Hello Sean,
Thank you very much for taking an interest in my problem, when I know how busy you are with your superb contributions !!!
I no longer have a problem with 'Port_Fault' and I think I had a mass problem on the resistor bridge (100 and 200 ohms) which I added to protect the raspberry in the absence of optical isolation.
I connected the pwm (pin9) to the 'enable' of the H-Bridge and I observe proportional and brief reactions when the boat has a heading lower than the desired heading. Nothing however in the other direction!
I am enclosing a small diagram of my connections.
About Opencpn, forget what I asked you in my previous message because the default settings printed the figures in black on black (invisible therefore!), Which I corrected in the settings of Opencpn.
Thanks again for your help
Thierry
I retry to post my attachement
Thank you very much for taking an interest in my problem, when I know how busy you are with your superb contributions !!!
I no longer have a problem with 'Port_Fault' and I think I had a mass problem on the resistor bridge (100 and 200 ohms) which I added to protect the raspberry in the absence of optical isolation.
I connected the pwm (pin9) to the 'enable' of the H-Bridge and I observe proportional and brief reactions when the boat has a heading lower than the desired heading. Nothing however in the other direction!
I am enclosing a small diagram of my connections.
About Opencpn, forget what I asked you in my previous message because the default settings printed the figures in black on black (invisible therefore!), Which I corrected in the settings of Opencpn.
Thanks again for your help
Thierry
I retry to post my attachement