NSLU2-Linux
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DS101.GPIOConnections History

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March 17, 2006, at 07:03 PM by repvik --
Changed line 11 from:
GPIO[4]AB26USB Button & USB LEDUSB Button/USB LED ControlInput/OutputOnly LED
to:
GPIO[4]AB26USB Button & USB LEDUSB Button/USB LED ControlInput/OutputYes
March 17, 2006, at 07:02 PM by repvik --
Changed lines 35-36 from:

This has to be incorrect, since the led isn't on at all when booting. Twiddling GPIO14/15 does not appear to work either.

to:
Changed lines 38-39 from:
00Green Steady
01Orange Steady
to:
00Off
01Green Blinking
Changed lines 41-42 from:
11Green Blinking?
to:
11Green Steady
February 13, 2006, at 03:48 AM by repvik --
Changed lines 35-36 from:

This has to be incorrect, since the led isn't on at all when booting. Twiddling GPIO14?/15 does not appear to work either.

to:

This has to be incorrect, since the led isn't on at all when booting. Twiddling GPIO14/15 does not appear to work either.

February 13, 2006, at 02:52 AM by repvik -- formatting
Deleted lines 0-1:

PRELIMINARY

February 13, 2006, at 02:52 AM by repvik -- Only one GPIO unidentified :D
Changed lines 22-26 from:
GPIO[13]V24PCI Reset Output?
GPIO[14]U22Status LEDStatus LED ControlOutput?
GPIO[15]U25Status LEDStatus LED ControlOutput?
to:
GPIO[13]V24PCI Reset OutputYes
GPIO[14]U22Status LEDStatus LED ControlOutputYes
GPIO[15]U25Status LEDStatus LED ControlOutputYes
February 13, 2006, at 12:24 AM by repvik -- RB update
Changed line 21 from:
GPIO[12]W26Reset ButtonReset ButtonInput?
to:
GPIO[12]W26Reset ButtonReset ButtonInputYes
February 13, 2006, at 12:04 AM by repvik -- formatting
Changed lines 34-35 from:
11Off
to:
11Off
February 13, 2006, at 12:02 AM by repvik -- usbled control
Changed line 31 from:
00?
to:
00Off
February 12, 2006, at 11:45 PM by repvik -- Verified more
Changed line 17 from:
GPIO[8]W23Power Button Input?
to:
GPIO[8]W23Power Button InputYes
February 12, 2006, at 10:40 PM by repvik --
Changed line 13 from:
GPIO[4]AB26USB Button & USB LEDUSB Button/USB LED ControlInput/OutputYes
to:
GPIO[4]AB26USB Button & USB LEDUSB Button/USB LED ControlInput/OutputOnly LED
February 12, 2006, at 10:35 PM by repvik -- Verified more GPIOs
Changed line 14 from:
GPIO[5]Y25USB LEDUSB LED ControlOutput?
to:
GPIO[5]Y25USB LEDUSB LED ControlOutputYes
Changed line 16 from:
GPIO[7]AA26Power Off Output?
to:
GPIO[7]AA26Power Off OutputYes
February 12, 2006, at 08:27 PM by repvik -- Updated led tables
Changed line 31 from:
00 
to:
00?
Changed lines 37-38 from:
to:

This has to be incorrect, since the led isn't on at all when booting. Twiddling GPIO14?/15 does not appear to work either.

