LTC5594 eval board corrupted EEPROM

Hi,

If you are reading the correct hardware ID from another eval board. You can use the attached program to burn new hardware IDs. I have added a new line for DC2654A to the customer.xml file but I am not sure it is the correct one. 
You can use the attached software as follow.

1. Connect working eval board via USB cable
2. Run demster3.exe and read ID.
3. Copy the correct Hardware ID from another DC2654A evaluation board. 
4. Take note of that id
5. Open the customer.xml file with notepad
6. Add the noted hardware id to the last line
7. Save and close the customer.xml file
8. connect eval board that needs hardware id update
9. Open demster2.exe
10. Select added id from dropdown menu
11. Burn new id. 
    
    Demster.zip
    
    
    

Hi, Quikview can connect the DC2645A but looks like it's not communicating correctly. Now DC590B cannot even communicate to DC2248A-A(LTC6951) Evaluation Board correctly. It's working before. Please advise!

Thanks,

Hi,

Sorry for the late reply. 

By any chance, have you ever changed the hardware ID of DC2248A-A with Demster.exe?

When you first run the LTC6951Wizard.exe, there is an error log that says something like the below. Can you screenshot that log and share it?

Sample error log on startup of application:

Best Regards,
Emrecan

Hi, Emrecan,

I didn't change hardware ID of DC2248A-A. DC590B can read correct IDs from both DC2248A-A and DC2645A. 

Yes. I got the pop-up window when launching LTC6951 Wizard.

the communication with both DC2248A-A and DC2645A are not working, I mean reading and writing registers. How to fix this? By the way, what is the log?

Best Regards,

Jun

Hi, Emrecan,

I didn't change hardware ID of DC2248A-A. DC590B can read correct IDs from both DC2248A-A and DC2645A. 

Yes. I got the pop-up window when launching LTC6951 Wizard.

the communication with both DC2248A-A and DC2645A are not working, I mean reading and writing registers. How to fix this? By the way, what is the log?

Best Regards,

Jun

Hi Jun,

I have a DC2248A-A board on my hand and my recommendations will be based on this board. 

Can you check jumper on the marked area of DC590B is connected to 3.3V?  And Can you send a photo of your setup to inspect whether there is a difference from my setup?

Log says that the controller can read the EEPROM but not communicate with the chip. Can you measure the following pins for supply voltages? Can you also measure voltages on SPI pins on the DC2248A-A?

After you ensure the voltage and current values are correct and there is no problem with an evaluation board,  you can trace SPI lines via oscilloscope whether pins are toggling for communication. You can use INVSTAT register bitfield for testing as it will give you visual clues with LED on the board. 

Best Regards,
Emrecan