VOLVO P31476261 UPA CONNECTION HELP NEEDED

[slavax]

I need some help with Volvo P31476261 Module connection.

I have CPT RH850 activation however I do not have time to buy the ISP Adapter. I am trying to use UPA without success.

I translated the CPT diagram to UPA connection with Power Supply (see below). But when I turn 12V and try to connect, I am getting error:

"Vdd/Vcc Out of Range
Reading: 1 Errors Found Device: R7F701330 Range: 0 - FFFF"

Please help if you read this module in the past with UPA. Thank you.

{ P.S. I already tried to swap TX with RX. }

844024 844023


CPT CPU UPA
__________________
CPT1 RESET UPA7
CPT2 Vss UPA5
CPT5 Tx UPA2
CPT6 Rx UPA3
CPT7 MD0 UPA8
CPT8 MD1 UPA6
CPT9 Vcc UPA9

[mkopytekchi89]

I am able to read the code flash only and it verifies without errors. I am unsure if the data flash is somewhere in there but try to read the code flash. I have oscillator set to 16000kHZ other settings don't work for me and voltage at 3.3v. It is wierd that i can read teh code flash and not the data flash.

[slavax]

Thank you for your help. I am able to read Code flash as well with external 12V power supply but when I try to read Data Flash I am getting an error and it will not read it.

[km666]

CPT9 - GND
CPT2 - Vout

[vwdamian77]

Hi,
how did you solve this problem? I have the same thing.

[vwdamian77]

Thank you for your help. I am able to read Code flash as well with external 12V power supply but when I try to read Data Flash I am getting an error and it will not read it.
Hi,

how did you solve this problem? I have the same thing.

[fuzz1]

Hi,
how did you solve this problem? I have the same thing.

Check the post form km666 slavax seems to have made a mistake in connecting CPT pin 9 and cpt pin 2.

CPT pin 2 should be Vcc and not ground and CPT pin 9 should be ground

[AutomotrizProg]

Hello, add to the topic, the module has certain anti-write protected places.
I wonder which section to write to...
Some equipment such as Gct, CPT already has this configuration, but there is no information for oneself to implement it.
example: for us we have Upa-s.
I have also read that this Renesas Rh850 in particular has a configuration of reading and writing bytes, something like the 8byte 16 byte eeprom...
Note that this Module requires a certain writing speed...
But I wonder where this question is added or placed?...


The Upa-s in this case I don't see: Bytes: Range: xxx


Remember, this MCU must be erased before writing and you can kill a board, airbag, etc.