works well.
I connect the PIC to the PC with a USB/RS232 cable + a RS232/TTL cable. I think it is not the best solution.
I'll buy a USB/TTL to try.
Regards,
Enzo