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bdbf279d0f
set... but I'm not sure what to do about it. The big problem is that I have to be in user mode to service irqs, but I can't enable and disable F and I in usermode. All I can do is an swi and then have handler which lets me enable or disable them (like a mini-syscall).
23 lines
407 B
C
23 lines
407 B
C
#ifndef ISR_H
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#define ISR_H
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#include "embedded_types.h"
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#define INTBASE (0x80020000)
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#define INTENNUM_OFF (0x8)
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#define INTSRC_OFF (0x30)
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#define INTENNUM INTBASE + INTENNUM_OFF
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#define INTSRC INTBASE + INTSRC_OFF
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#define no_isrs() no_tmr_isr();
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#define enable_tmr_irq() *(volatile uint32_t *)(INTENNUM) = 5;
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#define no_tmr_isr() void tmr_isr(void) { return; }
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extern void tmr_isr(void);
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#endif
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