encoder test

[drubed]

hello, I am just starting a project on a four axis machine using brush servo motors with single ended encoders. I have the Kfop and Kanalog boards I am planning on using the machines existing amplifiers and power supply, I was trying to just do a quick test for encoder input I attached channel A and B to the Kanalog J1 pin 1 & 3 and did not see anything from the encoder, read some threads on this forum and realize that I will not see single ended encoders connected in this manner and I need to connect directly to the Kflop but the thread said connect to J5 and according to the board layout shows this as the RJ45 connector.
I also am not sure how to setup the Kmotion to see the counts

[TomKerekes]

Yes KFLOP has single ended encoder inputs on JP7 and JP5. JP5 is an RJ45 connector. See here. These encoder inputs can be multiplexed over to JP4 and JP6 by executing this:

Code: Select all

	// Mux encoder inputs from KFLOP JP7 & JP5 to JP4 and JP6
	FPGAW(ENC_NOISE_FILTER_ADD) = ENC_0_3_JP4 + ENC_4_7_JP6 + ENC_NOISE_FILTER_DEFAULT_VAL; 

[drubed]

can I write it like this so all my encoder inputs go to JP4

// Mux encoder inputs from KFLOP JP7 & JP5 to JP4 and JP6
FPGAW(ENC_NOISE_FILTER_ADD) = ENC_0_7_JP4 + ENC_NOISE_FILTER_DEFAULT_VAL;

For test purpose can I use the VDD5 on pin 1 to power the encoder

[TomKerekes]

No the hardware only supports moving channels 0-3 to JP4. Besides 8 encoders would require 16 inputs as each encoder has an A and B signal. JP4 only has 10 I/O.