Справочник Пользователя для IBM ECS-320A

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ERIAL 

I

NTERFACE 

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EVELOPERS 

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UIDE

 
 

Command Code: Enumeration for CMD_WRITE_VID_ENC_REG 

Argument Size: size of 2 * UWord16 

Argument: 1

P

st

P

 UWord16 – offset, 2

P

nd

P

 UWord16 – data.  The offset term is relative to the video encoder 

mode 0 register.  In other words if a value of 0 is supplied as the offset then data will be written to the 
mode 0 register. 

Note: This command is intended for development purposes and should not be used for normal 
operation. 

Description:  Perform test specified by argument in command packet.  

Command Code: Enumeration for CMD_PERFORM_TEST 

Argument Size: UWord16 

Argument: Index from enumeration below. 

enum 
{ 
 

TEST_REGISTERS = 0, 

 TEST_OPERATIONAL, 
 TEST_MEMORY, 
 

 
TEST_UNDEFINED 

}; 
 

Note: After issuing a test command it is necessary to delay for several seconds until the camera has 
completed testing.  Then the results can be obtained by reading the global configuration structure 
member ‘CAMERA_ERRORS’ (see 

X

Appendix A

X

). 

Description:  Command to perform a refresh of the symbology overlay.  

Command Code: Enumeration for CMD_OVERLAY_REFRESH 

Argument Size: 0 

Argument: Null 

Note: Erases contents of overlay memory and sets flag so that all objects are repainted. 

Description:  Command to (un)freeze display imagery.  

Command Code: Enumeration for CMD_FREEZE_IMAGE 

Argument Size: UWord16 

Argument: 0 – normal imagery, 1 – freeze image 

Note: none. 

Description:  Command to initiate a defective pixel detection routine.  

Command Code: Enumeration for CMD_DETECT_BAD_PIXELS 

Argument Size: 0 

Argument: Null 

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