Thanks Charles, I have read 7i76 pins link and also about your DB25 daughter card(* https://blog.oshpark.com/tag/db25/ <https://blog.oshpark.com/tag/db25/>*). If I am not mistake,40 pins in DB25 daughter card P1 will connect to DE0-NANO-SOC JP1 GPIO 0, then split into 2 DB25 P2 and P3. >From the configs file, take one example, GPIO_0 pin 16, 17 (physic 17,18 because on board label from 1), means DIR and STEP which will connect to DB25 pin 1 and pin 14.
I use multi-meter to measure Pin 17 and GND, then run NC program moving X,Y,Z together, unfortunately no votage output from this pin. -chengxi On Sat, Mar 18, 2017 at 8:16 PM, Charles Steinkuehler < [email protected]> wrote: > The FPGA pin functions depend on which FPGA bitfile you load when > loading the hm2 driver. The driver will spit out a list of all the > functions it finds, but you can also refer to the configuration files > for each FPGA "flavor" in the source. The VHDL file defining the pins > has comments with the internal MESA I/O pin number, the Physical > DE0-Nano-SoC I/O connector pin, and the DB-25 pin (when used with my > DB25 daughter card). Here's the configuration for one 7i76, one > 7i85s, and two plain GPIO connectors. I've highlighted the 7i76 pins: > > https://github.com/machinekit/mksocfpga/blob/master/HW/hm2/ > config/DE0_Nano_SoC_DB25/PIN_7I76_7I85S_GPIO_GPIO.vhd#L111-L129 > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
