WDT - Python how to use

[macmack5]

import wdt
x = wdt.getDefaultPeriod()
print (x)
q = setPeriod(10)
print (q)
y = wdt.getPeriod()
print
z = wdt.getVrasp()
print (z)

output:
-1
-1
-1
-1

I don't seem to be talking to the watch dog timer?

 

[alexburcea]

Is the watchdog working with the "wdt" command?

 

[macmack5]

Help me out, I don't know what you mean?

 

[macmack5]

If you mean at command prompt, it returns
wdt: command not found

 

[macmack5]

install Successfully installed SMwdt -1.0.2

 

[macmack5]

bash: wdt: command not found

 

[alexburcea]

Follow the instructions from here to install it.

 

[macmack5]

git clone https://github.com/SequentMicrosystems/wdt-rpi.git
cd wdt-rpi/
sudo make install

now the command wdt works, including in the virtual python.

program still returns -1 to all commands

 

[macmack5]

example usage:

wdt -g p
Fail to select mem add

 

[alexburcea]

did you enable the i2c port?

 

[alexburcea]

and do you have the watchdog card connected?

 

[macmack5]

Yes, using the industrial automation card

 

[macmack5]

The megaind.wdtGetPeriod(0) does return 270

 

[alexburcea]

You have to use both python and command line for the industrial.

 

[macmack5]

ok, now on another pi, with 16 relays card and platinum RDT card, wdt command installed as above, still get "Fail to select men add"

 

[macmack5]

and python wdt.getPeriod() returns -1

 

[macmack5]

so how do I get python to work with the other cards?

 

[macmack5]

I have the industrial working....Python

 

[alexburcea]

The wdt command is for the product :

Super Watchdog HAT with UPS Battery Backup for Raspberry Pi​

only.
For each card that has a watchdog function, you have to use the card-specific command or drivers to access it.

 

[macmack5]

No need to yell. Where are the card specific commands for the 16 relay, thermocouple, and RTD?