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| Search found 9 matches |
| Author | Message |
|---|---|
 Topic: Toggle CS for every SD command? |
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| mbro131 Replies: 2 Views: 4545 |
 Forum: General CCS C Discussion Posted: Sun Jun 04, 2006 8:10 am Subject: Toggle CS for every SD command? |
| Is it necessary to toggle the CS line before every command sent to an SD card? My interpretation of the specification is that it should be, however many of the examples given on this forum only seem t ... | |
| Topic: SD/MMC Read Problem |
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| mbro131 Replies: 1 Views: 3931 |
Forum: General CCS C Discussion Posted: Fri Jun 02, 2006 1:57 am Subject: SD/MMC Read Problem |
| Update: I still dont know what the error is, but i found that if I remove the write block I have prior to the read then the error is removed.. This suggests that my write block has some issues..
I ... |
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| Topic: SD/MMC Read Problem |
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| mbro131 Replies: 1 Views: 3931 |
Forum: General CCS C Discussion Posted: Fri Jun 02, 2006 12:07 am Subject: SD/MMC Read Problem |
| I am having a problem reading from an SD card. It seems to initialise OK, and doesn't return any errors when writing to the card (although as I can't read I havn't been able to confirm this).
The b ... |
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| Topic: SD/MMC clock control |
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| mbro131 Replies: 1 Views: 4162 |
Forum: General CCS C Discussion Posted: Wed May 31, 2006 9:24 pm Subject: SD/MMC clock control |
| I am using a PIC18F2550 to interface with a SD/MMC card. My system needs to be able to use high capacity cards (1GB+) and must also allow them to be interfaced with a Windows system.
The FAT16 file s ... |
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| Topic: SD/MMC Card without CS line? |
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| mbro131 Replies: 2 Views: 4410 |
Forum: General CCS C Discussion Posted: Tue May 30, 2006 11:29 pm Subject: SD/MMC Card without CS line? |
| Yer I suspected as much.. I guess my circuit just got uglier..
Lesson: Don't Assume! Matt |
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| Topic: SD/MMC Card without CS line? |
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| mbro131 Replies: 2 Views: 4410 |
Forum: General CCS C Discussion Posted: Tue May 30, 2006 10:49 pm Subject: SD/MMC Card without CS line? |
| Is it possible to perform any operations on an SD/MMC card with the CS line tied low on the card (SPI mode)?
I threw together a design and assumed (yes.. i know) that the CS line was only used for ... |
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| Topic: USB Example Code Compile Error |
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| mbro131 Replies: 4 Views: 22620 |
Forum: General CCS C Discussion Posted: Mon May 22, 2006 10:08 pm Subject: USB Example Code Compile Error |
| Thankyou for clearing that up for me, much appreciated
Matt |
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| Topic: USB Example Code Compile Error |
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| mbro131 Replies: 4 Views: 22620 |
Forum: General CCS C Discussion Posted: Mon May 22, 2006 8:45 pm Subject: interrupt warnings |
| Ahh thats better. Should I be concerned about the 'Interrupts disabled during call to prevent re-entrancy' warnings?
Does this basically mean that the compiler disables interupts until these routin ... |
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| Topic: USB Example Code Compile Error |
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| mbro131 Replies: 4 Views: 22620 |
Forum: General CCS C Discussion Posted: Mon May 22, 2006 8:08 pm Subject: USB Example Code Compile Error |
| Hi,
I have just been trying to get the CCS USB example code compiled and I am getting the following errors. My C is a little rusty but as they are examples I thought that perhaps someone else had ... |
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