Hi.
I have been made a source code with NXP PCB and my company's new PCB was received last week.
S I downloaded a source code which was activated well on NXP PCB into new PCB but there was a problem.
■ Situation : during debuging, source code is stopped at 'DefaultISR'
■ Difference between NXP PCB to my new PCB : XTAL
- NXP PCB : 8MHz
- my company's new PCB : 40MHz
※ refer to Device feature summary of datasheet(51page)
■ review
1. System OSC Clock : change from 8MHz to 40MHz
1) NXP PCB : after changing from 8MHz to 4MHz, I confirmed the source code was stopped at 'DefaultISR' during debugging.
2) my company's new PCB : happened same situation. The source code was stopped at 'DefaultISR'
2. External Reference Select : change from 'External crystal oscillator' to 'External clock source'
1) my company's new PCB : The source code was stopped at 'DefaultISR'
3. System OSC Range Select : change from Medium to High
1) my company's new PCB : The source code was stopped at 'DefaultISR'
■ Component Inspector : before chagne(activation is ok)
■ Component Inspector : after(the source code is stopped at 'DefaultISR')
■ Question : What should I do if I use 40MHz?
Hi,
Probably related dividers/multipliers are set incorrectly. Check the warning messages. My configuration for 40MHz crystal oscillator is on pictures bellow.
Jiri
