 DESCRIPTION |
Use MCS-51 MCU to make the controller to accomplish drive with the RC500 |
| Can operate the Mifare One |
| It is very few to
occup
resources (RAM ), only 19 byte, very favorable for reduction of cost |
|
Use RS232 and PC link to each other, through run DEMO process to operate the computer that can read and write the card. |
|
Can be used as Mifare one read and write device. |
| Integrated design (The antenna can be used alone) |
| Offered two sets of source code of C51 and A51 with same function. |
| |
INTRODUCTION
OF HARDWARE |
CPU adopt MCS51
|
| RF circuit include RC500 that produce of PHILIPS and RF antenna that set in the developboard |
| RS232 interface |
| |
INTRODUCTION
OF SOFTWARE |
|
PC DEMO PROCESS |
| |
Operate the developboard through inputting the
command, read the content in cards, show on the interface, or write the information imported to on the card.
|
|
DEVELOPBOARD PROGRAM |
| 1) |
Communication program |
| |
Intermit the receive and dispatch control, storage the information that received from the serial interface to the buffer, or send the information of the buffer area to the serial line.
|
| 2) |
Command process |
| |
Interpret of the received command |
| 3) |
Card operating program |
|
According to the received the command to operating the card, make use of exhausting possible few resource, not occupy the CPU'intermit, and assure the card can quit safely from function when move the area of the read and write in any time.
|
| Take the writing card function of the compilation for example : |
| Except a working register group, just occupy 1 digit of sign and 19 bytes EMS cell (include the 16 bytes are written into the data).Whether C51 or program of com-pilation may write into the 89C52, if not consider with occupy the PC communication resource, May even write into the 89C51.
|
| |
Include the function as follows : |
| Initialize RC500, seek card, defend collide, select card, switch format of the KEY, transmit KEY, validate KEY, deduct money and add money, move the wallet to the buffer area, copy the wallet of the buffer area, card dormancy, read RC500-EEPROM, write RC500-EEPROM, resume leave factory setting of RC500, tune the use-defined RC500, tune the KEY of RC500－EEPROM, startup the antenna, close up the antenna.
|
| |
CONTENT OF
THE PRODUCT |
1. |
A piece of developboard |
| 2. |
a piece of RS232 communication cable |
| 3. |
A sheet of CD: |
| 1) |
Chart of developboard |
| 2) |
Source codes of developboard process (C51and A51), KEIL project that has already been built up. |
| 3) |
PC DEMO process |
| 4) |
Communication protocol between the developboard and PC |
| 5) |
The way tune the antenna |
| 6) |
information of the chip |
| |
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