SuperPro P2.2 & P2.3

Questions on other types of hardware and getting it talking to the ARM CPU
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danlee58
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Joined: Thu Jan 17, 2013 2:29 am

SuperPro P2.2 & P2.3

Post by danlee58 »

Can I jumper P2.2 & P2.3 to the last two Arduino pins?



olzeke51
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Location: South Carolina

Re: SuperPro P2.2 & P2.3

Post by olzeke51 »

which last two pins ??? at the end of the digital pins??
one looks like an analog gnd, and the other is a vref,
just past digital 13 [arduino nomenclature]

danlee58
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Re: SuperPro P2.2 & P2.3

Post by danlee58 »

There are 14 I/O pins on the right side of the SuperPro board. They are P0.29 through P2.4. There are two additional unreferenced pins after P2.4. They seem to be unconnected. I want to jumper P2.2 & P2.3 to these two pins to get a total of 16 I/O pins on a header for a custom Arduino Shield.

basicchip
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Re: SuperPro P2.2 & P2.3

Post by basicchip »

Referring to the schematic, those last 2 pins are connected to AREF (on Arduino it is an Analog in reference) which is not connected (open jumper at R7). The other is connected to GND (same as Arduino).

In addition if you do use the BOOT pin as an input, you MUST drive it high during power on or reset, otherwise your program will NOT start up.

danlee58
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Re: SuperPro P2.2 & P2.3

Post by danlee58 »

Can I get the Grid Spacing for P2.2 & P2.3 relative to P2.4 Arduino footprint? I'll just install a header in that row, and mate directly to all I/O pins.

basicchip
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Re: SuperPro P2.2 & P2.3

Post by basicchip »

There are DXF files that show the location of all pins, and search this forum for a DXF reader trial that can ID them all.

But all the pins we have on the board are on 0.1" spacing, except those oddball ones that match the Arduino that are off by 0.016".

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