February 12, 2006, at 08:24 PM by repvik -- Updated status on GPIOS
Changed lines 8-26 from:
GPIOIXP BallFunctionConnected to:Configured as:
GPIO[0]Y22I²C SCLRTCOutput
GPIO[1]W21I²C SDARTCTristate
GPIO[2]AC26BuzzerBuzzerOutput
GPIO[3]AA24Power LEDPower LEDOutput
GPIO[4]AB26USB Button & USB LEDUSB Button/USB LED ControlInput/Output
GPIO[5]Y25USB LEDUSB LED ControlOutput
GPIO[6]V21Test? Input
GPIO[7]AA26Power Off Output
GPIO[8]W23Power Button Input
GPIO[9]V22INTCIDE?Input
GPIO[10]Y26INTBUSB UHCI?Input
GPIO[11]W25INTAUSB EHCI?Input
GPIO[12]W26Reset ButtonReset ButtonInput
GPIO[13]V24PCI Reset Output
GPIO[14]U22Status LEDStatus LED ControlOutput
GPIO[15]U25Status LEDStatus LED ControlOutput
to:
GPIOIXP BallFunctionConnected to:Configured as:Verified?
GPIO[0]Y22I²C SCLRTCOutputYes
GPIO[1]W21I²C SDARTCTristateYes
GPIO[2]AC26BuzzerBuzzerOutputYes
GPIO[3]AA24Power LEDPower LEDOutputYes
GPIO[4]AB26USB Button & USB LEDUSB Button/USB LED ControlInput/OutputYes
GPIO[5]Y25USB LEDUSB LED ControlOutput?
GPIO[6]V21Test? Input?
GPIO[7]AA26Power Off Output?
GPIO[8]W23Power Button Input?
GPIO[9]V22INTCIDEInputYes
GPIO[10]Y26INTBUSB UHCIInputYes
GPIO[11]W25INTAUSB EHCIInputYes
GPIO[12]W26Reset ButtonReset ButtonInput?
GPIO[13]V24PCI Reset Output?
GPIO[14]U22Status LEDStatus LED ControlOutput?
GPIO[15]U25Status LEDStatus LED ControlOutput?
September 26, 2005, at 12:46 PM by rwhitby --
Changed lines 43-44 from:
11 
to:
11Green Blinking?
September 26, 2005, at 12:43 PM by rwhitby --
Changed lines 23-26 from:
GPIO[14]U22HD LEDHD LED ControlOutput
GPIO[15]U25HD LEDHD LED ControlOutput
to:
GPIO[14]U22Status LEDStatus LED ControlOutput
GPIO[15]U25Status LEDStatus LED ControlOutput
Changed lines 36-37 from:

HD LED Control:

to:

Status LED Control:

September 26, 2005, at 12:38 PM by rwhitby --
Changed lines 32-35 from:
01Green Blinking
10Green Steady
11Off
to:
01Green Blinking
10Green Steady
11Off
Changed lines 40-44 from:
00Green Steady
01Orange Steady
10Orange Blinking
11Off
to:
00Green Steady
01Orange Steady
10Orange Blinking
11 
September 26, 2005, at 12:37 PM by rwhitby --
Changed line 30 from:
GPIO4?GPIO5?Function
to:
GPIO[4]GPIO[5]Function
Changed lines 32-35 from:
01 
10 
11 
to:
01Green Blinking
10Green Steady
11Off
Changed lines 39-44 from:
GPIO14?GPIO15?Function
00 
01 
10 
11 
to:
GPIO[14]GPIO[15]Function
00Green Steady
01Orange Steady
10Orange Blinking
11Off
September 26, 2005, at 12:30 PM by rwhitby --
Added lines 25-44:

USB LED Control:

GPIO4?GPIO5?Function
00 
01 
10 
11 

HD LED Control:

GPIO14?GPIO15?Function
00 
01 
10 
11 
September 26, 2005, at 12:19 PM by rwhitby --
Changed lines 23-24 from:
GPIO[14]U22HD LED? Output
GPIO[15]U25HD LED? Output
to:
GPIO[14]U22HD LEDHD LED ControlOutput
GPIO[15]U25HD LEDHD LED ControlOutput
September 26, 2005, at 12:18 PM by rwhitby --
Changed line 14 from:
GPIO[5]Y25USB LED Control Output
to:
GPIO[5]Y25USB LEDUSB LED ControlOutput
September 26, 2005, at 12:17 PM by rwhitby --
Changed lines 13-14 from:
GPIO[4]AB26USB Button & USB LED?USB ButtonOutput
GPIO[5]Y25USB LED? Output
to:
GPIO[4]AB26USB Button & USB LEDUSB Button/USB LED ControlInput/Output
GPIO[5]Y25USB LED Control Output
August 29, 2005, at 01:48 PM by tman --
Changed lines 3-4 from:

'' DS-101

to:

DS-101

August 29, 2005, at 01:48 PM by tman --
Added lines 3-4:

'' DS-101

August 28, 2005, at 08:05 PM by tman --
Added lines 1-2:

