73 lines
1.2 KiB
C++
73 lines
1.2 KiB
C++
/*
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* Subject: Interrupt Controller (IRQ), irq@MuraxSoc (RV32I)
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* Lang: Asm, C, C++ (Father of all programming languages)
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* OS: Bare Metal @verilated MuraxSoc
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* Tested: gdb@jtag
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* Authored: mpabi@2024/PI
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*/
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#include <stdint.h>
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#include "murax.h"
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void print(const char*str){
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while(*str){
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// uart_write(UART,*str);
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str++;
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}
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}
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void println(const char*str){
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print(str);
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// uart_write(UART,'\n');
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}
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volatile int mati = 0;
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// Modern C++ aproach
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// ---
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class TimeR {
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public:
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static inline uint32_t readValue() {
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return ptr->VALUE;
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}
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private:
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static const Timer_Reg* ptr ;
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};
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const Timer_Reg* TimeR::ptr = reinterpret_cast<const Timer_Reg*>(0xF0020040);
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// ---
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int main() {
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// println("hello world arty a7 v1");
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interruptCtrl_init(TIMER_INTERRUPT);
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prescaler_init(TIMER_PRESCALER);
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timer_init(TIMER_A);
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TIMER_PRESCALER->LIMIT = 0x10;
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TIMER_A->LIMIT = 0x10000-1;
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TIMER_A->CLEARS_TICKS = 0x10002;
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TIMER_INTERRUPT->PENDINGS = 0xF;
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TIMER_INTERRUPT->MASKS = 0x1;
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while(1){
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++mati;
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}
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}
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extern "C" void irqCallback(){
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static volatile int count = 0;
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++count;
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TIMER_INTERRUPT->PENDINGS = 1;
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}
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