Simulation for Arduino eeprom programmer without connecting the EEPROM itself

microcode-eeprom-with-flags/microcode-eeprom-with-flags.ino → INO/PRINT micro-code with address.ino

@@ -1,14 +1,5 @@
-/**
- * This sketch programs the microcode EEPROMs for the 8-bit breadboard computer
- * It includes support for a flags register with carry and zero flags
- * See this video for more: https://youtu.be/Zg1NdPKoosU
- */
-#define SHIFT_DATA 2
-#define SHIFT_CLK 3
-#define SHIFT_LATCH 4
 #define EEPROM_D0 5
 #define EEPROM_D7 12
-#define WRITE_EN 13
 
 #define HLT 0b1000000000000000  // Halt clock
 #define MI  0b0100000000000000  // Memory address register in
@@ -62,103 +53,71 @@ void initUCode() {
 
   // ZF = 0, CF = 1
   memcpy(ucode[FLAGS_Z0C1], UCODE_TEMPLATE, sizeof(UCODE_TEMPLATE));
-  ucode[FLAGS_Z0C1][JC][2] = IO|J;
+  ucode[FLAGS_Z0C1][JC][2] = IO | J;
 
   // ZF = 1, CF = 0
   memcpy(ucode[FLAGS_Z1C0], UCODE_TEMPLATE, sizeof(UCODE_TEMPLATE));
-  ucode[FLAGS_Z1C0][JZ][2] = IO|J;
+  ucode[FLAGS_Z1C0][JZ][2] = IO | J;
 
   // ZF = 1, CF = 1
   memcpy(ucode[FLAGS_Z1C1], UCODE_TEMPLATE, sizeof(UCODE_TEMPLATE));
-  ucode[FLAGS_Z1C1][JC][2] = IO|J;
-  ucode[FLAGS_Z1C1][JZ][2] = IO|J;
+  ucode[FLAGS_Z1C1][JC][2] = IO | J;
+  ucode[FLAGS_Z1C1][JZ][2] = IO | J;
 }
 
-/*
- * Output the address bits and outputEnable signal using shift registers.
- */
-void setAddress(int address, bool outputEnable) {
-  shiftOut(SHIFT_DATA, SHIFT_CLK, MSBFIRST, (address >> 8) | (outputEnable ? 0x00 : 0x80));
-  shiftOut(SHIFT_DATA, SHIFT_CLK, MSBFIRST, address);
-
-  digitalWrite(SHIFT_LATCH, LOW);
-  digitalWrite(SHIFT_LATCH, HIGH);
-  digitalWrite(SHIFT_LATCH, LOW);
-}
-
-
-/*
- * Read a byte from the EEPROM at the specified address.
- */
-byte readEEPROM(int address) {
-  for (int pin = EEPROM_D0; pin <= EEPROM_D7; pin += 1) {
-    pinMode(pin, INPUT);
-  }
-  setAddress(address, /*outputEnable*/ true);
-
-  byte data = 0;
-  for (int pin = EEPROM_D7; pin >= EEPROM_D0; pin -= 1) {
-    data = (data << 1) + digitalRead(pin);
-  }
-  return data;
-}
-
-
-/*
- * Write a byte to the EEPROM at the specified address.
- */
+char bufd[2];
+char bufa[8];
+int line_count = 0;
+int oneTime = -1;
+int addr = 0;
 void writeEEPROM(int address, byte data) {
-  setAddress(address, /*outputEnable*/ false);
   for (int pin = EEPROM_D0; pin <= EEPROM_D7; pin += 1) {
-    pinMode(pin, OUTPUT);
-  }
-
-  for (int pin = EEPROM_D0; pin <= EEPROM_D7; pin += 1) {
-    digitalWrite(pin, data & 1);
+    if (oneTime == -1) {
+      sprintf(bufd, "%02x ", data);
+      Serial.print(bufd);
+    }
+    oneTime++;
     data = data >> 1;
   }
-  digitalWrite(WRITE_EN, LOW);
-  delayMicroseconds(1);
-  digitalWrite(WRITE_EN, HIGH);
-  delay(10);
+  oneTime = -1;
+
+  line_count++;
+  if (line_count % 8 == 0)
+    Serial.print("  ");
+  if (line_count % 16 == 0) {
+    Serial.println("");
+    addr = addr + 16;
+    //    Serial.print(addr,HEX);
+    //    Serial.print(":  ");
+    sprintf(bufa, "%03x: ", addr);
+    Serial.print(bufa);
+  }
 }
 
+void setup() {
+  initUCode();
+  Serial.begin(9600);
 
-/*
- * Read the contents of the EEPROM and print them to the serial monitor.
- */
-void printContents(int start, int length) {
-  for (int base = start; base < length; base += 16) {
-    byte data[16];
-    for (int offset = 0; offset <= 15; offset += 1) {
-      data[offset] = readEEPROM(base + offset);
-    }
+  Serial.print("Programming EEPROM");
 
