Can you read the card? This sounds like the problem some others have had, but I have not and so I couldn't fix it.
Matt. On Nov 6, 8:20 am, Sebastien Lelong <[email protected]> wrote: > Interestingly, results are the same with or without a sd-card... > > Seb > > 2011/11/6 Sebastien Lelong <[email protected]> > > > > > > > Hi Joep, Matt, > > > I tried several other block number, no success... > > About SD_DELAY_AFTER_WRITE = true, I'm already using it (and tried false), > > and I understand it's used on sd_write_stop(), that is, before the problem > > occurs. > > > Thanks, > > Seb > > > 2011/11/6 mattschinkel <[email protected]> > > >> Try changing the value of > >> const bit SD_DELAY_AFTER_WRITE > > >> Is there a write lock switch on the side of your card? Most likely not > >> since your using micro sd. > > >> My MSD still needs work, but I'm getting closer. still not working so > >> well at the moment. I thought I was getting somewhere, but there have > >> been setbacks. If you do get SD card working, I'll give you my latest > >> MSD code. It doesn't support writes yet anyways. > > >> Matt. > > >> On Nov 6, 4:31 am, Sebastien Lelong <[email protected]> > >> wrote: > >> > Hi Matt, guys, > > >> > I'm having a really weird problem with SD-card on my jaluino bee > >> board.It > >> > used to work but not anymore, though same hardware and same software > >> > (backup HEX file that was working). > > >> > Here's the story... > > >> > I built a new Bee board, using 18f25K22 instead of 18F27J53. When I > >> tried > >> > to test sd card it didn't work. Note I programmed 25K22 using pickit2, > >> with > >> > SD-card plugged, while Vpp = 11/12V (IIRC). 27J53 uses 3V3 as Vpp, no > >> harm > >> > to the card can be done... My try didn't work, can't write/read to > >> Sd-Card. > > >> > I tried back on the Bee board, on which I knew it was working. Now it > >> > didn't work at all. I thought I damaged the card with bad voltage, but > >> > Windows is happy use it, format it, read and write to it. So I'm not > >> sure > >> > it's actually damaged. > > >> > Still, using the exact same hardware (I rechecked connection just in > >> case: > >> > OK), the exact same software (HEX I preciously saved), no luck > >> anymore... > > >> > I tried to track down where it fails. It seems it can't terminate/close > >> a > >> > SD sector. The calling code is the following: > > >> > sd_start_write(20) -- get sd card ready for write at sector > >> 20 > >> > for 512 + 256 loop -- loop 1 sector + 1 half sector (512 + > >> 256 > >> > bytes) > > >> > print_string(serial_hw_data,writing) > >> > print_byte_dec(serial_hw_data,counter) > > >> > sd_data_byte = counter -- write 1 bytes of data > > >> > print_string(serial_hw_data,written) > >> > print_crlf(serial_hw_data) > > >> > counter = counter + 1 > >> > end loop > > >> > It actually says it's writing, until the 512th byte, that is, end of SD > >> > card sector. On the last failing call, sd_data_byte'put gets stuck in > >> the > >> > following while loop: > > >> > procedure sd_data_byte'put(byte in data_byte) is > > >> > [...] > > >> > if sd_byte_count == SD_BYTE_PER_SECTOR then -- end of sector write > >> > serial_hw_data = "s" > >> > sd_byte_count = 0 > >> > sd_sector_count = sd_sector_count + 1 -- increment sector count > > >> > spi_master = 0xFF -- send junk crc, crc is disabled > >> > spi_master = 0xFF -- send junk crc, crc is disabled > > >> > x = spi_master -- wait for a response > > >> > while x == 0 loop > >> > serial_hw_data = "." > >> > x = spi_master > >> > end loop > > >> > It just prints "." indefinitely... > > >> > Do you guys have any idea of the current problem ? Could the card be > >> > damaged and still Windows being to use it ? > >> > I'm afraid I don't have another card to test... > > >> > TIA > >> > Cheers, > >> > Seb > > >> -- > >> You received this message because you are subscribed to the Google Groups > >> "jallib" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]. > >> For more options, visit this group at > >>http://groups.google.com/group/jallib?hl=en. > > > -- > > Sébastien Lelong > > -- > Sébastien Lelong- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
