53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
// this sketch is for tweaking soft i2c signals
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// Uncomment next two lines to test fast software I2C
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// #include <DigitalPin.h>
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// #define USE_FAST_I2C_MASTER 1
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#include <I2cMaster.h>
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const uint8_t sdaPin = 8;
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const uint8_t sclPin = 7;
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#if USE_FAST_I2C_MASTER
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FastI2cMaster<sdaPin, sclPin, false> i2c;
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#else // USE_FAST_I2C_MASTER
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SoftI2cMaster i2c(sdaPin, sclPin);
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#endif
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// also test base class idea
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I2cMasterBase *bus;
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uint8_t mode;
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//------------------------------------------------------------------------------
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void setup(void) {
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Serial.begin(9600);
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// convert softI2cMaster to TwoWireBase to test base class idea
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bus = &i2c;
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Serial.println("enter 0 for write, 1 for read, 2 for start/stop");
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while (!Serial.available());
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mode = Serial.read();
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if (mode == '0') {
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Serial.println("Write Mode");
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} else if (mode == '1') {
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Serial.println("Read Mode");
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} else if (mode == '2' ) {
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Serial.println("Start/Stop");
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} else {
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Serial.println("Bad Option");
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while(1);
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}
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}
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//------------------------------------------------------------------------------
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void loop(void) {
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if (mode == '0') {
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bus->write(0X55);
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} else if (mode == '1') {
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bus->read(0);
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} else {
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bus->start(0XAA);
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bus->stop();
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}
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delay(1);
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} |