TOD and STOP2 on HCS08LL16

jckruege — Fri, 06 Nov 2009 05:23:42 GMT

I'm trying to use the HCS08LL16 to periodically wake from STOP2 using the time-of-day (TOD) module. It appears to sleep for 1 second the first time, but all remaining times only sleeps for about 200uS. Yes, I have port B bit 2 configured as an input and pullup enabled before entering STOP2. Yes, I check for PPDF after reset to determine if reset was due to wake from STOP2. Yes, I'm restoring port config before writing PPDACK.

I have this implemented and working on the QE128 (using RTC) , but cannot get to work on the LL16 (using TOD).

Anyone out there with an example or tips?

Re: TOD and STOP2 on HCS08LL16

jckruege — Sat, 07 Nov 2009 04:23:30 GMT

I figured it out...I had a damaged board (ESD?)

Tried on another board ... and it works.

Attached is stripped down Codewarrior V6.2 project including source that works.

Jeff

Project_2.zip

Message Edited by t.dowe on 2009-11-08 10:26 PM

topic Re: TOD and STOP2 on HCS08LL16 in 8-bit Microcontrollers

TOD and STOP2 on HCS08LL16

Re: TOD and STOP2 on HCS08LL16