creating a filesystem

[toyo ayeni]

hi support
So I tried to create a filesystem on the external flash using this example => https://github.com/ARMmbed/mbed-os-example-filesystem
After compiling and resetting I get the =>
[WARNING] bootloader: failed to mount filesystem
error.
I erase the flash and reload the filesystem application but I just keep getting the warning.

Am I doing this wrong?

[Jason Reiss]

What type of external flash are you using?

This example uses a block device as storage. This can be one of:

A built-in SPI flash, such as on the FRDM-K82F.
An external block device (one of SPI flash, DataFlash or an SD card).
Simulated on a heap block device on boards with enough RAM.

[toyo ayeni]

Sorry Jason I should have mentioned that.

Its the 2Mb external flash on the MTS dragonfly.
Apparently I should be able to put a filesystem on there.
It is also supposed to be connected to the STM32 processor
through the SPI3 pins.

[Jason Reiss]

https://os.mbed.com/docs/mbed-os/v6.0/apis/spi-flash-block-device.html

This API is a block device for NOR-based SPI flash devices that support SFDP.

The Flash part on Dragonfly does support SFDP.

[EDITED FOR CORRECTNESS]

• This reply was modified 3 years, 10 months ago by Jason Reiss.

[Leon Lindenfelser]

You are right… it is connected to SPI3. These are the pin names. PA_4 did not receive an alias of SPI3_CS. You need to reference it as PA_4.
PA_4 is the SPI3 chip select.
PC_10 or SPI3_SCK
PC_11 or SPI3_MISO
PC_12 or SPI3_MOSI

[toyo ayeni]

“Otherwise we have a filesystem example for Dragonfly here.

https://os.mbed.com/teams/MultiTech/code/Dragonfly_Filesystem_Example/”

This example is for mbed OS 2. I’m working with mbed OS 5.

[Leon Lindenfelser]

On the following Dragonfly and Dragonfly Nano models, we are shipping with a flash part that support SFDP:
MTQ-MVW1-B01
MTQ-MNA1-B01
MTQ-LSP3-B03
MTQN-MNG1-B01
MTQN-MNG3-B01
Other Ddragonfly models will have a flash part, of the same density, that does not support SFDP. To verify the flash part is one that supports SFDP, you can see a rather large ‘G’ logo on the tiny part.

[toyo ayeni]

I’ve got the MTQ-LAT3-B01 and I dont see the G logo.
What options do I have?

[toyo ayeni]

Leon,
You said the MTQ-MNA1-B01 is an SDPF device but the device
guide says its still the M25P16 flash on it.
Is the device guide right or are you right?

[toyo ayeni]

Another question – does the MTQ-LSP3-B03 only work on the Sprint network? Does that mean it wont work on AT&T or Verizon?

[Leon Lindenfelser]

MTQ-MNA1-B01: I’m glad you pointed that out. The documentation must not have been properly updated.
MTQ-LSP3-B03: This is Sprint only.

I’m going to see if I can get the file system example to build on a newer version of mbed.

[toyo ayeni]

“MTQ-MNA1-B01: I’m glad you pointed that out. The documentation must not have been properly updated.”

this means I can just simply replace the LAT3 module with this one. They are pin compatible right?

**************************************************************************
“I’m going to see if I can get the file system example to build on a newer version of mbed.”

thanks. I’m currently still on mbed 5 not 6. mbed 6 has a number of issues I prefer not to deal with right now.

[Leon Lindenfelser]

Yes, they are pin compatible.

[toyo ayeni]

It says for north america – that means Canada as well right?

[Leon Lindenfelser]

https://www.multitech.com/brands/multiconnect-dragonfly
LAT3 Lists the region as US/Canada
MNA1 Lists the region as US

[toyo ayeni]

Thats fine. Please just let me know when you have updated filesystem code

Thanks!

[toyo ayeni]

Question for you, what changed between the
MTQ-LAT3-B01-SP and MTQ-LAT3-B01.R2-SP releases?
Did it have anything to do with the external flash?

[Leon Lindenfelser]

Just the radio firmware changed. Same flash part.

[Leon Lindenfelser]

Please give this a try:
https://os.mbed.com/teams/MultiTech/code/Dragonfly_Filesystem_Example_mbed_5/

[toyo ayeni]

Thanks! Will let you know as soon as I try it out.

[toyo ayeni]

So it worked using the mbed online compiler. I’m seeing issues with the studio. I will contact mbed support if I need to.

Thanks so much

[Author]

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