Forum Post: Issue Using UART and SPI on the same port

In SSP 1.0.0 the open for the UART does not clear the registers to their default values and the SMR bits are still set from the SPI use.  This will cause issues when trying to use it in uart mode.    The work around is to clear the SMR & SMR_SMCI registers prior to use as another port. This issue should be fixed in the next release of SSP.