Freerunner RFID Board - Revision history

Hns: fixed link to U-Boot source file

2011-05-19T09:35:05Z

fixed link to U-Boot source file

Hns: /* Features */

2011-04-11T14:09:26Z

‎Features

Hns: /* User Reports */

2011-04-10T08:50:51Z

‎User Reports

Hns: /* Pinout */

2011-04-07T18:40:24Z

‎Pinout

Hns: /* Pinout */

2011-04-07T18:38:36Z

‎Pinout

Hns at 17:14, 7 April 2011

2011-04-07T17:14:56Z

Hns: /* Pinout */

2011-04-07T17:09:15Z

‎Pinout

Hns: /* Features */

2011-04-07T17:08:51Z

‎Features

Hns: /* Expansion pads */

2011-04-07T17:02:44Z

‎Expansion pads

Hns: /* Pinout */

2011-04-07T17:00:55Z

‎Pinout

@@ Line 1: / Line 1: @@
 [[Image:FRIDBTopBottom.JPG|Freerunner RFID Board|thumb]]
-NOTE: This is work in progress and quite incomplete
+NOTE: This page is work in progress and quite incomplete. If you want to improve, please volunteer.
 =Features=
@@ Line 111: / Line 111: @@
 on a BeagleBoard and supports "SPI without SS" by using GPIO mode.
-Link: http://projects.goldelico.com/p/fridb/source/tree/master/u-boot
+Link: http://projects.goldelico.com/p/gta04-uboot/source/tree/gta04e/board/goldelico/beagle-expander/trf7960.c
 ===Kernel drivers===

@@ Line 23: / Line 23: @@
 The Tag module fits into the area above the SIM/SD card reader of the Openmoko Freerunner.
 It is up to you to wire the board to the Freerunner main board in a way that you can still swap SD cards and/or SIM cards.
 == RFID-Reader ==
@@ Line 29: / Line 33: @@
 The Reader module fits into the area above the SIM/SD card reader of the Openmoko Freerunner.
 It is up to you to wire the board to the Freerunner main board in a way that you can still swap SD cards and/or SIM cards.
 == both ==

@@ Line 144: / Line 144: @@
 = User Reports =
-Please write to the discussion page.
+Please write to the [[Talk:Freerunner_RFID_Board|discussion page]].
 [[Category:Neo FreeRunner reworks and mods]]

@@ Line 39: / Line 39: @@
 ==Pinout==
 [[Image:FRIDB-Pinout.jpg|Pinout: Bottom side, Top side|thumb]]
 [[Image:I2C-testpoints.png|I2C testpoints|thumb]]
 === RFID Tag ===
 * '''ANT1''', '''ANT2''' (TP27, TP28): solder two wires to connect the antenna

@@ Line 43: / Line 43: @@
 [[Image:FRIDB-Pinout.jpg|Pinout: Bottom side, Top side|thumb]]
 [[Image:I2C-testpoints.png|I2C testpoints|thumb]]
-* '''VCC''': +3.3V, available at the AUX-Switch
-* '''VIO''': +1.8 V - +3.3V, available at the AUX-Switch
+=== RFID Tag ===
 * '''GND''': Ground, available from the (big) decoupling capacitor next to the accelerometer
-* '''SCL''', '''SDA''': Serial clock and data, get it from testpoints at the debug connector
+* '''ANT1''', '''ANT2''' (TP27, TP28): solder two wires to connect the antenna
-* '''OE''': Output enable from the frequency generator. Pull this pin high to enable the CLK output
+* '''VCC''' (TP8): +1.8V - +3.3V, available at the AUX-Switch
-* '''CLK''': Clock output from the frequency generator.
+* '''SCL''', '''SDA''' (TP18, TP9): Serial clock and data, get it from testpoints at the debug connector
-* '''LED controller 0-3''': LED current sinks. Connect LEDs in series with current limiting resistors from VCC to these pads.
+* '''GND''' (TP19): Ground, available from the (big) decoupling capacitor next to the accelerometer
-* '''12-Bit A/D 0-3''': Analog to digital converter inputs. They can operate single ended or differencial. The reference voltage is VCC.
+* '''EN0''', '''EN1''' (TP24, TP23): select address; usually connect to GND (I2C address 0x50)
-* '''Touch electrodes 0-6''': Connect these pads to a larger conducting area to use it as touch sensor. The inputs 0-3 can also be used to drive LEDs. Refer to the datasheet for more information.
 [[Image:FRIDB-top.JPG|Top side with the M24LR64 and the TRF7960|thumb]]

@@ Line 66: / Line 66: @@
 ===Software installation===
@@ Line 77: / Line 74: @@
 ==Software==
 ===U-Boot driver===
-some C-code for a U-Boot API is available to do some preliminary SPI communication (e.g. read/write registers).
+some C-code for a U-Boot API is available to do some preliminary SPI communication (e.g. read/write registers). It is tested
 Link: http://projects.goldelico.com/p/fridb/source/tree/master/u-boot
 ===Kernel drivers===
 Upcoming.
 ===Userspace software===

@@ Line 8: / Line 8: @@
 So you can make the Freerunner either a RFID tag (e.g. to open doors) or a RFID reader (to read/write standard tags e.g. in credit card format).
 The board comes with three parts that can/must be separated:
-Either the Tag or the Reader module fits into the area above the SIM/SD card reader of the Openmoko Freerunner.
+== Antenna ==
-The antenna can be fixed by tape instead of the battery cover or mounted externaly.
+The antenna is a printed loop designed for a typical center frequency of 13 MHz with a capacitor of 56pF.
 It is up to you to wire the board to the Freerunner main board in a way that you can still swap SD cards and/or SIM cards.
-The FRIDB can also connected to other Microcontrollers and SoC (e.g BeagleBoard) since it has splitted I/O and power supply.
+== RFID-Reader ==
 =Documentation=

@@ Line 20: / Line 20: @@
 The FRIDB can also connected to other Microcontrollers and SoC (e.g BeagleBoard) since it has splitted I/O and power supply.
-===Expansion pads===
-The supply voltage as well as the SPI / I2C bus is routed to testpads at the end of the board.
 =Documentation=