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DS125DF111EVM: About DS125DF111EVM Channels

Bear L

Prodigy 220 points

Part Number: DS125DF111EVM

Hi

I have an other question.

1. I configure the channel in the same way,Channel A is worked,Why the Channel B is not Work??

2. Can Channel A/B work at the same time and work at different frequencies? Regards,

over 4 years ago

0 Nasser Mohammadi over 4 years ago

TI__Guru* 88905 points

Greetings,

1). Please go to low level page and make sure reg 0x64 is set to 0xFF. Once this is done, please click on Reset CDR button of the GUI.Register 0x60 through 0x64 values of channel B should be the same as the channel A. Additionally make sure reg 0x64 of both channels should be set to 0xFF.

2). Yes channel A & B can work independently and at the different data rates.

Regards,,nasser

0 Bear L over 4 years ago in reply to Nasser Mohammadi

Prodigy 220 points

Greetings,

I've Checked Reg 0x64 is set to 0xFF and Reset CDR,channel B doesn't work,also; What other configuration errors are possible?

Regards

0 Lee Sledjeski over 4 years ago in reply to Bear L

TI__Mastermind 43795 points

Hi,

If you switch the input cables A->B and B->A, does Channel A still work and Channel B does not?

Regards,

Lee

0 Bear L over 4 years ago in reply to Lee Sledjeski

Prodigy 220 points

Yes.

I have Checked it,Switch input cables A->B,Channel B does not work ;But Switch input cables B->A,Channel A still work;

Regards

0 Lee Sledjeski over 4 years ago in reply to Bear L

TI__Mastermind 43795 points

Hi,

It looks like the TX_DIS pin is pulled high in your picture.

Set this pin to pull low by moving the shorting jumper from J6 to J61. Hopefully this resolves the Channel B issue.

Regards,

Lee