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More interrupt changes.

48kHz
Jonathan Naylor 2016-11-29 09:22:32 +00:00 committed by GitHub
parent 91b4dddd8b
commit a40506aff0
1 changed files with 7 additions and 6 deletions
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13
IOTeensy.cpp
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@ -76,7 +76,7 @@ void CIO::initInt()
void CIO::startInt() void CIO::startInt()
{ {
// Initialise ADC0 // Initialise ADC0
// SIM_SCGC6 |= SIM_SCGC6_ADC0; SIM_SCGC6 |= SIM_SCGC6_ADC0;
ADC0_CFG1 = ADC_CFG1_ADIV(1) | ADC_CFG1_ADICLK(1) | // Single-ended 12 bits, long sample time ADC0_CFG1 = ADC_CFG1_ADIV(1) | ADC_CFG1_ADICLK(1) | // Single-ended 12 bits, long sample time
ADC_CFG1_MODE(1) | ADC_CFG1_ADLSMP; ADC_CFG1_MODE(1) | ADC_CFG1_ADLSMP;
ADC0_CFG2 = ADC_CFG2_MUXSEL | ADC_CFG2_ADLSTS(2); // Select channels ADxxxb ADC0_CFG2 = ADC_CFG2_MUXSEL | ADC_CFG2_ADLSTS(2); // Select channels ADxxxb
@ -84,7 +84,7 @@ void CIO::startInt()
ADC0_SC3 = ADC_SC3_AVGE | ADC_SC3_AVGS(0); // Enable averaging, 4 samples ADC0_SC3 = ADC_SC3_AVGE | ADC_SC3_AVGS(0); // Enable averaging, 4 samples
ADC0_SC3 = ADC_SC3_CAL; ADC0_SC3 = ADC_SC3_CAL;
while ((ADC0_SC3 & ADC_SC3_CAL) != ADC_SC3_CAL) // Wait for calibration while (ADC0_SC3 & ADC_SC3_CAL) // Wait for calibration
; ;
uint16_t sum0 = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + // Plus side gain uint16_t sum0 = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + // Plus side gain
@ -97,7 +97,7 @@ void CIO::startInt()
#if defined(SEND_RSSI_DATA) #if defined(SEND_RSSI_DATA)
// Initialise ADC1 // Initialise ADC1
// SIM_SCGC3 |= SIM_SCGC3_ADC1; SIM_SCGC3 |= SIM_SCGC3_ADC1;
ADC1_CFG1 = ADC_CFG1_ADIV(1) | ADC_CFG1_ADICLK(1) | // Single-ended 12 bits, long sample time ADC1_CFG1 = ADC_CFG1_ADIV(1) | ADC_CFG1_ADICLK(1) | // Single-ended 12 bits, long sample time
ADC_CFG1_MODE(1) | ADC_CFG1_ADLSMP; ADC_CFG1_MODE(1) | ADC_CFG1_ADLSMP;
ADC1_CFG2 = ADC_CFG2_MUXSEL | ADC_CFG2_ADLSTS(2); // Select channels ADxxxb ADC1_CFG2 = ADC_CFG2_MUXSEL | ADC_CFG2_ADLSTS(2); // Select channels ADxxxb
@ -105,7 +105,7 @@ void CIO::startInt()
ADC1_SC3 = ADC_SC3_AVGE | ADC_SC3_AVGS(0); // Enable averaging, 4 samples ADC1_SC3 = ADC_SC3_AVGE | ADC_SC3_AVGS(0); // Enable averaging, 4 samples
ADC1_SC3 = ADC_SC3_CAL; ADC1_SC3 = ADC_SC3_CAL;
while ((ADC1_SC3 & ADC_SC3_CAL) != ADC_SC3_CAL) // Wait for calibration while (ADC1_SC3 & ADC_SC3_CAL) // Wait for calibration
; ;
uint16_t sum1 = ADC1_CLPS + ADC1_CLP4 + ADC1_CLP3 + // Plus side gain uint16_t sum1 = ADC1_CLPS + ADC1_CLP4 + ADC1_CLP3 + // Plus side gain
@ -113,6 +113,7 @@ void CIO::startInt()
sum1 = (sum1 / 2U) | 0x8000U; sum1 = (sum1 / 2U) | 0x8000U;
ADC1_PG = sum1; ADC1_PG = sum1;
ADC1_SC1A = ADC_SC1_AIEN | PIN_RSSI; // Enable ADC interrupt, use A2
NVIC_ENABLE_IRQ(IRQ_ADC1); NVIC_ENABLE_IRQ(IRQ_ADC1);
#endif #endif
@ -131,7 +132,7 @@ void CIO::startInt()
!SIM_SOPT7_ADC0PRETRGSEL | !SIM_SOPT7_ADC0PRETRGSEL |
SIM_SOPT7_ADC0TRGSEL(14); SIM_SOPT7_ADC0TRGSEL(14);
NVIC_ENABLE_IRQ(IRQ_LPTMR); // NVIC_ENABLE_IRQ(IRQ_LPTMR);
#else #else
// Setup PDB for ADC0 (and ADC1) at 24 kHz // Setup PDB for ADC0 (and ADC1) at 24 kHz
SIM_SCGC6 |= SIM_SCGC6_PDB; // Enable PDB clock SIM_SCGC6 |= SIM_SCGC6_PDB; // Enable PDB clock
@ -141,7 +142,7 @@ void CIO::startInt()
PDB0_SC = PDB_SC_TRGSEL(15) | PDB_SC_PDBEN | // SW trigger, enable interrupts, continuous mode PDB0_SC = PDB_SC_TRGSEL(15) | PDB_SC_PDBEN | // SW trigger, enable interrupts, continuous mode
PDB_SC_PDBIE | PDB_SC_CONT | PDB_SC_LDOK; // No prescaling PDB_SC_PDBIE | PDB_SC_CONT | PDB_SC_LDOK; // No prescaling
PDB0_SC |= PDB_SC_SWTRIG; // Software trigger (reset and restart counter) PDB0_SC |= PDB_SC_SWTRIG; // Software trigger (reset and restart counter)
NVIC_ENABLE_IRQ(IRQ_PDB); // NVIC_ENABLE_IRQ(IRQ_PDB);
#endif #endif
// Initialise the DAC // Initialise the DAC