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Patrick Fallberg f5ef712308 Support for WIZnet W5100 ethernet module SPI_EN

The W5100 module has a SPI_EN signal that enables or disables the SPI
bus.
A bug in the module causes MISO to be continously driven by the module
when SPI_EN is pulled high. This is described in this application note:
https://www.google.se/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CCAQFjAA&url=http%3A%2F%2Fwww.wiznet.co.kr%2FUpLoad_Files%2FReferenceFiles%2FW5100_AN_SPI.pdf&ei=ij84VK7uM6nNygPqvICYDw&usg=AFQjCNGz1qttBEwG1azc1Eza4j69v1rpDQ&sig2=UUUtb4Dr0F35g8ByHMsyig&bvm=bv.77161500,d.bGQ

This commit changes the Ethernet gateway sketch to drive SPI_EN high or
low, depending on which module is in use (SPI bus is shared between
Ethernet and RF modules).
The pin attached to SPI_EN is defined by W5100_SPI_EN. This define can
be commented out if SPI_EN is not needed (different module) or if the
module manages SPI_EN in hardware (some W5100 shields does this).

2014-10-10 22:39:47 +02:00

Bootloader

Added technical details for controller developers regarding OTA bootloader

2014-09-07 23:58:16 +02:00

libraries

Support for WIZnet W5100 ethernet module SPI_EN

2014-10-10 22:39:47 +02:00

NodeJsController

Added technical details for controller developers regarding OTA bootloader

2014-09-07 23:58:16 +02:00

.gitattributes

Adding git attributes for handling lineendings