#define WE 52
#define OE 51
#define CE 53
#define NUM_ADDR 3
int DP[8] = {22, 23, 24, 25, 26, 27, 28, 29};
int AP[] = {37, 36, 35};
byte data[] = {0xB080400, 0x1C16140F, 0x2A28231E, 2F32373A0x3A37322F, 0x4B46433F, 0x5B57534E, 5F63676B0x6B67635F, 0x7B77736F, 0x8B86837E, 0x9A97938E, 0xABA7A29F, 0xBBB6B3AE, 0xCBC6C3BE, 0xDAD7D3CE, 0xEAE7E2DF, 0xFAF7F2EF}; /// Sinus Lookup-Table
//------------------------ Init ----------------------------
void setupDataBus(int mode) {
for (int i = 0; i < 8; i++) {
pinMode(DP[i], mode);
}
}
void setupControlPins(int mode) {
pinMode(WE, mode);
pinMode(OE, mode);
pinMode(CE, mode);
}
void setupAddressBus(int mode) {
for (int i = 0; i < NUM_ADDR; i++) {
pinMode(AP[i], mode);
}
}
//------------------------ Write Byte ----------------------
void writeByte(int address, byte data) {
setupDataBus(OUTPUT);
setupAddressBus(OUTPUT);
setupControlPins(OUTPUT);
Serial.print("Write Byte: ");
for (int b = 0; b < 7; b++) {
digitalWrite(AP[b], bitRead(address, b));
}
Serial.print(address, HEX);
Serial.print(", ");
Serial.print(data, HEX);
Serial.println();
delay(1);
// Enable write
digitalWrite(OE, HIGH);
delay(1);
digitalWrite(CE, LOW);
delay(1);
delay(10);
for (int b = 0; b < 8; b++) {
digitalWrite(DP[b], bitRead(data, b));
}
unsigned long time_i, time_f, time;
time_i = micros();
// Start write
digitalWrite(WE, LOW);
// End write
digitalWrite(WE, HIGH);
time = micros();
Serial.println(time_f - time_i, DEC);
delay(1);
digitalWrite(OE, LOW);
delay(1);
digitalWrite(CE, HIGH);
delay(1);
}
//------------------------ Read Byte ----------------------
byte readByte(int address) {
setupDataBus(INPUT);
setupAddressBus(OUTPUT);
setupControlPins(OUTPUT);
byte val;
digitalWrite(WE, HIGH);
delay(1);
digitalWrite(CE, HIGH);
delay(1);
digitalWrite(OE, HIGH);
delay(1);
Serial.print("Read Byte: ");
for (int b = 0; b < 7; b++) {
digitalWrite(AP[b], bitRead(address, b));
}
Serial.print(address, HEX); /// print Address
Serial.print(", ");
delay(1);
digitalWrite(WE, HIGH);
delay(1);
digitalWrite(CE, LOW);
delay(1);
digitalWrite(OE, LOW);
delay(1);
for (int b = 0; b < 8; b++) {
bitWrite(val, b, digitalRead(DP[b]));
}
Serial.print(val, HEX); /// print Bit
delay(1);
digitalWrite(OE, HIGH);
delay(1);
digitalWrite(CE, HIGH);
delay(1);
digitalWrite(WE, HIGH);
Serial.println();
return val;
}
//------------------------ SETUP ----------------------
void setup() {
setupDataBus(OUTPUT);
setupAddressBus(OUTPUT);
pinMode(WE, OUTPUT);
pinMode(OE, OUTPUT);
pinMode(CE, OUTPUT);
Serial.begin(9600);
}
//------------------------ LOOP -----------------------
void loop() {
// init
digitalWrite(OE, HIGH);
digitalWrite(CE, HIGH);
digitalWrite(WE, HIGH);
Serial.println("Initializing pins for write...");
delay(1000);
//for (int i = 0; i < sizeof(data); i++) {
//writeByte(i, data[i]);
//}
for (int i = 0; i < sizeof(data); i++) {
readByte(i);
}
while (true);
}
How to write a lookup-table into an 28C64 parallel EEPROM?
