Uart bulk data transfer

[prsh]

Hello

i need some help in transfering 24 bit 3 channel adc captured data via uart. SPI based ADC sampling rate is 4ksps i.e. I get dataready interrupt at every 256usec . The total bits per second would be then 4000x9x8 equals 288000.

Can anyone help me with how can i transfer this via uart? (MCU - stm32l476 at 48MHz)

Thanks in advance.

[KDJEM.1]

Hello @prsh ,

I think these FAQs can help you:

• ADC interleaved mode (1/2): How to improve ADC sampling rate

• ADC interleaved mode (2/2): Hands-On STM32CubeIDE project

   

I hope this help you!

Thank you.

Kaouthar

[Tesla DeLorean]

Data outflow rate would need to exceed in-flow with some margin.

Perhaps best to use a DMA ping-pong method where you manage the HT and TC interrupts so you can light off a HAL_UART_TransmitDMA() for the IN-ACTIVE half of the ADC buffer

Probably also want to think about how you might packetize this in a way that allows for synchronization and recovery at the receiving end.