TDM interface with SAI for LIS25BA

[Axoul]

Hi,

I try to use a custom board with LIS25BA.

I use SAI with STMF446.

What I know :

MCLK = 12.288 MHz

WCLK = 16kHz

8 slot with 3 active

so BCLK = WCLK * (8 * 16) = 2.048 MHz

What I can do :

I2C works like a charm 😉

What I can't do :

Configure SAI with these values.

Only MCLK is false and depends on Master Clock Divider I guess ...

My actual config :

 

 

If someone can help me, it would be so great

Thanks in advance

Axoul

[waclawek.jan · Accepted solution]

Read out and check SAI registers, or maybe even better, don't use Cube just program the SAI registers directly.

Make sure you have set a valid clock for SAI in RCC.

JW