writing to eeprom and interrupts ...

[gpsmikey]

After much snooping, I have a question on writing to eeprom and interrupts. In his examples, Ttelmah shows disabling the interrupts before the actual write then re-enabling (if they were enabled to start with) them again after the write operation has completed. However, in reading in the CCS compiler manual for version 4 (pg 99), it talks about the
#device WRITE_EEPROM=NOINT
and says "Allows interrupts to occur while the write_eeprom() ..." which implies to me that they are already disabling interrupts in the write routine. Anybody have any experience on this or am I missing something ? (yes, I did see in another post about the recommendation to disable interrupts during writes and the reasoning for it). Is it still necessary for me to disable them during my write routine or is CCS handling that for us now ?

thanks !
mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

[Ttelmah]

The option, postdates my code (by a lot - that write/read routine, was originally coded with an early V3 compile).
There are lots of CCS options like this, that have slowly been added to make things work right. It is up to you, whether you prefer to use their stuff, or ensure things are coded the way you want, with stuff you can see....

Best Wishes

[gpsmikey]

OK, thanks Ttelmah - I was just trying to figure out if we were dealing with the "department of redundancy department" or if it had evolved with the current code(back in version 2.x that I originally had, you did it all yourself).

What do you use these days with the current compiler version for your eeprom writes ? (I understand the concern for what goes on behind the curtain)

mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

[Ttelmah]

I use what I posted. I trust CCS to do this as little as I trust some businessmen....

Best Wishes

[bkamen]

[gpsmikey]

OK, thanks folks - I will use Ttelmah's examples and not worry about the "man behind the curtain" in this case (contrary to what my wife says, I can be trained ! )

mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3