ADC5140EVM-PDK:

user6547614

Intellectual 340 points

Part Number: ADC5140EVM-PDK

hi,sir

For the above test path, the IIS output of ADC5140 is master and synchronous clock data is sent to AP.

but found the board IIS pin ,have no waveform,i think ,there is ADC5140 config wrong??

please help me check??

clock moniter frame clk not supported,

over 3 years ago

0 Collin Wells over 3 years ago

TI__Guru 62085 points

Hello,

It's a little hard to see the screen images but it doesn't look like you have any output channels enabled to Slot-0/Slot-1 for the 2-channel out I2S configuration it looks like you're trying to achieve.

Also, it looks like the audio signals are possible connected in the wrong polarity from the AP. The GND connections are on the outside of the board as the labels on the board show.

0 user6547614 over 3 years ago in reply to Collin Wells

Intellectual 340 points

Let me summarize:

there is two test scene:

1. ap with master,adc5140 ASI with slave,so the hardware wiring GND is inside the board?

2.ap with slave,adc5140 ASI with master,so the hardware wiring GND is outside the board?

3.In both cases, the S0 switch is dialed to OFF?

4. we test the board test pin with codec MCLK,FRAMECLK...the wav is wrong, And the signal quality was poor

0 user6547614 over 3 years ago in reply to user6547614

Intellectual 340 points

hi sir,

please check my attachment

the test scene :

test step:

1.switch S0 with ON

2.ap with slave,ADC5140 ASI with master, i do the hardware wiring GND is outside the board,

3. and ap digtal serial with TDM mode,with word len 32bit ,and i config one ended single channel,so ap with 2channel num.

help me check the config whether right ro not ?

0 user6547614 over 3 years ago in reply to user6547614

Intellectual 340 points

clk mointer check the frame clk 48k,but why ap dect 192k??

0 Collin Wells over 3 years ago in reply to user6547614

TI__Guru 62085 points

Hello,

1.) The pins closest to the outside of the board on the "External ASI" header are the GND signals.

2.) Same answer as above.

3.) "External ASI" requires the S0 to be in the "OFF" position or you'll have a bus contention issue between the signals.

0 Collin Wells over 3 years ago in reply to Collin Wells

TI__Guru 62085 points

In the next thread:

1.) Switch S0 with ON

S0 should still be in the "OFF" position in order to use the AP with the EVM.

2.ap with slave,ADC5140 ASI with master, i do the hardware wiring GND is outside the board,

Good, GND is on outside of the board. You'll still need to make sure the AP is outputting the BCLK signal so the ADCx140 can use it to generate the FSYNC and DOUT outputs.

3. and ap digtal serial with TDM mode,with word len 32bit ,and i config one ended single channel,so ap with 2channel num.

These settings look correct other than that CH2 is not enabled on the main analog page even though it's being slotted to Slot-1.

0 user6547614 over 3 years ago in reply to Collin Wells

Intellectual 340 points

hi sir,

In the next thread:

1.) Switch S0 with ON

S0 should still be in the "OFF" position in order to use the AP with the EVM.

2.ap with slave,ADC5140 ASI with master, i do the hardware wiring GND is outside the board,

Good, GND is on outside of the board. You'll still need to make sure the AP is outputting the BCLK signal so the ADCx140 can use it to generate the FSYNC and DOUT outputs.

3. and ap digtal serial with TDM mode,with word len 32bit ,and i config one ended single channel,so ap with 2channel num.

These settings look correct other than that CH2 is not enabled on the main analog page even though it's being slotted to Slot-1.

i test with you advise please check my attachmen

but ap frame clk is also wrong