Other Parts Discussed in Thread: TMS320F28379D
Hello,
I'm tring to interface MPU9-150 sensor hub boost with Delfino TMS320F28379D launchpad through I2C protocol. I configured SCL and SDA pins to use internal pullups then
when i tried to write data to MPU9-150 sensor, i've noticed that at each 9th clock cycle; the MPU sensor doesn't send ACK and the I2C NACK flag is always '1'.
Then when i tried to track the signal by external oscilloscope. Once i connected the oscilloscope probes to SCL pin,the communication done successfully. and when i moved the oscilloscope probe
out, it didn't work again.
I think it's the same problem here.
so my questions are :
-What is the problem on SCL line?
-Is that the right solution to this problem?
-Are they any alternative solutions instead of using resistance? and are these the correct values to the resistances ?
thanks,
mohamed.
