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SERIAL INTERFACE DEVELOPERS GUIDE
It is also recommended that the host check regularly (including the boot sequence) for the
UNCONFIGURED_CONTROLLER and the FAULT_DETECTED codes.
The FAULT_DETECTED code is set by the embedded application when a built-in test fails or when a
mismatch between the configured hardware and detected hardware occurs. The embedded software
will jump to an idle loop to give the host a chance to read error data (see paragraph
X6.6X) and then set
the continue flag (structure member ‘continueFlag’, paragraph
X6.2.3X). This idle routine has a timeout
and will automatically return after time expires.
The UNCONFIGURED_CONTROLLER code is set by the embedded application when it detects
erased product ID’s, missing Xilinx FPGA configuration files, or an error programming the FPGA
occurs. The embedded software will jump to an idle loop to give the host an opportunity to configure
the controller (load product ID’s, upload a Xilinx FPGA configuration file). This routine can not be
exited, a power on/reset is required to return to normal operation.
6.6 Error Code Detection (CAMERA_ERRORS)
During the boot process several checks are made of the hardware. If a fault is detected then an error
code is set along with any additional error data using the CAMERA_ERRORS data structure (see
paragraph
X6.2.5X). Once the error data has been logged the code jumps to an idle state routine.
Inside this routine the global configuration member progress code (paragraph
X6.2.5X) is set to
FAULT_DETECTED and a timer is started.
While in this idle state the host has the opportunity to determine that a fault has occurred, read the
error information and then set the continue flag (see paragraph
X6.2.3X). If the host does not
acknowledge the error and the timer expires the code will continue operation. It should be noted that it
may take a significantly longer time to boot if errors are present and the host does not acknowledge
them appropriately.
The following is a list of possible error codes.
/* Camera Error Codes */
#define ERR_NONE 0x0000
#define ERR_PC_MSTR 0x8001
#define ERR_FPGA_LOAD 0x8002
#define ERR_FPGA_TEST 0x8003
#define ERR_MEM_TEST 0x8004
#define ERR_VID_ENCODER 0x8005
#define ERR_FORCE_ZERO 0x8006
#define ERR_FORCE_ONE 0x8007
#define ERR_FORCE_COUNT 0x8008
#define ERR_HISTO_GRAB 0x8009
#define ERR_GAIN_OFFSET 0x800A
#define ERR_FORCE_COUNT_COADD 0x800B
#define ERR_CONFIG_MISMATCH 0x800C
#define ERR_NUC_FLASH_PARAM 0x800D
#define ERR_TEST_SKIPPED 0x8FFF
6.6.1 Configuration ID Error
This check is of the configuration ID’s stored in flash versus the ID’s read back via the ADC.
Data from CameraConfig.camErrors:
ErrorCode: ERR_CONFIG_MISMATCH define.
ErrorSubCode: a more specific description of the error from the following enumeration.
/* Cfg Board ID Error SubCodes (#define ERR_CONFIG_MISMATCH 0x800C) */
enum
{
ERR_LENS_MISMATCH = 1,
ERR_FPA_SPRT_BD_MISMATCH,
ERR_FPA_MISMATCH,
ERR_CAM_CTRL_BD_MISMATCH,
31