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MSP430G2213: Datasheet says no ADC, but debugger says otherwise. Hmmm...

Andrew DeWeerd
Prodigy 100 points
Part Number: MSP430G2213
Other Parts Discussed in Thread: MSP430G2233

Used it all day yesterday, looking at the debugger and getting exactly the ADC returns I expected on the VCC/2 channel (INCH_11).  Datasheet for '2213 indicates it does not contain the ADC peripheral - well, it says "0 Channels" and the ADC block is missing from the graphical chip layout.  

I wonder if the module is actually in there, but the external input channels on the GPIO are not connected?  

  • 0
    TI__Mastermind 29105 points

    Hello Andrew,

    What do you mean that it's shown in the debugger?  

    According to the datasheet, the device has a comparator that can be used for a "slope" ADC function, but I that MSP430G2213 does not have a functional ADC. I have no idea if the module is still technically on the silicon, but if it is, then it's definitely not being tested after manufacturing and there would be no way to gauruntee it's performance.  

    If you need an ADC in this family, please consider the MSP430G2233.  

    Thanks,

    JD

  • 0 in reply to JD Crutchfield
    Prodigy 100 points

    Regarding the debugger, I can breakpoint after the ADC conversion and see the resulting transfer from ADC10MEM.  It's certainly getting a valid value, and the expected one (mathematically speaking).  The ADC is clearly present.  I've been working with the MSP's for 25 yrs.  (thank you Ken Hines).

    I'm telling you, this ADC is active.  It might not be tested in my silicon or guaranteed, but it's working as expected from the internal VCC/2 channel.  

  • 0 in reply to Andrew DeWeerd
    Prodigy 100 points

    Funny, I did move from the '2233 because we determined that we did not need the ADC.  But there were issues (haha) and here were are again.  

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