How to separate math routines?

[E_Blue]

I'm not receiving warnings about math yet, I'm asking before implement it to know hot to proceed.

This are all the warning for the current version

>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (ReadByteEE)
>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (FillBufferEE)
>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (@PSTRINGC_1801)
>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (usb_token_reset)
>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (SaveTime)
>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (usb_cdc_flush_tx_buffer)
>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (usb_tbe)
>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (usb_cdc_get_discard)
>>> Warning 216 "GPRS_2.c" Line 11917(1,2): Interrupts disabled during call to prevent re-entrancy: (CountData)

ReadByteEE, FillBufferEE,,SaveTime and CountData are subroutines and functions maked by me, the rest are from CCS USB library.
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Electric Blue

[Ttelmah]

Yes. These routines are basically 'initialisation'. So (for instance) the routine that clears the buffer is only called in the main code, when USB first wakes. Hence there is no loss really in having interrupts disabled during it. It's used in the interrupts when a bus reset has to take place. You can simply duplicate it if required, but it gains nothing to do so.

I'd worry about anything involving 'EE' in an interrupt though. Given the milliseconds most types of electrically erasable memory take, that has alarm bells ringing....