Other NXP Products中的主题 Re: FlexSPI2 + Internal bootROM

FlexSPI2 + Internal bootROM

anupbhutada4 — Mon, 18 Mar 2019 13:47:42 GMT

Hello, In my project I want to use a bootloader. I am facing following problems : 1. Can I use boot ROM (128KB) for custom bootloader code for firmware update ? and How (any starting address) ? 2. I want to write some data in internal flash. I think, the starting address for internal flash is 0x70000000. Will I need FlexSpi2 to access internal flash ? If yes then how to configure FlexSpi2 ? (please refer attachment)

Re: FlexSPI2 + Internal bootROM

fangfang — Tue, 19 Mar 2019 02:19:48 GMT

Hello,

Your question has been handled with your case. Please check in your email in time. Please contact to us again if you have any quesion.
Have a great day,
TIC

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Re: FlexSPI2 + Internal bootROM

anupbhutada4 — Tue, 19 Mar 2019 06:45:10 GMT

In attached image, I am not getting Flexspi2 driver. I am using SDK_2.x_EVK-MIMXRT1064(Ver 2.4.1). So please tell me if I am missing anything. Thanks In Advance.

Re: FlexSPI2 + Internal bootROM

fangfang — Wed, 20 Mar 2019 07:31:12 GMT

Hello

FLEXSPI2 is used to connect the internal qspi flash, so you can't find the according pins.and so there is not the driver for it.

Have a great day,
TIC

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Re: FlexSPI2 + Internal bootROM

anupbhutada4 — Wed, 20 Mar 2019 11:21:26 GMT

Hello,

Thanks for your quick response.

We need to partition the internal flash in two sections (2MB each). One

section will have the running application image. This image will have code

to write different image (firmware update) to other section. Is there any

API to store the data at any address of internal flash. In ProcessorExpert

(MK22FN1M0), the component “IntFLASH” is available for accessing internal

flash using methods such

as __EraseFlash(),_SetByteFlash(), _SetWordFlash(),

SetLongFlash(), IntFlashLdd1EraseBlock(),

IntFlashLdd1_Write(),IntFlashLdd1_Erase().

Is there any similar kind of APIs available for accessing internal flash of

I.MXRT1064?

Re: FlexSPI2 + Internal bootROM

fangfang — Thu, 21 Mar 2019 07:20:17 GMT

Hello,

You are welcome. Please find the FLASH API example as the reference manual (P268).Hope it help you.

Have a great day,
TIC

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