LATA Switch

See: http://sourceforge.net/projects/lata



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See also USB&lt;-&gt;CAN documentation here: http://www.mictronics.de/projects/usb-can-bus/ (info on programing the hardware on these devices is here: USB-CAN)

Key info from this doc is:

TiiiiiiiiLDDDDDDDDDDDDDDDD[CR] This command transmits an extended 29 Bit CAN frame. It works only if controller is in operational mode after command &ldquo;O&rdquo;.

Return: [CR] or [BEL]
 * iiiiiiii Identifier in hexadecimal (00000000-1FFFFFFF) i.e. 100000BD in our example above
 * L Data length code (0-8) i.e. 2 in example above
 * DD Data byte value in hexadecimal (00-FF). Number of given data bytes will be checked against given data length code. e.g. 64 hex = 100% (i.e. on) and 00 hex is 0% (i.e. off) in our example above

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'V' - returns the version of the USB&lt;-&gt;CAN device
 * LATA CAN in minicom terminal:

'S4' - sets the comms rate (125K) Don't forget this!

'O' - sets the right mode

The fist byte is the Command: The 2nd byte in this example is either:
 * 100 (0x64) = CMD_SWITCH_TO
 * 101 (0x65) = CMD_QUERY_CIRCUIT
 * 102 (0x66) = CMD_PULSE
 * 0x64 = 100% (i.e. on)
 * 0x00 = 0% (i.e. off)

JF2 M2 Power + CAN CAT5 pins
LATA CANBUS terminator is a CAT5 plug with a 120 Ohm resistor between pins 1 and 2 (CANL and CANH).
 * [[Image:JF2_M2_PowerCAN.png|JF2_M2_PowerCAN.png]]

Lata switch on dev kit at software freedom day:
 * TechShowRoom:

T1000009D26464 T1000009D26400 T1800009D165 T1000009D26400