Chapter 12. Diagnostics
GFK-2224Q January 2017 211
On the RX7i interfaces, the Ethernet LEDs are labeled EOK, LAN, and STAT.
On the RX3i rack-based Ethernet interfaces, the Ethernet LEDs are labeled ETHERNET OK, LAN OK, and LOG
EMPTY, respectively.
12.4 EOK LED Blink Codes for Hardware Failures (Rack-based and
RX7i Embedded Interfaces)
The EOK LED indicates whether the module is able to perform normal operation. This LED is on for normal
operation and flashing for all other operations. If a hardware or unrecoverable runtime failure occurs, the EOK
LED blinks a two-digit error code. The EOK LED first blinks to indicate the most significant error digit, then after
a brief pause blinks again to indicate the least significant error digit. After a long pause the error code display
repeats
Blink
Code
Description Blink Code Description
0x12 Undefined or Unexpected Interrupt. 0x42 Firmware Loader error
0x13 Timer failure during power up diagnostics. 0x51 Unexpected watchdog timer exception
0x14 DMA failure during power up diagnostics. 0x52 Unexpected debug exception
0x21 RAM failure during power up diagnostics. 0x61 Boot: Critical interrupt exception
0x22 Stack error during power up diagnostics. 0x62 Boot: Machine check exception
0x23
Shared Memory Interface error during
power up diagnostics.
0x63 Boot: Data store exception
0x24
Firmware CRC (cyclic redundancy check)
error during power up or Factory Test
22
0x64 Boot: Instruction store exception
0x25 Run time exception 0x65 Boot: External interrupt exception
0x26
No mail communication available during
software load
0x66 Boot: Alignment exception
0x27 Serial EEPROM access exception 0x67 Boot: Program exception
0x28 Serial EEPROM reset exception 0x68 Boot: System call exception
0x31 Machine check exception 0x69 Boot: PIT interrupt exception
0x32 Data store exception. 0x71 Boot: FIT interrupt exception
0x33 Instruction store exception 0x72 Boot: WDT interrupt exception
0x34 Alignment exception 0x73 Boot: Data cache TLB miss exception
0x35 Program exception 0x74
Boot: Instruction cache TLB miss
exception
0x36 System call exception 0x75 Boot: Debug exception
0x37 Unexpected IRQ exception 0x76 Boot: Flash memory CRC error
0x38 Data cache TLB miss exception 0x77 Boot: Unexpected ACFAIL interrupt
22
CRC error or software error during normal operation causes Ethernet restart