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labW5barnestr/Src/memory.c

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+/**
+ * @file memory.c
+ * @author Trevor Barnes
+ * @brief 
+ * @version 0.1
+ * @date 2022-01-19
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+#include "memory.h"
+
+#define F_CPU 16000000UL
+
+void initMemConsole() {
+    init_usart2(57600, F_CPU);
+    printf("Memory Console Initialized! Type 'help' for info.\n\r");
+}
+
+void readMem(uint32_t addr) {
+	// Assign and casts a new int pointer the value of addr
+	uint32_t * memPtr = (uint32_t *)addr;
+	// Formatted print with both hex and decimal values
+	printf("Memory Value at %#08x\n\r"
+		   "Hex: %#08x\n\r"
+		   "Decimal: %d\n\r", addr, *memPtr, *memPtr);
+	return;
+}
+
+void writeMem(uint32_t addr, uint32_t data) {
+	// Assign and casts a new int pointer the value of addr
+	uint32_t * memPtr = (uint32_t *)addr;
+	// Write data
+	*memPtr = data;
+	// Confirmation printout showing the new value and address
+	printf("Value written at  %#08x: %u \n\r", addr, data);
+	return;
+}
+
+
+void dumpMem(uint32_t addr, int length) {
+	// Set length to default value if length is negative
+	// (No limit or protection for large, overflow values yet)
+	if(length <= 0) {
+		length = 16;
+		printf("Length set to default! (16)\n\r");
+	}
+	// Assign and casts a new int pointer the value of addr
+	uint8_t * memPtr = (uint8_t *)addr;
+	// Loop that executes each read and print operation
+	for(int i=0 ; i < length ; i++) {
+		// Print newline and memory location every 16 bytes
+		if((i % 16) == 0) {
+			printf("\n\r%p:", memPtr);
+		}
+		// Print each byte
+		printf(" %02X", *memPtr);
+		// Iterate pointer to next byte
+		memPtr++;
+		}
+	printf("\n\r");
+	return;
+}