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jaypm

Member Since 13 Sep 2010
Offline Last Active Dec 12 2012 09:11 PM
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Posts I've Made

In Topic: Netduino Firmware v4.1.1 ALPHA 1

27 September 2010 - 09:38 PM

Had a hard time today locating a 2gb micro sd card; finally found a PNY Micro SD; but got nothing but crashes in attempting to use it. So do not think it is compatible.

Hard crashes; unable to ping the board after uploading the test program both with the SD card in and out.


Fred, what SD card shield are you using? Or are you using the Netduino Plus?

In Topic: Compatible Shields and Accessories

23 September 2010 - 01:34 AM

The SparkFun MP3 Shield is compatible. http://www.sparkfun....roducts_id=9736 When combined with the Adafruit Data Logger SD Shield: http://www.adafruit....products_id=243 And when passing small byte arrays (remember maximum RAM on Netduino is 60k and that the 4.1.1.0 firmware is needed for SD) from the SD card to the MP3 shield, it works rather well, if only a little jittery. There's sample code for sending an MP3 file's byte arrays here: https://www.ghielect...hp?topic=2738.0 It's not intended for the Netduino, but replacing the following pins does the trick: BSYNC -> Pins.GPIO_PIN_D2 DREQ -> Pins.GPIO_PIN_D3 RESET -> [Any unused pin?] CS -> Pins.GPIO_PIN_D9 NOTE: I didn't really know what pin to assign for "reset", but it doesn't seem to be necessary in order to work. The volume is set to the value "1" in the code, but it really should be a hex value (see the spec sheet on SparkFun's product page).

In Topic: Netduino Firmware v4.1.1 ALPHA 1

23 September 2010 - 01:14 AM

Hi jaypm,

Fantastic. Thanks for the feedback, and welcome to the Netduino community!

BTW, we're working on a v4.1.1 alpha 2 update--which speeds up SD access substantially. Should be posted within 1-2 weeks.

Chris


That's great! Thanks Chris.

In Topic: Netduino Firmware v4.1.1 ALPHA 1

21 September 2010 - 10:06 PM

Works for me using Adafruit SD shield. I ran the sample file-listing code without any issues! Running Windows 7 x32 Thanks!

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