RUBY-D812-Q470E
Copyright © Portwell 2021 RUBY-D812-Q470E User's Guide
29
5
Signal Descriptions
5.1
Watch Dog Signal
WDT setting
SIO_INDEX_PORT is 0x2E
SIO_DATA_PORT is 0x2F
1. Set WDT Time Unit
Outportb(SIO_INDEX_PORT, 0x87); // Unlock SIO
Outportb(SIO_INDEX_PORT, 0x87); // Unlock SIO
Outportb(SIO_INDEX_PORT, 0x07);
Outportb(SIO_DATA_PORT, 0x08);
Outportb(SIO_INDEX_PORT, 0xF0); //select WDT setting
val = Inportb(SIO_DATA_PORT) // Read current WDT setting
val = val | 0x08; // minute mode, val = val & 0xF7 if second mode
Outportb(SIO_INDEX_PORT, 0xF0); //select WDT setting
Содержание RUBY-D812-Q470E
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