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July 2015 Entries

x86 ISR for WCE8
In Windows CE all hardware interrupts are handled by 1 Interrupt Service Routine (ISR) at the lowest level. Its main purpose is to identify the Interrupt Request (IRQ) source and handle some low level hardware clearing and resetting of the Interrupt Controller such that new interrupts can be triggered. Once the IRQ is recognized by the ISR, it is handed over to an Interrupt Service Thread (IST). This has the advantage that the hardware IRQ priority can be overruled by the IST thread priority scheduling. ......

Posted On Monday, July 13, 2015 10:23 PM | Comments (1) | Filed Under [ Windows CE Windows Embedded Compact USB UHCI EHCI APIC ACPI Interrupt IRQ PIC Intel ]

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