6 Replies Latest reply on Feb 21, 2017 8:41 AM by mroi_1551101

Use an SD card with PSOC 4 BLE

mroi_1551101 Dec 6, 2016 5:26 AM

Dear folks,

I am prototyping a project which requires among other things to read music files from a micro SD card BLE connectivity.

So I am working at using a micro SD card on a PSOC 4 BLE chip, using CY8CKIT-042-BLE with a CY8C4247LQI-BL483 for prototyping.

It looks like emFile is not compatible with BLE chips as changing the target of the emFile sample project to my chip (via Device Selector menu item) leaves the emFile component with a red label 'incompatbile' in the TopDesign file of the project.

Is there some similar component I could use to get things started ?

I found out this project : https://www.element14.com/community/thread/25517/l/psoc-4-pioneer-kit-community-project050-sd-card-example

In this project there is an SDCard component that seems to compile with PSOC 4 BLE. I indeed fear it may not be the most flexible way I could get things done.

Has someone already faced this issue ? Are there other solutions I should look at ? Maybe emFile can be used with PSOC 4 BLE ?

Thanks a lot for your help,

Maximilien.

1. Re: Use an SD card with PSOC 4 BLE

user_49271930 Dec 6, 2016 9:15 AM (in response to mroi_1551101)

Pay attention to the projects:
FatFS-Library-Project-master.zip
and
FatFS_NSDSPI-master.zip
ff11.zip
This has been discussed here: How to speed up write data to micro sdcard use EmFile of Psoc5lp
and here Emfile and micro sdcard in psoc 5lp
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2. Re: Use an SD card with PSOC 4 BLE

mroi_1551101 Dec 7, 2016 1:47 AM (in response to mroi_1551101)

Hello pavloven,

Thanks a lot for your help.

This project is designed for PSOC 5 and I don't know if I can get it working on PSOC 4 : the cy_dma component is incompatible with PSOC 4. I am trying to find a solution.

I will keep in touch if I get it working.

Have a nice day,

Maximilien.
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3. Re: Use an SD card with PSOC 4 BLE

user_49271930 Dec 7, 2016 4:37 AM (in response to mroi_1551101)

sorry for PSoC4 here:
https://github.com/hackingchips/PSoC_FatFs
project from jesusrcc
discussed here
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4. Re: Use an SD card with PSOC 4 BLE

mroi_1551101 Dec 9, 2016 6:56 AM (in response to mroi_1551101)

Hello pavloven,

Thank you so much for your help !

I had troubles getting the PSOC4 version working but using separate SS pin made the trick on my CY8CKIT-042-BLE kit.

Hope this will be useful for other people.

Have a nice week-end.

Maximilien.
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5. Re: Use an SD card with PSOC 4 BLE

user_473032933 Feb 21, 2017 7:57 AM (in response to mroi_1551101)

Hi Maximilien,

I have tried to use the examples and I managed to work with PSoC5LP but there was no success using PSoC4 BLE.
Can you please provide more details about how should I modify the code in order to be able to read/write in SD card with PSoC4 BLE?

Thank you in advance,
Best Regards,
Yiannis
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6. Re: Use an SD card with PSOC 4 BLE

mroi_1551101 Feb 21, 2017 8:41 AM (in response to mroi_1551101)

Hi Yiannis,

I use separate Chip Select and removed the call to wait_ready in select (sdcard.c). It hung my init process and I did not find this test in the SDCard specifications. I have a TODO about digging this topic as I had to do things quick at the moment.

Works like a charm :-)

Hope you will get the same result with those hints.

Regards,

Maximilien.
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