Application built with TFM using PSA methods makes UART0 unusable

Hello,

My application is built with TFM in order to use mbedtls.  I am currently using UART0 to send/recv serial data from another board.  If I don't call psa_ps_get_info/psa_ps_get(), UART0 seems to receive the bytes okay.  If I DO call those 2 methods, the UART doesn't seem to be detecting the bytes.  The baud rate is 9600N81.

Why  does it seem that the PSA methods are interfering with UART0?  Is there an alternative secure storage I could use for 2 strings <= 99 bytes each?

Thanks

/Loren

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