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Digital pin config done, digital read in progress

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This commit is contained in:
peteGSX 2022-12-19 14:24:49 +10:00
parent 943494385f
commit 3973996344
1 changed files with 39 additions and 14 deletions
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53
IO_EXIOExpander.h
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@ -73,10 +73,11 @@ private:
_i2cAddress = i2cAddress; _i2cAddress = i2cAddress;
_numDigitalPins = numDigitalPins; _numDigitalPins = numDigitalPins;
_numAnaloguePins = numAnaloguePins; _numAnaloguePins = numAnaloguePins;
_digitalOutBuffer = (byte *)calloc(_numDigitalPins + 1, 1); // _digitalOutBuffer = (byte *)calloc(_numDigitalPins + 1, 1);
_digitalInBuffer = (byte *)calloc(_numDigitalPins, 1); // _digitalInBuffer = (byte *)calloc(_numDigitalPins, 1);
_analogueValues = (uint16_t *)calloc(_numAnaloguePins, 1); _analogueValues = (uint16_t *)calloc(_numAnaloguePins, 1);
_currentAPin = _nPins - _numAnaloguePins; _currentAPin = _nPins - _numAnaloguePins;
int _dPinArrayLen = (_numDigitalPins + 7) / 8;
addDevice(this); addDevice(this);
} }
@ -120,17 +121,40 @@ private:
// delayUntil(currentMicros + 2000000); // Delay 2 seconds while bug fixing/developing // delayUntil(currentMicros + 2000000); // Delay 2 seconds while bug fixing/developing
} }
bool _configure(VPIN vpin, ConfigTypeEnum configType, int paramCount, int params[]) override {
if (configType != CONFIGURE_INPUT) return false;
if (paramCount != 1) return false;
bool pullup = params[0];
int pin = vpin - _firstVpin;
uint8_t mask = 1 << ((pin-_firstVpin) % 8);
DIAG(F("Configure vpin|pin %d|%d as input, pullup %d"), vpin, pin, pullup);
_digitalOutBuffer[0] = EXIODPUP;
_digitalOutBuffer[1] = pin;
_digitalOutBuffer[2] = pullup;
I2CManager.write(_i2cAddress, _digitalOutBuffer, 3, &_i2crb);
return true;
}
int _readAnalogue(VPIN vpin) override { int _readAnalogue(VPIN vpin) override {
int pin = vpin - _firstVpin; int pin = vpin - _firstVpin;
return _analogueValues[pin]; return _analogueValues[pin];
} }
int _read(VPIN vpin) override {
int pin = vpin - _firstVpin;
_digitalOutBuffer[0] = EXIORDD;
_digitalOutBuffer[1] = pin;
_digitalOutBuffer[2] = 0x00; // Don't need to use this for reading
int _value = I2CManager.read(_i2cAddress, _digitalInBuffer, 1, _digitalOutBuffer, 3, &_i2crb);
return _value;
}
void _write(VPIN vpin, int value) override { void _write(VPIN vpin, int value) override {
int pin = vpin - _firstVpin; int pin = vpin - _firstVpin;
_digitalWriteBuffer[0] = EXIOWRD; _digitalOutBuffer[0] = EXIOWRD;
_digitalWriteBuffer[1] = pin; _digitalOutBuffer[1] = pin;
_digitalWriteBuffer[2] = value; _digitalOutBuffer[2] = value;
I2CManager.write(_i2cAddress, _digitalWriteBuffer, 3, &_i2crb); I2CManager.write(_i2cAddress, _digitalOutBuffer, 3, &_i2crb);
} }
void _display() override { void _display() override {
@ -144,11 +168,12 @@ private:
int _digitalPinBytes; int _digitalPinBytes;
int _analoguePinBytes; int _analoguePinBytes;
uint8_t _setupBuffer[3]; uint8_t _setupBuffer[3];
byte * _digitalOutBuffer = NULL; // byte * _digitalOutBuffer = NULL;
byte * _digitalInBuffer = NULL; // byte * _digitalInBuffer = NULL;
byte _analogueInBuffer[2]; byte _analogueInBuffer[2];
byte _analogueOutBuffer[2]; byte _analogueOutBuffer[2];
byte _digitalWriteBuffer[3]; byte _digitalOutBuffer[3];
byte _digitalInBuffer[1];
uint16_t * _analogueValues = NULL; uint16_t * _analogueValues = NULL;
uint8_t _currentAPin; // Current analogue pin to read uint8_t _currentAPin; // Current analogue pin to read
uint8_t _activity; uint8_t _activity;
@ -157,11 +182,11 @@ private:
enum { enum {
EXIOINIT = 0xE0, // Flag to initialise setup procedure EXIOINIT = 0xE0, // Flag to initialise setup procedure
EXIORDY = 0xE1, // Flag we have completed setup procedure, also for EX-IO to ACK setup EXIORDY = 0xE1, // Flag we have completed setup procedure, also for EX-IO to ACK setup
EXIODDIR = 0xE2, // Flag we're sending digital pin direction configuration EXIODPUP = 0xE2, // Flag we're sending digital pin pullup configuration
EXIODPUP = 0xE3, // Flag we're sending digital pin pullup configuration EXIOOP = 0xE3, // Flag to say we're operating normally
EXIOOP = 0xE4, // Flag to say we're operating normally EXIORDAN = 0xE4, // Flag to read an analogue input
EXIORDAN = 0xE5, // Flag to read an analogue input EXIOWRD = 0xE5, // Flag for digital write
EXIOWRD = 0xE6, // Flag for digital write EXIORDD = 0xE6, // Flag to read digital input
}; };
}; };