PRELIMINARY

Changed lines 11-14 from:
GPIO[4]AB26USB Button & USB LEDUSB ButtonOutput
GPIO[5]Y25USB LED  
GPIO[6]V21Test?  
GPIO[7]AA26Power Off Output
to:
GPIO[4]AB26USB Button & USB LED?USB ButtonOutput
GPIO[5]Y25USB LED? Output
GPIO[6]V21Test? Input
GPIO[7]AA26Power Off Output
Changed lines 16-18 from:
GPIO[9]V22INTCIDE? 
GPIO[10]Y26INTBUSB UHCI? 
GPIO[11]W25INTAUSB EHCI? 
to:
GPIO[9]V22INTCIDE?Input
GPIO[10]Y26INTBUSB UHCI?Input
GPIO[11]W25INTAUSB EHCI?Input
Changed lines 21-22 from:
GPIO[14]U22HD LED Output
GPIO[15]U25HD LED Output
to:
GPIO[14]U22HD LED? Output
GPIO[15]U25HD LED? Output
August 28, 2005, at 08:00 PM by tman --
Changed line 11 from:
GPIO[6]V21   
to:
GPIO[6]V21Test?  
August 28, 2005, at 07:58 PM by tman --
Changed lines 14-16 from:
GPIO[9]V22   
GPIO[10]Y26   
GPIO[11]W25   
to:
GPIO[9]V22INTCIDE? 
GPIO[10]Y26INTBUSB UHCI? 
GPIO[11]W25INTAUSB EHCI? 
August 28, 2005, at 07:58 PM by tman --
Changed line 18 from:
GPIO[13]V24   
to:
GPIO[13]V24PCI Reset Output
August 28, 2005, at 07:54 PM by tman --
Changed lines 9-10 from:
GPIO[4]AB26USB ButtonUSB ButtonOutput
GPIO[5]Y25   
to:
GPIO[4]AB26USB Button & USB LEDUSB ButtonOutput
GPIO[5]Y25USB LED  
Changed line 20 from:
GPIO[15]U25USB Copy Button LED Output
to:
GPIO[15]U25HD LED Output
August 28, 2005, at 07:52 PM by tman --
Changed lines 12-13 from:
GPIO[7]AA26Power Off  
GPIO[8]W23Power Button  
to:
GPIO[7]AA26Power Off Output
GPIO[8]W23Power Button Input
August 28, 2005, at 07:52 PM by tman --
Changed lines 12-13 from:
GPIO[7]AA26Power Off   
GPIO[8]W23   
to:
GPIO[7]AA26Power Off  
GPIO[8]W23Power Button  
Changed line 20 from:
GPIO[15]U25USB Button LED Output
to:
GPIO[15]U25USB Copy Button LED Output
August 28, 2005, at 07:49 PM by tman --
Changed line 12 from:
GPIO[7]AA26   
to:
GPIO[7]AA26Power Off   
August 28, 2005, at 07:48 PM by tman --
Added lines 1-20:

The IXP420 CPU has 16 General Purpose Input/Output (GPIO) pins which are used to interface to external hardware. In the case of the DS-101, the GPIO pins are used to monitor the buttons, control the LEDs, connect to the RTC, IDE controller and USB 2.0 controller.

GPIOIXP BallFunctionConnected to:Configured as:
GPIO[0]Y22I²C SCLRTCOutput
GPIO[1]W21I²C SDARTCTristate
GPIO[2]AC26BuzzerBuzzerOutput
GPIO[3]AA24Power LEDPower LEDOutput
GPIO[4]AB26USB ButtonUSB ButtonOutput
GPIO[5]Y25   
GPIO[6]V21   
GPIO[7]AA26   
GPIO[8]W23   
GPIO[9]V22   
GPIO[10]Y26   
GPIO[11]W25   
GPIO[12]W26Reset ButtonReset ButtonInput
GPIO[13]V24   
GPIO[14]U22HD LED Output
GPIO[15]U25USB Button LED Output
view · edit · print · history · Last edited by repvik.
Based on work by repvik, rwhitby, and tman.
Originally by tman.
Page last modified on March 17, 2006, at 07:03 PM