armcan solderpad
A PCB with an AT91SAM7X128 processor with galvanically isolated CAN bus and power running off 24V DC.
oao.no/wpe/2009/12/arm-with-can-interface/Description
This board was designed for the purpose of processing messages transmitted over a CAN bus.
A PLC with moderate capabilities transmit a few variable values over the CAN-bus, this card process the values and transmits the result, which the PLC uses in it's own program execution. The response time for a PID-controller is less than 1 usec.
Features:
- CPU with 256 KB Flash
- Isolated 18-36 V DC supply
- Isolated power and CAN bus
- 2 USB ports, one for programming and one for serial port 0
- 1 TTL level serial debug port
- Serial number chip
- JTAG connector for debugging and programming
- 2 serial IIC EEPROMs
- Micro controller drives erase/reset signals for programming
Schematic
Board
Bill of Materials
| Designator | Value | Description |
|---|---|---|
| C1 | 10N | |
| C2 | NM | |
| C3 | NM | |
| C4 | 1N | |
| C5 | 4u7 | |
| C6 | 22N | |
| C7 | 22n | |
| C8 | 22N | |
| C9 | 22N | |
| C10 | 4u7 | |
| C11 | 22n | |
| C12 | 22n | |
| C13 | 100N | |
| C14 | 4u7 | |
| C15 | 22n | |
| C16 | 22N | |
| C17 | 4U7 | |
| C18 | 22N | |
| C19 | 22N | |
| C20 | 22N | |
| C21 | 4u7 | |
| C22 | 22N | |
| C23 | 22N | |
| C24 | 22N | |
| C25 | 4u7 | |
| C26 | 22n | |
| D1 | ||
| D2 | ||
| D3 | ||
| D4 | ||
| D5 | ||
| J1 | HARTING | |
| J2 | USBMINI | |
| J3 | MPL6 | HARTING |
| J4 | CON6 | |
| J5 | MTA100-5 | |
| J6 | 3pin | PIN HEADER |
| J7 | J7 | PIN HEADER |
| J8 | USBMINI | |
| L1 | 4U7 | |
| L2 | 51uH | |
| P1 | ||
| P2 | ||
| Q1 | PMOSGDS | |
| Q2 | PDTC144ET | |
| R1 | 47K | |
| R2 | 1K5 | |
| R3 | 2k2 | |
| R4 | 27k | |
| R5 | 2K2 | |
| R6 | 2K2 | |
| R7 | 2K2 | |
| R8 | 2K2 | |
| R9 | 47k | |
| R10 | 2k2 | |
| R11 | 27k | |
| R13 | 3k3 | |
| R14 | Polyswitch over current switch | |
| R15 | 27k | |
| R16 | 47k | |
| R17 | 330k | |
| R18 | 330k | |
| R19 | 0R | |
| S1 | BUTTON1 | |
| S2 | BUTTON1 | |
| U1 | FT232RLL | FTDI USB/UART |
| U2 | 82C251-SO | Phillips |
| U3 | ADUM1201 | |
| U4 | SAM7X256 | |
| U5 | 24LC64 | |
| U6 | LM1117-3.3 | |
| U7 | DS2401 | |
| U8 | 24LC64 | |
| U9 | LM1117-5.0 | |
| U12 | ||
| U13 | 10F200 | |
| X1 | ||
| Y1 | 18.4320/20P |
[JSON]
This project is © Odd Arild Olsen, and is published under the terms of the TAPR Open Hardware License, version 1.0 licence.