Objective Development Forums 2013-06-25T15:51:04+02:00 https://forums.obdev.at/app.php/feed/topic/8335 2013-06-25T15:51:04+02:00 2013-06-25T15:51:04+02:00 https://forums.obdev.at/viewtopic.php?t=8335&p=25490#p25490 <![CDATA[Re: HID keys port problem]]> Please note that D+ must also be connected
* to interrupt pin INT0!

#

Code: 

define USB_CFG_IOPORTNAME      D
/* This is the port where the USB bus is connected. When you configure it to
 * "B", the registers PORTB, PINB and DDRB will be used.
 */
#define USB_CFG_DMINUS_BIT      0
/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
 * This may be any bit in the port.
 */
#define USB_CFG_DPLUS_BIT       2
/* This is the bit number in USB_CFG_IOPORT where the USB D+ line is connected.
 * This may be any bit in the port. Please note that D+ must also be connected
 * to interrupt pin INT0!
 */


also make sure to set the pull up

Code: 

 #define USB_CFG_PULLUP_IOPORTNAME   D
/* If you connect the 1.5k pullup resistor from D- to a port pin instead of
 * V+, you can connect and disconnect the device from firmware by calling
 * the macros usbDeviceConnect() and usbDeviceDisconnect() (see usbdrv.h).
 * This constant defines the port on which the pullup resistor is connected.
 */
 #define USB_CFG_PULLUP_BIT          1
/* This constant defines the bit number in USB_CFG_PULLUP_IOPORT (defined
 * above) where the 1.5k pullup resistor is connected. See description
 * above for details.
 */

Statistics: Posted by ulao — Tue Jun 25, 2013 3:51 pm

]]> 2013-03-08T16:05:54+02:00 2013-03-08T16:05:54+02:00 https://forums.obdev.at/viewtopic.php?t=8335&p=24895#p24895 <![CDATA[HID keys port problem]]>
I'm trying to create a project based on Hid Keys. My problem starts when trying to connect the D + and D-port to another.

What happens is that I change the port in the library usbconfig.h and connect the pins where I want but after compiling the program and go to the atmega 8, this always works with the configuration of the original design.

I also changed the configuration of PORT's in main.c but the same thing always happens.

I started just by changing the D-, keeping the D+ connected to INT0. For example, in the port's initial project are defined DDRD, D-= 0 and D + = 2. I changed the D-= 3 but when I connect it to the pc it says the device is unknown. If reconnecting the D-= 0, whith no compile or copy back to the atmega8, it works correctly.

What am I doing wrong?

Statistics: Posted by Trindade — Fri Mar 08, 2013 4:05 pm

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