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question about GPIO IRQs on UC3B
ok, but they are in the document, UC3B datasheet Rev.G pp35, you can see them in the list. And in the file uc3b0256.h in the section for GPIO: #define AVR32_GPIO_IRQ_0...
Sunday, 17 January 2010 - 17:43
question about sudden long busy delay on microSD cards SPI
hehe, not at the moment. probably in future.
Wednesday, 13 January 2010 - 15:08
question about sudden long busy delay on microSD cards SPI
hi, the microSD card I use on my UC3B is through SPI interface, the PC uses 4pin SD mode, so PC should have upto 4times faster than SPI mode. This sudden long delay is really bad...
Wednesday, 13 January 2010 - 14:19
question about sudden long busy delay on microSD cards SPI
i think on my Transcend 16GBmicroSDHC6, i can get about 10MB/s writting speed from PC. on my SandDisk 2GB microSD card, i can get about 4MB/s.
Wednesday, 13 January 2010 - 11:12
question about sudden long busy delay on microSD cards SPI
write SD card from PC should much faster than 3.3MB/s, I can test it now.
Wednesday, 13 January 2010 - 10:43
question about sudden long busy delay on microSD cards SPI
hi, I now uses a new way to write data, so during the data logging, no FAT operation is involved, so the delay is just the microSD card busy delay. On average, now I can get about...
Wednesday, 13 January 2010 - 09:17
question about sudden long busy delay on microSD cards SPI
ok, then I have to settle for this long delay and hope for the best for my data logging. Thanks.
Wednesday, 13 January 2010 - 08:27
question about sudden long busy delay on microSD cards SPI
i wonder if there exist any old microSD card that doesn't have this wear leveling?
Tuesday, 12 January 2010 - 21:16
question about sudden long busy delay on microSD cards SPI
hi, the link you provide doesn't have the info I need for SD card sudden long delay. I wonder if this long delay is caused by built-in wear leveling design.
Tuesday, 12 January 2010 - 20:12
question about HMATRIX connection on UC3B
ok, then I know, thanks.
Sunday, 10 January 2010 - 10:49
running microSD card SPI clock at 30MHz
ok, thanks.
Saturday, 9 January 2010 - 22:04
question about HMATRIX connection on UC3B
isn't the PDCA master read USART data from it's own bus, but not PBA bus? and i also did a test with just sending data from SRAM to SD card on SPI, and I enabled the PBA slave...
Saturday, 9 January 2010 - 21:09

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