-    char buf[80];
-    sprintf(buf, "%03x:  %02x %02x %02x %02x %02x %02x %02x %02x   %02x %02x %02x %02x %02x %02x %02x %02x",
-            base, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7],
-            data[8], data[9], data[10], data[11], data[12], data[13], data[14], data[15]);
+  for (int address = 0; address < 1024; address += 1) {
+    delayMicroseconds(1);
+    delay(10);
 
-    Serial.println(buf);
+    if (address % 64 == 0) {
+      Serial.print(".");
+    }
   }
-}
-
 
-void setup() {
-  // put your setup code here, to run once:
-  initUCode();
+  Serial.println(" done");
 
-  pinMode(SHIFT_DATA, OUTPUT);
-  pinMode(SHIFT_CLK, OUTPUT);
-  pinMode(SHIFT_LATCH, OUTPUT);
-  digitalWrite(WRITE_EN, HIGH);
-  pinMode(WRITE_EN, OUTPUT);
-  Serial.begin(57600);
+  Serial.println("Reading EEPROM");
 
-  // Program data bytes
-  Serial.print("Programming EEPROM");
+  int zero = 0;
+  char buff[3];
+  sprintf(buff, "000: ", zero);
+  Serial.print(buff);
 
-  // Program the 8 high-order bits of microcode into the first 128 bytes of EEPROM
   for (int address = 0; address < 1024; address += 1) {
     int flags       = (address & 0b1100000000) >> 8;
     int byte_sel    = (address & 0b0010000000) >> 7;
@@ -170,23 +129,10 @@ void setup() {
     } else {
       writeEEPROM(address, ucode[flags][instruction][step] >> 8);
     }
-
-    if (address % 64 == 0) {
-      Serial.print(".");
-    }
   }
-
-  Serial.println(" done");
-
-
-  // Read and print out the contents of the EERPROM
-  Serial.println("Reading EEPROM");
-  printContents(0, 1024);
 }
 
 
 void loop() {
-  // put your main code here, to run repeatedly:
 
