diff --git a/cores/arduino/wiring_analog.c b/cores/arduino/wiring_analog.c
new file mode 100644
index 0000000000000000000000000000000000000000..0b1f4c9b14acb864d1902516373c81abf3f06714
--- /dev/null
+++ b/cores/arduino/wiring_analog.c
@@ -0,0 +1,418 @@
+/*
+ Copyright (c) 2011 Arduino. All right reserved.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "Arduino.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// static int _readResolution = 10;
+// static int _writeResolution = 8;
+
+// void analogReadResolution(int res) {
+ // _readResolution = res;
+// }
+
+// void analogWriteResolution(int res) {
+ // _writeResolution = res;
+// }
+
+// static inline uint32_t mapResolution(uint32_t value, uint32_t from, uint32_t to) {
+ // if (from == to)
+ // return value;
+ // if (from > to)
+ // return value >> (from-to);
+ // else
+ // return value << (to-from);
+// }
+
+// eAnalogReference analog_reference = AR_DEFAULT;
+
+// void analogReference(eAnalogReference ulMode)
+// {
+ // analog_reference = ulMode;
+// }
+
+// uint32_t analogRead(uint32_t ulPin)
+// {
+ // uint32_t ulValue = 0;
+ // uint32_t ulChannel;
+
+ // if (ulPin < A0)
+ // ulPin += A0;
+
+ // ulChannel = g_APinDescription[ulPin].ulADCChannelNumber ;
+
+// #if defined __SAM3U4E__
+ // switch ( g_APinDescription[ulPin].ulAnalogChannel )
+ // {
+ // // Handling ADC 10 bits channels
+ // case ADC0 :
+ // case ADC1 :
+ // case ADC2 :
+ // case ADC3 :
+ // case ADC4 :
+ // case ADC5 :
+ // case ADC6 :
+ // case ADC7 :
+ // // Enable the corresponding channel
+ // adc_enable_channel( ADC, ulChannel );
+
+ // // Start the ADC
+ // adc_start( ADC );
+
+ // // Wait for end of conversion
+ // while ((adc_get_status(ADC) & ADC_SR_DRDY) != ADC_SR_DRDY)
+ // ;
+
+ // // Read the value
+ // ulValue = adc_get_latest_value(ADC);
+ // ulValue = mapResolution(ulValue, 10, _readResolution);
+
+ // // Disable the corresponding channel
+ // adc_disable_channel( ADC, ulChannel );
+
+ // // Stop the ADC
+ // // adc_stop( ADC ) ; // never do adc_stop() else we have to reconfigure the ADC each time
+ // break;
+
+ // // Handling ADC 12 bits channels
+ // case ADC8 :
+ // case ADC9 :
+ // case ADC10 :
+ // case ADC11 :
+ // case ADC12 :
+ // case ADC13 :
+ // case ADC14 :
+ // case ADC15 :
+ // // Enable the corresponding channel
+ // adc12b_enable_channel( ADC12B, ulChannel );
+
+ // // Start the ADC12B
+ // adc12b_start( ADC12B );
+
+ // // Wait for end of conversion
+ // while ((adc12b_get_status(ADC12B) & ADC12B_SR_DRDY) != ADC12B_SR_DRDY)
+ // ;
+
+ // // Read the value
+ // ulValue = adc12b_get_latest_value(ADC12B) >> 2;
+ // ulValue = mapResolution(ulValue, 12, _readResolution);
+
+ // // Stop the ADC12B
+ // // adc12_stop( ADC12B ) ; // never do adc12_stop() else we have to reconfigure the ADC12B each time
+
+ // // Disable the corresponding channel
+ // adc12b_disable_channel( ADC12B, ulChannel );
+ // break;
+
+ // // Compiler could yell because we don't handle DAC pins
+ // default :
+ // ulValue=0;
+ // break;
+ // }
+// #endif
+
+// #if defined __SAM3X8E__ || defined __SAM3X8H__
+ // static uint32_t latestSelectedChannel = -1;
+ // switch ( g_APinDescription[ulPin].ulAnalogChannel )
+ // {
+ // // Handling ADC 12 bits channels
+ // case ADC0 :
+ // case ADC1 :
+ // case ADC2 :
+ // case ADC3 :
+ // case ADC4 :
+ // case ADC5 :
+ // case ADC6 :
+ // case ADC7 :
+ // case ADC8 :
+ // case ADC9 :
+ // case ADC10 :
+ // case ADC11 :
+
+ // // Enable the corresponding channel
+ // if (ulChannel != latestSelectedChannel) {
+ // adc_enable_channel( ADC, ulChannel );
+ // if ( latestSelectedChannel != -1 )
+ // adc_disable_channel( ADC, latestSelectedChannel );
+ // latestSelectedChannel = ulChannel;
+ // }
+
+ // // Start the ADC
+ // adc_start( ADC );
+
+ // // Wait for end of conversion
+ // while ((adc_get_status(ADC) & ADC_ISR_DRDY) != ADC_ISR_DRDY)
+ // ;
+
+ // // Read the value
+ // ulValue = adc_get_latest_value(ADC);
+ // ulValue = mapResolution(ulValue, ADC_RESOLUTION, _readResolution);
+
+ // break;
+
+ // // Compiler could yell because we don't handle DAC pins
+ // default :
+ // ulValue=0;
+ // break;
+ // }
+// #endif
+
+ // return ulValue;
+// }
+
+
+// Right now, PWM output only works on the pins with
+// hardware support. These are defined in the appropriate
+// pins_*.c file. For the rest of the pins, we default
+// to digital output.
