LPC MicrocontrollersのトピックRe: Can you use the DMA to do AES encryption

Can you use the DMA to do AES encryption

henry_lovett — Mon, 03 Jun 2019 16:25:12 GMT

Hi,

I was wondering if it is possible to run the AES crypto using the DMA on a LPC54S018? The example code in the SDK uses a poll from the CPU, rather than DMA or interrupt based - is there any reason it is done this way?

Many thanks,

Henry

Re: Can you use the DMA to do AES encryption

ZhangJennie — Wed, 05 Jun 2019 09:36:00 GMT

The AES encryption and decryption engine supports DMA for transferring data between memory and the AES engine.

See user manual Chapter 45. Security features. 45.9.3 General description

However I just checked we don't have this demo code, user may make it by themselves.

Have a great day,
Jun Zhang

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Re: Can you use the DMA to do AES encryption

henry_lovett — Wed, 05 Jun 2019 09:39:10 GMT

Hi,

Perfect - thank you very much for clarifying.

Henry

Re: Can you use the DMA to do AES encryption

ZhangJennie — Wed, 05 Jun 2019 10:05:50 GMT

you are welcome!