 }
-

INO/PRINT micro-code with address.pdsprj.IDEAPAD.Subhankar.workspace

@@ -0,0 +1,151 @@
+<?xml version='1.0' encoding='UTF-8' standalone='yes'?>
+<WORKSPACE>
+ <FRAME activewindow="1">
+  <PLACEMENT>2c0000000200000003000000ffffffffffffffffffffffffffffffff6900000000000000540300007c020000</PLACEMENT>
+  <WINDOW type="default" module="ISIS"/>
+  <WINDOW type="default" module="VSMSTUDIO">
+   <FILE ACTIVE="TRUE" NAME="ATmega328P/main.ino"/>
+   <STATE NAME="EDIT" VALUE="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"/>
+   <STATE NAME="DEBUG" VALUE="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"/>
+   <PROJECT ACTIVE="TRUE" NAME="ATmega328P" CONFIGURATION="Debug">
+    <PROGRAMMER NAME="AVRDUDE" INTERFACE="Arduino (ATmega328)">
+     <PROPERTY NAME="PORT" VALUE=""/>
+     <PROPERTY NAME="PORTCLOCK" VALUE="115200"/>
+     <PROPERTY NAME="UPLOADER" VALUE="ArduinoUnoR3.hex"/>
+    </PROGRAMMER>
+   </PROJECT>
+  </WINDOW>
+ </FRAME>
+ <MODULE name="VSMDEBUG">
+  <PWI>
+   <POPUP w="400" x="5" flags="00000002" y="106" h="100" pid="0" iid="-1">
+    <PROPERTIES>
+     <ITEM name="Message Column Width">279</ITEM>
+     <ITEM name="ShowGrid">No</ITEM>
+     <ITEM name="Source Column Width">100</ITEM>
+     <ITEM name="Version">100</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="350" x="5" flags="00000032" y="106" h="100" pid="1" iid="-1">
+    <PROPERTIES>
+     <ITEM name="Address Column Width">87</ITEM>
+     <ITEM name="AutoResize">No</ITEM>
+     <ITEM name="Gridlines">Yes</ITEM>
+     <ITEM name="Name Column Width">87</ITEM>
+     <ITEM name="ShowAddresses">Yes</ITEM>
+     <ITEM name="ShowPreviousValues">No</ITEM>
+     <ITEM name="ShowTypes">No</ITEM>
+     <ITEM name="ShowWatchPoint">Yes</ITEM>
+     <ITEM name="TriggerMode">0</ITEM>
+     <ITEM name="Value Column Width">87</ITEM>
+     <ITEM name="Version">100</ITEM>
+     <ITEM name="Watch Expression Column Width">87</ITEM>
+     <ITEM name="nItems">0</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="695" x="78" flags="00000001" y="169" h="453" pid="0" iid="8">
+    <PROPERTIES/>
+   </POPUP>
+   <POPUP w="78" x="1837" flags="00000013" y="128" h="924" pid="4097" iid="4097">
+    <PROPERTIES/>
+   </POPUP>
+   <POPUP w="611" x="983" flags="00008023" y="117" h="904" pid="0" iid="10">
+    <PROPERTIES>
+     <ITEM name="AutoEcho">0</ITEM>
+     <ITEM name="HexMode">0</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="98" x="5" flags="00000008" y="106" h="28" pid="3" iid="1">
+    <PROPERTIES/>
+   </POPUP>
+   <POPUP w="1" x="5" flags="0000000a" y="106" h="1" pid="10" iid="1">
+    <PROPERTIES>
+     <ITEM name="DataType">2</ITEM>
+     <ITEM name="DispChars">Yes</ITEM>
+     <ITEM name="DispFormat">2</ITEM>
+     <ITEM name="ShowChanges">Yes</ITEM>
+     <ITEM name="ShowToolTips">Yes</ITEM>
+     <ITEM name="TopLineAddress">00000000</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="1" x="5" flags="0000000a" y="106" h="2" pid="6" iid="1">
+    <PROPERTIES>
+     <ITEM name="DataType">2</ITEM>
+     <ITEM name="DispChars">Yes</ITEM>
+     <ITEM name="DispFormat">2</ITEM>
+     <ITEM name="ShowChanges">Yes</ITEM>
+     <ITEM name="ShowToolTips">Yes</ITEM>
+     <ITEM name="TopLineAddress">00000000</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="1" x="5" flags="0000000a" y="106" h="2" pid="7" iid="1">
+    <PROPERTIES>
+     <ITEM name="DataType">2</ITEM>
+     <ITEM name="DispChars">Yes</ITEM>
+     <ITEM name="DispFormat">2</ITEM>
+     <ITEM name="ShowChanges">Yes</ITEM>
+     <ITEM name="ShowToolTips">Yes</ITEM>
+     <ITEM name="TopLineAddress">00000000</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="16" x="218" flags="00000000" y="309" h="32" pid="14" iid="1">
+    <PROPERTIES>
+     <ITEM name="DataType">2</ITEM>
+     <ITEM name="DispChars">Yes</ITEM>
+     <ITEM name="DispFormat">2</ITEM>
+     <ITEM name="ShowChanges">Yes</ITEM>
+     <ITEM name="ShowToolTips">Yes</ITEM>
+     <ITEM name="TopLineAddress">00000000</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="1" x="5" flags="0000000a" y="106" h="2" pid="4" iid="1">
+    <PROPERTIES>
+     <ITEM name="DataType">2</ITEM>
+     <ITEM name="DispChars">Yes</ITEM>
+     <ITEM name="DispFormat">2</ITEM>
+     <ITEM name="ShowChanges">Yes</ITEM>
+     <ITEM name="ShowToolTips">Yes</ITEM>
+     <ITEM name="TopLineAddress">00000100</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="1" x="5" flags="0000000a" y="106" h="1" pid="13" iid="1">
+    <PROPERTIES>
+     <ITEM name="DataType">2</ITEM>
+     <ITEM name="DispChars">Yes</ITEM>
+     <ITEM name="DispFormat">2</ITEM>
+     <ITEM name="ShowChanges">Yes</ITEM>
+     <ITEM name="ShowToolTips">Yes</ITEM>
+     <ITEM name="TopLineAddress">00000020</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="1822" x="6" flags="0000002b" y="127" h="773" pid="1" iid="1">
+    <PROPERTIES>
+     <ITEM name="CaseSensitive">No</ITEM>
+     <ITEM name="DISPADDRS">Yes</ITEM>
+     <ITEM name="DISPLNUMS">No</ITEM>
+     <ITEM name="DISPOPCODES">No</ITEM>
+     <ITEM name="FIXUPBPTS">Yes</ITEM>
+     <ITEM name="WordsOnly">No</ITEM>
+     <ITEM name="nBreakpoints">0</ITEM>
+    </PROPERTIES>
+   </POPUP>
+   <POPUP w="1826" x="5" flags="0000000b" y="931" h="121" pid="2" iid="1">
+    <PROPERTIES>
+     <ITEM name="Address Column Width">608</ITEM>
+     <ITEM name="AutoResize">No</ITEM>
+     <ITEM name="Gridlines">Yes</ITEM>
+     <ITEM name="Name Column Width">608</ITEM>
+     <ITEM name="ShowAddresses">Yes</ITEM>
+     <ITEM name="ShowGlobals">Yes</ITEM>
+     <ITEM name="ShowPreviousValues">No</ITEM>
+     <ITEM name="ShowTypes">No</ITEM>
+     <ITEM name="ShowWatchPoint">No</ITEM>
+     <ITEM name="TriggerMode">0</ITEM>
+     <ITEM name="Value Column Width">608</ITEM>
+     <ITEM name="Version">100</ITEM>
+     <ITEM name="nItems">0</ITEM>
+    </PROPERTIES>
+   </POPUP>
+  </PWI>
+ </MODULE>
+</WORKSPACE>