StrongLink SL025M User manual

RFID MODULE
Mifare Reader / Writer
SL025M
User Manual
Version 1.5
Sept. 2013
StrongLink

StrongLink SL025M
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2
CONTENT
1. MAIN FEATURES................................................................................ 3
2. PINNING INFORMATION.................................................................. 4
3. BAUD RATE SETTING........................................................................ 5
4. COMMUNICATION PROTOCOL...................................................... 5
4-1. Communication Setting ........................................................................ 5
4-2. Communication Format ........................................................................ 5
4-3. Command Overview............................................................................. 6
4-4. Command List ...................................................................................... 7
4-4-1. Select Mifare card.............................................................................. 7
4-4-2. Login to a sector................................................................................ 7
4-4-3. Download Key into SL025 ................................................................ 7
4-4-4. Login sector via stored key................................................................ 8
4-4-5. Read a data block .............................................................................. 8
4-4-6. Write a data block.............................................................................. 8
4-4-7. Read a value block............................................................................. 8
4-4-8. Initialize a value block....................................................................... 9
4-4-9. Write master key (key A)................................................................... 9
4-4-10. Increment value ............................................................................... 9
4-4-11. Decrement value.............................................................................10
4-4-12. Copy value .....................................................................................10
4-4-13. Read a data page (UltraLight).........................................................10
4-4-14. Write a data Page (UltraLight)........................................................11
4-4-15. Manage Red Led.............................................................................11
4-4-16. Get firmware version......................................................................11

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1. MAIN FEATURES
•Tags supported: Mifare 1k, Mifare 4k, Mifare UltraLight and NFC
NTAG203
•Auto-detecting tag, Built-in antenna
•UART interface on COMS level, baud rate 9,600 ~ 115,200 bps
•4.4 ~ 12.0VDC power supply
•Work current less than 80mA
•Operating distance: Up to 70mm, depending on tag
•Storage temperature: -40 ºC ~ +85 ºC
•Operating temperature: -25 ºC ~ +70 ºC
•Dimension: 80 × 55 mm
•Two LEDs, green led is auto light when tag in detection range, red led
is controlled by host
•The OUT pin at low level indicates tag in detective range, and high
level indicating tag out

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4-. PINNING INFORMATION
PIN
SYMBOL
TYPE
DESCRIPTION
1 TagSta Output
Tag detect signal
low level indicating tag in detection range
high level indicating tag out
2
TXD
Output
Serial output port
3
RXD
Input
Serial input port
4
VCC
PWR
Power Supply
5
GND
PWR
Ground

StrongLink SL025M
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4-. BAUD RATE SETTING
Two 820 ohm resistances R6 & R7 are used for setting baud rate as follows sheet
R6
R7
Baud rate bps
Assembled
no
no
9,600
yes
no
19,200
no
yes
57,600
yes yes
115,200
( default )
4. COMMUNICATION PROTOCOL
4-1. Communication Setting
The communication protocol is byte oriented. Both sending and receiving bytes are in
hexadecimal format. The communication parameters are as follows
Baud rate: 9,600 ~ 115,200 bps
Data: 8 bits
Stop: 1 bit
Parity: None
Flow control: None
4-2. Communication Format
Host to SL025:
Preamble
Len
Command
Data
Checksum
Preamble: 1 byte equal to 0xBA
Len: 1 byte indicating the number of bytes from Command to Checksum
Command: 1 byte Command code, see Table 3
Data: Variable length depends on the command type
Checksum: 1 byte XOR of all the bytes from Preamble to Data
SL025 to Host:
Preamble
Len
Command
Status
Data
Checksum
Preamble: 1 byte equal to 0xBD
Len: 1 byte indicating the number of bytes from Command to Checksum
Command: 1 byte Command code, see Table 3
Status: 1 byte Command status, see Table 4
Data: Variable length depends on the command type.
Checksum: 1 byte XOR of all the bytes from Preamble to Data

