AFE5805: how to set pga

Hello Fawn,

Can you confirm if you have written the initial commands through the AFE5805 GUI?

This step is used to adjust ADC input and output configuration. Therefore, TSW1400 can correctly capture data.

1. Set Address Byte(s) = 0 Data Byte(s) = 1. Click any space area to send command to AFE5805.

2. Set Address Byte(s) = 42 Data Byte(s) = 8081. Click any space area.

3. Set Address Byte(s) = 46 Data Byte(s) = 8208. Click any space area.

If you have already done the above, can you provide more details as to what happens when you change the PGA settings in the GUI?

Some screenshots of the error message (if any) will help.

Hello,Praveen

Thanks for your reply~

we don't have TSW1400 EVM~

We change the register by SPI interface~

And we found that before and after we change the register ,the wave doesn't change at all~

Hi Fawn,

First we will need to check if the SPI is working fine.
Can you enable the powerdown mode and check if the supply current is reduced?
Since you do not have the data capture card TSW1400EVM, how do you verify the ADC data from the AFE5805EVM?