CC2650 Spi Salve read

Nagarajan Veluchamy

Other Parts Discussed in Thread: CC2650

Hi.,

I modify the simpleBLEPeripheral project to act as a SPI slave to receive sensor data from an external MCU(EFM32WG). After SimpleBLEPeripheral_init() is complete, we initiate the first

SPI read transfer with bspSPIRead(). We have our master setup to continuously to send out bytes. I’m not seeing any data being received on the CC2650.

I am using CCS

over 10 years ago

0 Fredrik K over 10 years ago

TI__Guru** 106705 points

Hi Nagarajan,

Have you probed your SPI lines to see if the data is being transmitted correctly? Have you debugged the CC2650 SW to see what is going on?

Cheers,
Fredrik

0 Nagarajan Veluchamy over 10 years ago in reply to Fredrik K

Intellectual 490 points

HI.,

Yes I can . I probed the lines using logic port and able to see the transmission ,

1) I can able to send the the data from CC2650 to Host (EFM32WG) and also received at the host RX buffer (SPI0)

2) I can able get the tx callback after the data txn in CC22650

Problem:

I am sending the data from Host to CC2650 but in the RX buffer is always NULL (i.e

RX buffer is not getting updated still the TXN is happening)

0 Nagarajan Veluchamy over 10 years ago in reply to Nagarajan Veluchamy

Intellectual 490 points

It works

Actually I was cheking the RX buffer values in expression in debug mode it always shows .(dot) , later I changed the number format it was

receiving.,

Thanks for your support

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CC2650 Spi Salve read