8-bit Microcontrollers中的主题 Code runs in debugger but hanging when programmed

Code runs in debugger but hanging when programmed

New_to_HC08 — Thu, 17 Jun 2010 23:10:14 GMT

Hardware: MS9SO8GT60 with 32.768 kHZ xtal

programmer: Cyclone Pro HC08 - HCS08

IDE: Freescale Codewarrior 5.9.0

I realize there is any one of multiple issues that could be causing my code to lock up. But when running through the debugger, (Cyclone Pro) it works fine, key interrupts, and writing to LCD display, but when I program the board, and run the same code, stand alone, it works for a few minutes, and then appears to get stuck in a loop.

I have a fast loop running, when its awake, to write to the display, and a slower one for asleep, and it'll 'hang' anywhere from accepting key inputs one minute and then not the next, or halfway through writing out to the screen.

I realise this is hard to debug, but if someone has encountered this, and a list of checkpoints I could go through.

(bearing in mind I dont own an oscilloscope!)

Cheers

Re: Code runs in debugger but hanging when programmed

peg — Fri, 18 Jun 2010 05:22:00 GMT

Hello,

Try turning of memory display windows in the debugger. The reading of registers by the debugger can make faulty code appear to run correctly.

Also try to "hot connect" to the hung device.

Re: Code runs in debugger but hanging when programmed

ThaManJD — Sat, 19 Jun 2010 19:43:02 GMT

Failing all other sensible suggestions, I'd be interested to see if the problem persists using the internal reference clock instead of the crystal as your clock source.