Other Parts Discussed in Thread: AFE4490,
Tool/software: Code Composer Studio
Hi,
I am trying to implement a pulse oximeter by using a custom PCB with CC2650 connected to AFE4490 by SPI. I began with an example project 'SimpleBLEPeripheral' and initiated an SPI task function to send SPI signals to the AFE4490. Although the signals are successfully being sent, I am having no luck receiving anything back from the AFE (on SOMI).
Could I get some help regarding initialization for AFE4490? Is there a way to check if the AFE is up and running using SPI? Does the AFE require a specific number of clocks or require the SPISTE to be low for a certain period of time?
Any help would be greatly appreciated.
Thanks,
Jerin