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Nick Alexeev
Nick Alexeev
5:02 AM
3
Q: i2c bus hangs in master RPi access to MSP430G uC ~1 in 1000 accesses

JoeM... resetting the MSP430 clears the hung state. I've slowed down the i2c clock freq, beefed up the PSupply, changed pull-up resistors - no change. However I made the "errors" increase significantly by busying the ARM with 2 calculation-intensive programs. I use Python in RPi, using smbus, SMBUS a...

i2c
 
Shalvenay
Shalvenay
@NickAlexeev definitely a weird one! I'd love to see what scoping the I2C bus yields for them
(I have neither a MSP nor a R.Pi to try that with, or else I'd rig up a test for that)
probably would need scope shots to be a truly good migration candidate tho
 

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