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Use analog pin to channel tables (faster)

main
PaulStoffregen 9 年之前
父節點
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共有 2 個文件被更改，包括 103 次插入 和 147 次删除
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  1. +43
    -100
      teensy3/analog.c
  2. +60
    -47
      teensy3/pins_arduino.h

+ 43
- 100
teensy3/analog.c 查看文件

@@ -358,48 +358,51 @@ void analogReadAveraging(unsigned int num)
// The SC1A register is used for both software and hardware trigger modes of operation.

#if defined(__MK20DX128__)
static const uint8_t channel2sc1a[] = {
5, 14, 8, 9, 13, 12, 6, 7, 15, 4,
0, 19, 3, 21, 26, 22, 23
static const uint8_t pin2sc1a[] = {
5, 14, 8, 9, 13, 12, 6, 7, 15, 4, 0, 19, 3, 21, // 0-13 -> A0-A13
5, 14, 8, 9, 13, 12, 6, 7, 15, 4, // 14-23 are A0-A9
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, // 24-33 are digital only
0, 19, 3, 21, // 34-37 are A10-A13
26, // 38 is temp sensor
22, // 39 is vref
23 // 40 is unused analog pin
};
#elif defined(__MK20DX256__)
static const uint8_t channel2sc1a[] = {
5, 14, 8, 9, 13, 12, 6, 7, 15, 4,
0, 19, 3, 19+128, 26, 18+128, 23,
5+192, 5+128, 4+128, 6+128, 7+128, 4+192
// +64 -> use muxA
// +128 -> use ADC1
// A15 26 E1 ADC1_SE5a 5+64
// A16 27 C9 ADC1_SE5b 5
// A17 28 C8 ADC1_SE4b 4
// A18 29 C10 ADC1_SE6b 6
// A19 30 C11 ADC1_SE7b 7
// A20 31 E0 ADC1_SE4a 4+64
static const uint8_t pin2sc1a[] = {
5, 14, 8, 9, 13, 12, 6, 7, 15, 4, 0, 19, 3, 19+128, // 0-13 -> A0-A13
5, 14, 8, 9, 13, 12, 6, 7, 15, 4, // 14-23 are A0-A9
255, 255, // 24-25 are digital only
5+192, 5+128, 4+128, 6+128, 7+128, 4+192, // 26-31 are A15-A20
255, 255, // 32-33 are digital only
0, 19, 3, 19+128, // 34-37 are A10-A13
26, // 38 is temp sensor,
18+128, // 39 is vref
23 // 40 is A14
};
#elif defined(__MKL26Z64__)
static const uint8_t channel2sc1a[] = {
5, 14, 8, 9, 13, 12, 6, 7, 15, 11,
0, 4+64, 23, 26, 27
static const uint8_t pin2sc1a[] = {
5, 14, 8, 9, 13, 12, 6, 7, 15, 11, 0, 4+64, 23, // 0-12 -> A0-A12
255, // 13 is digital only (no A13 alias)
5, 14, 8, 9, 13, 12, 6, 7, 15, 11, 0, 4+64, 23, // 14-26 are A0-A12
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, // 27-37 unused
26, // 38=temperature
27 // 39=bandgap ref (PMC_REGSC |= PMC_REGSC_BGBE)
};
#elif defined(__MK64FX512__) || defined(__MK66FX1M0__)
static const uint8_t channel2sc1a[] = {
5, 14, 8, 9, 13, 12, 6, 7, 15, 4, // A0-A9
3, 19+128, // A10-A11
// A10 ADC1_DP0/ADC0_DP3
// A11 ADC1_DM0/ADC0_DM3
14+128, 15+128, 17, 18, 4+128, 5+128, 6+128, 7+128, 17+128, // A12-A20
// A12 PTB10 ADC1_SE14
// A13 PTB11 ADC1_SE15
// A14 PTE24 ADC0_SE17
// A15 PTE25 ADC0_SE18
// A16 PTC8 ADC1_SE4b
// A17 PTC9 ADC1_SE5b
// A18 PTC10 ADC1_SE6b
// A19 PTC11 ADC1_SE7b
// A20 PTA17 ADC1_SE17
23, 23+128, 26, 18+128, 10+128, 11+128 // A21-A22, temp sensor, vref A23, A24
// A21 DAC0 ADC0_SE23
// A22 DAC1 ADC1_SE23
static const uint8_t pin2sc1a[] = {
5, 14, 8, 9, 13, 12, 6, 7, 15, 4, 3, 19+128, 14+128, 15+128, // 0-13 -> A0-A13
5, 14, 8, 9, 13, 12, 6, 7, 15, 4, // 14-23 are A0-A9
255, 255, 255, 255, 255, 255, 255, // 24-30 are digital only
14+128, 15+128, 17, 18, 4+128, 5+128, 6+128, 7+128, 17+128, // 31-39 are A12-A20
255, 255, 255, 255, 255, 255, 255, 255, 255, // 40-48 are digital only
10+128, 11+128, // 49-50 are A23-A24
255, 255, 255, 255, 255, 255, 255, // 51-57 are digital only
255, 255, 255, 255, 255, 255, // 58-63 (sd card pins) are digital only
3, 19+128, // 64-65 are A10-A11
23, 23+128,// 66-68 are A21-A22 (DAC pins)
1, 1+128, // 69-70 are A25-A26 (unused USB host port on Teensy 3.5)
26, // 71 is Temperature Sensor
18+128 // 72 is Vref
};
#endif

@@ -414,76 +417,16 @@ static volatile uint8_t analogReadBusyADC1 = 0;
int analogRead(uint8_t pin)
{
int result;
uint8_t index, channel;
uint8_t channel;

//serial_phex(pin);
//serial_print(" ");

#if defined(__MK20DX128__)
if (pin <= 13) {
index = pin; // 0-13 refer to A0-A13
} else if (pin <= 23) {
index = pin - 14; // 14-23 are A0-A9
} else if (pin >= 34 && pin <= 40) {
index = pin - 24; // 34-37 are A10-A13, 38 is temp sensor,
// 39 is vref, 40 is unused analog pin
} else {
return 0;
}
#elif defined(__MK20DX256__)
if (pin <= 13) {
index = pin; // 0-13 refer to A0-A13
} else if (pin <= 23) {
index = pin - 14; // 14-23 are A0-A9
} else if (pin >= 26 && pin <= 31) {
index = pin - 9; // 26-31 are A15-A20
} else if (pin >= 34 && pin <= 40) {
index = pin - 24; // 34-37 are A10-A13, 38 is temp sensor,
// 39 is vref, 40 is A14
} else {
return 0;
}
#elif defined(__MK64FX512__) || defined(__MK66FX1M0__)
if (pin <= 13) {
index = pin; // 0-13 refer to A0-A13
} else if (pin <= 23) {
index = pin - 14; // 14-23 are A0-A9
} else if (pin >= 31 && pin <= 39) {
index = pin - 19; // 31-39 are A12-A20
} else if (pin >= 40 && pin <= 41) {
index = pin - 30; // 40-41 are A10-A11
} else if (pin >= 42 && pin <= 45) {
index = pin - 21; // 42-43 are A21-A22
} else if (pin >= 49 && pin <= 50) {
index = pin - 24; // 49 and 50 are A23-A24
} else {
return 0;
}
#elif defined(__MKL26Z64__)
if (pin <= 12) {
index = pin; // 0-12 refer to A0-A12
} else if (pin >= 14 && pin <= 26) {
index = pin - 14; // 14-26 are A0-A12
} else if (pin >= 38 && pin <= 39) {
index = pin - 25; // 38=temperature
// 39=bandgap ref (PMC_REGSC |= PMC_REGSC_BGBE)
} else {
return 0;
}

#endif

//serial_phex(index);
//serial_print(" ");

channel = channel2sc1a[index];
//serial_phex(channel);
//serial_print(" ");
if (pin >= sizeof(pin2sc1a)) return 0;
channel = pin2sc1a[pin];
if (channel == 255) return 0;

//serial_print("analogRead");
//return 0;
if (calibrating) wait_for_cal();
//pin = 5; // PTD1/SE5b, pin 14, analog 0

#ifdef HAS_KINETIS_ADC1
if (channel & 0x80) goto beginADC1;

+ 60
- 47
teensy3/pins_arduino.h 查看文件

@@ -44,26 +44,26 @@
#define PIN_A7 (21)
#define PIN_A8 (22)
#define PIN_A9 (23)
const static uint8_t A0 = 14;
const static uint8_t A1 = 15;
const static uint8_t A2 = 16;
const static uint8_t A3 = 17;
const static uint8_t A4 = 18;
const static uint8_t A5 = 19;
const static uint8_t A6 = 20;
const static uint8_t A7 = 21;
const static uint8_t A8 = 22;
const static uint8_t A9 = 23;
const static uint8_t A0 = PIN_A0;
const static uint8_t A1 = PIN_A1;
const static uint8_t A2 = PIN_A2;
const static uint8_t A3 = PIN_A3;
const static uint8_t A4 = PIN_A4;
const static uint8_t A5 = PIN_A5;
const static uint8_t A6 = PIN_A6;
const static uint8_t A7 = PIN_A7;
const static uint8_t A8 = PIN_A8;
const static uint8_t A9 = PIN_A9;

#if defined(__MK20DX128__)
#define PIN_A10 (34)
#define PIN_A11 (35)
#define PIN_A12 (36)
#define PIN_A13 (37)
const static uint8_t A10 = 34;
const static uint8_t A11 = 35;
const static uint8_t A12 = 36;
const static uint8_t A13 = 37;
const static uint8_t A10 = PIN_A10;
const static uint8_t A11 = PIN_A11;
const static uint8_t A12 = PIN_A12;
const static uint8_t A13 = PIN_A13;

#elif defined(__MK20DX256__)
#define PIN_A10 (34)
@@ -77,29 +77,29 @@ const static uint8_t A13 = 37;
#define PIN_A18 (29)
#define PIN_A19 (30)
#define PIN_A20 (31)
const static uint8_t A10 = 34;
const static uint8_t A11 = 35;
const static uint8_t A12 = 36;
const static uint8_t A13 = 37;
const static uint8_t A14 = 40;
const static uint8_t A15 = 26;
const static uint8_t A16 = 27;
const static uint8_t A17 = 28;
const static uint8_t A18 = 29;
const static uint8_t A19 = 30;
const static uint8_t A20 = 31;
const static uint8_t A10 = PIN_A10;
const static uint8_t A11 = PIN_A11;
const static uint8_t A12 = PIN_A12;
const static uint8_t A13 = PIN_A13;
const static uint8_t A14 = PIN_A14;
const static uint8_t A15 = PIN_A15;
const static uint8_t A16 = PIN_A16;
const static uint8_t A17 = PIN_A17;
const static uint8_t A18 = PIN_A18;
const static uint8_t A19 = PIN_A19;
const static uint8_t A20 = PIN_A20;

#elif defined(__MKL26Z64__)
#define PIN_A10 (24)
#define PIN_A11 (25)
#define PIN_A12 (26)
const static uint8_t A10 = 24;
const static uint8_t A11 = 25;
const static uint8_t A12 = 26;
const static uint8_t A10 = PIN_A10;
const static uint8_t A11 = PIN_A11;
const static uint8_t A12 = PIN_A12;

#elif defined(__MK64FX512__) || defined(__MK66FX1M0__)
#define PIN_A10 (40)
#define PIN_A11 (41)
#define PIN_A10 (64)
#define PIN_A11 (65)
#define PIN_A12 (31)
#define PIN_A13 (32)
#define PIN_A14 (33)
@@ -109,25 +109,29 @@ const static uint8_t A12 = 26;
#define PIN_A18 (37)
#define PIN_A19 (38)
#define PIN_A20 (39)
#define PIN_A21 (42)
#define PIN_A22 (43)
#define PIN_A21 (66)
#define PIN_A22 (67)
#define PIN_A23 (49)
#define PIN_A24 (50)
const static uint8_t A10 = 40;
const static uint8_t A11 = 41;
const static uint8_t A12 = 31;
const static uint8_t A13 = 32;
const static uint8_t A14 = 33;
const static uint8_t A15 = 34;
const static uint8_t A16 = 35;
const static uint8_t A17 = 36;
const static uint8_t A18 = 37;
const static uint8_t A19 = 38;
const static uint8_t A20 = 39;
const static uint8_t A21 = 42;
const static uint8_t A22 = 43;
const static uint8_t A23 = 49;
const static uint8_t A24 = 50;
#define PIN_A25 (68)
#define PIN_A26 (69)
const static uint8_t A10 = PIN_A10;
const static uint8_t A11 = PIN_A11;
const static uint8_t A12 = PIN_A12;
const static uint8_t A13 = PIN_A13;
const static uint8_t A14 = PIN_A14;
const static uint8_t A15 = PIN_A15;
const static uint8_t A16 = PIN_A16;
const static uint8_t A17 = PIN_A17;
const static uint8_t A18 = PIN_A18;
const static uint8_t A19 = PIN_A19;
const static uint8_t A20 = PIN_A20;
const static uint8_t A21 = PIN_A21;
const static uint8_t A22 = PIN_A22;
const static uint8_t A23 = PIN_A23;
const static uint8_t A24 = PIN_A24;
const static uint8_t A25 = PIN_A25;
const static uint8_t A26 = PIN_A26;
#endif

#define LED_BUILTIN (13)
@@ -170,6 +174,7 @@ const static uint8_t SCL = 19;
#define digitalPinHasPWM(p) ((p) == 3 || (p) == 4 || (p) == 6 || (p) == 9 || (p) == 10 || (p) == 16 || (p) == 17 || (p) == 20 || (p) == 22 || (p) == 23)
#define digitalPinToInterrupt(p) ((((p) >= 2 && (p) <= 15) || ((p) >= 20 && (p) <= 23)) ? (p) : -1)
#elif defined(__MK64FX512__) || defined(__MK66FX1M0__)
// TODO analogInputToDigitalPin needs update...
#define analogInputToDigitalPin(p) (((p) <= 9) ? (p) + 14 : (((p) >= 12 && (p) <= 20) ? (p) + 19 : -1))
#define digitalPinHasPWM(p) (((p) >= 2 && (p) <= 10) || (p) == 14 || ((p) >= 20 && (p) <= 23) || (p) == 29 || (p) == 30 || ((p) >= 35 && (p) <= 38))
#define digitalPinToInterrupt(p) ((p) < NUM_DIGITAL_PINS ? (p) : -1)
@@ -264,6 +269,14 @@ static inline uint8_t digitalPinToTimer(uint8_t pin)
#define SERIAL_PORT_HARDWARE_OPEN Serial1
#define SERIAL_PORT_HARDWARE_OPEN1 Serial2
#define SERIAL_PORT_HARDWARE_OPEN2 Serial3
#if defined(__MK64FX512__) || defined(__MK66FX1M0__)
#define SERIAL_PORT_HARDWARE3 Serial4
#define SERIAL_PORT_HARDWARE4 Serial5
#define SERIAL_PORT_HARDWARE5 Serial6
#define SERIAL_PORT_HARDWARE_OPEN3 Serial4
#define SERIAL_PORT_HARDWARE_OPEN4 Serial5
#define SERIAL_PORT_HARDWARE_OPEN5 Serial6
#endif

#define SerialUSB Serial


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