i.MX ProcessorsのトピックRe: SD_WP and SD_CD IOMUX Setting

SD_WP and SD_CD IOMUX Setting

pfsang — Thu, 05 Jun 2014 13:11:49 GMT

hi, all

when i read the SarbreAI souce about SD card, i have a question for iomux setting of USDHC.

for example, the SD_CD pin connects with GPIO_1 pad in SabreAI.

According to chip manual , the pad should be set to ALT6

but in source, it set the GPIO_1 pad to ALT5

like this:

//SD1_CD

MX6Q_PAD_GPIO_1__GPIO_1_1,

i don't know what the difference between them is.

B&R

igorpadykov — Mon, 09 Jun 2014 03:21:53 GMT

Hi fang

for CD,WP one can use these dedicated pins and

any GPIOs. Idea is well described in

Chapter 15 Adding Support for the i.MX53 eSDHC

MX53UG MX53SUG.book

Best regards

chip

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