+
+void analogWrite(uint32_t ulPin, uint32_t ulValue) {
+
+ uint32_t attr = g_APinDescription[ulPin].ulPinAttribute;
+ uint32_t pwm_name = g_APinDescription[ulPin].ulTCChannel;
+ uint8_t isTC = 0;
+ uint8_t Channelx;
+ Tc* TCx;
+ Tcc* TCCx;
+
+ // if ((attr & PIN_ATTR_ANALOG) == PIN_ATTR_ANALOG) {
+ // EAnalogChannel channel = g_APinDescription[ulPin].ulADCChannelNumber;
+ // if (channel == DA0 || channel == DA1) {
+ // uint32_t chDACC = ((channel == DA0) ? 0 : 1);
+ // if (dacc_get_channel_status(DACC_INTERFACE) == 0) {
+ // /* Enable clock for DACC_INTERFACE */
+ // pmc_enable_periph_clk(DACC_INTERFACE_ID);
+
+ // /* Reset DACC registers */
+ // dacc_reset(DACC_INTERFACE);
+
+ // /* Half word transfer mode */
+ // dacc_set_transfer_mode(DACC_INTERFACE, 0);
+
+ // /* Power save:
+ // * sleep mode - 0 (disabled)
+ // * fast wakeup - 0 (disabled)
+ // */
+ // dacc_set_power_save(DACC_INTERFACE, 0, 0);
+ // /* Timing:
+ // * refresh - 0x08 (1024*8 dacc clocks)
+ // * max speed mode - 0 (disabled)
+ // * startup time - 0x10 (1024 dacc clocks)
+ // */
+ // dacc_set_timing(DACC_INTERFACE, 0x08, 0, 0x10);
+
+ // /* Set up analog current */
+ // dacc_set_analog_control(DACC_INTERFACE, DACC_ACR_IBCTLCH0(0x02) |
+ // DACC_ACR_IBCTLCH1(0x02) |
+ // DACC_ACR_IBCTLDACCORE(0x01));
+ // }
+
+ // /* Disable TAG and select output channel chDACC */
+ // dacc_set_channel_selection(DACC_INTERFACE, chDACC);
+
+ // if ((dacc_get_channel_status(DACC_INTERFACE) & (1 << chDACC)) == 0) {
+ // dacc_enable_channel(DACC_INTERFACE, chDACC);
+ // }
+
+ // // Write user value
+ // ulValue = mapResolution(ulValue, _writeResolution, DACC_RESOLUTION);
+ // dacc_write_conversion_data(DACC_INTERFACE, ulValue);
+ // while ((dacc_get_interrupt_status(DACC_INTERFACE) & DACC_ISR_EOC) == 0);
+ // return;
+ // }
+ // }
+
+ if ((attr & PIN_ATTR_PWM) == PIN_ATTR_PWM) {
+
+ // Set selected Pin as TC/TCC Waveform out (PMUX : E )
+ if(g_APinDescription[ulPin].ulPin <= 15)
+ PORT->Group[g_APinDescription[ulPin].ulPort].WRCONFIG.reg = (uint32_t)(PORT_WRCONFIG_WRPINCFG |PORT_WRCONFIG_WRPMUX| 1 << (g_APinDescription[ulPin].ulPin)|(PORT_WRCONFIG_PMUXEN)|(0x4 << PORT_WRCONFIG_PMUX_Pos) );
+ else
+ PORT->Group[g_APinDescription[ulPin].ulPort].WRCONFIG.reg = (uint32_t)(PORT_WRCONFIG_WRPINCFG | PORT_WRCONFIG_WRPMUX| PORT_WRCONFIG_HWSEL| 1 << (g_APinDescription[ulPin].ulPin - 16)|(PORT_WRCONFIG_PMUXEN)|(0x4 << PORT_WRCONFIG_PMUX_Pos) );
+
+ switch (g_APinDescription[ulPin].ulTCChannel)
+ {
+ case TC3_CH0 :
+ TCx = TC3;
+ Channelx = 0;
+ isTC = 1;
+ break;
+
+ case TC3_CH1:
+ TCx = TC3 ;
+ Channelx = 1;
+ isTC = 1;
+ break;
+
+ case TCC0_CH0 :
+ TCCx = TCC0;
+ Channelx = 0;
+ break;
+
+ case TCC0_CH1 :
+ TCCx = TCC0;
+ Channelx = 1;
+ break;
+
+ case TCC0_CH4 :
+ TCCx = TCC0;
+ //Channelx = 4;
+ Channelx = 0;
+ break;
+
+ case TCC0_CH5 :
+ TCCx = TCC0;
+ //Channelx = 5;
+ Channelx = 1;
+ break;
+
+ case TCC0_CH6 :
+ TCCx = TCC0;
+ //Channelx = 6;
+ Channelx = 2;
+ break;
+
+ case TCC0_CH7 :
+ TCCx = TCC0;
