cc2540 spi slave dropping packets

Omar Masud

Other Parts Discussed in Thread: CC2540

Hi, I have configured a cc2540 as an spi slave to a microcontroller. The microcontroller is transmitting continuously to the keyfob, but the usb dongle only gets packets once every 6 seconds. The pattern is fairly regular, but I'm not sure why this is. Any help is appreciated.

over 13 years ago

0 kazola over 13 years ago

Guru 18625 points

Hi Omar,

We cannot help you if you do not post a bit of code, such as connection settings, advertising interval and so on.

In addition, you talk about SPI in the question title?

Try again please.

Bye.

0 Jonathan Cohn over 13 years ago in reply to kazola

Expert 1685 points

Could this problem be related to the one being discussed here: http://e2e.ti.com/support/low_power_rf/f/538/p/227515/802731.aspx#802731

I am seeing missing bytes on the UART port when using ISR and some of the TI Employees are hinting at the possibility of conflicts when BLE communication and UART ISRs are happening at the same time.

Are you using DMA or ISR to receive your SPI?

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cc2540 spi slave dropping packets