paolovolpi opened a new issue, #16610: URL: https://github.com/apache/nuttx/issues/16610
### Is your feature request related to a problem? Please describe. As done by Pico Sdk would be better to unset SSPCR1.SSE bit before to modify Spi parameters (Mode, Frequency and Bits). https://github.com/raspberrypi/pico-sdk/blob/ee68c78d0afae2b69c03ae1a72bf5cc267a2d94c/src/rp2_common/hardware_spi/spi.c#L47 ### Describe the solution you'd like In functions spi_setfrequency, spi_setmode, spi_setbits before to call spi_putreg on SSPCR0 SSPCR1 registries disable the PrimeCell SSP peripheral: ``` regval = spi_getreg(priv, RP23XX_SPI_SSPCR1_OFFSET); regval &= ~RP23XX_SPI_SSPCR1_SSE; spi_putreg(priv, RP23XX_SPI_SSPCR1_OFFSET, regval); ``` After the SSPCR0 SSPCR1 registries modification, re-enable the PrimeCell SSP peripheral: ``` regval = spi_getreg(priv, RP23XX_SPI_SSPCR1_OFFSET); regval |= RP23XX_SPI_SSPCR1_SSE; spi_putreg(priv, RP23XX_SPI_SSPCR1_OFFSET, regval); ``` ### Describe alternatives you've considered _No response_ ### Verification - [x] I have verified before submitting the report. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