+ //Channelx = 7;
+ Channelx = 3;
+ break;
+
+ case TCC1_CH0 :
+ TCCx = TCC1;
+ Channelx = 0;
+ break;
+
+ case TCC1_CH1 :
+ TCCx = TCC1;
+ Channelx = 1;
+ break;
+
+ case TCC2_CH0 :
+ TCCx = TCC2;
+ Channelx = 0;
+ break;
+
+ case TCC2_CH1 :
+ TCCx = TCC2;
+ Channelx = 1;
+ break;
+ }
+
+ // --Set PORT
+
+ if (isTC)
+ {
+ // -- Enable clocks according to TCCx instance to use
+ switch ((uint32_t) TCx)
+ {
+ case (uint32_t) TC3 :
+ //Enable TCx Bus clock (Timer counter control clock)
+ PM->APBCMASK.reg |= PM_APBCMASK_TC3;
+ //Enable GCLK for TC3 (timer counter input clock)
+ GCLK->CLKCTRL.reg = (uint16_t) ((GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | ( 0x1B << GCLK_CLKCTRL_ID_Pos)));
+ break;
+
+ case (uint32_t) TC4 :
+ //Enable TCx Bus clock (Timer counter control clock)
+ PM->APBCMASK.reg |= PM_APBCMASK_TC4;
+ //Enable GCLK for TC4 (timer counter input clock)
+ GCLK->CLKCTRL.reg = (uint16_t) ((GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | ( 0x1C << GCLK_CLKCTRL_ID_Pos)));
+ break;
+
+ case (uint32_t) TC5 :
+ //Enable TCx Bus clock (Timer counter control clock)
+ PM->APBCMASK.reg |= PM_APBCMASK_TC5;
+ //Enable GCLK for TC5 (timer counter input clock)
+ GCLK->CLKCTRL.reg = (uint16_t) ((GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | ( 0x1C << GCLK_CLKCTRL_ID_Pos)));
+ break;
+
+ }
+
+ // -- Configure TC
+ //DISABLE TCx
+ TCx->COUNT8.CTRLA.reg &=~(TC_CTRLA_ENABLE);
+ //Set Timer counter Mode to 8 bits
+ TCx->COUNT8.CTRLA.reg |= TC_CTRLA_MODE_COUNT8;
+ //Set TCx as normal PWM
+ TCx->COUNT8.CTRLA.reg |= TC_CTRLA_WAVEGEN_NPWM;
+ //Set TCx in waveform mode Normal PWM
+ TCx->COUNT8.CC[Channelx].reg = (uint8_t) ulValue;
+ //Set PER to maximum counter value (resolution : 0xFF)
+ TCx->COUNT8.PER.reg = 0xFF;
+ // Enable TCx
+ TCx->COUNT8.CTRLA.reg |= TC_CTRLA_ENABLE;
+
+ } else {
+
+ // -- Enable clocks according to TCCx instance to use
+ switch ((uint32_t) TCCx)
+ {
+ case (uint32_t) TCC0 :
+ //Enable TCC0 Bus clock (Timer counter control clock)
+ PM->APBCMASK.reg |= PM_APBCMASK_TCC0;
+ //Enable GCLK for TCC0 (timer counter input clock)
+ GCLK->CLKCTRL.reg = (uint16_t) ((GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | ( 0x1A << GCLK_CLKCTRL_ID_Pos)));
+ break;
+
+ case (uint32_t) TCC1 :
+ //Enable TCC1 Bus clock (Timer counter control clock)
+ PM->APBCMASK.reg |= PM_APBCMASK_TCC1;
+ //Enable GCLK for TCC1 (timer counter input clock)
+ GCLK->CLKCTRL.reg = (uint16_t) ((GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | ( 0x1A << GCLK_CLKCTRL_ID_Pos)));
+ break;
+
+ case (uint32_t) TCC2 :
+ //Enable TCC2 Bus clock (Timer counter control clock)
+ PM->APBCMASK.reg |= PM_APBCMASK_TCC2;
+ //Enable GCLK for TCC2 (timer counter input clock)
+ GCLK->CLKCTRL.reg = (uint16_t) ((GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | ( 0x1B << GCLK_CLKCTRL_ID_Pos)));
+ break;
+ }
+
+ // -- Configure TCC
+
+ //DISABLE TCCx
+ TCCx->CTRLA.reg &=~(TCC_CTRLA_ENABLE);
+ //Set TCx as normal PWM
+ TCCx->WAVE.reg |= TCC_WAVE_WAVEGEN_NPWM;
