TDA4VM: MMU/MPU support on ARM R5 on TDA4 under TI-RTOS/SysBios?

Milena Milosevic

Expert 1115 points

Part Number: TDA4VM
Other Parts Discussed in Thread: SYSBIOS

Hello,

Is there support for the MMU/MPU on ARM R5F core on TDA4 under TI-RTOS/SysBios?

Does TI-RTOS provides means for memory protection?

Best regards,

Milena

0 Milena Milosevic over 5 years ago

Expert 1115 points

Additionally,

If there are no memory protection mechanisms in TI-RTOS, is there a concept/example how to achieve this on application level?

Best regards,

Milena

0 Karan Saxena over 5 years ago in reply to Milena Milosevic

Hi Milena,

There is support for MPU for the R5F core in SYSBIOS.

Take the example of udma_memcpy_testapp for instance:

Source code: <SDK_PATH>/pdk_jacinto_xx_xx_xx_xx/packages/ti/drv/udma/examples/udma_memcpy_test/*

SYSBIOS config file: <SDK_PATH>/pdk_jacinto_xx_xx_xx_xx/packages/ti/build/j721e/sysbios_r5.cfg

MPU config file: <SDK_PATH>/pdk_jacinto_xx_xx_xx_xx/packages/ti/build/j721e/r5_mpu.xs

The MPU config file gets consumed as a part of the SYSBIOS config file and that is what programs the MPU as a part of the SYSBIOS startup code.

Regards,

Karan

0 Milena Milosevic over 5 years ago in reply to Karan Saxena

Expert 1115 points

Hi Karan,

Thanks for fast reply.

Where can I find more documentation about MPU and its usage?

Regards,

Milena

0 Karan Saxena over 5 years ago in reply to Milena Milosevic

Hi Milena,

Milena Milosevic said:
Where can I find more documentation about MPU and its usage?

Regards,

Karan

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