SYSCONFIG: Sysconfig 1.20 / 1.21 for AM64x: Setting "pin mode" not possible for MCSPI in single peripheral mode

Benjamin Limmer

Part Number: SYSCONFIG
Other Parts Discussed in Thread: AM6422,

Tool/software:

We want to use MCSPI on the M4 core of the AM6422 in single peripheral mode without using chip select.

Unfortunately, SysConfig in version 1.20 and 1.21 does not let you set Pin Mode to "3 Pin Mode" if the "Mode of Operation" is set to "Single Peripheral".

The TRM clearly states "3-pin and 4-pin operation applies to both controller and peripheral modes."

There is a workaround possible:

If you first select "Single Controller Mode", then set the pin mode to "3 Pin Mode", then change back to "Single Peripheral Mode", pin mode in the output file "ti_drivers_config.c" is set to MCSPI_PINMODE_3PIN and the SPI communication works.

I guess that is a bug in the current SysConfig version.

over 2 years ago

0 Daolin Qiu over 2 years ago

TI__Mastermind 20550 points

Hello Benjamin,

This inquiry was wrongly assigned and was redirected to the AM64x team. Please some delay in a response.

-Daolin

0 Tushar Thakur over 2 years ago

TI__Guru 65568 points

Hello Benjamin,

Can you please tell us what version of MCU+SDK are you using?

Regards,

Tushar

0 Benjamin Limmer over 2 years ago in reply to Tushar Thakur

Prodigy 70 points

Hello Thushar,

I am using MCU+ SDK 9.2.0.50

Regards

Benjamin

0 Tushar Thakur over 2 years ago in reply to Benjamin Limmer

TI__Guru 65568 points

Hi Benjamin,

Thanks for your patience.

I am checking this details internally whether this is bug or it's done intentionally.

Please allow some time to revert back.

Regard,

Tushar

+1 Tushar Thakur over 2 years ago in reply to Tushar Thakur

TI__Guru 65568 points

Hello Benjamin,

I have checked the details internally. Thanks for reporting the bug in the current MCU+SDK.

I have created internal Jira ticket for the same to get it fixed in the upcoming release.

Benjamin Limmer said:
If you first select "Single Controller Mode", then set the pin mode to "3 Pin Mode", then change back to "Single Peripheral Mode", pin mode in the output file "ti_drivers_config.c" is set to MCSPI_PINMODE_3PIN and the SPI communication works.

Currently, you can use the above mentioned workaround to configure 3Pin / 4Pin mode when MCSPI is configured for Single Peripheral Mode.

Hope the above information helps.

Regards,

Tushar

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SYSCONFIG: Sysconfig 1.20 / 1.21 for AM64x: Setting "pin mode" not possible for MCSPI in single peripheral mode