Added initial code for software and interrupt timers

interrupt-timer/interrupt_timer.cpp

@@ -0,0 +1,40 @@
+#include "interrupt_timer.h"
+
+volatile uint36 times[65536];
+uint16 count = 0;
+
+uint1 intrLast = 0;
+uint1 intr = 0;
+uint32 command = 0;
+
+
+void interrupt_timer(volatile uint32 *commandIn, volatile uint1 *intrIn, volatile uint36 *timeIn, uint32 *timeOutHigh, uint32 *timeOutLow, uint32 *countOut) {
+#pragma HLS INTERFACE s_axilite port=commandIn bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=timeOutHigh bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=timeOutLow bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=countOut bundle=BUS_A
+#pragma HLS INTERFACE ap_ctrl_none port=return
+
+	intr = *intrIn;
+	command = *commandIn;
+
+	if (command == 0 && intrLast == 0 && intr == 1) {
+		times[count] = *timeIn;
+		count++;
+	}
+	else if (command <= 65536) {
+		uint16 item = command - 1;
+		uint36 time = times[item];
+		*timeOutHigh = time >> 32;
+		*timeOutLow = time & 0xFFFFFFFF;
+	}
+	else if (command == 0xFFFFFFFF) {
+		count = 0;
+		for (uint17 i = 0; i < 65536; i++) {
+			times[i] = 0;
+		}
+	}
+
+	intrLast = intr;
+	*countOut = count;
+}

interrupt-timer/interrupt_timer.h

@@ -0,0 +1,17 @@
+#ifndef __INTERRUPT_TIMER_H_
+#define __INTERRUPT_TIMER_H_
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ap_int.h>
+
+typedef ap_uint<1> uint1;
+typedef ap_uint<16> uint16;
+typedef ap_uint<17> uint17;
+typedef ap_uint<32> uint32;
+typedef ap_uint<36> uint36;
+
+void interrupt_timer(volatile uint32 *commandIn, volatile uint1 *intrIn, volatile uint36 *timeIn, uint32 *timeOutHigh, uint32 *timeOutLow, uint32 *countOut);
+
+#endif

software-timer/profile_timer.cpp

@@ -0,0 +1,42 @@
+#include "profile_timer.h"
+
+typedef struct {
+	uint36 time;
+	uint32 tag;
+} timeStamp;
+
+volatile timeStamp times[65536];
+uint16 count = 0;
+
+
+void profile_timer(uint32 *commandIn, uint32 *tagIn, uint36 *timeIn, uint32 *tagOut, uint32 *timeOutHigh, uint32 *timeOutLow, uint32 *countOut) {
+#pragma HLS INTERFACE s_axilite port=commandIn bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=tagIn bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=tagOut bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=timeOutHigh bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=timeOutLow bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=countOut bundle=BUS_A
+#pragma HLS INTERFACE s_axilite port=return bundle=BUS_A
+
+	if (*commandIn == 0 && *tagIn != 0) {
+		times[count].time = *timeIn;
+		times[count].tag = *tagIn;
+		count++;
+	}
+	else if (*commandIn <= 65536) {
+		uint16 item = *commandIn - 1;
+		*tagOut = times[item].tag;
+		uint36 time = times[item].time;
+		*timeOutHigh = time >> 32;
+		*timeOutLow = time & 0xFFFFFFFF;
+	}
+	else if (*commandIn == 0xFFFFFFFF) {
+		count = 0;
+		for (uint17 i = 0; i < 65536; i++) {
+			times[i].time = 0;
+			times[i].tag = 0;
+		}
+	}
+
+	*countOut = count;
+}

software-timer/profile_timer.h

@@ -0,0 +1,17 @@
+#ifndef __PROFILE_TIMER_H_
+#define __PROFILE_TIMER_H_
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ap_int.h>
+
+typedef ap_uint<1> uint1;
+typedef ap_uint<16> uint16;
+typedef ap_uint<17> uint17;
+typedef ap_uint<32> uint32;
+typedef ap_uint<36> uint36;
+
+void profile_timer(uint32 *commandIn, uint32 *tagIn, uint36 *timeIn, uint32 *tagOut, uint32 *timeOutHigh, uint32 *timeOutLow, uint32 *countOut);
+
+#endif

software-timer/testbench.cpp

@@ -0,0 +1,45 @@
+#include "profile_timer.h"
+
+typedef struct {
+	unsigned int time;
+	unsigned int tag;
+} timeStamp;
+
+static timeStamp times[256];
+
+int main() {
+
+	uint32 commandIn = 0;
+	uint32 tagIn = 0;
+	uint32 timeIn = 0;
+	uint32 tagOut = 0;
+	uint32 timeOut = 0;
+
+	// Clear timer
+	commandIn = 0xFFFFFFFF;
+	profile_timer(&commandIn, &tagIn, &timeIn, &tagOut, &timeOut);
+
+	// Tag 0x001 at time 0x00000123 three times
+	timeIn = 0x00000123;
+	tagIn = 0x001;
+	commandIn = 0;
+	profile_timer(&commandIn, &tagIn, &timeIn, &tagOut, &timeOut);
+	profile_timer(&commandIn, &tagIn, &timeIn, &tagOut, &timeOut);
+	profile_timer(&commandIn, &tagIn, &timeIn, &tagOut, &timeOut);
+
+	for (int i = 0; i < 256; i++) {
+		commandIn = i + 1;
+		profile_timer(&commandIn, &tagIn, &timeIn, &tagOut, &timeOut);
+		times[i].time = timeOut;
+		times[i].tag = tagOut;
+	}
+
+	// Print out the times...
+	for (int i = 0; i < 256; i++) {
+		printf("%3d: 0x%03x = 0x%08x\n", i+1, times[i].tag, times[i].time);
+		// if (times[i].tag == 0 && times[i].time == 0)
+		// 	break;
+	}
+
+	return 0;
+}