2012/3/22 Peter C. Wallace <p...@mesanet.com>: > > You can check your converter by looping the RS-422 TX to RX > > (TX+ to RX+ TX- to RX-) > > and then togging the FPGA TX pin and seeing if the FPGA RX pin follows > (you would need to disable SSERIAL so you catn get contro of the pins as > GPIO = SSERIAL_PORT_0=XXXXXXXX) >
Here is what I did: 1) Soldered small wire between Tx+ and Rx+, as well as Tx- and Rx-; 2) In hm2-servo sample config, I added a line to specify that gpio.036 is output; 3) In HAL Config I watched gpio.034.in pin - it was "false"; 4) Then in "Show" tab I executed "setp hm2_7i43.0.036.out 1" 5) In "Watch" tab I observed that gpio.034.in had became "true" 6) Repeated the turning the output pin on and off several times, input pin followed it correctly; So my conclusion - that little converter is working. What else could I be missing to get 8i20 respond? Viesturs ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
