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Discussion Groups | MSP430 | Problem with MSP-FET430UIF at using SVS
The purpose of this group is to foster exchange of information on the Texas Instruments MSP430 family of microcontrollers and related tools. Everyone welcome, all levels of familiarity/expertise.
Problem with MSP-FET430UIF at using SVS - tegger60 - Sep 30 15:30:01 2009
Hi,
I am using a MSP-FET430UIF with a Rowley CrossWorks Complier / Debugger. I am using a MSP430F235 mcu. When I turn on the SVS and turn on the PORON bit in the SVSCTL, when I lower the voltage during testing a POR is never generated, but the UIF becomes disconnected from CrossStudio leaving me "blind" to what is happening with the MSP430. To make matters worse, if I set the VLDx bits in SVSCTL to the highest low-voltage setting (3.7V); as soon as I boot the board the UIF disconnects. I cannot reconnect the UIF to the board, meaning I cannot even modify the firmware that is now on the board. I was able to recover from this situation by dropping the voltage to the BOR level. At the BOR level I was able to reconnect the UIF and was then able to modify the firmware.
Has anyone else run into this situation. If so, is there anyway to ensure the UIF stays connected so that I can test SVS low-voltage scenarios?
Tom
------------------------------------
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I am using a MSP-FET430UIF with a Rowley CrossWorks Complier / Debugger. I am using a MSP430F235 mcu. When I turn on the SVS and turn on the PORON bit in the SVSCTL, when I lower the voltage during testing a POR is never generated, but the UIF becomes disconnected from CrossStudio leaving me "blind" to what is happening with the MSP430. To make matters worse, if I set the VLDx bits in SVSCTL to the highest low-voltage setting (3.7V); as soon as I boot the board the UIF disconnects. I cannot reconnect the UIF to the board, meaning I cannot even modify the firmware that is now on the board. I was able to recover from this situation by dropping the voltage to the BOR level. At the BOR level I was able to reconnect the UIF and was then able to modify the firmware.
Has anyone else run into this situation. If so, is there anyway to ensure the UIF stays connected so that I can test SVS low-voltage scenarios?
Tom
------------------------------------
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Re: Problem with MSP-FET430UIF at using SVS - old_cow_yellow - Sep 30 18:19:47 2009
Yes, I have seen someone in this group got into the same situation before. Search the old
msgs.
--- In m...@yahoogroups.com, "tegger60" wrote:
>
> Hi,
>
> I am using a MSP-FET430UIF with a Rowley CrossWorks Complier / Debugger. I am using a MSP430F235 mcu. When I turn on the SVS and turn on the PORON bit in the SVSCTL, when I lower the voltage during testing a POR is never generated, but the UIF becomes disconnected from CrossStudio leaving me "blind" to what is happening with the MSP430. To make matters worse, if I set the VLDx bits in SVSCTL to the highest low-voltage setting (3.7V); as soon as I boot the board the UIF disconnects. I cannot reconnect the UIF to the board, meaning I cannot even modify the firmware that is now on the board. I was able to recover from this situation by dropping the voltage to the BOR level. At the BOR level I was able to reconnect the UIF and was then able to modify the firmware.
>
> Has anyone else run into this situation. If so, is there anyway to ensure the UIF stays connected so that I can test SVS low-voltage scenarios?
>
> Tom
>
------------------------------------
(You need to be a member of msp430 -- send a blank email to msp430-subscribe@yahoogroups.com )
--- In m...@yahoogroups.com, "tegger60"
>
> Hi,
>
> I am using a MSP-FET430UIF with a Rowley CrossWorks Complier / Debugger. I am using a MSP430F235 mcu. When I turn on the SVS and turn on the PORON bit in the SVSCTL, when I lower the voltage during testing a POR is never generated, but the UIF becomes disconnected from CrossStudio leaving me "blind" to what is happening with the MSP430. To make matters worse, if I set the VLDx bits in SVSCTL to the highest low-voltage setting (3.7V); as soon as I boot the board the UIF disconnects. I cannot reconnect the UIF to the board, meaning I cannot even modify the firmware that is now on the board. I was able to recover from this situation by dropping the voltage to the BOR level. At the BOR level I was able to reconnect the UIF and was then able to modify the firmware.
>
> Has anyone else run into this situation. If so, is there anyway to ensure the UIF stays connected so that I can test SVS low-voltage scenarios?
>
> Tom
>
------------------------------------
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