STM32WB55RGV6(P2P communication), I use stm32wb55 to transfer the data collected by ads1299 to USB dongle。（my board is server, usb dongle is client）,it's failled.

[Lep]

Determine whether the data is ready by judging the edge of the DRDY pin of ads1299, but there is no signal. When I use the virtual timer to repeat the notification, there is data, but because it is not synchronized with the ADS1299, the data is not correct, and then my project does not know how to proceed.

[Remy ISSALYS]

Hello,

Check the ads1299 and GPIO initialization, maybe something is missing concerning the DRDY pin.

Best Regards

[Lep]

Thank you, I have solved this problem.