int main(){
cout << "Starting the RPi MAX7219 example" << endl;
SPIDevice *max = new SPIDevice(0,1);
max->setSpeed(10000000); // max speed is 10MHz
max->setMode(SPIDevice::MODE0);
// turn on the display and disable test mode -- just in case:
max->writeRegister(0x0C, 0x01);
max->writeRegister(0x0F, 0x00);
max->writeRegister(0x0B, 0x07); // set 8 digit mode
max->writeRegister(0x09, 0xFF); // set decode mode on all
for(int i=1; i<9; i++){
max->writeRegister((unsigned int)i, 0x0A); // clear to dashes
}
for(int i=0; i<=100000; i++){
int val = i;
unsigned int place = 1;
while(val>0){
max->writeRegister( place++, (unsigned char) val%10);
val = val/10;
}
// usleep(1000);
}
max->close();
cout << "End of the RPi MAX7219 example" << endl;
return 0;
}
int main(){
cout << "Starting EBB SPI ADC Example" << endl;
SPIDevice *busDevice = new SPIDevice(1,0); //Using second SPI bus (both loaded)
busDevice->setSpeed(400000); // Have access to SPI Device object
busDevice->setMode(SPIDevice::MODE0);
unsigned char send[3], receive[3];
send[0] = 0b00000110; // The Start Bit followed
// Set the SGL/Diff and D mode -- e.g., 1000 means single ended CH0 value
send[1] = 0; // The MSB is the Single/Diff bit and it is followed by 000 for CH0
send[2] = 0; // This byte doesn't need to be set, just for a clear display
busDevice->transfer(send, receive, 3);
cout << "Response bytes are " << (int)receive[1] << "," << (int)receive[2] << endl;
// Use the 8-bits of the second value and the two LSBs of the first value
int value = combineValues(receive[1]&0b00001111, receive[2]);
cout << "This is the value " << value << " out of 4096." << endl;
cout << "End of EBB SPI ADC Example" << endl;
}
int main(){
SPIDevice *busDevice = new SPIDevice(1,0); //Using second SPI bus (both loaded)
busDevice->setSpeed(4000000); // Have access to SPI Device object
busDevice->setMode(SPIDevice::MODE0);
unsigned char send[3], receive[3];
int samples[SAMPLES];
send[0] = 0b00000001; // The Start Bit followed
// Set the SGL/Diff and D mode -- e.g., 1000 means single ended CH0 value
send[1] = 0b10000000; // The MSB is the Single/Diff bit and it is followed by 000 for CH0
send[2] = 0; // This byte doesn't need to be set, just for a clear display
for(int i=0; i<SAMPLES; i++){
busDevice->transfer(send, receive, 3);
samples[i] = (short((receive[1]&0b00000011))<<8)|(short(receive[2]));
}
for(int i=0; i<SAMPLES; i++){
cout << i << " " << samples[i] << endl;
}
}
/*
* Start the plugin
* For now we just have one device.
*/
bool SPIPlugin::StartHook() {
const string uid_str = m_preferences->GetValue(SPI_BASE_UID_KEY);
auto_ptr<UID> base_uid(UID::FromString(uid_str));
if (!base_uid.get()) {
OLA_WARN << "Invalid UID " << uid_str << ", defaulting to "
<< DEFAULT_BASE_UID;
base_uid.reset(UID::FromString(DEFAULT_BASE_UID));
if (!base_uid.get()) {
OLA_WARN << "Invalid UID " << DEFAULT_BASE_UID;
return false;
}
}
vector<string> spi_files;
vector<string> spi_prefixes = m_preferences->GetMultipleValue(
SPI_DEVICE_PREFIX_KEY);
if (!ola::file::FindMatchingFiles("/dev", spi_prefixes, &spi_files)) {
return false;
}
ola::rdm::UIDAllocator uid_allocator(*base_uid);
vector<string>::const_iterator iter = spi_files.begin();
for (; iter != spi_files.end(); ++iter) {
SPIDevice *device = new SPIDevice(this, m_preferences, m_plugin_adaptor,
*iter, &uid_allocator);
if (!device) {
continue;
}
if (!device->Start()) {
delete device;
continue;
}
m_devices.push_back(device);
m_plugin_adaptor->RegisterDevice(device);
}
return true;
}
int main(){
// cout << "Starting RPi SPI ADC Multi Example" << endl;
SPIDevice *busDevice = new SPIDevice(0,0); //Using second SPI bus (both loaded)
busDevice->setSpeed(3900000); // Have access to SPI Device object
busDevice->setMode(SPIDevice::MODE0);
unsigned char send[3], receive[3];
int samples[SAMPLES];
send[0] = 0b00000001; // The Start Bit followed
// Set the SGL/Diff and D mode -- e.g., 1000 means single ended CH0 value
send[1] = 0b10000000; // The MSB is the Single/Diff bit and it is followed by 000 for CH0
send[2] = 0; // This byte doesn't need to be set, just for a clear display
for(int i=0; i<SAMPLES; i++){
busDevice->transfer(send, receive, 3);
samples[i]=combineValues(receive[1]&0b00000011, receive[2]);
}
// cout << "The samples that were captured are:" << endl;
for(int i=0; i<SAMPLES; i++){
cout << i << " " << samples[i] << endl;
}
// cout << "\nEnd of RPi SPI ADC Example" << endl;
}