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Forum Index : Microcontroller and PC projects : SD Card Reset.

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aargee
Senior Member

Joined: 21/08/2008
Location: Australia
Posts: 255

Posted: 11:17am 13 Jul 2011

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Odd question, when the SD Card is inserted live, should the Maximite reset?

For crying out loud, all I wanted to do was flash this blasted LED.

stuarts

Senior Member

Joined: 15/06/2011
Location: Australia
Posts: 199

Posted: 11:39am 13 Jul 2011

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I understand that its not supported to swap it live, but it works on mine

Stuart

Time is nature's way of keeping everything from happening all at once.

seco61
Senior Member

Joined: 15/06/2011
Location: Australia
Posts: 205

Posted: 11:48am 13 Jul 2011

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My understanding is this should work OK (and does on my PCBs - but I have added extra decoupling...).

However, depending on your decoupling caps, the "power spike" that occurs when the card is inserted and initially powers up could reset the PIC.

Add some extra decoupling around the SD card socket to smooth the power rail and see if that helps (again, LOW ESR caps are the way to go!).

Regards

Gerard

Regards

Gerard (vk3cg/vk3grs)

VK6MRG

Guru

Joined: 08/06/2011
Location: Australia
Posts: 347

Posted: 12:12pm 13 Jul 2011

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I used to swap my SD card from the Maximite to the PC all the time with it running programs to edit the Basic software I was writing with no problems!
Now I just use HyperTerminal and cut and paste with note pad.

Its easier to ask forgiveness than to seek permission!

............VK6MRG.............VK3MGR............

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