45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
const char ADDR[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
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// { A15, A14, A13, A12, A11, A10, A9, A8, A7, A6, A5, A4, A3, A2, A1, A0 }
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const char DATA[] = { 16, 17, 18, 19, 20, 21, 22, 26 };
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// { D7, D6, D5, D4, D3, D2, D1, D0 }
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#define CLOCK 28
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#define RW 27
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void setup() {
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for (int n = 0; n < 16; n += 1){
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pinMode(ADDR[n], INPUT);
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}
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for (int n = 0; n < 8; n += 1){
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pinMode(DATA[n], INPUT);
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}
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pinMode(CLOCK, INPUT);
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pinMode(RW, INPUT);
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attachInterrupt(digitalPinToInterrupt(CLOCK), onClock, RISING);
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Serial.begin(57600);
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}
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void loop() {
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}
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void onClock() {
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char output[15];
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unsigned int address = 0;
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for (int n = 0; n < 16; n += 1){
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int bit = digitalRead(ADDR[n]) ? 1 : 0;
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Serial.print(bit);
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address = (address << 1) + bit;
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}
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Serial.print(" ");
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unsigned int data = 0;
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for (int n = 0; n < 8; n += 1){
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int bit = digitalRead(DATA[n]) ? 1 : 0;
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Serial.print(bit);
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data = (data << 1) + bit;
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}
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sprintf(output, " %04x %c %02x", address, digitalRead(RW) ? 'r' : 'W', data);
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Serial.println(output);
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}
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