Hi,
In line with my other posts, we've been tracking down instability in the CC3120MOD devices and the SL driver.
Our CC3120MOD devices have sp_3.11.1.0_2.0.0.0_2.2.0.6 on them.
On one of our designs we have a logic analyser setup to monitor the comms and capture any fatal driver events.
The two attached logic capture files show:
TP_4 : A pulse when SimpleLinkFatalErrorEventHandler() is called.
TP_6: A pulse to indicate when driver.c lines ~2120 when the driver is trying to "Read 8 bytes (protocol aligned) - expected to be the sync pattern"
SPI: As normal
Other signals : Not Used
Note: The capture is triggered on TP4 and therefore all data is captured prior to this, not after this event.
By looking at the data, you can quite clearly see that the CC3120MOD device DOES NOT return the sync word.
I've been pulling my hair out over the SL driver, but maybe the hardware contributes to it.? Its very clear the CC3120MODA returns data, but no SYNC data.!
Can someone from TI please look over the files and advise.
Thanks.