Hi
ADAU1467 works as SPI master when selfboot is enabled, but how to configure SPI clock frequency for the SPI master?
I tried to look through 1467 datasheet and past EZ threads, but couldn't find it.
Regards,
Tomoto
Hi
ADAU1467 works as SPI master when selfboot is enabled, but how to configure SPI clock frequency for the SPI master?
I tried to look through 1467 datasheet and past EZ threads, but couldn't find it.
Regards,
Tomoto
Unfortunately, there is no way to change the SPI (or I2C) bus speed during self boot. It is just a state machine that loads the code.
Unfortunately, there is no way to change the SPI (or I2C) bus speed during self boot. It is just a state machine that loads the code.
Thanks Ken-san,
I just want to understand how the selfboot function(state machine) works.
As far as I checked with 1467 EVB and SigmaStudio 4.6, Actual SPI clock monitored by a scope
- During Selfboot write : around 10M regardless of "Write Speed" setting,
- Selfboot enabled(read) : around 10k if "Write Speed" was below 1,000k
- Selfboot enabled(read) : around 500k if "Write Speed" was 10,000k
Could you clarify this?
Regards,
Tomoto