2009-05-11 16:26:46 CE-ATA
Thomas Kurmann (SWITZERLAND)
Message: 73966
Hello,
We are wondering if it is already possible to use the CE-ATA interface on the BF-51x chips? I didnt find anything in the newest kernel source.
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2009-05-11 16:44:36 Re: CE-ATA
Mike Frysinger (UNITED STATES)
Message: 73967
what interface are you talking about ? the BF54x is the only Blackfin chip with an ATAPI peripheral.
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2009-05-11 17:02:29 Re: CE-ATA
Thomas Kurmann (SWITZERLAND)
Message: 73968
Quoted from the Analog Devices site for the BF-518
Connectivity: SDIO, CE-ATA, eMMC, UART’s, SPORT’s, SPI and TWI
Also in the data sheet on page 12.
RSI INTERFACE
The removable storage interface (RSI) controller acts as the host
interface for multi-media cards (MMC), secure digital memory
cards (SD Card), secure digital input/output cards (SDIO), and
CE-ATA hard disk drives. The following list describes the main
features of the RSI controller.
• Support for a single MMC, SD memory, SDIO card or CEATA
hard disk drive
• Support for 1-bit and 4-bit SD modes
• Support for 1-bit, 4-bit and 8-bit MMC modes
• Support for 4-bit and 8-bit CE-ATA hard disk drives
• A ten-signal external interface with clock, command, and
up to eight data lines
• Card detection using one of the data signals
• Card interface clock generation from SCLK
• SDIO interrupt and read wait features
• CE-ATA command completion signal recognition and
disable
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2009-05-11 17:18:46 Re: CE-ATA
Mike Frysinger (UNITED STATES)
Message: 73969
there is no Linux stack for CE-ATA yet, thus there is no Blackfin support for it
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2009-05-12 05:27:00 Re: CE-ATA
Thomas Kurmann (SWITZERLAND)
Message: 73989 > Hmm I guess thats bad luck for us Would have been a wonderfull interface for small recording systems. Anyway, would it also be possible to use multiple SD cards on the same bus? As far as I know this should be possible with the chip selects.
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2009-05-12 19:01:27 Re: CE-ATA
Mike Frysinger (UNITED STATES)
Message: 74000
SD doesnt have a chip select. where do you see that ?
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2009-05-13 04:02:14 Re: CE-ATA
Thomas Kurmann (SWITZERLAND)
Message: 74013 >
Sorry, I messed up the SPI and SDIO interface I found an interesting
pdf regarding this matter:
www.xilinx.com/publications/xcellonline/xcell_63/xc_pdf/p37-39_63-ng.pdf
I am not aware on how the sdio driver works in detail, but was it made
to support multiple devices? Or should we just use the spi port for 1
card and the sdio for the other?
Another thing, is there anyway that university students could get a
sample or 2 of a BF518 from AD? Or does anybody have a couple a samples
lying around?
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2009-05-13 14:30:27 Re: CE-ATA
Mike Frysinger (UNITED STATES)
Message: 74024
if the CPLD signaled a soft eject when switching cards, then it'd probably work
as for uni stuff, use this form:
forms.analog.com/Form_Pages/dsp/universitydonation.asp