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Update I2C address, fix bug setting analogue pins

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This commit is contained in:
peteGSX 2022-12-13 19:51:41 +10:00
parent 3862f7250d
commit 8ecb408da7
1 changed files with 62 additions and 30 deletions
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92
IO_EXIOExpander.h
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@ -82,31 +82,58 @@ private:
void _setupDevice() { void _setupDevice() {
// Send digital and analogue pin counts // Send digital and analogue pin counts
I2CManager.write(_i2cAddress, 3, REG_EXIOINIT, _numDigitalPins, _numAnaloguePins); uint8_t _setupBuffer[3] = {EXIOINIT, _numDigitalPins, _numAnaloguePins};
// Enable digital ports // I2CManager.write(_i2cAddress, 3, EXIOINIT, _numDigitalPins, _numAnaloguePins);
_digitalPinBytes = (_numDigitalPins + 7) / 8 + 1; I2CManager.write(_i2cAddress, _setupBuffer, 3, &_i2crb);
uint8_t _enableDigitalPins[_digitalPinBytes]; _activity = EXIODPIN;
_enableDigitalPins[0] = REG_EXIODPIN; }
for (uint8_t byte = 1; byte < _digitalPinBytes; byte++) {
_enableDigitalPins[byte] = 0; void _loop(unsigned long currentMicros) override {
if (_i2crb.status == I2C_STATUS_PENDING) return;
if (_i2crb.status == I2C_STATUS_OK) {
switch(_activity) {
case EXIODPIN:
// Enable digital ports
_digitalPinBytes = (_numDigitalPins + 7) / 8 + 1;
// uint8_t _enableDigitalPins[_digitalPinBytes];
// _enableDigitalPins[0] = EXIODPIN;
_digitalOutBuffer[0] = EXIODPIN;
for (uint8_t byte = 1; byte < _digitalPinBytes; byte++) {
// _enableDigitalPins[byte] = 0;
_digitalOutBuffer[byte] = 0;
}
for (uint8_t pin = 0; pin < _numDigitalPins; pin++) {
int pinByte = pin / 8;
// bitSet(_enableDigitalPins[pinByte + 1], pin - pinByte * 8);
bitSet(_digitalOutBuffer[pinByte + 1], pin - pinByte * 8);
}
// I2CManager.write(_i2cAddress, _enableDigitalPins, _digitalPinBytes, &_i2crb);
I2CManager.write(_i2cAddress, _digitalOutBuffer, _digitalPinBytes, &_i2crb);
_activity = EXIOAPIN;
break;
case EXIOAPIN:
// Enable analogue ports
_analoguePinBytes = (_numAnaloguePins + 7) / 8 + 1;
// uint8_t _enableAnaloguePins[_analoguePinBytes];
// _enableAnaloguePins[0] = EXIOAPIN;
_analogueOutBuffer[0] = EXIOAPIN;
for (uint8_t byte = 1; byte < _analoguePinBytes; byte++) {
// _enableAnaloguePins[byte] = 0;
_analogueOutBuffer[byte] = 0;
}
for (uint8_t pin = 0; pin < _numAnaloguePins; pin++) {
int pinByte = pin / 8;
// bitSet(_enableAnaloguePins[pinByte + 1], pin - pinByte * 8);
bitSet(_analogueOutBuffer[pinByte + 1], pin - pinByte * 8);
}
// I2CManager.write(_i2cAddress, _enableAnaloguePins, _analoguePinBytes, &_i2crb);
I2CManager.write(_i2cAddress, _analogueOutBuffer, _analoguePinBytes, &_i2crb);
_activity = EXIORDY;
break;
default:
break;
}
} }
for (uint8_t pin = 0; pin < _numDigitalPins; pin++) {
int pinByte = pin / 8;
bitSet(_enableDigitalPins[pinByte + 1], pin - pinByte * 8);
}
I2CManager.write(_i2cAddress, _enableDigitalPins, _digitalPinBytes, &_i2crb);
// Enable analogue ports
_analoguePinBytes = (_numAnaloguePins + 7) / 8 + 1;
uint8_t _enableAnaloguePins[_analoguePinBytes];
_enableAnaloguePins[0] = REG_EXIOAPIN;
for (uint8_t byte = 1; byte < _analoguePinBytes; byte++) {
_enableAnaloguePins[byte] = 0;
}
for (uint8_t pin = 0; pin < _numAnaloguePins; pin++) {
int pinByte = pin / 8;
bitSet(_enableAnaloguePins[pinByte + 1], pin - pinByte * 8);
}
I2CManager.write(_i2cAddress, _enableAnaloguePins, _analoguePinBytes, &_i2crb);
} }
void _display() override { void _display() override {
@ -119,15 +146,20 @@ private:
uint8_t _numAnaloguePins; uint8_t _numAnaloguePins;
int _digitalPinBytes; int _digitalPinBytes;
int _analoguePinBytes; int _analoguePinBytes;
uint8_t _digitalOutBuffer[EXIO_NANO_DIGITAL_PINS + 1];
uint8_t _digitalInBufer[EXIO_NANO_DIGITAL_PINS];
uint8_t _analogueOutBuffer[EXIO_NANO_ANALOGUE_PINS + 1];
uint8_t _analogueInBuffer[EXIO_NANO_ANALOGUE_PINS];
uint8_t _activity;
I2CRB _i2crb; I2CRB _i2crb;
enum { enum {
REG_EXIOINIT = 0xE0, // Flag to initialise setup procedure EXIOINIT = 0xE0, // Flag to initialise setup procedure
REG_EXIODPIN = 0xE1, // Flag we're sending digital pin assignments EXIODPIN = 0xE1, // Flag we're sending digital pin assignments
REG_EXIOAPIN = 0xE2, // Flag we're sending analogue pin assignments EXIOAPIN = 0xE2, // Flag we're sending analogue pin assignments
REG_EXIORDY = 0xE3, // Flag we have completed setup procedure, also for EX-IO to ACK setup EXIORDY = 0xE3, // Flag we have completed setup procedure, also for EX-IO to ACK setup
REG_EXIODDIR = 0xE4, // Flag we're sending digital pin direction configuration EXIODDIR = 0xE4, // Flag we're sending digital pin direction configuration
REG_EXIODPUP = 0xE5, // Flag we're sending digital pin pullup configuration EXIODPUP = 0xE5, // Flag we're sending digital pin pullup configuration
}; };
}; };