Print Page - Read a RFID Card using Wiegand protocol

Title: Read a RFID Card using Wiegand protocol
Post by: vitalianoneto on April 04, 2014, 12:12:15 AM

Hi,

I'm trying to read a RFID Card using the Wiegand protocol, but I couldn't make the pin to read the Input fast as the Wiegand requires.

Other alternative is to set 2 pins to Interrupt mode, but I don't know how to do this in C/C++.

Has anyone used the A20 to use IO fast, in the microseconds scale?

Thanks in advance,
Vitaliano

Title: Re: Read a RFID Card using Wiegand protocol
Post by: MBR on April 04, 2014, 07:38:36 PM

There is an article about Fast GPIOS already - see https://www.olimex.com/forum/index.php?topic=436.0 (https://www.olimex.com/forum/index.php?topic=436.0).

Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: vitalianoneto on April 04, 2014, 12:12:15 AM