Difference between revisions of "Thread:Talk:R-Car/Boards/Yocto-Gen3/I2C errors appeared with multiple usb devices/reply (2)"

From eLinux.org
Jump to: navigation, search
 
m
Line 1: Line 1:
 +
 
As a result of our confirmation again, it can be reproduced, even if the USB device is not connected.
 
As a result of our confirmation again, it can be reproduced, even if the USB device is not connected.
 
Let me share the reproduction the scenario below.
 
Let me share the reproduction the scenario below.

Revision as of 06:07, 1 April 2019

As a result of our confirmation again, it can be reproduced, even if the USB device is not connected. Let me share the reproduction the scenario below. In addition, I used another board butI2C error is still reproduced.

[ Reproduce environment ] - Renesas bsp 3.15 - Rcar M3 StarterKit + KF-M06 - CMOS Camera OV5642 

 https://
    www.aliexpress.com/item/OV5642-5-Million-High-Sensitivity-Camera-Module-Image-Sensor-Module-Manual-Fine-tuning-with-JPEG-Interface/32909308847.html
 Connected CMOS Camera to CN 29 on KF-M06.

- capture command 

 Customized based on V4L2 video capture example in here.
 https://
    linuxtv.org/downloads/v4l-dvb-apis-new/uapi/v4l/capture.c.html
 please see the attached file.
 
 # capture -d /dev/video0 -F -f rgb32 -L 0 -T 0 -W 12800 -H 720 -c 1000 -t 60 -z

[pattern1] [ 1491.549362] i2c-rcar e66d8000.i2c: error -11 : f

[pattern2] [ 1443.614690] i2c-rcar e66d8000.i2c: error -110 : 3

When capture command was executed, I2C bus error occurs probability as below. pattern1: 3/10. pattern2: 4/10.

Your feedback would be welcome. Thanks

Retrieved from "https://elinux.org/index.php?title=Thread:Talk:R-Car/Boards/Yocto-Gen3/I2C_errors_appeared_with_multiple_usb_devices/reply_(2)&oldid=488516"