Arduino Open Source X-PID firmware incl.360°option

[tronicgr]

Probably. It depends if you are using HEX or Binary. HEX is twice the length and the buffer might run out if not emptied in time.

[sirnoname]

I will get into it tomorrow,
n8t

[sirnoname]

http://binglongx.wordpress.com/2011/10/ ... unication/

Given the design of Arduino architecture, generally the controller runs the foreground code in loop(). When an interrupt happens, the foreground code is suspended and the corresponding interrupt service handler (ISR) is run. If the controller is running an ISR and another interrupt happens, the new interrupt’s ISR is not run until the current ISR returns (no interrupt on interrupt). Because the UART has 3-char buffer, this means if another ISR is ongoing and does not return timely, when the UART ISR runs it could be too late and a new character could have been lost if the 3-char buffer is full. From the perspective of code, one character is missing in the received characters. This is called UART buffer overflow. HardwareSerial then reads the received characters and puts them in its 32 or 128 buffer for client fetching, often from loop(). If this buffer is full, the character is not stored and is discarded, and therefore it is another chance to have a missing character from the perspective of HardwareSerial user. This is called HardwareSerial buffer overflow.

This is hard! 3 bytes OK, my 4 bytes are a big problem. Now I have to find out why the ISR is delayed and why the UNO R3 is working good.

[sirnoname]

http://mekonik.wordpress.com/2009/03/02 ... ry-serial/

[wptm]

Hello Friends,

Can you please look if the following dual h-bridge
http://www.ebay.com/itm/New-3-36V-Dual-H-Bridge-DC-Motor-Driver-Peak-60A-Controller-for-Robot-Smart-Car-/221187919149?pt=LH_DefaultDomain_0&hash=item337fd3cd2d
is compatible with this topic's Arduino solution? It costs with shipping $ 30,98.

Thanks!

[sirnoname]

Yes, one inp pin is not used and the script must be changed to PWM 0 instead of 255 as written in a former post.
It should also work with other prilads firmware but must be checked.

[prilad]

Can you please look if the following dual h-bridge
http://www.ebay.com/itm/New-3-36V-Dual-H-Bridge-DC-Motor-Driver-Peak-60A-Controller-for-Robot-Smart-Car-/221187919149?pt=LH_DefaultDomain_0&hash=item337fd3cd2d
is compatible with this topic's Arduino solution?

Yes, It should be work, I agree with Sirnoname.

[wptm]

Thank you Sirnoname and Prilad! I've ordered it, as well as the Arduino UNO R3. I'm already investigating XPID.ino file.
In the time they will be delivered, I want to understand this script.
Do you mean Sirnoname that in function: void SetPWM()
analogWrite(PWMPinM1, 255); need to be analogWrite(PWMPinM1, 0); , as well as for PWMPinM2 ?

Regards,
wptm

[sirnoname]

You got it!

[rohithkumar]

Hello every one,

I am happy that i found this post
I have recently started working on 2DOF scaled version. Can any one please provide me X-PID interface plugin for X-sim???