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Discussion Groups | MSP430 | Re: MSP430 internal bit flips - how to deal with?

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.

Re: MSP430 internal bit flips - how to deal with? - old_cow_yellow - Jul 5 0:06:11 2008

This is a very general problem for any electronics in military and
space program. I think MSP430 family is not a good choice in this
respect. Years (~30?) ago, RCA made a CMOS 8-bit called 1802. I think
someone is still making it because it is radiation resistant. At
higher end, LEON is designed to be radiation resistant. It is an open
source design. Very old too.

--- In m...@yahoogroups.com, Hardy Griech wrote:
>
> Hi,
>
> during my current project the question was raised, how sensitive the
> MSP430 devices are to bit flips due to radation or EMI or other effects.
>
> Bit flips may occur in the different areas of the MSP430:
>
> 1. RAM
> 2. Special Function Registers (SFRs) like P2SEL
> 3. internal SFRs which cannot be addressed by firmware,
> e.g. internal JTAG registers
> 4. not identified yet
>
> In all areas bit flips are fatal for long running applications. Fatal
> in this case means
> 'application partly/completely stopped', 'application delivering wrong
> results'...
>
> So my questions are:
> - how do you deal with bit flips or are you completely ignoring them?
> - does anybody has further information or experience with this topic?
>
> Many thanks for any suggestion!
>
> Hardy
>

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