+ //Set TCx in waveform mode Normal PWM
+ TCCx->CC[Channelx].reg = (uint32_t)ulValue;
+ //Set PER to maximum counter value (resolution : 0xFF)
+ TCCx->PER.reg = 0xFF;
+ //ENABLE TCCx
+ TCCx->CTRLA.reg |= TCC_CTRLA_ENABLE ;
+ }
+ return;
+ }
+
+ // -- Defaults to digital write
+ pinMode(ulPin, OUTPUT);
+ //ulValue = mapResolution(ulValue, _writeResolution, 8);
+ if (ulValue < 128)
+ digitalWrite(ulPin, LOW);
+ else
+ digitalWrite(ulPin, HIGH);
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/cores/arduino/wiring_analog.c.disabled b/cores/arduino/wiring_analog.c.disabled
deleted file mode 100644
index bdc7de8788a32866ba84d3e5163ee9bd33951d43..0000000000000000000000000000000000000000
--- a/cores/arduino/wiring_analog.c.disabled
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- Copyright (c) 2011 Arduino. All right reserved.
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "Arduino.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-static int _readResolution = 10;
-static int _writeResolution = 8;
-
-void analogReadResolution(int res) {
- _readResolution = res;
-}
-
-void analogWriteResolution(int res) {
- _writeResolution = res;
-}
-
-static inline uint32_t mapResolution(uint32_t value, uint32_t from, uint32_t to) {
- if (from == to)
- return value;
- if (from > to)
- return value >> (from-to);
- else
- return value << (to-from);
-}
-
-eAnalogReference analog_reference = AR_DEFAULT;
-
-void analogReference(eAnalogReference ulMode)
-{
- analog_reference = ulMode;
-}
-
-uint32_t analogRead(uint32_t ulPin)
-{
- uint32_t ulValue = 0;
- uint32_t ulChannel;
-
- if (ulPin < A0)
- ulPin += A0;
-
- ulChannel = g_APinDescription[ulPin].ulADCChannelNumber ;
-
-#if defined __SAM3X8E__ || defined __SAM3X8H__
- static uint32_t latestSelectedChannel = -1;
- switch ( g_APinDescription[ulPin].ulAnalogChannel )
- {
- // Handling ADC 12 bits channels
- case ADC0 :
- case ADC1 :
- case ADC2 :
- case ADC3 :
- case ADC4 :
- case ADC5 :
- case ADC6 :
- case ADC7 :
- case ADC8 :
- case ADC9 :
- case ADC10 :
- case ADC11 :
-
- // Enable the corresponding channel
- if (ulChannel != latestSelectedChannel) {
- adc_enable_channel( ADC, ulChannel );
- if ( latestSelectedChannel != -1 )
- adc_disable_channel( ADC, latestSelectedChannel );
- latestSelectedChannel = ulChannel;
- }
-
- // Start the ADC
- adc_start( ADC );
-
- // Wait for end of conversion
- while ((adc_get_status(ADC) & ADC_ISR_DRDY) != ADC_ISR_DRDY)
- ;
-
- // Read the value
- ulValue = adc_get_latest_value(ADC);
- ulValue = mapResolution(ulValue, ADC_RESOLUTION, _readResolution);
-
- break;
-
- // Compiler could yell because we don't handle DAC pins
- default :
- ulValue=0;
- break;
- }
-#endif
-
- return ulValue;
-}
-
-static void TC_SetCMR_ChannelA(Tc *tc, uint32_t chan, uint32_t v)
-{
- tc->TC_CHANNEL[chan].TC_CMR = (tc->TC_CHANNEL[chan].TC_CMR & 0xFFF0FFFF) | v;
-}
-
-static void TC_SetCMR_ChannelB(Tc *tc, uint32_t chan, uint32_t v)
-{
- tc->TC_CHANNEL[chan].TC_CMR = (tc->TC_CHANNEL[chan].TC_CMR & 0xF0FFFFFF) | v;
