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Original question:

CC2642R: UART2_write sometimes sends data incompletely

CC2642R: CC2642R: UART2_write sometimes sends data incompletely

Souhail Lkandouchi1
Prodigy 50 points
Part Number: CC2642R

We still have the problems!

UART2_write() sends sometimes incompletely data (Last Byte)

With the UART driver, no problem of missing bytes, but the BLE application is unstable

tested with the following SDK versions:

  • cc13x2_26x2sdk_5_10_00_00
  • cc13x2_26x2sdk_5_20_02_00
  • cc13xx_cc26xx_sdk_5_30_01_01

 the last working version:

  • cc13x2_26x2_sdk_4_20_00_35

We ask for support!

Kind regards

Souhail

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    TI__Guru* 94078 points

    Hi Souhail,

    Regarding the issues with UART2 driver
    Have you managed to reproduce the issue when only UART Tx is enabled? Have you verified if the issue could be caused by having both Rx and Tx in blocking mode? Is the issue reproducible with smaller data length? Have you confirmed (with a logic analyzer for example) that the issue is coming from the UART Tx?

    Regarding the Bluetooth instability with the UART driver
    Could you please provide details on the way the driver is configured and used? For example, have you tried to set the driver in callback mode? Have you verified if the issue could come from the heap becoming too small?

    Best regards,