/*
- Copyright 2009 Denver Gingerich (denver [at] ossguy [dot] com)
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
+ Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, and distribute this software
- and its documentation for any purpose and without fee is hereby
- granted, provided that the above copyright notice appear in all
- copies and that both that the copyright notice and this
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
NOTE: The user of this include file MUST define the following macros
prior to including the file:
- MAG_T1_CLOCK_PIN Pin connected to Track 1 clock wire (ie. PORTC1)
- MAG_T1_DATA_PIN Pin connected to Track 1 data wire (ie. PORTC2)
- MAG_T2_CLOCK_PIN Pin connected to Track 2 clock wire (ie. PORTC3)
- MAG_T2_DATA_PIN Pin connected to Track 2 data wire (ie. PORTC0)
- MAG_T3_CLOCK_PIN Pin connected to Track 3 clock wire (ie. PORTC5)
- MAG_T3_DATA_PIN Pin connected to Track 3 data wire (ie. PORTC6)
- MAG_CLS_PIN Pin connected to card loaded wire (ie. PORTC4)
- MAG_PIN PIN macro for the reader's port (ie. PINC)
- MAG_DDR DDR macro for the reader's port (ie. DDRC)
- MAG_PORT PORT macro for the reader's port (ie. PORTC)
+ MAG_T1_CLOCK_PIN Pin connected to Track 1 clock wire (i.e.. PORTC1)
+ MAG_T1_DATA_PIN Pin connected to Track 1 data wire (i.e.. PORTC2)
+ MAG_T2_CLOCK_PIN Pin connected to Track 2 clock wire (i.e.. PORTC3)
+ MAG_T2_DATA_PIN Pin connected to Track 2 data wire (i.e.. PORTC0)
+ MAG_T3_CLOCK_PIN Pin connected to Track 3 clock wire (i.e.. PORTC5)
+ MAG_T3_DATA_PIN Pin connected to Track 3 data wire (i.e.. PORTC6)
+ MAG_CLS_PIN Pin connected to card loaded wire (i.e.. PORTC4)
+ MAG_PIN PIN macro for the reader's port (i.e.. PINC)
+ MAG_DDR DDR macro for the reader's port (i.e.. DDRC)
+ MAG_PORT PORT macro for the reader's port (i.e.. PORTC)
The example macros listed above assume that the Track 2 data wire is
connected to pin 0 on port C, the Track 2 clock wire is connected to
pin 3 on port C (similarly for Tracks 1 and 3), and the card loaded
wire is connected to pin 4 on port C.
- If the magstripe reader you are using only reads one or two tracks,
+ If the mag-stripe reader you are using only reads one or two tracks,
then set the clock and data pins for the tracks it doesn't read to a
pin that is unused. For example, on the AT90USBKey, any of the pins on
port C that do not have wires attached will be unused since they are
not connected to any onboard devices (such as the joystick or
temperature sensor).
- Connecting wires to pins on different ports (ie. a data wire to pin 0
+ Connecting wires to pins on different ports (i.e.. a data wire to pin 0
on port C and a clock wire to pin 0 on port D) is currently
unsupported. All pins specified above must be on the same port.
*/
/* Public Interface - May be used in end-application: */
/* Inline Functions: */
- /** Initializes the magnetic stripe card reader ports and pins so that the card reader
+ /** Initialises the magnetic stripe card reader ports and pins so that the card reader
* device can be controlled and read by the card reader driver. This must be called before
* trying to read any of the card reader's status lines.
*/
static inline uint8_t Magstripe_GetStatus(void) ATTR_WARN_UNUSED_RESULT;
static inline uint8_t Magstripe_GetStatus(void)
{
- /* Magstripe IOs are active low and must be inverted when read */
+ /* Mag-stripe IOs are active low and must be inverted when read */
return ((uint8_t)~MAG_PIN & MAG_MASK);
}
#endif
+
projects / pub / USBasp.git / blobdiff