Lapic error causing real time to stop.
20 Jan 2016 10:50 - 20 Jan 2016 10:51 #68806
by andypugh
With the right bitfile that is likely to be OK.
The only "special" pins are the stepgens and the spindle PWM (and potentially the watchdog, but I rather expect that that will work at 500Hz)
The DMM bitfiles are close, in that they have the step and dir pins the right way round.
If you don't already have it, you can download the files from:
www.mesanet.com/software/parallel/5i25.zip
If you extract the archive then you can look through the .pin files to find one that matches your driver.
5i25_dmmbob1x2.bit looks like this:
It has spindle PWM on pin one and quadrature counters on pins 11/12/12 however if you set num_pwm to 0 and num_encoders to 0 then those pins become GPIO.
With a software-generated watchdog on pin 16 you should then be able to move the axes. Unfortunately you will almost certainly need a custom firmware to run the spindle as I have not been able to find a stepgen firmware with PWM on pin 17.
Replied by andypugh on topic Lapic error causing real time to stop.
I think the problem is that you are connecting the 5i25 direct to the DB25 plug on the controller as if it was a parallel port.
With the right bitfile that is likely to be OK.
The only "special" pins are the stepgens and the spindle PWM (and potentially the watchdog, but I rather expect that that will work at 500Hz)
The DMM bitfiles are close, in that they have the step and dir pins the right way round.
If you don't already have it, you can download the files from:
www.mesanet.com/software/parallel/5i25.zip
If you extract the archive then you can look through the .pin files to find one that matches your driver.
5i25_dmmbob1x2.bit looks like this:
IO Connections for P3
Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir
1 0 IOPort PWMGen 0 PWM (Out)
14 1 IOPort None
2 2 IOPort StepGen 0 Dir (Out)
15 3 IOPort None
3 4 IOPort StepGen 0 Step (Out)
16 5 IOPort None
4 6 IOPort StepGen 1 Dir (Out)
17 7 IOPort None
5 8 IOPort StepGen 1 Step (Out)
6 9 IOPort StepGen 2 Dir (Out)
7 10 IOPort StepGen 2 Step (Out)
8 11 IOPort StepGen 3 Dir (Out)
9 12 IOPort StepGen 3 Step (Out)
10 13 IOPort None
11 14 IOPort QCount 0 Quad-A (In)
12 15 IOPort QCount 0 Quad-B (In)
13 16 IOPort QCount 0 Quad-IDX (In)It has spindle PWM on pin one and quadrature counters on pins 11/12/12 however if you set num_pwm to 0 and num_encoders to 0 then those pins become GPIO.
With a software-generated watchdog on pin 16 you should then be able to move the axes. Unfortunately you will almost certainly need a custom firmware to run the spindle as I have not been able to find a stepgen firmware with PWM on pin 17.
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