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  Topic: preemptive Multitasking
Ted Ems

Replies: 5
Views: 8508

PostForum: General CCS C Discussion   Posted: Wed Jul 12, 2006 7:36 pm   Subject: Preemptive multitasking
PCM programmer
Thats exactly the way i am getting around this problem. Where did you find the information about the scratch area and when and what uses those areas?


Asmallri
You may be right ...
  Topic: Preemptive multitasking
Ted Ems

Replies: 3
Views: 12233

PostForum: General CCS C Discussion   Posted: Wed Jul 12, 2006 7:21 pm   Subject: preemptive multitasking
Dave
The retfie inserted by the ccs compiler is actually a fast interrupt return. This uses those shadow registers for the fast stack and replaces the w and bsr registers. The return must return th ...
  Topic: preemptive Multitasking
Ted Ems

Replies: 5
Views: 8508

PostForum: General CCS C Discussion   Posted: Wed Jul 12, 2006 8:29 am   Subject: preemptive Multitasking
The instruction bit_test(a,b) uses scratch area in ram. Can that area be determined at compile time. Or in a multitasking environment can an area be reserved for scratch for those instructions.


t ...
  Topic: Preemptive multitasking
Ted Ems

Replies: 3
Views: 12233

PostForum: General CCS C Discussion   Posted: Tue Jul 11, 2006 12:26 pm   Subject: Preemptive multitasking
If this program is ran the instruction movff tcb_temp.strstkptr,stkptr
causes a reset condition. Can anyone help in determining what causes this. Any help would be greatly appreciated.
#include < ...
  Topic: structures and pointers again
Ted Ems

Replies: 6
Views: 8323

PostForum: General CCS C Discussion   Posted: Wed May 17, 2006 8:24 am   Subject: structures and pointers again
I've looked at this code off and on for a couple days. Did not even occur to me that the declaration was in the wrong place.


Thanks for all the help
  Topic: structures and pointers again
Ted Ems

Replies: 6
Views: 8323

PostForum: General CCS C Discussion   Posted: Wed May 17, 2006 5:38 am   Subject: pointers and structures
Mark
The compiler returns with an error message saying "Function definition different from previous". Got any suggestions
  Topic: structures and pointers again
Ted Ems

Replies: 6
Views: 8323

PostForum: General CCS C Discussion   Posted: Tue May 16, 2006 3:17 pm   Subject: structures and pointers again
After looking at all the forum questions and answers i'm still a little unclear what goes where. The code below has an array of structures ( data_array) and a single structure ( temp_data ). The send_ ...
  Topic: External EEPROMS
Ted Ems

Replies: 1
Views: 9331

PostForum: General CCS C Discussion   Posted: Tue Feb 10, 2004 12:08 pm   Subject: external eeproms
Simple problem!! I believe this was posted before. You must not have the SETUP_SPI(FALSE) in your program.
  Topic: External EEPROMS
Ted Ems

Replies: 1
Views: 9331

PostForum: General CCS C Discussion   Posted: Tue Feb 10, 2004 11:34 am   Subject: External EEPROMS
I'm using a 18f6620 and the hardware I2C. The eeprom is a 24c65 with the pullups on sda and scl. What i've found is that using the routines in the 24c65 library the 6620 hangs when it enters the i2c_s ...
 
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