In i.MX23 reference schematic revision C if fond a two design notes
I am using SD / MMC Card Socket (4-Bit Databus)
Design Notes
1) The SD/MMC socket should an integrated, normally open mechanical Card Detect (I implement this note)
2) The i.MX23 has integrated pull up resistors for the SD/MMC DATA and CMD signals that must be enabled by setting a register (How can I do this?)
Thanks for any advice
Sergio Sosa
My design is based in VDD5V connection with no battery
Reading other questions I found that maybe the problem is the default configuration of the bootlet code because use Lilon Battery and I am designing without battery
I understand that I need some patches
Anyone have more information?
Thanks
Sergio Sosa
Hi Sergio
please check Chapter 37 Pin Control and GPIO i.MX23 Reference Manual
http://www.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf
For VDD5V configuration with no battery one can look at
Updates and Patches (9)
Linux patch for i.MX28 SDK 2010.12 to add the most robust support possible
for a VDD5V or DCDC_BATT only configuration.
http://www.nxp.com/products/software-and-tools/software-development-tools/i.mx-software-and-tools/i....
Best regards
igor
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