Attendance system

[robosang]

Yup, zhenning is correct, MPLAB IDE or MPLAB X IDE is just a IDE that allow you to edit code, call compilers to compile the code you wrote, integrate with ICD or program to load the hex produce after compiled to PIC microcontroller. All these process aiming to do 1 thing, prepare program for PIC Microcontroller. Same applied to Arduino IDE, write code, compile, load into Arduino board

Yes, you can use MPLAB X IDE on Linux (should be), but the aim never change, write code for PIC microcontroller.

From what I see, you have a long way to go, I am not familiar with Linux and ARM architecture/environment, cannot advise so much. Normally choosing a programming language will base on several factors:
1. Is the tools available for free? Like Arduino IDE and MPLAB IDE?
2. Is it user friendly? Or command base like a DOS? Which do you prefer?
3. Community support? When you get problem, where to get advice?
4. Of course, can it run on your platform? In this case the Linux on ARM.
5. Any particular limitations?

Looking at your system, you would really want to consider breaking down part to part. As advised by zhenning, is not possible to integrate subsystem once and hoping it would work like magic, it will not work So go and do more study.

[zhenning]

Ok lets say i wanted to send several set of commands to my fingerprint reader (which is a DSP processor) through UART. So,what is the best software for it? besides using terminal?

In linux, everybody uses terminal and makefile to compile a program. Just the terminal itself, it can compile c program without any add-ons like in windows.So, you would not be expecting as much software as in windows.

second is, i'm using webpage (which is created using PHP) as my GUI and i wanted to execute terminal function inside of it. Example like, when i press "start matching" button in my GUI, it send a set of command using terminal through the UART to the DSP processor. IS that possible?

Since you are using PHP already, why you need to find another software? What you need is to find out how to use PHP to output or grab data to the RS232. There are Serial classes for PHP. You can directly grab the data. I suggested terminal because you just mentioned you to just send command from ARM processor which runs in linux debian platform.

[Marvin_G]

Ok lets say i wanted to send several set of commands to my fingerprint reader (which is a DSP processor) through UART. So,what is the best software for it? besides using terminal?

In linux, everybody uses terminal and makefile to compile a program. Just the terminal itself, it can compile c program without any add-ons like in windows.So, you would not be expecting as much software as in windows.

second is, i'm using webpage (which is created using PHP) as my GUI and i wanted to execute terminal function inside of it. Example like, when i press "start matching" button in my GUI, it send a set of command using terminal through the UART to the DSP processor. IS that possible?

Since you are using PHP already, why you need to find another software? What you need is to find out how to use PHP to output or grab data to the RS232. There are Serial classes for PHP. You can directly grab the data. I suggested terminal because you just mentioned you to just send command from ARM processor which runs in linux debian platform.

Thank you so much with all your advice and others also. Appreciate it. Now i will study more about this and continue with my work. ^^,

[Marvin_G]

Ok lets say i wanted to send several set of commands to my fingerprint reader (which is a DSP processor) through UART. So,what is the best software for it? besides using terminal?

In linux, everybody uses terminal and makefile to compile a program. Just the terminal itself, it can compile c program without any add-ons like in windows.So, you would not be expecting as much software as in windows.

second is, i'm using webpage (which is created using PHP) as my GUI and i wanted to execute terminal function inside of it. Example like, when i press "start matching" button in my GUI, it send a set of command using terminal through the UART to the DSP processor. IS that possible?

Since you are using PHP already, why you need to find another software? What you need is to find out how to use PHP to output or grab data to the RS232. There are Serial classes for PHP. You can directly grab the data. I suggested terminal because you just mentioned you to just send command from ARM processor which runs in linux debian platform.

If i were only using terminal to send command like "0x250x230000CHK0xF5" to the DSP processor, what are the command i need to type? Under Linux this serial port is known as /dev/ttyAM0 but i'm not sure how to use it. How to grab data from serial port through terminal and retrieve as well?

[zhenning]

To read from the device use cat.
cat /dev/ttyUSB0

To write to the device use echo.
echo "command" > /dev/ttyUSB0

You need to change the user dialout group:

sudo usermod -a -G tty yourUserName

sudo usermod -a -G dialout yourUserName

[Marvin_G]

To read from the device use cat.
cat /dev/ttyUSB0

To write to the device use echo.
echo "command" > /dev/ttyUSB0

You need to change the user dialout group:

sudo usermod -a -G tty yourUserName

sudo usermod -a -G dialout yourUserName

Thank you so much for the information

[Marvin_G]

To read from the device use cat.
cat /dev/ttyUSB0

To write to the device use echo.
echo "command" > /dev/ttyUSB0

You need to change the user dialout group:

sudo usermod -a -G tty yourUserName

sudo usermod -a -G dialout yourUserName

erm..when i tried to read from the deive using cat, i didn't get any reply,why? supposed i'll received data with the same format command i sent. Why there's no command received?

[zhenning]

To read from the device use cat.
cat /dev/ttyUSB0

To write to the device use echo.
echo "command" > /dev/ttyUSB0

You need to change the user dialout group:

sudo usermod -a -G tty yourUserName

sudo usermod -a -G dialout yourUserName

erm..when i tried to read from the deive using cat, i didn't get any reply,why? supposed i'll received data with the same format command i sent. Why there's no command received?

Please pose your command? Did you change the dialout group?

[Marvin_G]

To read from the device use cat.
cat /dev/ttyUSB0

To write to the device use echo.
echo "command" > /dev/ttyUSB0

You need to change the user dialout group:

sudo usermod -a -G tty yourUserName

sudo usermod -a -G dialout yourUserName

erm..when i tried to read from the deive using cat, i didn't get any reply,why? supposed i'll received data with the same format command i sent. Why there's no command received?

Please pose your command? Did you change the dialout group?

echo "0xF5" > /dev/ttyUSB0..do i need to put the "" thing as well?

[Marvin_G]

To read from the device use cat.
cat /dev/ttyUSB0

To write to the device use echo.
echo "command" > /dev/ttyUSB0

You need to change the user dialout group:

sudo usermod -a -G tty yourUserName

sudo usermod -a -G dialout yourUserName

erm..when i tried to read from the deive using cat, i didn't get any reply,why? supposed i'll received data with the same format command i sent. Why there's no command received?

Please pose your command? Did you change the dialout group?

i'm using UC00B in linux. i think thats the problem. i need to install the driver i guess but i'm not really sure how. you know?