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product:usb2ax:gpio
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product:usb2ax:gpio [2013/04/02 03:23] xevel |
product:usb2ax:gpio [2013/04/02 03:37] xevel |
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| //This is advanced stuff!// | //This is advanced stuff!// | ||
| - | On the bottom of the PCB of the USB2AX are exposed 8 0.1" pads. They provide access to 6 very useful pins of the ATmega and to ground. | + | On the bottom of the PCB of the USB2AX are exposed eight 0.1" pads. They provide access to some useful pins of the ATmega and to ground. |
| {{ product:usb2ax:USB2AX_bottom_detail.png?300 }} | {{ product:usb2ax:USB2AX_bottom_detail.png?300 }} | ||
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| * GND - Ground | * GND - Ground | ||
| - | The ICSP programming interface uses the SPI pins but might also need access to VCC. In this case, carefully get VCC on the USB connector (see [[product:usb2ax:specs#Schematics|schematics]]). | + | The ICSP programming interface uses the SPI pins but might also need access to VCC. In this case, carefully get VBUS on the USB connector (see [[product:usb2ax:specs#Schematics|schematics]]). |
| See the [[http://www.atmel.com/Images/doc7799.pdf|ATmega32u2 Datasheet]] for more information on these signals! | See the [[http://www.atmel.com/Images/doc7799.pdf|ATmega32u2 Datasheet]] for more information on these signals! | ||
product/usb2ax/gpio.txt · Last modified: 2013/04/02 03:41 by xevel
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