Hi ,
I am working over the IMX6 solo which is interfaced with serial NOR Flash. As per the Reference Manual , Table 8-1 ,
Serial Downloader mode can be used for firmware flashing. But Serial Downloader mode requires serial USB. In my target board USB board is not populated. My questions are as follows :
1. Can I flash uboot using debug UART ? if yes then please explain how .
2 . In which mode IMX6 will boot up to write the NOR Flash using UART.
Please suggest.
Regards,
Aditya Nagal
Hello Aditya,
>>1. Can I flash uboot using debug UART ? if yes then please explain how .
No, you can't.
>>2 . In which mode IMX6 will boot up to write the NOR Flash using UART.
I.MX6 doesn't support downloading uboot by UART port.
There are 2 ways to write u-boot to your nor flash:
(1) writing u-boot to NOR Flash by USB OTG port.
You had better populate USB OTG connector to your board, it is very important, I don't know why not populate it.
(2) Using SD card to boot your system, then write u-boot image to Nor Flash.
Hope above advice can help you!
Best Regards,
Weidong