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11 years, 1 month ago.

Any Plans for KL25Z with AT45DB161 support?

Are there plans to add support for the KL25Z to have a localfilesystem like the regular Mbed via use of the spot on the board?

I love the ability to easily access files on the mbed with the usb drive that pops up!

Is there maybe another way to implement this functionality on our own with an SD? Or is the storage always isolate to only the mbed? I would love to not have to remove the SD every time I want to write or remove data.

Thanks

tap

4 Answers

Erik -
11 years, 1 month ago.

I think what would help you is this: http://mbed.org/handbook/USBMSD.

You then use the non-programming USB port, and it allows writing to for example an SD card connected to your mbed. You probably will need to do some work to get it to do exactly what you want, but that way it should be able to access the SD card via a USB connection.

tap tap
poster
11 years, 1 month ago.

yes I how to implement this with a SD now, but there is a spot for a u5 that is already wired to the SDA interface chip. Are there any plans to update the SDA to support this chip for mbed use?

There are no plans to do that for the KL25Z.

posted by Stephen Paulger 23 Apr 2013
Subhrajit Mitra
11 years, 1 month ago.

hey tap just today i'm wandering about that and you post a question. yes there is a free port U5 in frdm-kl25z kit(black) but previous kit of frdm-kl25z(white) there is that 8pin soic. today i search also in element 14 for that ic and they shows "out of stock". that 8 pin soic is a 16Mbit(4096 x 512kB) flash almost 2 MB. but is that non volatile? because frdm-kl25z kit (black) has itself a 127MB memory.but it is volatile.is there any way to convert that non-volatile?

thanks Subhrajit

Jez Cawley
11 years, 1 month ago.

My original sample board for the freedom-kl25z has an AT45DB161D already fitted in u5 but the last two I bought through element 14 didn't have these fitted...

The AT45DB161 part is now manufactured by Adesto technologies & there's a new version (AT45DB161E) that is recommended for use on new designs. This is a 16MBit serial Flash device & so is non-volatile.

I think the KL25z has 128k Flash (non-volatile) & 16kSRAM (volatile).

Jez

was the AT45DB supported on the white board via different OpenSDA firmware?

Since i is wired to the OpenSDA chip, I doubt it is usable on the board without firmware changes. That is what I am curious about.

MBED: is this is the pipeline?? localfilesystem for KL25Z via the optional onboard chip???

posted by tap tap 23 Apr 2013