AMC7834EVM: Low Level Configuration

Kazuki Itoh

Genius 10840 points

Part Number: AMC7834EVM

Tool/software:

Hi team,

My customer is evaluating AMC7834EVM.

However, if conducting "Read ALL", the all registers are shown as 0xFFFF.

Could you please help to address this issue?

The evaluation set up is below.

PC - SDM-USB-DIG - AMC7834EVM

Power supply:

VDD: 5.0V
VCC: NC
VSS: NC
IDVDD: 3.3V

Best regards,

Kazuki Itoh

over 1 year ago

+1 Erin Bowrie over 1 year ago

TI__Genius 10650 points

Hi Kazuki-san,

This device might require the VCC and VSS supplies to be powered for SPI to work. Please connect VCC to 5V and VSS to GND and try again. I will need to order a board to test it myself.

Thanks,
Erin

+1 Erin Bowrie over 1 year ago in reply to Erin Bowrie

TI__Genius 10650 points

Hi Kazuki-san,

I've confirmed with the designer that at least VCC *or* VSS needs to be powered in order to get SDO outputs. Please try the previous suggestion and see if that works for you.

Thanks,
Erin

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AMC7834EVM: Low Level Configuration