Rework of sdcard storage for NXP MIMXRT1060 port

[morali]

I've edited read/write binary and read/write text to open file in working thread. Which is a little bit faster and causes less stutter then previous implementation.
Also there was a problem when file write/read would end with error but the nanoCLR wouldn't get an event, which is also fixed.

Description

Motivation and Context

This bug caused big slowdown of application cycle while read or write was in progress.

How Has This Been Tested?

I've tested above fix with nanoFramework storage sample and with our own application. Storage read/write were successfull and without errors.

Screenshots

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Signed-off-by: morali jeremi.jasinski@gmail.com

[nfbot]

Hi @morali,

I'm nanoFramework bot.
Thank you for your contribution!

A human will be reviewing it shortly. 😉

[josesimoes]

Question: any reason for replacing the platform_malloc and free?
The correct way is to use the platform_NNNN calls.

[morali]

Question: any reason for replacing the platform_malloc and free?
The correct way is to use the platform_NNNN calls.

Yes, we are using different implementation of malloc on our device.
I reverted changes to platform_malloc and platform_free.

[morali]

I think there was some error with downloading some file. Could you rerun pipeline?

[josesimoes]

@morali if you have a different implementation of malloc, that's OK. The platform_malloc (and free) are there for exactly that purpose: abstract whatever implementation there is for a plaform.

You have to define those @ targets\FreeRTOS\common\platform_heap.c (which I think it's already there).

[josesimoes]

LGTM. I don't have an NXP board to test so I'll default to your testing.