About unparagoned

unparagoned · 2012-06-26

Posted on June 26, 2012 at 22:41I'm using the standard STM libaries. I'm using SDIO with DMA. It works perfectly when reading up to 511 blocks but as soon as I try and read 512 blocks it stops working. It would successfully transfer 511 blocks then ...

unparagoned · 2011-06-04

Posted on June 04, 2011 at 20:48Application: Displaying bmp pictures stored on a uSD card. Board: STM3210E-eval Edit: I've narrowed down the problem. DMA transfer, where the source buffer is SDIO FIFO which must be Word size (32bit), destination is...

unparagoned · 2011-05-06

Posted on May 06, 2011 at 22:35STM3210E-EVAL demo code

unparagoned · 2012-06-27

Posted on June 27, 2012 at 20:33Thanks clive1 I knew it would be fairly obvious once I knew where to look but was looking in the wrong place. I was looking at the SDIO limits rather than DMA. Thanks.

unparagoned · 2011-06-25

Posted on June 25, 2011 at 17:39 I've attached a project which has fat working. It works on STM32103E eval board. Sorry it's just a snapshot of my current project so there is quite a bit of code there. Also don't believe the menu names or titles, ...

unparagoned · 2011-06-05

Posted on June 05, 2011 at 19:21 Jeffrey, thanks but I'm not getting any errors like that. I think I've worked out what the problem is. Essentially the SDIO FIFO stores 32bit words. The LCD needs 16bit halfWords. It looks like when a word is taken ...

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SDIO can't read more than 511 blocks

DMA Word to HalfWord with memory inc disabled data loss

STM3210E-EVAL demo code

Re: SDIO can't read more than 511 blocks

Re: SDIO + FAT16/FAT32

Re: DMA Word to HalfWord with memory inc disabled data loss