topic FLEXCOMM Pins of LPC55S69 in LPC Microcontrollers

FLEXCOMM Pins of LPC55S69

SrinathVelavan — Wed, 05 Apr 2023 08:12:51 GMT

I am working on creating a custom device with LPC55S69 as Host MCU. For a peripheral that is interfaced with LPC55S69 on SPI interface, I have used Flexcomm 1 (Pins 13 & 14) as MOSI & MISO respectively and Flexcomm 3 ( Pin 7) for SSEL. Can we use 2 different Flexcomm interfaces (1 & 3) for the same peripheral or should all pins be in the same Flexcomm interface??

#lpc55s69

Re: FLEXCOMM Pins of LPC55S69

_Leo_ — Mon, 10 Apr 2023 21:16:35 GMT

Hi,

Thank you so much for your interest in our products and for using our community.

All SPI signals must routed to the same Flexcomm instance.

Hope it helps you.

Have a nice day!

Re: FLEXCOMM Pins of LPC55S69

SrinathVelavan — Wed, 12 Apr 2023 06:26:48 GMT

Thank you for your clarification. Will make the necessary changes