[ML]

Hi Neeraj,

Thanks now it is working well :).

The SiP part on my development card (OSD32MP1-BRK) is OSD32MP157F but is it possible for me to replace the on-board SiP with another SiP – OSD32MP153C? Because I want to use OSD32MP153C but I only have this development card.

[ML]

Hi Neeraj

Can u help me try on your side the Debian image is it possible to write & readback from the EEPROM(in the SiP chip) on the OSD32Mp1-BRK development card? Many thanks!

[ML]

Thanks Neeraj, I am able to load in the debian image into a brand new SD card.

Write to EEPROM:

debian@localhost:~$ sudo echo -n -e ‘\xAB\xCD\xEF’ | sudo dd of=/sys/bus/i2c/devices/3-0050/eeprom bs=1 seek=16

Result:

3+0 records in

3+0 records out

3 bytes copied, 0.0414865 s, 0.1 kB/s

Read from EEPROM

debian@localhost:~$ sudo dd if=/sys/bus/i2c/devices/3-0050/eeprom bs=1 count=3 skip=16 2>/dev/null | hexdump -C

Result:

00000000  ff ff ff                                          |…|

00000003

Checking i2c status:

debian@localhost:~$ sudo i2cdetect -y 3

Result:

0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

00:                         — — — — — — — —

10: — — — — — — — — — — — — — — — —

20: — — — — — — — — — — — — — — — —

30: — — — UU — — — — — — — — — — — —

40: — — — — — — — — — — — — — — — —

50: UU — — — — — — — — — — — — — — —

60: — — — — — — — — — — — — — — — —

70: — — — — — — — —

 

I am still unable to write to the EEPROM at address 0x50 & strangely the i2C at this address is unavailable (UU) for use?

• This reply was modified 1 week, 4 days ago by ML.

[ML]

I downloaded the Debian image from the above link u provided using Etcher sw. But encountered the following Error: (0,h.requestMetaData) is not a function during programming of the image

Can advise what to be done?

Many tks

[ML]

Thanks Neeraj,

I did the following:

Write to EEPROM:

echo -n -e ‘\xAB\xCD\xEF’ | dd of=/sys/bus/i2c/devices/3-0050/eeprom bs=1 seek=16

Added delay

sleep 0.1  # Add a small delay to ensure write completion

Tried to read the EEPROM:

dd if=/sys/bus/i2c/devices/3-0050/eeprom bs=1 count=3 skip=16 2>/dev/null | hexdump -C

Result:

00000000  ff ff ff                                          |…|

00000003

I expected to see AB CD EF but did not. Can you advise me what went wrong?

• This reply was modified 2 weeks, 3 days ago by ML.

[ML]

I follow the steps listed here https://octavosystems.com/app_notes/osd32mp1-brk-getting-started/#trouble

But I am still unable to detect new network adapter called Remote NDIS Compatible Device though I have configured the boot switch to 101 and also saw the red LED blinking.

I cannot find this adapter in network connection or under Other devices in the Device Manager.

Can anyone advise me what can be done?

[ML]

HI Neeraj, thanks for the reply!

I am green horn in this area ;p so not quite sure what u meant by to access the EEPROM (in the device tree) via SYSFS.

What are the appropriate software platform I will need to install in order to do what u meant? Also how do I download the modification (done to the EEPROM) to my development board – OSD32MP1-BRK? Many thanks to u again!

[Author]

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