• State Verified Answer
  • Replies 3 replies
  • Subscribers 71 subscribers
  • Views 3266 views
  • Users 0 members are here
Attachments (0)
Nordic Case Info
  • Case ID: 100949
Options
This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

[NRF51822] SPI data loss during BTLE connection

Jeffery

Hi

SPI master is 3rd party MCU. SPI slave is nRF51822. If MCU sends a bunch of data to nRF51822 via SPI, at the same time, BTLE host like celluar phone try to connect nRF51822, is it possible to lost SPI data during the BTLE connection? If yes, did you have any suggestion to keep it from? Thanks.

Parents
  • 0

    Hi Hung, So, if SPIS is 2Mbps, no SPI data will be lost during BTLE connection? Can you provide SPIS example code of nRF51822 like SDK for evaluation? We had tried other BTLE IC. Transmit a bunch of data from SPI host to the BTLE IC. Then, the BTLE IC delivered data to celluar phone. We found 2% SPI data will be lost. The reason is BTLE has highest interrupt priority. During the BTLE interrupt, the coming SPI data will be possible to be ignored.

Reply
  • 0

    Hi Hung, So, if SPIS is 2Mbps, no SPI data will be lost during BTLE connection? Can you provide SPIS example code of nRF51822 like SDK for evaluation? We had tried other BTLE IC. Transmit a bunch of data from SPI host to the BTLE IC. Then, the BTLE IC delivered data to celluar phone. We found 2% SPI data will be lost. The reason is BTLE has highest interrupt priority. During the BTLE interrupt, the coming SPI data will be possible to be ignored.

Children
No Data
Related
Terms of service