ADAU 1452 MasterSPI not working

SigmaDSP & SigmaStudio MBiester149 Jul 18, 2019 00:00 2 replies Original on forum ↗

MBiester149 Question

Jul 18, 2019 00:00

Hi,

I´m trying to get my program from SigmaStudio 4.4 to the EEPROM connected to my ADAU1452.

The DSP is connected via the I²C-Slaveport to the PC.

The EEPROM (25AA1024) is connected via SPI-Masterport

Selfboot is turned off (LOW).

ADDR0 & ADDR1 are also Low.

The connection to the DSP works fine. I can read and write all the registers.

But if I try to use the "Write Latest Compilation through DSP" funktion, it doesnt work.

The I2C-connection is working fine but the SPI-comunication doesnt start (no movement on the Master SPI pins)

Supply voltage is Stable.

Did I forget any configuration?

Thanks in advance

Prodigy Reply

Jul 19, 2019 00:00

Hello! There is a possibility that the EEPROM does not work. Try to replace this chip and repeat the procedure.

MBiester149 Reply

Jul 19, 2019 00:00

Hi Prodigy,

I measured all the pins of the EEPROM. They are fine.

Then I desoldered the EEPROM but nothing changed .

I also measured all supply pins on the DSP. Also fine.

Edit: I got the SPI_M_pins to change logic level when selected as multipurpose pins(so they can´t be completely dead).

They are also configured the right way when the DSP loads the I2C-to-SPI program.