> Date: Thu, 12 Feb 2015 12:58:09 +1300 > From: IVP > Subject: [PIC] SDHC read problem >=20 > Hi all, >=20 > I'm having a wonderfully frustrating time with a variety of SDHC cards >=20 > The same code which works very well with one fails to varying degrees > with others. I have two samples of each. All are readable in a PC card > slot except the Silicon Power, which I think might be crap and wonder > if they support SPI anyway. A couple of the 4GB seem OK in a camera >=20 Your problem sounds very familiar, I do recall, from a few years back, many= devices that would work with a 2GB card but not with many 4GB cards. Sandi= sk has this to say; =20 http://kb.sandisk.com/app/answers/detail/a_id/54/kw/SD%20SDHC/r_id/101834 =20 Given that 4GB is an SDHC card and SPI is an SD format then I would think t= hat unless it specifically states that it is SD compatible its going to be = a pig in a poke. James =20 =20 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .