Having a great deal of issues with the following code. without the #if defined (arduino_teensy40)
this code runs flawlessly on a teensy 3.6. When the code has been updated to T4 -- there is a major error reported with the following errors:
'ADC0_CFG1' was not declared in this scope
sketch_feb18a: In function 'void setup()':
sketch_feb18a:39: error: 'ADC0_CFG1' was not declared in this scope
ADC0_CFG1 = 0b00011000;
^
sketch_feb18a:48: error: 'ADC0_CFG2' was not declared in this scope
ADC0_CFG2 = 0b00000;
^
sketch_feb18a:59: error: 'ADC0_SC2' was not declared in this scope
ADC0_SC2 = 0b0000000;
^
sketch_feb18a:71: error: 'ADC0_SC3' was not declared in this scope
ADC0_SC3 = 0b10000111;
^
sketch_feb18a:74: error: 'ADC_SC3_CAL' was not declared in this scope
while (ADC0_SC3 & ADC_SC3_CAL) {}
^
sketch_feb18a:78: error: 'ADC0_CLPS' was not declared in this scope
sum = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + ADC0_CLP2 + ADC0_CLP1 + ADC0_CLP0;
^
sketch_feb18a:78: error: 'ADC0_CLP4' was not declared in this scope
sum = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + ADC0_CLP2 + ADC0_CLP1 + ADC0_CLP0;
^
sketch_feb18a:78: error: 'ADC0_CLP3' was not declared in this scope
sum = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + ADC0_CLP2 + ADC0_CLP1 + ADC0_CLP0;
^
sketch_feb18a:78: error: 'ADC0_CLP2' was not declared in this scope
sum = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + ADC0_CLP2 + ADC0_CLP1 + ADC0_CLP0;
^
sketch_feb18a:78: error: 'ADC0_CLP1' was not declared in this scope
sum = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + ADC0_CLP2 + ADC0_CLP1 + ADC0_CLP0;
^
sketch_feb18a:78: error: 'ADC0_CLP0' was not declared in this scope
sum = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + ADC0_CLP2 + ADC0_CLP1 + ADC0_CLP0;
^
sketch_feb18a:80: error: 'ADC0_PG' was not declared in this scope
ADC0_PG = sum;
^
sketch_feb18a:81: error: 'ADC0_CLMS' was not declared in this scope
sum = ADC0_CLMS + ADC0_CLM4 + ADC0_CLM3 + ADC0_CLM2 + ADC0_CLM1 + ADC0_CLM0;
^
sketch_feb18a:81: error: 'ADC0_CLM4' was not declared in this scope
sum = ADC0_CLMS + ADC0_CLM4 + ADC0_CLM3 + ADC0_CLM2 + ADC0_CLM1 + ADC0_CLM0;
^
sketch_feb18a:81: error: 'ADC0_CLM3' was not declared in this scope
sum = ADC0_CLMS + ADC0_CLM4 + ADC0_CLM3 + ADC0_CLM2 + ADC0_CLM1 + ADC0_CLM0;
^
sketch_feb18a:81: error: 'ADC0_CLM2' was not declared in this scope
sum = ADC0_CLMS + ADC0_CLM4 + ADC0_CLM3 + ADC0_CLM2 + ADC0_CLM1 + ADC0_CLM0;
^
sketch_feb18a:81: error: 'ADC0_CLM1' was not declared in this scope
sum = ADC0_CLMS + ADC0_CLM4 + ADC0_CLM3 + ADC0_CLM2 + ADC0_CLM1 + ADC0_CLM0;
^
sketch_feb18a:81: error: 'ADC0_CLM0' was not declared in this scope
sum = ADC0_CLMS + ADC0_CLM4 + ADC0_CLM3 + ADC0_CLM2 + ADC0_CLM1 + ADC0_CLM0;
^
sketch_feb18a:83: error: 'ADC0_MG' was not declared in this scope
ADC0_MG = sum;
^
sketch_feb18a: In function 'void processData()':
sketch_feb18a:107: error: 'ADC0_SC1A' was not declared in this scope
ADC0_SC1A = 0b0000000;
^
sketch_feb18a:110: error: 'ADC_SC1_COCO' was not declared in this scope
while (!(ADC0_SC1A & ADC_SC1_COCO)) {}
^
sketch_feb18a:113: error: 'ADC0_RA' was not declared in this scope
ADC_res = ADC0_RA;
^
sketch_feb18a:120: error: 'GPIOC_PDOR' was not declared in this scope
GPIOC_PDOR |= 1; // 1 = 1<<0
^
I am unable to find documentation that points to the setting of the ADC for teensy 4
If anyone can help me figure out the errors that are happening... I am assuming that the the code is referencing registers that don't exist?
Wrong ADC registers?
Code:#if defined(ARDUINO_TEENSY40) // // code for Teensy 4.0 only // #elif defined(ARDUINO_TEENSY40) // // code for Teensy 4.0 only // #endif // Result from ADC int ADC_res; void setup() { // Prepare USB connection Serial.begin(0); // Prepare output signal pinMode(13, OUTPUT); // Prepare reset signal pinMode(15, OUTPUT); // Prepare intterrupt signal pinMode(14, INPUT); attachInterrupt(14, processData, RISING); // Configure ADC /* DEFAULT 0 ADLPC (Low-Power Configuration) 0 ADIV (Clock Divide Select) 0 0 ADLSMP (Sample time configuration) 0 MODE (Conversion mode selection) (00=8/9, 01=12/13, 10=10/11, 11=16/16 bit; diff=0/1) 0 0 ADICLK (Input Clock Select) 0 */ ADC0_CFG1 = 0b00011000; /* DEFAULT 0 MUXSEL (ADC Mux Select) 0 ADACKEN (Asynchrononous Clock Output Enable) 0 ADHSC (High-Speed Configuration) 0 ADLSTS (Long Sample Time Select) (00=+20 cycles, 01=+12, 10=+6, 11=+2) 0 */ ADC0_CFG2 = 0b00000; /* DEFAULT 0 ADTRG (Conversion Trigger Select) 0 ACFE (Compare Function Enable) 0 ACFGT (Compare Function Greater than Enable) 0 ACREN (Compare Function Range Enable) 0 ACREN (COmpare Function Range Enable) 0 DMAEN (DMA Enable) 0 REFSEL (Voltage Reference Selection) (00=default,01=alternate,10=reserved,11=reserved) */ ADC0_SC2 = 0b0000000; /* DEFAULT 0 CAL (Calibration) 0 CALF (read only) 0 (Reserved) 0 0 ADCO (Continuous Conversion Enable) 0 AVGS (Hardware Average Enable) 0 AVGS (Hardware Average Select) (00=4 times, 01=8, 10=16, 11=32) 0 */ ADC0_SC3 = 0b10000111; // Waiting for calibration to finish. The documentation is confused as to what flag to be waiting for (SC3[CAL] on page 663 and SC1n[COCO] on page 687+688). while (ADC0_SC3 & ADC_SC3_CAL) {} uint16_t sum; sum = ADC0_CLPS + ADC0_CLP4 + ADC0_CLP3 + ADC0_CLP2 + ADC0_CLP1 + ADC0_CLP0; sum = (sum / 2) | 0x8000; ADC0_PG = sum; sum = ADC0_CLMS + ADC0_CLM4 + ADC0_CLM3 + ADC0_CLM2 + ADC0_CLM1 + ADC0_CLM0; sum = (sum / 2) | 0x8000; ADC0_MG = sum; /* End of borrowed code */ } void loop() { } void processData() { // Wait for signal to reach peak delayMicroseconds(2); // DEBUG: Signal HIGH that ADC and then USB will be running //GPIOC_PDOR |= 1<<5; // Start ADC /* DEFAULT 0 AIEN (Interrupt Enable) 0 DIFF (0=single, 1=diff) 1 ADCH (00000=A10 for DIFF=0; 00000=A10+A11 for DIFF=1; See page 98 in documentation) 1 1 1 1 */ ADC0_SC1A = 0b0000000; // Wait for ADC while (!(ADC0_SC1A & ADC_SC1_COCO)) {} // Retrieve data from ADC ADC_res = ADC0_RA; // Send data away Serial.println( ADC_res ); Serial.send_now(); // Set RESET signal to HIGH for 1 µs GPIOC_PDOR |= 1; // 1 = 1<<0 delayMicroseconds(1); // DEBUG: Signal LOW that ADC and USB are done (takes ~40 µs with max cycles and sampling at 16 bit) // And set RESET signal to LOW //GPIOC_PDOR &= ~(1<<5 | 1); GPIOC_PDOR &= ~1; }
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