SWRZ171 July   2025 CC2755R10

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Advisories Matrix
  5. 2Nomenclature, Package Symbolization, and Revision Identification
    1. 2.1 Device and Development Support—Tool Nomenclature
    2. 2.2 Devices Supported
    3. 2.3 Package Symbolization and Revision Identification
  6. 3Advisories
    1. 3.1  ADC_08
    2. 3.2  ADC_09
    3. 3.3  BATMON_01
    4. 3.4  BATMON_02
    5. 3.5  SYS_204
    6. 3.6  SYS_206
    7. 3.7  SYS_207
    8. 3.8  APU_201
    9. 3.9  UDMA_01
    10. 3.10 RADIO_05

3.1 ADC_08

ADC BUSY bit not cleared in repeat single, sequence, and repeat sequence conversion modes

Revisions Affected

F

Description

When the ADC is configured in repeat single, sequence, or repeat sequence conversion modes with trigger policy as trigger next in the MEMCTLx register, software attempting to stop the conversion sequence by clearing the ENC bit does not clear the BUSY bit in the STATUS register. In the case of sequence conversion mode with trigger next policy, the BUSY bit is cleared at the end of the conversion sequence.

Workaround

To stop the conversions and to clear the BUSY bit in the above-mentioned ADC operating scenario, the following software sequence can be followed.
  1. Write CTL0.ENC = 0
  2. Change CTL1.TRIGSRC to SOFTWARE
  3. Write CTL1.SC=1
This workaround is incorporated into the SimpleLink™ Low Power F3 software development kit (SDK) version 9.11 and newer.