Post Created date
I need informatin of SD card interface,where can find?
laserman wrote:Here's a link to the mmc manual... I don't think he's looking for SD or MMC specs. He mentioned before that he understands the SPI card communication, but needs to...
Saturday, 9 December 2006 - 16:58
I need informatin of SD card interface,where can find?
Implementing an entire fat12/16/32 file system from scratch would probably take you quite awhile if you're not familiar with it already. You should be able to find someone's...
Friday, 8 December 2006 - 16:16
MMC and sektor 0
The fat table always begins with the byte 0xEB__90 or 0xE9____ (x86 jump instructions with _ being any number). I'm not as familiar with the partition table, but if those aren't...
Friday, 8 December 2006 - 16:10
MMC and sektor 0
With DiskExplorer you can change how it interprets the current sector in view. The view menu has several choices for "view as ...". If it thinks it's a partition table, you can...
Thursday, 7 December 2006 - 16:53
Hard Drive , WLAN interfacing to AVR
To get the D-Link card working, I imagine you'd have to not only implement the entire bus (PCI/PCMCIA/whatever) in software, but also try and write drivers for the D-Link, who's...
Wednesday, 6 December 2006 - 17:01
MMC and sektor 0
From my experience, memory cards formatted in windows will only have a single partition. The boot record at sector 0 will not be a partition table, but a FAT boot record (just...
Tuesday, 5 December 2006 - 16:36
MMC and sektor 0
FAT12/16/32 partition types aren't based on size of drive. They're based on number of clusters, so it depends on what cluster size you use when you format the drive. There are...
Tuesday, 5 December 2006 - 02:45
DC motor control
I think there's an example project or two described in the avr-libc manual that comes with winavr. In there, they have some PWM stuff for init and use.
Tuesday, 5 December 2006 - 02:32
DC motor control
dksmall wrote:Do you need to vary the motor speed? From his original post... broes wrote:This is what it must do. I want to control the motor with the PWM from a ATMEGA32. I've...
Monday, 4 December 2006 - 04:31
DC motor control
Either the 2 button or 4 button solutions should be easy. Do you need the motor to run in forwards and reverse or just one direction? If you need both directions, you'll need an...
Monday, 4 December 2006 - 02:33
Driving 1.8v Signals
Thanks Sebastian =)
Sunday, 3 December 2006 - 19:42
Power AVR from 24V AC
You definitely need a pullup on reset, but 10k should be fine if you have a stable power supply. If you have access to a scope, check out the supply to see how stable it is. For a...
Friday, 1 December 2006 - 04:11