AWR1843BOOST: AWR1843BOOST: Pinmux setting: Is it possible to set up UARTA Rx and UARTB Tx to the Same PIN?

Lei

Expert 2050 points

Part Number: AWR1843BOOST

Is it possible to set up UARTA Rx and UARTB Tx to the Same PIN? For example

Pinmux_Set_OverrideCtrl(SOC_XWR18XX_PINF14_PADAJ, PINMUX_OUTEN_RETAIN_HW_CTRL, PINMUX_INPEN_RETAIN_HW_CTRL);
Pinmux_Set_FuncSel(SOC_XWR18XX_PINF14_PADAJ, SOC_XWR18XX_PINF14_PADAJ_MSS_UARTA_RX);

Pinmux_Set_OverrideCtrl(SOC_XWR18XX_PINF14_PADAJ, PINMUX_OUTEN_RETAIN_HW_CTRL, PINMUX_INPEN_RETAIN_HW_CTRL);
Pinmux_Set_FuncSel(SOC_XWR18XX_PINF14_PADAJ, SOC_XWR18XX_PINF14_PADAJ_MSS_UARTB_TX);

over 4 years ago

0 Cesar over 4 years ago

TI__Guru**** 150474 points

Please check the following header file. This will give you the capability of the device.

C:\ti\mmwave_sdk_03_05_00_04\packages\ti\drivers\pinmux\include\pinmux_xwr18xx.h

Regarding the capability of the BOOST EVM, I have forwarded your question to the hardware team

thank you

Cesar

0 aozer over 4 years ago in reply to Cesar

TI__Mastermind 31075 points

Hello,

Please refer to table 4.1 of the device datasheet for all of the possibilities that can be muxed out on the pins.

https://www.ti.com/lit/ds/symlink/awr1843.pdf

Regards,

Adrian

0 Lei over 4 years ago in reply to aozer

Expert 2050 points

Thanks. I can see there are several signal names for pin F14. Does this mean we can set up the pin for multiple signal names (ex. mutexd out the MSS_UARTA_RX and MSS_UARTB_TX)?

Can you please also check the question https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1052365/awr1843boost-pinmux-setting-is-it-possible-to-set-multiple-pins-for-uarta-tx ?

+1 Ishita Kochar over 4 years ago in reply to Lei

TI__Mastermind 31680 points

Hello Lei,

This means that pin F14 can be muxed out on any ONE of the signals that are available in the table you highlighted in the datasheet.

Regards,

Ishita

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AWR1843BOOST: AWR1843BOOST: Pinmux setting: Is it possible to set up UARTA Rx and UARTB Tx to the Same PIN?