Arduino for STM32

Hi, i'm trying to write samples from an ADC to an SD card at 16,000HZ, but i am getting terrible SD card write speeds (around 8KB/s)?

SD card: https://www.amazon.co.uk/Kingston-SDCS-32GB-MicroSDClass-Included/dp/B079GTYCW4
MCU: STM32 L452RE

This code collects and writes samples to the SD card for ...

Yeah i've read these resources, its just that the parameter Size isn't documented anywhere, and i can't find documentation for hsai->XferSize or hsai->XferCount either so i'm sorta guessing here.

Looking at the source, i think it depends on your data size as to how the HAL_SAI_Receive() behaves ...

Hi,

When using the SAI protocol i'm not sure what parameter to pass as Size for the HAL_SAI_Receive() function?

I posted a thread here but doesn't anyone know?

https://community.st.com/s/question/0D5 ... -parameter

Update:
Using this code, if i change the adcConfiguration.Init.ClockPrescaler it does change the sample rate, but the channel is printing the the same numbers over the serial port continuously?



// ADC configuration
adcConfiguration.Instance = ADC1;

adcConfiguration.Init.ClockPrescaler = ADC ...

Hi,

I'm working on a project where i need to sample a microphone at a sample rate of >16,000Hz. Using the built in analogRead() i can manage a sample rate of ~9000Hz. See below is the sequence of commands i'm using to try to configure the ADC prescaler to DIV1 to increase its speed, i have used ...