-}
-
-static uint8_t PWMEnabled = 0;
-static uint8_t pinEnabled[PINS_COUNT];
-static uint8_t TCChanEnabled[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
-
-void analogOutputInit(void) {
- uint8_t i;
- for (i=0; i<PINS_COUNT; i++)
- pinEnabled[i] = 0;
-}
-
-// Right now, PWM output only works on the pins with
-// hardware support. These are defined in the appropriate
-// pins_*.c file. For the rest of the pins, we default
-// to digital output.
-void analogWrite(uint32_t ulPin, uint32_t ulValue) {
- uint32_t attr = g_APinDescription[ulPin].ulPinAttribute;
-
- if ((attr & PIN_ATTR_ANALOG) == PIN_ATTR_ANALOG) {
- EAnalogChannel channel = g_APinDescription[ulPin].ulADCChannelNumber;
- if (channel == DA0 || channel == DA1) {
- uint32_t chDACC = ((channel == DA0) ? 0 : 1);
- if (dacc_get_channel_status(DACC_INTERFACE) == 0) {
- /* Enable clock for DACC_INTERFACE */
- pmc_enable_periph_clk(DACC_INTERFACE_ID);
-
- /* Reset DACC registers */
- dacc_reset(DACC_INTERFACE);
-
- /* Half word transfer mode */
- dacc_set_transfer_mode(DACC_INTERFACE, 0);
-
- /* Power save:
- * sleep mode - 0 (disabled)
- * fast wakeup - 0 (disabled)
- */
- dacc_set_power_save(DACC_INTERFACE, 0, 0);
- /* Timing:
- * refresh - 0x08 (1024*8 dacc clocks)
- * max speed mode - 0 (disabled)
- * startup time - 0x10 (1024 dacc clocks)
- */
- dacc_set_timing(DACC_INTERFACE, 0x08, 0, 0x10);
-
- /* Set up analog current */
- dacc_set_analog_control(DACC_INTERFACE, DACC_ACR_IBCTLCH0(0x02) |
- DACC_ACR_IBCTLCH1(0x02) |
- DACC_ACR_IBCTLDACCORE(0x01));
- }
-
- /* Disable TAG and select output channel chDACC */
- dacc_set_channel_selection(DACC_INTERFACE, chDACC);
-
- if ((dacc_get_channel_status(DACC_INTERFACE) & (1 << chDACC)) == 0) {
- dacc_enable_channel(DACC_INTERFACE, chDACC);
- }
-
- // Write user value
- ulValue = mapResolution(ulValue, _writeResolution, DACC_RESOLUTION);
- dacc_write_conversion_data(DACC_INTERFACE, ulValue);
- while ((dacc_get_interrupt_status(DACC_INTERFACE) & DACC_ISR_EOC) == 0);
- return;
- }
- }
-
- if ((attr & PIN_ATTR_PWM) == PIN_ATTR_PWM) {
- ulValue = mapResolution(ulValue, _writeResolution, PWM_RESOLUTION);
-
- if (!PWMEnabled) {
- // PWM Startup code
- pmc_enable_periph_clk(PWM_INTERFACE_ID);
- PWMC_ConfigureClocks(PWM_FREQUENCY * PWM_MAX_DUTY_CYCLE, 0, VARIANT_MCK);
- PWMEnabled = 1;
- }
-
- uint32_t chan = g_APinDescription[ulPin].ulPWMChannel;
- if (!pinEnabled[ulPin]) {
- // Setup PWM for this pin
- PIO_Configure(g_APinDescription[ulPin].pPort,
- g_APinDescription[ulPin].ulPinType,
- g_APinDescription[ulPin].ulPin,
- g_APinDescription[ulPin].ulPinConfiguration);
- PWMC_ConfigureChannel(PWM_INTERFACE, chan, PWM_CMR_CPRE_CLKA, 0, 0);
- PWMC_SetPeriod(PWM_INTERFACE, chan, PWM_MAX_DUTY_CYCLE);
- PWMC_SetDutyCycle(PWM_INTERFACE, chan, ulValue);
- PWMC_EnableChannel(PWM_INTERFACE, chan);
- pinEnabled[ulPin] = 1;
- }
-
- PWMC_SetDutyCycle(PWM_INTERFACE, chan, ulValue);
- return;
- }
-
- if ((attr & PIN_ATTR_TIMER) == PIN_ATTR_TIMER) {
- // We use MCLK/2 as clock.
