LP-AM243: UART0 Pins on the LP-AM243 Board?

Dylan Tarter

Part Number: LP-AM243
Other Parts Discussed in Thread: AM2434

Any idea where the UART0 RX and TX pins are? I could not find them in the datasheet, I do think they may be located at the pins on the board labeled UART0 but I couldnt find a picture saying which pin is which, the pinout map does not label them.

over 3 years ago

+1 Frank Livingston over 3 years ago

TI__Mastermind 29338 points

Hi Dylan,

Please see these docs:

AM2434 datasheet: https://www.ti.com/product/AM2434
LP-AM2434 User Guide: https://www.ti.com/tool/LP-AM243?keyMatch=AM243X%20LP#tech-docs
LP-AM2434 design files: https://www.ti.com/tool/LP-AM243#design-files. The schematic is file PROC109E2_SCH.pdf.

The UART interface is described in the UG, 4.11 UART Interface.

MAIN_UART0 is connected to the on-board emulator XDS110
MAIN_UART1 is connected to J13
MCU_UART0 is connected to J17.

If you want more detail about the MAIN_UART0 connections:

If you look for the "UART0" signal names in the datasheet, you can determine the pads (balls) connected to the UART0 Tx/Rx signals.
Next, look for these ball names in the schematic. You can trace the signals from the AM2434 to XDS110 emulator interface.

Regards,
Frank

0 Dylan Tarter over 3 years ago in reply to Frank Livingston

Intellectual 320 points

Didn't realize design files included the pcb schematics, this is specifically what I was looking for (below). I think maybe including the extra jumper pins in the "pin mapping" graphic / file would be helpful because it can take a some digging to find this information which is definitely relevant to many projects.

0 Frank Livingston over 3 years ago in reply to Dylan Tarter

TI__Mastermind 29338 points

Hi Dylan,

Thanks for the feedback. I assume you mean for this file: www.ti.com/.../spruiz5

I don't see a way for you to directly submit feedback for this file, so I'm looping in a colleague to follow up.

Regards,
Frank

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LP-AM243: UART0 Pins on the LP-AM243 Board?