topic LPC5460x USB composite MSC to SPIFI flash example in LPC Microcontrollers

LPC5460x USB composite MSC to SPIFI flash example

cybaluke — Thu, 14 Jun 2018 09:05:16 GMT

Hi everybody, I am just starting a project using LPC5460x and MCUXPRESSO IDE, I need to have a USB composite interface to manage a USB virtual com port to control the main embedded app from a host PC and a USB MassStorageClass interface to download some data files (they are a couple of .bin files for other micro/dsp on the board and other files of raw data used by the main app) from the host PC to the SPIFI flash on board (MX25L12835FM2I-10G). Note: all the embedded firmware functions will run in internal LPC flash.

Could you suggest me the right example for LPC5460x to starting from to code a USB Mass Storage Class that can write data files from the host PC to SPIFI flash and can you suggest how (if it is possible) to port it in a composite VirtualCom and Mass Storage Class?

Best regards

Re: LPC5460x USB composite MSC to SPIFI flash example

Hui_Ma — Tue, 19 Jun 2018 05:30:52 GMT

Hi,

Customer could refer [usb_device_composite_cdc_msc] demo as the start project.

MCUXpresso SDK software package also provides SPIFI example code with below path:

C:\nxp\SDK_2.3.1_LPCXpresso54608\boards\lpcxpresso54608\driver_examples\spifi

Wish it helps.

Have a great day,
Mike

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Re: LPC5460x USB composite MSC to SPIFI flash example

cybaluke — Tue, 19 Jun 2018 07:18:51 GMT

Thanks Mike for your help.

SPIFI is not the real problem for me but I'm a USB-stack beginner so I started from lpcxpresso54608_dev_composite_cdc_msc_lite_bm example (as you suggested) but I don't know very well UFI standard and in general USB stack, so it's difficult for me to understand when e where (in what handlers) manage the incoming and outcoming datas from the host PC.

I was looking for a "USB-MSC for dummy" example or some references to understand where insert in the USB handlers my callbacks for SPIFI reading and writing functions.

best regards

luke

Re: LPC5460x USB composite MSC to SPIFI flash example

Hui_Ma — Thu, 21 Jun 2018 05:00:40 GMT

Hi Luke

MCUXpresso SDK software also provides below USB-MSC example for your reference:

Please find them with below path:

C:\nxp\SDK_2.3.1_LPCXpresso54608\boards\lpcxpresso54608\usb_examples

You also could download the MCUXpresso SDK USB stack help document from MCUXpresso SDK config website.

Wish it helps.

Have a great day,
Mike

Re: LPC5460x USB composite MSC to SPIFI flash example

cybaluke — Thu, 21 Jun 2018 06:42:01 GMT

Thanks Mike for the help, I think "usb_device_msc_sdcard_lite_bm" could be a good starting point for my work, SDK.2.4.0 misled me, it doesn't has the same samples of the SDK.2.3.1...