microntroller selection for defence application

[VPath.1]

I want to build product for defense application. Are there any microcontroller with display capable which is millenary grade certified and has DSP capabilities as well. need 2 SPI and 1 I2C ethernet and serial interface has minimum of 4 MB flash and 512 Kb of RAM. arm controller preffered 

[TDK]

> millenary grade certified

Be more specific. STM32s aren't automotive certified, so unlikely they will meet anything more stringent.

> minimum of 4 MB flash and 512 Kb of RAM

No STM32 MCU has more than 2MB of FLASH. Lots of them meet your other requirements.

The MCU Selector in CubeMX can help guide your decision.

[Tesla DeLorean]

Most of these parts are for general consumer use, and specifically not for military or medical (life/death) applications.

Perhaps start with the hiring choices, and an awareness of what's usable and who the manufacturers are for these types/classes of products.

http://vita.mil-embedded.com/articles/is-arm-the-future-for-airborne-platforms-in-military-and-aerospace-2/

[Pavel A.]

Hope I'm not giving out a horrible secret, but where I live, STM32H743/753 are used in military products. At least for less critical modules, not "hard realtime". Of course these STM32s are helped by external watchdogs, power stabilizers, FPGAs, redundancy and so on.

A lot of STM32s are used in drones everywhere.

[Piranha]

Using consumer hardware in non-critical military devices is one thing, but can you comment on software? I guess they don't use Cube/HAL/LL junk... Or do they?

[Pavel A.]

@Piranha​ For board bring-up and tests they use Cube and HAL, like <pick your favorite curse>. The rest is classified :)

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