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April 2, 2009
about 8 months ago
Can this board be used for reading PWM inputs? Or is the PCA9685 output only?
I get ‘mmc1: error -84 whilst initialising SD card’ but can still manually mount it.
Did you try manually mounting the card as per my commands below?
What is your output from:
dmesg -T | grep mmc1
I have had some success. ‘dmesg -T | grep mmc1’ showed that it was detecting the SD card at least on mmcblk1. The following commands allowed me to mount the the Kingston SD card on /mnt/mmc. This was strange as it wouldn’t work if I specified the partition i.e /dev/mmcblk1p1 as suggested.
mount -t vfat /dev/mmcblk1 /mnt/mmc
For some reason the Sandisk worked with the partition defined:
mount -t vfat /dev/mmcblk1p1 /mnt/mmc
Thanks to the following thread for the tips:
I am trying to do exactly the same thing, but I am using Ubilinux. I have tried a Sandisk 16GB Ultra SDHC, and a Kingston 4GB SDHC. Both do not mount automatically and ‘df -h’ does not show any drives.
Any suggestions SF?
Did you find out the answer to this? I’m trying to get my SD card block working, but it’s not mounting in Ubilinux. I’ll have to try find a standard card.
about 3 years ago
Did you ever get a response to this?
I’m having the same problem. I assume its because I don’t have a correct library installed? I have both I2Cdev & MPU6050 libraries installed. Any help would be much appreciated. I’m busy trawling the internet now :)
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