Can't use STM32N6 DCMIPP continuous mode after snapshot mode

[Mikk Leini]

There's a bug in STM32N6 HAL DCMIPP driver function DCMIPP_SetConfig.

It only sets capture mode bits for PIPE0 to PIPE2, but does not clear them:

 /* Set the capture mode */
 hdcmipp->Instance->P0FCTCR |= CaptureMode;

CaptureMode options are:

#define  DCMIPP_MODE_CONTINUOUS   0U                      /*!< DCMIPP continuous mode (preview) */
#define  DCMIPP_MODE_SNAPSHOT     DCMIPP_P0FCTCR_CPTMODE  /*!< DCMIPP snapshot mode             */

As a result, after having DCMIPP in snapshot mode it is not possible to re-configure DCMIPP into continuous mode using HAL.

Workaround is to manually clear CPTMODE bit.

[Saket_Om]

Hello @Mikk Leini 

The issue has been resolved internally and will be released as soon as possible. 

Internal ticket number: 220344 (This is an internal tracking number and is not accessible or usable by customers).