Mesa 7i95

Hey Peter,
I need to pick your brain again.
Trying to use I/O 55, 56, 57 as outputs but they do not exist it says.
What am I missing?

26 bit OUT FALSE hm2_7i95.0.gpio.054.in
26 bit OUT TRUE hm2_7i95.0.gpio.054.in_not
26 bit IN FALSE hm2_7i95.0.gpio.054.out <== spindle-enable
26 bit OUT FALSE hm2_7i95.0.gpio.055.in
26 bit OUT TRUE hm2_7i95.0.gpio.055.in_not
26 bit OUT FALSE hm2_7i95.0.gpio.056.in
26 bit OUT TRUE hm2_7i95.0.gpio.056.in_not
26 bit OUT TRUE hm2_7i95.0.gpio.057.in
26 bit OUT FALSE hm2_7i95.0.gpio.057.in_not
26 bit IN FALSE hm2_7i95.0.gpio.057.out

 

You would need to set the "is_output" parameter for those pins

Note that if you are using bare FPGA pins on the expansion connector
you should be careful what they are connected to, and at the minimum
add a 100 Ohm series resistor if they could accidentally contact frame
ground.

When I set "is_output" it says that they do not exist.
it works fine eg. gpio.54 but not with 56 and 55.

I have an opto coupler board on P1 with inline dropping resistors 1k5

Actually I have enabled PWM on IO 52, 53 would that have anything to do with this issue?
 

Probably, if 55,56 are owned by the PWMgen

using the --readhmid option with mesaflash should show you what pins is
associated with what function

it should not be used by PWM as far as I understand 

                                                                                        --    Expansion port
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 41   PIN 1
        IOPortTag & x"00" & NullTag & x"00",                                -- I/O 42   PIN 14
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 43   PIN 2
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 44   PIN 15
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 45   PIN 3
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 46   PIN 16
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 47    PIN 4
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 48   PIN 17
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 49   PIN 5
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 50   PIN 6
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 51   PIN 7
        IOPortTag & x"00" & PWMTag & PWMAOutPin,                       -- I/O 52   PIN 11
        IOPortTag & x"00" & PWMTag & PWMBDirPin,                       -- I/O 53   PIN 12
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 54   PIN 10        
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 55   PIN 8
        IOPortTag & x"00" & NullTag & x"00",                                 -- I/O 56   PIN 9
        IOPortTag & x"00" & NullTag & x"00",                               -- I/O 57   PIN 13

I dont have it here on me so I can not try anything, I just wanted to pre-empt for tomorrow.

Maybe a name type-o?

halcmd show param hm2_7i95.0.gpio

(in a terminal when LinuxCNC is running)

Should show all the GPIO parameters