The DigiX > DigiX Project Ideas

Brainstorming Improving Next Version Of digiX Board

<< < (2/4) > >>

gogol:
The labels for the AREF bridges could be made more clear, see example:

gogol:
The ERASE-Pin should be available for alternative programming connections

dfarrell:
Break out the backup voltage pin (VDDBU) to a connector suitable for a battery.

gogol:

--- Quote from: gogol on December 19, 2013, 06:29:53 am ---The Due has two crossconnections on digital PIN 4 between PC26 and PA29  and on digital PIN 10 between PC29 and PA28.

Those connections are at least for certain projects counterproductive.  So it might be an advantage, there could be two additional pins for PA28 (digital 77) and PA29 (digital 87) and an solder bridge for both crossconnections, which could be opened, if needed.

(http://forum.arduino.cc/index.php?topic=205569.msg1512787#msg1512787)

--- End quote ---

The reason for those cross-connections was the idea, to be backwards compatible to 8-bit Arduinos and have PWM and SPI-chip select on one pin.
As PWM is generated via the TIO Timer-Functions and none of those had chip-select functions, the Arduino developers decided, to combine two cpu pins.

With that background I think, it would really make sense, to lead both cpu pins to individual pins and make it selectable with solder-bridges, which function goes to which pin.

dfarrell:
How I see it the WiFi is on Atmel TXD0 and RXD0.  For hardware handshake to be effective it must use the RTS0 (PB25) and CTS0 (PB26). If this is done, then the PDC (DMA) will function with the handshake. Other means of emulating the handshake cannot respond (character by character).

Navigation

[0] Message Index

[#] Next page

[*] Previous page