EX II 3000SP Controller Communications

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To terminate Format Raw, issue a Reset command. The controller may return several bytes of data between the time you issue a Reset command and when the controller receives it. You can either scan the data stream for the Reset acknowledgment, or you can ignore the response to the first Reset command and then issue a second Reset after approximately 10 seconds has passed.

Use the Format Raw command for diagnostics. Use Format Tablet for standard touch screen operation.

Response: <SOH>0<CR> Positive response

After the controller is in Format Raw mode, the controller returns a response in the following format:

<41-byte-packet><41-byte-packet>...<41-byte-packet>...

Table 6 General Packet Formats
ByteBits 0 – 7

1

b0

– b6: Reserved

 

b7:

Synchronization bit (Always 1)

2-6

I component of upper left (UL) corner

7-11

Q component of upper left (UL) corner

12-16

I component of upper right (UR) corner

17-21

Q component of upper right (UR) corner

22-26

I component of lower left (LL) corner

27-31

Q component of lower left (LL) corner

32-36

I component of lower right (LR) corner

37-41

Q component of lower right (LR) corner

Table 7 I/Q Corner Components

 

 

Byte

Bits 0 – 7

N

b0

– b6: bits 0-6 of respective I/Q corner data

 

b7:

Always 0

N+1

b0

– b6: bits 7-13 of respective I/Q corner data

 

b7:

Always 0

N+2

b0

– b6: bits 14-20 of respective I/Q corner data

 

b7:

Always 0

N+3

b0

– b6: bits 21-27 of respective I/Q corner data

 

b7:

Always 0

N+4

b0

– b3: bits 28-31 of respective I/Q corner data

 

b4

– b7: Always 0

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