LPC55S28 Schematic review request

[steve5528]

Greetings!

I'm in the process of designing my first LPC55S28 board with fairly modest goals, as follows:

1. Power the MCU with MCU-link pro debug probe
2. Flash sample programs to MCU via debug probe
3. Test blinking led, and button operations
4. Test UART functionality thru VCOM facility of debug probe

Here is the schematic, and I would appreciate your review comments - it would be great to have the board working "right in the first pass" as NXP doc says.

I have two follow-up questions:

1. Is ISP support needed for the board if flashing is done mainly with MCU-link pro?
2. Is there a command line version of MCU-link pro to flash the device without having to invoke the IDE?

Thanks much in advance!

[EdwinHz · Accepted solution]

Hi @steve5528,

1. Technically you would not need ISP support, but it is highly recommended to include it for anything that might go wrong while programming the MCU.

2. You could use LinkFlash, which is a GUI based on LinkServer to flash NXP devices, which is based on command line. If you have the latest version of MCUXpresso installed (v24.12.148), you should also have LinkFlash v24.12.21 installed already.

BR,
Edwin.

[steve5528]

Hello @EdwinHz 

Great. I will incorporate the ISP into schematics. Need to upgrade IDE so linkflash is installed.

Hopefully you or someone at NXP can comment on the schematics as well.

[EdwinHz]

Hi @steve5528,

I apologize for missing the schematic review. It looks OK!

[steve5528]

Hi @EdwinHz  Thank you.