UART TxD pin assignment inconsistency between PSEL.TXD and Serialization UART for PCA10056

RE: UART TxD pin assignment inconsistency between PSEL.TXD and Serialization UART for PCA10056

Kenneth — Tue, 15 Jan 2019 10:12:32 GMT

When in doubt you can always check the examples in the SDK (\examples\peripheral\uart\pca10040). It's in binary in both cases, but nRF52832 don't have PORT1.

#define TX_PIN_NUMBER 6

RE: UART TxD pin assignment inconsistency between PSEL.TXD and Serialization UART for PCA10056

Starlord — Mon, 14 Jan 2019 16:05:41 GMT

Hi Peter,

Thanks for your response but I need further clarification.

This is quite surprising. In the PSEL.TxD of the nRF52832, the PSEL register use bit masking to indicate pin location.

If we follow your response this mean that we have 2^32-1 location for TxD pin.

I should have probably interpreted wrongly that bit masking was required.

Should we consider that for nRF52832, pin selection is done using bit masking and with nRF52840, the selected pin number should be written in binary into the LSB portion of the register?

Regards,

RE: UART TxD pin assignment inconsistency between PSEL.TXD and Serialization UART for PCA10056

Peter Kenyon — Mon, 14 Jan 2019 15:51:28 GMT

Bit 0 to 4 gives you 32 pin values and bit 5 gives you two ports