ADC32RF45: Channel A work only

user6006318

Prodigy 30 points

Part Number: ADC32RF45

Dears:

I only want to use Channel A，but when I PD CHB，EVM Board can not linked with FPGA，is it possible to use only Channel A?

over 4 years ago

0 Jim Brinkhurst1 over 4 years ago

TI__Mastermind 43950 points

Hello
I have notified the ADC32RF45 expert regarding your question.
He will provide a more detailed response soon.
Best regards,
Jim B

0 Vijayendra Varma Siddamsetty over 4 years ago in reply to Jim Brinkhurst1

TI__Genius 10505 points

Hi user,

It is possible to use only channel A.
Are you able to link up and capture ADC output data when both channels are turned on and losing link when you PDN chB?
Can you send the SPI writes you are using to PDN chB?

Regard,
Vijay

0 user6006318 over 4 years ago in reply to Vijayendra Varma Siddamsetty

Prodigy 30 points

Vijay

Thanks for you reply,yes,I am able to link up and capture data but when I PDN chB，link is breaking.

I am using ADC32RF45 EVM Board and PDN chB from EVM GUI.

0 Vijayendra Varma Siddamsetty over 4 years ago in reply to user6006318

TI__Genius 10505 points

Hi user,

The TSW capture card is currently programmed to look for valid JESD data on all 8 JESD lanes from ADC32RF45. When PDN chB is selected, only the top four lanes (lanes that carry chA output) will be active. So configuration file for TSW card has to be modified. Please follow the below steps to achieve this.

Program both ADC32Rf45EVM and TSW capture card as described in the user's guide.
If you are using TSW14J56 rev D capture card, copy the attached 'ADC32RF45_LMF_82820_only_chA.ini' to 'C:\Program Files (x86)\Texas Instruments\High Speed Data Converter Pro\14J56revD Details\ADC files' in your PC.
In HSDC pro, click on Instrument options --> Disconnect from the Board. Connect to board again and select 'ADC32RF45_LMF_82820_only_chA' instead of 'ADC32RF45_LMF_82820'
Assert PDN chB En and PDN chB in ADC configuration tab in ADC32RFxx tab in GUI.
In HSDC pro, click on Instrument options --> Reset board.
Click on 'Capture' to capture data from chA

ADC32RF45_LMF_82820_only_chA.ini

Regards,
Vijay

0 Vijayendra Varma Siddamsetty over 4 years ago in reply to Vijayendra Varma Siddamsetty

TI__Genius 10505 points

Hi user,

I'm closing this post due to inactivity. If you still need my help, please open a new e2e post.

Regards,

Vijay

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ADC32RF45: Channel A work only