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Java Terminals Hardware Interface Description
8.3 Configuration via ASC0 Interface
69
EHSxT_BGS5T_HID_v02 2014-05-23
Confidential / Preliminary
Page 59 of 70
8.3.1.4 UART Reset
This command configures a module reset, if no UART activity from the module was observed
for the specified amount of time - RST_UART. The module has to be active on the RXD0 signal
within the specified time period; otherwise the watchdog will reset the module.
Changing this configuration disables the watchdog. The feature becomes active, if the watch-
dog is enabled again, and after the MIN_START_TIME has passed.
For normal operation, this value should be set to a value greater than 10 minutes (
600000).
8.3.1.5 GPIO Reset
This command configures a module reset, if no activity from the module was observed on the
internal signal WD_RETRIG for the specified amount of time. The module has to be active on
the WD_RETRIG signal by toggling the GPIO22 module output within the specified time period.
Otherwise the watchdog will reset the module. If enabled, each GPIO22 toggling resets the tim-
er to its configured value.
Changing this configuration disables the watchdog. The feature becomes active, if the watch-
dog is enabled again, and after the MIN_START_TIME has passed.
For normal operation, this value should be set to a value greater than 10 minutes (
600000).
Command RST_UART
Parameter <timeout>
Type Milliseconds
Range 0 .. 2
32
-1
Default 0: Feature is disabled
Non-volatile Yes
Example WD=RST_UART,600000,6 // Resets the module if there was no activity on the
RXD0 line for 10 minutes
Command RST_GPIO
Parameter <timeout>
Type Milliseconds
Range 0 .. 2
32
-1
Default 0: Feature is disabled
Non-volatile Yes
Example WD=RST_UART,600000,6 // Resets the module if there was no activity on the
internal WD_RETRIG line for 10 minutes
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