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4-3. Command Overview
Tab le 3
Command
Description
0x01
Select Mifare card
0x02
Login to a sector
0x03
Read a data block
0x04
Write a data block
0x05
Read a value block
0x06
Initialize a value block
0x07
Write master key (key A)
0x08
Increment value
0x09
Decrement value
0x0A
Copy value
0x10
Read a data page (UltraLight & NTAG203)
0x11
Write a data page (UltraLight & NTAG203)
0x12
Download Key
0x13
Login sector via stored Key
0x40
Manage Red Led
0xF0
Get firmware version
Status Overview
Tab le 4
Status
Description
0x00
Operation succeed
0x01
No tag
0x02
Login succeed
0x03
Login fail
0x04
Read fail
0x05
Write fail
0x06
Unable to read after write
0x08
Address overflow
0x09
Download Key fail
0x0D
Not authenticate
0x0E
Not a value block
0x0F
Invalid len of command format
0xF0
Checksum error
0xF1
Command code error

StrongLink SL025M
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4-4. Command List
4-4-1. Select Mifare card
0xBA
Len
0x01
Checksum
Response:
0xBD
Len
0x01
Status
UID
Type
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0xF0: Checksum error
UID: The uniquely serial number of Mifare card
Type: 0x01: Mifare 1k, 4 byte UID
0x02: Mifare 1k, 7 byte UID [1]
0x03: Mifare UltraLight or NATG203[2]
0x05: Mifare 4k, 7 byte UID
, 7 byte UID
0x04: Mifare 4k, 4 byte UID [1]
0x06: Mifare DesFire, 7 byte UID
0x0A: Other
4-4-2. Login to a sector
0xBA
Len
0x02
Sector
Type
Key
Checksum
Sector: Sector need to login, 0x00 – 0x27
Type: Key type (0xAA: authenticate with KeyA, 0xBB: authenticate with KeyB)
Key: Authenticate key, 6 bytes
Response:
0xBD
Len
0x02
Status
Checksum
Status: 0x02: Login succeed
0x01: No tag
0x03: Login fail
0x08: Address overflow
0xF0: Checksum error
4-4-3. Download Key into SL025
0xBA
Len
0x12
Sector
Type
Key
Checksum
Sector: 0x00 – 0x27
Type: Key type (0xAA: KeyA, 0xBB: KeyB)
Key: 6 bytes, stored into SL025
Response:
0xBD
Len
0x12
Status
Checksum
Status: 0x00: Operation succeed
0x08: Address overflow
0x09: Download fail
0xF0: Checksum error

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4-4-4. Login sector via stored key
0xBA
Len
0x13
Sector
Type
Checksum
Sector: Sector need to login, 0x00 – 0x27
Type: Key type (0xAA: KeyA, 0xBB: KeyB)
Response:
0xBD
Len
0x13
Status
Checksum
Status: 0x02: Login succeed
0x03: Login fail
0x08: Address overflow
0xF0: Checksum error
4-4-5. Read a data block
0xBA
Len
0x03
Block
Checksum
Block: The absolute address of block to be read, 1 byte
Response:
0xBD
Len
0x03
Status
Data
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0x04: Read fail
0x0D: Not authenticate
0xF0: Checksum error
Data: Block data returned if operation succeeds, 16 bytes.
4-4-6. Write a data block
0xBA
Len
0x04
Block
Data
Checksum
Block: The absolute address of block to be written, 1 byte.
Data: The data to write, 16 bytes.
Response:
0xBD
Len
0x04
Status
Data
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0x05: Write fail
0x06: Unable to read after write
0x0D: Not authenticate
0xF0: Checksum error
Data: Block data written if operation succeeds, 16 bytes.
4-4-7. Read a value block
0xBA
Len
0x05
Block
Checksum
Block: The absolute address of block to be read, 1 byte.
Response:
0xBD
Len
0x05
Status
Value
Checksum
Status: 0x00: Operation succeed

