Quote:
Originally Posted by Al Skierkiewicz
Kyle,
You would wire to a digital output but only use the black and white wires. Black to pin 3 and white to pin 2 on the Jag. The +5 volt line is not used. It appears that the jumper input on the Jag for coast and brake is either tied to +3.3 volts or power common. The data sheet for the controller chip does not seem to pull this input high so a pullup resistor (1k) from the Jag 3.3 volt pin (pin 1) to the center pin (pin 2) would likely be needed. Then simply program a digital output to be low for "brake" and high for "coast". we have used a similar method on Victors in the past but do not use Jaguars.
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The following is from the FAQ on Luminary Micro. Only the white wire on the DS DO needs to be connected to the center pin on the B/C connector. We are currently using this. The driver likes coast going over the bump and brake on the level field.
http://www.luminarymicro.com/jaguar
Quote:
Brake/Coast Interface
Q
What is the best connection for a dynamic brake/coast interface?
A
If you are using the CAN interface, the brake/coast jumper setting may be overridden, and therefore no electrical interface to the brake/coast pins is necessary.
Otherwise, if you are using a PWM (servo) interface, you can connect just the center pin of the brake/coast header to a digital source (e.g. for FRC users the digital side car). Note that you shouldn’t hook up a ground signal because you do not want this to act as a current return path to the battery. You want the current return path exclusively through the V‐ screw terminal.
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