Difference between revisions of "Joystick Interface"
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If you're looking for how to '''use''' the joystick see the [[Joystick]] page. | If you're looking for how to '''use''' the joystick see the [[Joystick]] page. | ||
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*spi_usi - hardware based spi | *spi_usi - hardware based spi | ||
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Latest revision as of 21:54, 13 June 2018
If you're looking for how to use the joystick see the Joystick page.
Contents
Parts
Part numbers listed are those of the Digi Key Corporation parts database. Note - some generic parts do not have part numbers listed.
Processor
- ATTINY26-16SI-ND - U3 - Atmel AVR Microcontroller
- LED2 - Green LED for use by programs running on the microcontroller
- R3 - 470 ohm resistor in series with LED2
- R4 - 470 ohm pullup resistor for joystick DATA
- R5 - 470 ohm pullup resistor for joystick ACK
CAN Specific
- MCP2515 - U2 - Microchip CAN Controller with SPI Interface
- MCP2551 - U1 - Microchip CAN TransponderP966-ND
- R1 - 10k ohm pullup resistor for the RESET command
- R6 - 10k ohm pullup resistor for the CAN chip select
Onboard Power Control
- UA78M05DCY - U4 - 5V Linear Regulator
- 1N4004GICT-ND - D1 - Diode
- P966-ND - C1,C2 - 10 microfarad Capacitor
- 399-2127-ND - C3,C4,C5 - 0.1 microfarad Capacitor
- LED1 - Red LED to indicate power activity
- R2 - 470 ohm resistor in series with LED1
Oscillator
- 300-7022-1-ND - U4 - 11.0592 MHZ Clock Siqnal Oscillator
Headers
- A19423-ND - J1 - Power 2-pin header
- A19430-ND - J2 - CAN 3-pin header
- A19436-ND - J3 - 9 pin header to joystick
- A19520-ND - J4 - SPI connection to the MCU, 10 pin header
Misc.
- 377-1090-ND - Box to contain the module
- 1892K-ND - Standoffs
Electrical
Port Pin Assignments on MCU
* Port A: * Bit Dir Description * 0 I Pad DATA * 1 O Pad COMMAND * 2 O Pad ATT * 3 O Pad CLOCK * 4 I Pad ACK * 5 Unused * 6 Unused * 7 O Status LED * Port B: * Bit Dir Description * 0 I SPI data input, with pull-up * 1 O SPI data output * 2 O SPI clock * 3 O CAN /CS * 4 I Clock, not usable as I/O * 5 Unused * 6 I CAN INT * 7 I /RESET, not usable as I/O
Code
C Source Files
- can.c - communicates with the CAN controller, pretty much the same for all modules
- joystick.c - code that controls the joystick's inputs
- Makefile - programmer created file for configuring the compilation for gcc
- psx.c - code that interfaces with the psx controller
- spi_usi - hardware based spi
