ADAU1466 external SPI Delay
I try to use higher external SPI delay in ADAU1466.
When I use memory 23LC1024, it works well, delay is about 800ms in given channel for 96kHz.
But I need more delay, that I try to use 4Mbit SRAM - IS62WVS5128GBLL. It's pin compatible, when I look to datasheet, it looks the same operation as 23LC1024.
After connecting to SPI to ADAU1466 - delay works! - but with very high noise and with high gain. Delay is about 3200ms !. But it is not usable.
I then create testing communication between Arduino (ESP32) and memory - 32LC1024. And then test IS62WVS5128GBLL.
It looks that different is in READ operation - in included one DUMMY byte (8 clock cycles).
READ communication in sequence for 23LC1024 is:
1 Byte command (read), 3 bytes address, 1 ... N bytes of data
READ communication in sequence for IS62WVS5128GBLL is:
1 Byte command (read), 3 bytes address, 1 DUMMY byte (8 CLK cycles), 1 ... N bytes of data
Is there any solution how to define this in ADAU1466 external SPI Delay settings?
Audio Signal Processors
sigmastudio
SigmaDSP Audio Processors
spi delay
adau1466
NO Answer? Nobody test it yet?
I am also curious if anyone else has tried this and able to get 4Mb RAM to work
Please log in to reply.