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