mesa 7i90hd

hi everyone
after a long time i turned my cnc back on.
the 7i43 that was installed above after a few days shows no signs of life.
no big deal i have a 7i90hd bought many years ago in a drawer.
i make changes to the wiring, because the stepper outputs of the 7i90hd do not match those of the 7i43. with pncconf i put, on the pins that were left free in the same connector, all the various IO functions.
i start linuxcnc and all the various functions work but the step generation does not work.
the interface card between the 7i90hd and the outside world is a 7i42TA and with the 7i43 it worked perfectly.
i mounted the 7i90 as i bought it; I've had it for many years and I don't remember if I tried to modify the firmware then... and in any case I put it in a drawer because there was no option in pncconf and I couldn't configure it manually.
the firmware version that pncconf gives me is SVST1_4_2x7i47s.
what could have happened?
do I have a faulty firmware?
how can I fix it?
ciao
Roberto

You can read the current firmware pinout and change the installed firmware with mesaflash

something like:

sudo mesaflash --device 7i90hd --epp --addr 0x378 --readhmid

To read the currents firmwares pinout.

or

sudo mesaflash --device 7i90hd --epp --addr 0x378 --write 7i90_epp_svst8_12_2x7i47.bit

To change the firmware to 7i90_epp_svst8_12_2x7i47.bit






 

thank you very much
i loaded the new firmware and everything works.
in the folder that i downloaded from the official mesanet site i saw that there are many .bit files
is there a way to know what the various configurations do?
i searched around a bit but i didn't find anything...
ciao
Roberto

There's a rough key in the firmware names

ST stepper
SV servo (= PWM/Encoder)
SS Smart Serial
UA UART

And then numbers indicating how many of each kind of module is included

You could make a script with mesaflash to create matching pinout  files

somethign like:

sudo mesaflash --device 7i90hd --epp --addr 0x378 --write $1.bit --reload
sleep 3
sudo mesaflash --device 7i90hd --epp --addr 0x378 --readhmid > %1.pin

Just make sure you just write epp configurations...

 

ok I understand the philosophy
last year, when I needed to use the RC_gen functionality, maybe you, the ad hoc file was created for me... I thought that the various .pin files had already configured all the features that are listed on the hostmot2 page of linuxcnc
thanks again for your availability
ciao
Roberto