68300

Charlie
Thanks for your response.
The scenario is like this.I am interfacing the SEEPROM with QSPI of
M68332.The application calls for a Timer Interrupt occurring every 2 ms.In
such a situation,if there is a need to write into the SEEPROM and the write
takes more than 2ms,How does M68332 handle this?
Is there a possibilty of doing a part of the QSPI operation, servicing the
timer interrupt and then continuing the rest of the QSPI operation?If yes
,how do we go about this?
Kindly respond

Sudha

-----Original Message-----
From: Melear Charles-rdph40 [mailto:charles.melear@...]
Sent: Tuesday, September 02, 2003 7:06 PM
To: '68300@yahoogroups.com'
Subject: RE: [68300] M68332


Sudha,

This is a hard question to answer because I am not sure what is going on.
However, I will take a stab at it.

If the QSPI is in the middle of a transmission, nothing will change because
another module caused an interrupt.  Once the QSPI is set up and a
transmission is started, the transmission will go until it is completed.  In
other words, if the CONT mode is NOT selected and the transmission starts,
the QSPI will continue sending data until the End Queue Pointer is reached.

Why do you think that an interrupt will modify the QSPI behavior.  If I
haven't answered your question, post me some more info and I will try again.

Charlie

-----Original Message-----
From: sudha srinivasan [mailto:sudha_sri@...]
Sent: Monday, September 01, 2003 6:30 AM
To: 68300@yahoogroups.com
Subject: [68300] M68332


Dear all,
Please help me with the following info :

If QSPI is enabled and if an external interrupt or a timer interrupt occurs,
the program control is transferred to the SIM module.

In this context, will the QSPI operation be resumed ,after servicing the
ISR.(Please note that the QSPI is not in interrupt mode).
Will the SCK from QSPI to the serial device ,stop as soon as the interrupt
is encountered?



Thanks
Sudha



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