B&B Electronics Parallel Printer Card PIOC Bedienungsanleitung PDF herunterladen (Seite 50)

GHI Electronics,LLC USBwiz User Manual

USBwiz Command Set

Data to device

!00<CR>

Example SW<SP>0>3<CR>

!00<CR>

AT<CR>

!00<CR>

Write 3 bytes to serial device on port 0

Send AT followed by carriage return (0x0D)

EV - Enable Events

USBwiz can detect SD card and USB devices insert and removal. All events are

returned with % symbol proceeding the event number. Appendix lists all events.

Format EV<SP>v<CR>

!00<CR>

v Events to enable:

0 Disable events

1 Enable SD card events

2 Enable USB device events

3 Enable USB and SD events

Example EV<SP>3<CR>

!00<CR>

%02<CR>

Enable all events

SD card was removed

SK - Store Key

Storing a manufacturer key on USBwiz, to validate originality:

1. User will send a secret key to USBwiz through this command.

2. The secret key is saved permanently in USBwiz and it can't be read, verified or

deleted after it is been saved.

3. The manufacture will place the correct firmware on USBwiz and the "Secret key"

before it ships to the customer.

4. The key is 16 bytes and stored as in "SK

00112233445566778899AABBCCDDEEFFCS"

SK is Store Key command and then it is followed by 16 bytes (every byte is 2

ASCII Hexadecimal Characters) and then it ends with the checksum which is the

sum of all bytes.

5. If the checksum is valid and no key existed before then USBwiz will save it.

This key can only be erased after uploading USBwiz firmware.

Format SK<SP>16Bytes + CS<CR>

!00<CR>

16Bytes key to be stored.

CS Check Sum of the bytes: This is just

the bytes added together.

Example SK<SP>010203040506070

8090A0B0C0D0E0F1088<

CR>

!00<CR>

0102030405060708090A0B0C0D0E0F

10 16Bytes

88 The Check Sum

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