solderpad's avatar

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/

Recent activity:

  • 9600 updated6 years ago
  • psd updated6 years ago
  • psd updated6 years ago
  • psd updated6 years ago
  • psd schematic processed6 years ago
  • psd board processed6 years ago

Tagged with

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]

Files

This project is © Odd Arild Olsen, and is published under the terms of the TAPR Open Hardware License, version 1.0 licence.