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RPi3 IX & QX error [message #1756235]

Tue, 14 March 2017 12:05

Adrian Orive

Messages: 38
Registered: March 2017

Member

I installed FORTE on a RPi3 following Building FORTE on the RPI section here.

NOTE: bin/posix/ dir was empty, the src/ dir was at org.eclipse.4diac.forte/ dir directly.

After executing FORTE, I was able to deply the app in the link provided and by monitoring E_SR's Q I can see how it toggles properly but the led is not blinking nor the button turns it off. Forcing true at E_SWITCH_0's G stops E_SR's stopped, and clearing the force allows it to toggle again.

So the IX and QX blocks are the ones not working. Their QO are set to false and their status to COULD NOT READ/WRITE depending on their type.

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Re: RPi3 IX & QX error [message #1756280 is a reply to message #1756235]

Tue, 14 March 2017 21:41

Alois Zoitl

Messages: 1585
Registered: January 2014

Senior Member

As pointed out already somewhere in the forum. The current implemetnation for IOs on the Raspi requires read and write access to the sysfs. This is located under: /sys/class/gpio/
Normally not all users have access to this part of the file system. So in order to get the IO acess working you need to run FORTE as root/sudo, which I would not recommend or add the user you are running FORTE with to the group that has access to this part of the filesystem.

I hope this helps,
Alois

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