msp430f54 xx schematics
Hello!
1. MCU:
If you want it to be connected to a PC, you will need through USB, you will
need 1 USART.
If your RFID reader module is a serial device, then you'll need another USART
EEPROM works usually in I2C, therefore you will need a I2C capable USART.
Then finally if you want to use a graphical LCD, there are many options.
Some LCDs allow SPI input, in which case you need another USART.
The PC USB device works probably in UART mode
The EEPROM works in I2C
Let's assume that the LCD will work in SPI
Let's assume that the RFID reader works in one of the above 3 modes.
You can of course use a single uart and reconfigure it each time, but
programming will be a headache.
You may want to use a device with manu UARTs. The MSP430F54xx
may be an option (4 UART engines).
2. Communication between PC and USB:
If you use a TI device (the above MSP430F54xx) combined with their
USB chip (TUSB3410), then you have a full working source code for the
PC application. I recently used it, it works right out of the box.
When the hardware is done, send a byte and you will receive it on hyperterminal.
Send a byte from a PC application to ComX (the virtual port corresponding to
your device) and your device will receive it.
This document includes the schematics, for this application. **broken link removed**.
And in the above URL, if you replace pdf by zip, you will download the slaa276.zip
archive which contains the source code of the application.
3. "what is the construction in the frame pattern sent between Tag and Reader?"
I don't understand your question. If you meant the pattern of the bytes exchanged
between the tag and the reader, I think you should read the docs. All the maker
have probably their own standards, therefore no standards.
4. I don't know any book that would help you for that particular project.
Now a bit more about the MCU choice:
You want to use a graphic LCD, but that's not enough to choose your MCU.
The LCD I am using right now (2048 x 1152) is a graphic LCD. On my desk,
I have also 128x32 graphic LCDs.
**broken link removed**.
So you should also tell us the resolution and the depth (bits per pixel).
By experience, I can tell you that with 25 MHz MCU, you can easily drive
a 240 x 160, 5 bits per pixel LCD like
**broken link removed**.
Dora.
Aymanz87 said:
I am building an integrated RFID system capable of quickly identifying objects by their RFID tags. The system will be able to read and write Tags. Read data will be store in a Database through a Middleware.
I intend this system to be installed in Libraries. By automatically identifying the
Books and collecting their info ...
At the bottom u will find pix for the system block diagram and flowchart
I was wondering :
what MCU to use and how to make it support graphical LCD?
How the communication between PC and reader will work ... to read data and write tags ... what programing language to use ?
what is the construction in the frame pattern sent between Tag and Reader?
Do u got any links or books that can help me through this project?