[FAQ] AM625: MCSPI MISO MOSI IDENTIFICATION

Paul Nwoko

Prodigy 105 points

Part Number: AM625

Tool/software:

Hi Ti Experts,

I am designing a custom board for the AM6254 SoC and trying to connect an SPI peripheral to the AM6254 SPI interface.

I intend to use MCU_SPI1 Channel but I am not sure which one is MISO and MOSI between MCU_SPI1_D0 and MCU_SPI1_D1.

Kindly help me identify which one is which.

Looking forward to your response. Thank you.

Regards,

Paul.

1 month ago

0 Kallikuppa Sreenivasa 1 month ago

TI__Guru**** 157479 points

Hello Paul,

Thank you for the query.

Please refer below E2E FAQs.

e2e.ti.com/.../faq-am623-spi-data-miso-mosi-usage-for-d0-d1
e2e.ti.com/.../faq-am6412-am64x-spi-d0-and-d1---miso-mosi
e2e.ti.com/.../faq-am62x-mcspi-d0-and-d1-direction-in-spi-bootmode
e2e.ti.com/.../faq-am62a3-q1-the-miso-and-mosi-of-the-spi
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1090926/faq-am62x-ospi-in-spi-mode-for-booting-mosi-vs-miso

Please refer below FAQ that provides link to most commonly used collaterals including TRM

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1183910/faq-am625-custom-board-hardware-design-collaterals-to-get-started

Regards,

Sreenivasa

+1 Jun Tu 1 month ago in reply to Kallikuppa Sreenivasa

Expert 1190 points

Hi, Paul:

It is configurable and doesn't matter.

I have an example in ti_pinmux_config.c

<code>

static Pinmux_PerCfg_t gPinMuxMcuDomainCfg[] = {

...

{

MCU_SPI1_D0,

( PIN_MODE(0) | ~PIN_INPUT_ENABLE | PIN_PULL_DISABLE )

{

MCU_SPI1_D1,

( PIN_MODE(0) | PIN_INPUT_ENABLE | PIN_PULL_DISABLE )

};

</code>

In my above example, it is obviously,

SP1_D0 is SPI_MOSI and SP1_D1 SPI_MISO. Don't forget to check the pin mode. In your AM6254, pin mode might be slightly differently.

Thanks

0 Kallikuppa Sreenivasa 1 month ago in reply to Jun Tu

TI__Guru**** 157479 points

Hello Jun Tu,

Thank you.

Regards,

Sreenivasa

0 Paul Nwoko 1 month ago in reply to Jun Tu

Prodigy 105 points

Thank you Jun for you response

0 Paul Nwoko 1 month ago in reply to Kallikuppa Sreenivasa

Prodigy 105 points

Hello Kallikuppa,

Thanks for your response.

Regards,

Paul

0 Kallikuppa Sreenivasa 1 month ago in reply to Paul Nwoko

TI__Guru**** 157479 points

Hello Paul,

Thank you.

I will close the thread.

Regards,

Sreenivasa

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[FAQ] AM625: MCSPI MISO MOSI IDENTIFICATION