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When does write_eeprom() return? [SOLVED]

 
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newguy



Joined: 24 Jun 2004
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When does write_eeprom() return? [SOLVED]
PostPosted: Thu Oct 26, 2017 2:50 pm     Reply with quote

Stupid question, but compiler's help reference is a little unclear to me. Does the write_eeprom() function return immediately, which means that the actual (slow) write to the PIC's internal EEPROM will complete at some point in the future, or does write_eeprom() block until the write has completed (several ms later)?

Last edited by newguy on Thu Oct 26, 2017 3:16 pm; edited 1 time in total
temtronic



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PostPosted: Thu Oct 26, 2017 3:00 pm     Reply with quote

Easiest way to figure out is cut a small program,compile and dump the listing....
newguy



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PostPosted: Thu Oct 26, 2017 3:17 pm     Reply with quote

You're right - that was easy.

For anyone curious, it blocks until the write is complete.
temtronic



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PostPosted: Thu Oct 26, 2017 4:05 pm     Reply with quote

That would be my 'assumption' but after 'assuming' my forklift wouldn't get stuck in 2 inches of mud and that the distributor cap of my tractor was fine.....I'm DONE with assuming things.....after 6 hrs of blood, sweat and tears I'm only left with a silly PC using W7 that doesn't wakep to wiggling mouse...I should have stayed with XP...

Some days it doesn't pay to get out of bed....

Glad you took the time and SAW what was going on....first hand knowledge is powerful.

Jay
Ttelmah



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PostPosted: Fri Oct 27, 2017 12:43 pm     Reply with quote

#device WRITE_EEPROM=ASYNC

Will set it to not wait. Instead it'll test at the start of the write that the EEPROM is not busy writing.
By default it waits to complete as you have found.
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