Hello everyone! I have a project with Mini2440Kit to PID Control a Motor. But, I've just done it with Pic16F887 and Laptop to display speed and set up P, I, D values. I have no idea where I can begin with this Kit. Anyone could give me some recommendations. Thank you.
Hello! Maybe you look at StartOS. It's easy.
hi, If you already familiar with C/C++, test2440 is the best source with ADS 1.2. Modify the routines, add desire code and have a fun.
Thank you Anatoliy and Shahid. I read test2440 and reviewed StartOS. And now, I design this model (attachment). I wonder is it possible to do that? Should I use GPIO (as shown in picture above) or Serial COM port to transfer parameters to another kit, ex: PIC to control the motor? Thanks for reading my topic.
I do not think its possible to read the encoder only by software. What is the max frequency of the encoder ? Have a look at for example dspic30F4012. quadrature decoder, pwm onboard. Regards Luc
@Luc: thanks for your advice. the encoder has 200 pulses/round & the max-speed of the motor is 3000rpm. So, it about <=10KHz ? Is it possible? If not, should I use COM port to communicate between Mini2440 (the master) and the another MCU (my MCU: AMR 3-Cortex LPC1769)? The mini2440 will have a GUI to display the status of the motor & recieve set-speed(from users) to transfer to the above MCU. Is it possible? Thank you everyone for reading this topic.
Cuongle, I think this is the only correct way to do it.The LPC1769 has all the hardware onboard so a loop with very short cycle time is possible to do the PID loop controlling the motorspeed and -position.
yeah, thank you Luc. I decided to choose option 2 (Kit2440 vs LPC1769). I used to control the motor by using LCP1769 and my laptop. I created a GUI on the laptop to display status of the motor and transmit parameters to LPC1769 (ex: set-speed) via UART. But,I am very new to embedded systems. Hoping anyone help me some samples about how to create a GUI on mini2440 and how to write a UART-driver for this KIT to comunicate with LPC1769. Thank you very much.
http://wingston.wordpress.com/embedded-programming-on-the-mini2440-using... you can check that link out to learn how to write C code and get it running on the mini2440 in the most hassle-free and extendable way possible.. let me know if you need any more help..