Messages in this thread | | | Subject | Re: [PATCH] MMC Core: Drop initialization frequency floor to 50kHz | From | Ben Nizette <> | Date | Thu, 02 Jul 2009 22:17:36 +1000 |
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On Thu, 2009-07-02 at 13:58 +0200, Haavard Skinnemoen wrote: > Ben Nizette wrote: > > Was recently merged. This is too fast for at least one setup > > permutation - the one on my desk which through trial and error won't > > initialise at anything above ~350kHz (older Sandisk 256MB SD on > > atmel-mci). > > What kind of board is this? It sounds a bit like the CMD or DATA0 > pull-up is too weak...
It is a custom board (you'll see the board support soon) but those pullups are 47k same as NGW100 and STK1000.
'scope confirms all the waveforms are crisp and correct.
> > Haavard
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