Hello,
on WP7702 got i2c stop working with errors like this (see log for complete)
[ 280.032218] i2c-msm-v2 78b8000.i2c: BUS ERROR:noisy bus/unexpected start/stop tag: msgs(n:1 cur:0 tx) bc(rx:0 tx:2) mode:FIFO slv_addr:0x3a MSTR_STS:0x001121c4 OPER:0x00000080
Here is my device details:
Device: WP7702
IMEI: 352653090151689
IMEISV: 6
FSN: VU911670041510
Firmware Version: SWI9X06Y_02.36.06.00 63d944 jenkins 2020/12/10 19:12:28
Bootloader Version: SWI9X06Y_02.36.06.00 63d944 jenkins 2020/12/10 19:12:28
MCU Version: 002.015
PRI Part Number (PN): 9907365
PRI Revision: 001.006
Carrier PRI Name: GENERIC
Carrier PRI Revision: 001.071_001
SKU: 1103530
Last Reset Cause: Power Down
Resets Count: Expected: 621 Unexpected: 1
My question are…
1)How to avoid?
2)How to recover once i2c is in error?
My app works using accelerometer connected to i2c bus and when this errors start my whole app become unresponsive.
Regards,
Gianmaria
log.rtf (9.5 KB)