4 dtt, 16 spi – Artesyn COMX-P40x0 ENP2 Installation and Use (January 2015) User Manual
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COMX-P40x0 ENP2 Installation and Use (6806800R95C)
115
U-Boot provides "wdt" commands to operate on the WDT features.
The following are usage examples of "wdt" for the COMX-P40x0 ENP2 module.
wdt status
WDT: disabled.
wdt enable 5
WDT: enabled with timeout 5 seconds.
wdt reset
System reset.
7.15.4 DTT
An I2C thermal sensor ADT7411 (U36) is installed and is located on I2C<1>. The ADT7411 is
used to monitor the CPU temperature. Boot up message in the U-Boot will read as "DTT:
ADT7411@4C".
U-Boot provides "dtt" to display the CPU temperature. Here is an example of dtt usage:
dtt
DTT1: CPU Temperature: 48 C
7.16 SPI
The COMX-P40x0 ENP2 module provides a SPI bus from the P40x0 CPU with four chip-select
signals. All SPI bus signals are routed to COM Express connectors.
For more information on the distribution of the SPI bus, see
.
wdt reset
-
Resets WDT
wdt status
-
Checks the current status of WDT
wdt disable
-
Disables WDT
wdt enable <timeout#>
-
Enables WDT with timeout <timeout#> seconds.
<timeout#> range [1...124]