- const uint32_t TC = VARIANT_MCK / 2 / TC_FREQUENCY;
-
- // Map value to Timer ranges 0..255 => 0..TC
- ulValue = mapResolution(ulValue, _writeResolution, TC_RESOLUTION);
- ulValue = ulValue * TC;
- ulValue = ulValue / TC_MAX_DUTY_CYCLE;
-
- // Setup Timer for this pin
- ETCChannel channel = g_APinDescription[ulPin].ulTCChannel;
- static const uint32_t channelToChNo[] = { 0, 0, 1, 1, 2, 2, 0, 0, 1, 1, 2, 2, 0, 0, 1, 1, 2, 2 };
- static const uint32_t channelToAB[] = { 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 };
- static const Tc *channelToTC[] = {
- TC0, TC0, TC0, TC0, TC0, TC0,
- TC1, TC1, TC1, TC1, TC1, TC1,
- TC2, TC2, TC2, TC2, TC2, TC2 };
- static const uint32_t channelToId[] = { 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8 };
- uint32_t chNo = channelToChNo[channel];
- uint32_t chA = channelToAB[channel];
- Tc *chTC = channelToTC[channel];
- uint32_t interfaceID = channelToId[channel];
-
- if (!TCChanEnabled[interfaceID]) {
- pmc_enable_periph_clk(TC_INTERFACE_ID + interfaceID);
- TC_Configure(chTC, chNo,
- TC_CMR_TCCLKS_TIMER_CLOCK1 |
- TC_CMR_WAVE | // Waveform mode
- TC_CMR_WAVSEL_UP_RC | // Counter running up and reset when equals to RC
- TC_CMR_EEVT_XC0 | // Set external events from XC0 (this setup TIOB as output)
- TC_CMR_ACPA_CLEAR | TC_CMR_ACPC_CLEAR |
- TC_CMR_BCPB_CLEAR | TC_CMR_BCPC_CLEAR);
- TC_SetRC(chTC, chNo, TC);
- }
- if (ulValue == 0) {
- if (chA)
- TC_SetCMR_ChannelA(chTC, chNo, TC_CMR_ACPA_CLEAR | TC_CMR_ACPC_CLEAR);
- else
- TC_SetCMR_ChannelB(chTC, chNo, TC_CMR_BCPB_CLEAR | TC_CMR_BCPC_CLEAR);
- } else {
- if (chA) {
- TC_SetRA(chTC, chNo, ulValue);
- TC_SetCMR_ChannelA(chTC, chNo, TC_CMR_ACPA_CLEAR | TC_CMR_ACPC_SET);
- } else {
- TC_SetRB(chTC, chNo, ulValue);
- TC_SetCMR_ChannelB(chTC, chNo, TC_CMR_BCPB_CLEAR | TC_CMR_BCPC_SET);
- }
- }
- if (!pinEnabled[ulPin]) {
- PIO_Configure(g_APinDescription[ulPin].pPort,
- g_APinDescription[ulPin].ulPinType,
- g_APinDescription[ulPin].ulPin,
- g_APinDescription[ulPin].ulPinConfiguration);
- pinEnabled[ulPin] = 1;
- }
- if (!TCChanEnabled[interfaceID]) {
- TC_Start(chTC, chNo);
- TCChanEnabled[interfaceID] = 1;
- }
- return;
- }
-
- // Defaults to digital write
- pinMode(ulPin, OUTPUT);
- ulValue = mapResolution(ulValue, _writeResolution, 8);
- if (ulValue < 128)
- digitalWrite(ulPin, LOW);
- else
- digitalWrite(ulPin, HIGH);
-}
-
-#ifdef __cplusplus
-}
-#endif