Based on the program from this post 28C64 EEPROM Programming Using Arduino, I would like to write, using Arduino Mega, a lookup-table that contains one sinewave cycle, created in Excel. I would like this table to be written in address "1" in the EEPROM. I have encoded the table in hex, but I am not sure how to split it into proper code. I would also like to read the table with the Arduino Serial Plotter instead of Serial Printer. Thanks.
sinus wave in HEX:
0004080B 0F14161C 1E23282A 2F32373A 3F43464B 4E53575B 5F63676B 6F73777B 7E83868B 8E93979A 9FA2A7AB AEB3B6BB BEC3C6CB CED3D7DA DFE2E7EA EFF2F7FA
the code:
#define WE 52
#define OE 51
#define CE 53
#define NUM_ADDR 3
int DP[8] = {22, 23, 24, 25, 26, 27, 28, 29};
int AP[] = {37, 36, 35};
byte data[] = {0xB080400, 0x1C16140F, 0x2A28231E, 2F32373A, 0x4B46433F, 0x5B57534E, 5F63676B, 0x7B77736F, 0x8B86837E, 0x9A97938E, 0xABA7A29F, 0xBBB6B3AE, 0xCBC6C3BE, 0xDAD7D3CE, 0xEAE7E2DF, 0xFAF7F2EF}; /// Sinus Lookup-Table
//------------------------ Init ----------------------------
void setupDataBus(int mode) {
for (int i = 0; i < 8; i++) {
pinMode(DP[i], mode);
}
}
void setupControlPins(int mode) {
pinMode(WE, mode);
pinMode(OE, mode);
pinMode(CE, mode);
}
void setupAddressBus(int mode) {
for (int i = 0; i < NUM_ADDR; i++) {
pinMode(AP[i], mode);
}
}
//------------------------ Write Byte ----------------------
void writeByte(int address, byte data) {
setupDataBus(OUTPUT);
setupAddressBus(OUTPUT);
setupControlPins(OUTPUT);
Serial.print("Write Byte: ");
for (int b = 0; b < 7; b++) {
digitalWrite(AP[b], bitRead(address, b));
}
Serial.print(address, HEX);
Serial.print(", ");
Serial.print(data, HEX);
Serial.println();
delay(1);
// Enable write
digitalWrite(OE, HIGH);
delay(1);
digitalWrite(CE, LOW);
delay(1);
delay(10);
for (int b = 0; b < 8; b++) {
digitalWrite(DP[b], bitRead(data, b));
}
unsigned long time_i, time_f, time;
time_i = micros();
// Start write
digitalWrite(WE, LOW);
// End write
digitalWrite(WE, HIGH);
time = micros();
Serial.println(time_f - time_i, DEC);
delay(1);
digitalWrite(OE, LOW);
delay(1);
digitalWrite(CE, HIGH);
delay(1);
}
//------------------------ Read Byte ----------------------
byte readByte(int address) {
setupDataBus(INPUT);
setupAddressBus(OUTPUT);
setupControlPins(OUTPUT);
byte val;
digitalWrite(WE, HIGH);
delay(1);
digitalWrite(CE, HIGH);
delay(1);
digitalWrite(OE, HIGH);
delay(1);
Serial.print("Read Byte: ");
for (int b = 0; b < 7; b++) {
digitalWrite(AP[b], bitRead(address, b));
}
Serial.print(address, HEX); /// print Address
Serial.print(", ");
delay(1);
digitalWrite(WE, HIGH);
delay(1);
digitalWrite(CE, LOW);
delay(1);
digitalWrite(OE, LOW);
delay(1);
for (int b = 0; b < 8; b++) {
bitWrite(val, b, digitalRead(DP[b]));
}
Serial.print(val, HEX); /// print Bit
delay(1);
digitalWrite(OE, HIGH);
delay(1);
digitalWrite(CE, HIGH);
delay(1);
digitalWrite(WE, HIGH);
Serial.println();
return val;
}
//------------------------ SETUP ----------------------
void setup() {
setupDataBus(OUTPUT);
setupAddressBus(OUTPUT);
pinMode(WE, OUTPUT);
pinMode(OE, OUTPUT);
pinMode(CE, OUTPUT);
Serial.begin(9600);
}
//------------------------ LOOP -----------------------
void loop() {
// init
digitalWrite(OE, HIGH);
digitalWrite(CE, HIGH);
digitalWrite(WE, HIGH);
Serial.println("Initializing pins for write...");
delay(1000);
//for (int i = 0; i < sizeof(data); i++) {
//writeByte(i, data[i]);
//}
for (int i = 0; i < sizeof(data); i++) {
readByte(i);
}
while (true);
}