2 set/clear initial timeout of watchdog-timer, 3 clear exception code – ADLINK CoreExpress-ECO2 User Manual
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4.2 Set/Clear initial timeout of Watchdog-timer
This command sets the Timeout value of the Watchdog-timer which is loaded at power-up. This
initial timeout value is given in seconds and has a 16-bit (two byte wide) size. It can be set from 25
to 65535 seconds. 0 disables the loading of an initial timeout to the Watchdog.
START SMC_addr ACK command ACK length ACK MSB_byte ACK LSB_byte ACK STOP
Table 4.2.1 SMC receiver format of the Watchdog-timer Command Code
ITEM
DESCRIPTION
START
SM-bus start condition
SMC_addr
0x50 (8-bit)
ACK
SM-bus acknowledge condition generated by receiver
command
0x22 = “Set/Clear initial Watchdog-timeout” Command code
length
0x02 = 2 Bytes data length
MSB_byte
High-byte of Timeout-value in seconds
LSB_byte
Low-byte of Timeout-value in seconds
STOP
SM-bus stop condition
Table 4.2.2 Explanation of Table 4.2.1
4.3 Clear Exception Code
This command clears the Flash stored Exception Code. Please look at the board technical manual
chapter “LEMT functions” for details.
START SMC_addr ACK command ACK STOP
Table 4.3.1 SMC receiver format of the Clear Exception Code Command Code
ITEM
DESCRIPTION
START
SM-bus start condition
SMC_addr
0x50 (8-bit)
ACK
SM-bus acknowledge condition generated by receiver
command
0x2E = “Clear Exception Code” Command code
STOP
SM-bus stop condition