Automotive CANtroller
Car electronics exposed
This universal microcontroller board was designed, in the first instance, for use by students studying automotive technologies, but it can also be used for other applications, of course. The heart of this board is an Atmel AT90CAN32 with a fast RISC core.
In collaboration with the Timloto o.s. Foundation in the Netherlands, Elektor designed a special controller PCB, which will be used in schools in several countries for teaching students about automotive technologies. Particular attention was paid to issues such as universal design, cost, connection options, expandability and the availability of free development software for various platforms.
Materials
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
Elektor recommends the Elektor PCB Service service from its business partner Eurocircuits or AISLER as the best services for its own prototypes and volume production.
The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.
Extra info / Update
- Microcontroller: Atmel AT90CAN32
- Fast RISC -architecture with 133 instructions
- Clock speed: 12 MHz
- 32 KB flash, 2 KB RAM and 1 KB EEPROM available
- 53 programmable I/O lines
- Integrated CAN2.0 controller
- 8-channel 10-bit A/D converter
- SPI interface
- JTAG interface
- 2 USARTs
- Two-Wire interface
- 8 DIP switches and 8 LEDs available for experimental applications
- Power supply: 5 V @ 200 mA
Component list
R10 = 120 Ohm (SMD0805)
R2-R9,R13 = 330 Ohm (SMD0805)
R12 = 1kO (SMD0805)
R1,R11 = 10kO (SMD0805)
P1 = 10kO potentiometer (RK09K11310KB)
Capacitors
C1,C2,C3,C8-C11 = 100nF (SMD0805)
C4,C5 = 22pF (SMD0805)
C6 = 47µF 20V (CASE D)
C7 = 10µF 16V (CASE B)
Semiconductors
D1 = MBRS130 (SMB)
IC1 = AT90CAN32-16AU (TQFP-64)
IC2 = PCA82C251/N4 (SO8)
IC3 = LD1117S50CTR (SOT223)
LED1-LED9 = SMD LED (SMD0805)
X1 = 12MHz quartz crystal
Miscellaneous
JP1,JP2 = 2-way SIL pinheader + jumper
K1,K7 = 6-way DIL pinheader
K3 = 3-way SIL pinheader + jumper
K6 = 34-way DIL pinheader
K4 = right angled 6-way SIL pinheader
K5 = DC adapter connector
K2 = right angled 9-way sub-D plug (male), PCB mount
S0-S7= one 8-way DIP switch
S8 = pushbutton
Kit of parts, contains SMD-prestuffed board and all through-hole components. Elektor Shop # 080671-91
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