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0x01: No tag
0x04: Read fail
0x0D: Not authenticate
0x0E: Not a value block
0xF0: Checksum error
Value : Value returned if the operation succeeds, 4 bytes.
4-4-8. Initialize a value block
0xBA
Len
0x06
Block
Value
Checksum
Block: The absolute address of block to be initialized, 1 byte.
Value: The value to be written, 4 bytes.
Response:
0xBD
Len
0x06
Status
Value
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0x05: Write fail
0x06: Unable to read after write
0x0D: Not authenticate
0xF0: Checksum error
Value : Value written if the operation succeeds, 4 bytes.
4-4-9. Write master key (key A)
0xBA
Len
0x07
Sector
Key
Checksum
Sector: The sector number to be written, 0x00 – 0x27
Key: Authentication key, 6 bytes
Response:
0xBD
Len
0x07
Status
Key
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0x05: Write fail
0x08: Address overflow
0x0D: Not authenticate
0xF0: Checksum error
Key: Authentication key written if the operation succeeds, 6 bytes.
Attention: Be sure KeyB is readable, otherwise KeyB will be change to 000000000000
after this command.
4-4-10. Increment value
0xBA
Len
0x08
Block
Value
Checksum
Block: The absolute address of block to be increased, 1 byte.
Value: The value to be increased by, 4 bytes.
Response:
0xBD
Len
0x08
Status
Value
Checksum

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Status: 0x00: Operation succeed
0x01: No tag
0x05: Write fail
0x06: Unable to read after write
0x0D: Not authenticate
0x0E: Not a value block
0xF0: Checksum error
Value: The value after increment if the operation succeeds, 4 bytes
4-4-11. Decrement value
0xBA
Len
0x09
Block
Value
Checksum
Block: The absolute address of block to be decreased, 1 byte
Value: The value to be decreased by, 4 bytes
Response:
0xBD
Len
0x09
Status
Value
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0x05: Write fail
0x06: Unable to read after write
0x0D: Not authenticate
0x0E: Not a value block
0xF0: Checksum error
Value: The value after decrement if the operation succeeds, 4 bytes
4-4-12. Copy value
0xBA
Len
0x0A
Source
Destination
Checksum
Source: The source block copy from, 1 byte
Destination: The destination copy to, 1 byte
Attention: The source and destination must in the same sector
Response:
0xBD
Len
0x0A
Status
Value
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0x05: Write fail
0x06: Unable to read after write
0x0D: Not authenticate
0x0E: Not a value block (Source)
0xF0: Checksum error
Value: The value after copy if the operation succeeds, 4 bytes
4-4-13. Read a data page (UltraLight & NTAG203)
0xBA
Len
0x10
Page
Checksum
Page: The page number to be read, 0x00 – 0x0F

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Response:
0xBD
Len
0x10
Status
Data
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0x04: Read fail
0x08: Address overflow
0xF0: Checksum error
Data: Block data returned if operation succeeds, 4 bytes.
4-4-14. Write a data Page (UltraLight & NTAG203)
0xBA
Len
0x11
Page
Data
Checksum
Page: The page number to be written, 0x00 – 0x0F
Data: The data to write, 4 bytes.
Response:
0xBD
Len
0x11
Status
Data
Checksum
Status: 0x00: Operation succeed
0x01: No tag
0x05: Write fail
0x06: Unable to read after write
0x08: Address overflow
0xF0: Checksum error
Data: Page data written if operation succeeds, 4 bytes.
4-4-15. Manage Red Led
0xBA
Len
0x40
Code
Checksum
Code: 0 command red led turn off , other red led turn on, 1 byte
Return:
0xBD
Len
0x40
Status
Checksum
Status: 0x00: Operation succeed
0xF0: Checksum error
4-4-16. Get firmware version
0xBA
Len
0xF0
Checksum
Response: [3]
0xBD
Len
0xF0
Status
Data
Checksum
Status: 0x00: Operation success
0xF0: Checksum error
Data: firmware version.

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12
Remark
[1] In order to support 7 byte UID Mifare class, the firmware of SL025 has been
updated to Ver1.2 in Mar 2011.
And older firmware version (such as Ver1.0, 1.1) only supports 4 byte UID.
Please refer to NXP Customer Letter UID for detailed information of 4 byte & 7 byte
UID of Mifare products.
[2] To support NATG203, the firmware of SL025 has been updated to Ver1.6 in May
2012. The older firmware version only supports reading/writing data page address less
than 16.
[3] One sample of SL025 response
Preamble
Len
Command
Status
Data
(Firmware version)
Checksum
HEX
BD
0C
F0
00
53 4C 30 32 35 2D
312E 32
69
ASCII
“SL025-1.2”