topic Re: PTN3460 reading from EXTERNAL EEPROM in Digital Signal Controllers

PTN3460 reading from EXTERNAL EEPROM

MaxxCO — Tue, 30 May 2023 13:20:39 GMT

Hello,
I need help with getting PTN3460BS_F6Y reading from external 24LC02 eeprom.
I am trying to transfer video from the pc dp to an LVDS panel that has RxO0, RxO1, RxO2,RxOCLK, RxO3 pairs respectively same for the even pairs. I USE 2 LANE DP AND WHEN THE DEV_CFG IS LOW THE PC DETECTS THE HARDWARE BUT THIS IS NOT WHAT I AM TRYING TO GET.

TESTMODE - LOW

CFG1 - LOW

CFG2 - HIGH

CFG3 - LOW

DEV_CFG - HIGH

CFG4 - HIGH

I HAVE NOT PROGRAMED ANYTHIG TO THE PTN3460 AND I AM NOT SURE IF I AM SUPPOSED TO UPDATE THE FIRMWARE BUT IT SIMPLY DOES NOT WORK. THE PC DOES NOT RECOGNIZE ANY HARDWARE ATTACHED TO IT.

IS THERE SOMETHING I AM MISSING HERE.

PS: PLEASE DO NOT REFFER TO ANY APP NOTES SUCH AS AN11128 AND SO ON, I HAVE THEM ALL.

Re: PTN3460 reading from EXTERNAL EEPROM

MaxxCO — Tue, 30 May 2023 13:31:32 GMT

A0, A1 AND A2 PINS OF THE MEMORY ARE CONNECTED TO GROUND, HOWEVER THE DATASHEET SAYS THEY ARE NOT USED .....

Re: PTN3460 reading from EXTERNAL EEPROM

diazmarin09 — Tue, 06 Jun 2023 22:06:55 GMT

Hello Maxx,

I hope all is great with you. Thank you for using the NXP communities.

Are you using the DPCD Tool? Could you please share your schematic?

Please review your email. I shared further information.

Regards,

David