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Refactored, analogue tested

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peteGSX 2023-01-29 10:06:01 +10:00 committed by peteGSX
parent 53215b496e
commit 0c2f8428df
1 changed files with 24 additions and 19 deletions
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43
IO_EXIOExpander.h
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@ -49,12 +49,15 @@
*/
class EXIOExpander : public IODevice {
public:
static void create(VPIN vpin, int nPins, uint8_t i2cAddress) {
if (checkNoOverlap(vpin, nPins, i2cAddress)) new EXIOExpander(vpin, nPins, i2cAddress);
static void create(VPIN vpin, int nPins, uint8_t i2cAddress) {
if (checkNoOverlap(vpin, nPins, i2cAddress)) new EXIOExpander(vpin, nPins, i2cAddress);
}
private:
// Constructor
EXIOExpander(VPIN firstVpin, int nPins, uint8_t i2cAddress) {
EXIOExpander(VPIN firstVpin, int nPins, uint8_t i2cAddress) {
_firstVpin = firstVpin;
_nPins = nPins;
@ -68,6 +71,16 @@ private:
// Initialise EX-IOExander device
I2CManager.begin();
if (I2CManager.exists(_i2cAddress)) {
_command2Buffer[0] = EXIOINIT;
_command2Buffer[1] = _nPins;
// Send config, if EXIOINITA returned, we're good, setup analogue input buffer, otherwise go offline
I2CManager.read(_i2cAddress, _receive2Buffer, 2, _command2Buffer, 2);
if (_receive2Buffer[0] == EXIOINITA) {
_numAnaloguePins = _receive2Buffer[1];
_analoguePinBytes = _numAnaloguePins * 2;
_analogueInputStates = (byte*) calloc(_analoguePinBytes, 1);
_analoguePinMap = (uint8_t*) calloc(_numAnaloguePins, 1);
} else {
_command2Buffer[0] = EXIOINIT;
_command2Buffer[1] = _nPins;
// Send config, if EXIOINITA returned, we're good, setup analogue input buffer, otherwise go offline
@ -85,9 +98,14 @@ private:
// We now need to retrieve the analogue pin map
_command1Buffer[0] = EXIOINITA;
I2CManager.read(_i2cAddress, _analoguePinMap, _numAnaloguePins, _command1Buffer, 1);
// We now need to retrieve the analogue pin map
_command1Buffer[0] = EXIOINITA;
I2CManager.read(_i2cAddress, _analoguePinMap, _numAnaloguePins, _command1Buffer, 1);
// Attempt to get version, if we don't get it, we don't care, don't go offline
_command1Buffer[0] = EXIOVER;
I2CManager.read(_i2cAddress, _versionBuffer, 3, _command1Buffer, 1);
_command1Buffer[0] = EXIOVER;
I2CManager.read(_i2cAddress, _versionBuffer, 3, _command1Buffer, 1);
_majorVer = _versionBuffer[0];
_minorVer = _versionBuffer[1];
_patchVer = _versionBuffer[2];
@ -102,7 +120,6 @@ private:
}
}
// Digital input pin configuration, used to enable on EX-IOExpander device and set pullups if in use
// Digital input pin configuration, used to enable on EX-IOExpander device and set pullups if in use
bool _configure(VPIN vpin, ConfigTypeEnum configType, int paramCount, int params[]) override {
if (paramCount != 1) return false;
@ -115,19 +132,16 @@ private:
return true;
}
// Analogue input pin configuration, used to enable on EX-IOExpander device
// Analogue input pin configuration, used to enable on EX-IOExpander device
int _configureAnalogIn(VPIN vpin) override {
int pin = vpin - _firstVpin;
_command2Buffer[0] = EXIOENAN;
_command2Buffer[1] = pin;
I2CManager.write(_i2cAddress, _command2Buffer, 2);
_command2Buffer[0] = EXIOENAN;
_command2Buffer[1] = pin;
I2CManager.write(_i2cAddress, _command2Buffer, 2);
return true;
}
// Main loop, collect both digital and analogue pin states continuously (faster sensor/input reads)
// Main loop, collect both digital and analogue pin states continuously (faster sensor/input reads)
void _loop(unsigned long currentMicros) override {
(void)currentMicros; // remove warning
@ -135,22 +149,10 @@ private:
I2CManager.read(_i2cAddress, _digitalInputStates, _digitalPinBytes, _command1Buffer, 1);
_command1Buffer[0] = EXIORDAN;
I2CManager.read(_i2cAddress, _analogueInputStates, _analoguePinBytes, _command1Buffer, 1);
_command1Buffer[0] = EXIORDD;
I2CManager.read(_i2cAddress, _digitalInputStates, _digitalPinBytes, _command1Buffer, 1);
_command1Buffer[0] = EXIORDAN;
I2CManager.read(_i2cAddress, _analogueInputStates, _analoguePinBytes, _command1Buffer, 1);
}
// Obtain the correct analogue input value
// Obtain the correct analogue input value
int _readAnalogue(VPIN vpin) override {
int pin = vpin - _firstVpin;
uint8_t _pinLSBByte;
for (uint8_t aPin = 0; aPin < _numAnaloguePins; aPin++) {
if (_analoguePinMap[aPin] == pin) {
_pinLSBByte = aPin * 2;
}
}
int pin = vpin - _firstVpin;
uint8_t _pinLSBByte;
for (uint8_t aPin = 0; aPin < _numAnaloguePins; aPin++) {
@ -162,7 +164,6 @@ private:
return (_analogueInputStates[_pinMSBByte] << 8) + _analogueInputStates[_pinLSBByte];
}
// Obtain the correct digital input value
// Obtain the correct digital input value
int _read(VPIN vpin) override {
int pin = vpin - _firstVpin;
@ -180,10 +181,10 @@ private:
}
void _display() override {
DIAG(F("EX-IOExpander I2C:x%x v%d.%d.%d Vpins %d-%d %S"),
DIAG(F("EX-IOExpander I2C:x%x v%d.%d.%d Vpins %d-%d %S"),
_i2cAddress, _majorVer, _minorVer, _patchVer,
(int)_firstVpin, (int)_firstVpin+_nPins-1,
(int)_firstVpin, (int)_firstVpin+_nPins-1,
_deviceState == DEVSTATE_FAILED ? F("OFFLINE") : F(""));
}
@ -202,6 +203,10 @@ private:
byte _command2Buffer[2];
byte _receive2Buffer[2];
uint8_t* _analoguePinMap;
byte _command1Buffer[1];
byte _command2Buffer[2];
byte _receive2Buffer[2];
uint8_t* _analoguePinMap;
enum {
EXIOINIT = 0xE0, // Flag to initialise setup procedure