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micropython/ports/mimxrt/modmachine.h

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mimxrt: Add the Timer class to the machine module. It supports three hardware timer channels based on the PIT timers of the MIMXRT MCU. The timer id's are 0, 1 and 2. On soft reboot all active timers will be stopped via finalisers.
4 years ago
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 Damien P. George
* Copyright (c) 2021 Robert Hammelrath
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_MIMXRT_MODMACHINE_H
#define MICROPY_INCLUDED_MIMXRT_MODMACHINE_H
#include "py/obj.h"
mimxrt/machine_adc: Add the ADC class to the machine module. This adds the machine.ADC class with the read_u16() method. make-pins.py and supporting files are updated to generate ADC information.
4 years ago
extern const mp_obj_type_t machine_adc_type;
mimxrt/machine_i2c: Add hardware-based machine.I2C to machine module. It uses non-blocking transfer of data. Advantage over SoftI2C: - Higher data rate up to ~3 MHZ. - Full protocol support.
3 years ago
extern const mp_obj_type_t machine_i2c_type;
mixmrt/machine_i2s: Add I2S protocol support. This commit adds support for machine.I2S on the mimxrt port. The I2S API is consistent with the existing stm32, esp32, and rp2 implementations. I2S features: - controller transmit and controller receive - 16-bit and 32-bit sample sizes - mono and stereo formats - sampling frequencies from 8kHz to 48kHz - 3 modes of operation: - blocking - non-blocking with callback - uasyncio - configurable internal buffer - optional MCK Tested with the following development boards: - MIMXRT1010_EVK, MIMXRT1015_EVK, MIMXRT1020_EVK, MIMXRT1050_EVK - Teensy 4.0, Teensy 4.1 - Olimex RT1010 - Seeed ARCH MIX Tested with the following I2S hardware peripherals: - UDA1334 - GY-SPH0645LM4H - WM8960 codec on board the MIMXRT boards and separate breakout board - INMP441 - PCM5102 - SGTL5000 on the Teensy audio shield Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
3 years ago
extern const mp_obj_type_t machine_i2s_type;
mimxrt: Support PWM using the FLEXPWM and QTMR modules. Frequency range 15Hz/18Hz to > 1 MHz, with decreasing resolution of the duty cycle. The basic API is supported as documentated, except that keyword parameters are accepted for both the instatiaton and the PWM.init() call. Extensions: support PWM for channel pairs. Channel pairs are declared by supplying 2-element tuples for the pins. The two channels of a pair must be the A/B channel of a FLEXPWM module. These form than a complementary pair. Additional supported keyword arguments: - center=value Defines the center position of a pulse within the pulse cycle. The align keyword is actually shortcut for center. - sync=True|False: If set to True, the channels will be synchronized to a submodule 0 channel, which has already to be enabled. - align=PWM.MIDDLE | PMW.BEGIN | PWM.END. It defines, whether synchronized channels are Center-Aligned or Edge-aligned. The channels must be either complementary a channel pair or a group of synchronized channels. It may as well be applied to a single channel, but withiout any benefit. - invert= 0..3. Controls ouput inversion of the pins. Bit 0 controls the first pin, bit 1 the second. - deadtime=time_ns time of complementary channels for delaying the rising slope. - xor=0|1|2 xor causes the output of channel A and B to be xored. If applied to a X channel, it shows the value oif A ^ B. If applied to an A or B channel, both channel show the xored signal for xor=1. For xor=2, the xored signal is split between channels A and B. See also the Reference Manual, chapter about double pulses. The behavior of xor=2 can also be achieved using the center method for locating a pulse within a clock period. The output is enabled for board pins only. CPU pins may still be used for FLEXPWM, e.g. as sync source, but the signal will not be routed to the output. That applies only to FLEXPWM pins. The use of QTMR pins which are not board pins will be rejected. As part of this commit, the _WFE() statement is removed from ticks_delay_us64() to prevent PWM glitching during calls to sleep().
3 years ago
extern const mp_obj_type_t machine_pwm_type;
mimxrt/modmachine: Implement machine.WDT() and machine.reset_cause(). The API follows that of rp2, stm32, esp32, and the docs. wdt=machine.WDT(0, timeout) Timeout is given in ms. The valid range is 500 to 128000 (128 seconds) with 500 ms granularity. Values outside of that range will be silently aligned. wdt.feed() Resets the watchdog timer (feeding). wdt.timeout_ms(value) Sets a new timeout and feeds the watchdog. This is a new, preliminary method which is not yet documented. reset_cause = machine.reset_cause() Values returned: 1 Power On reset 3 Watchdog reset 5 Software reset: state after calling machine.reset() More elaborate API functions are supported by the MCU, like an interrupt called a certain time after feeding. But for port cosistency that is not implemented.
3 years ago
extern const mp_obj_type_t machine_rtc_type;
extern const mp_obj_type_t machine_sdcard_type;
mimxrt/machine_spi: Add the SPI class to the machine module. This class supports SPI bus controller mode, with blocking transfers. SPI device numbers start at 0, to comply with the pinout of the Teensy boards. With the configured clock frequency the fastest baud rate is 33MHz. For messages longer 16 bytes DMA is used. The class uses the existing framework with extmod/machine_spi.c. Extended driver options: - drive=n with n being between 1 and 6 or PIN.POWER_1 to PIN.POWER_6. Since the pins used by the SPI are fixed, no Pin settings can be made. Thus the drive option is added allowing to control ringing and crosstalk on the connection. - gap_ns=nnnnn is the time between sent data items in a frame given in ns. Default is 2 clock cycles.
3 years ago
extern const mp_obj_type_t machine_spi_type;
mimxrt/modmachine: Implement machine.WDT() and machine.reset_cause(). The API follows that of rp2, stm32, esp32, and the docs. wdt=machine.WDT(0, timeout) Timeout is given in ms. The valid range is 500 to 128000 (128 seconds) with 500 ms granularity. Values outside of that range will be silently aligned. wdt.feed() Resets the watchdog timer (feeding). wdt.timeout_ms(value) Sets a new timeout and feeds the watchdog. This is a new, preliminary method which is not yet documented. reset_cause = machine.reset_cause() Values returned: 1 Power On reset 3 Watchdog reset 5 Software reset: state after calling machine.reset() More elaborate API functions are supported by the MCU, like an interrupt called a certain time after feeding. But for port cosistency that is not implemented.
3 years ago
extern const mp_obj_type_t machine_timer_type;
mimxrt/machine_uart: Add the UART class to the machine module. The implementation uses the LPUARTx devices. Up to 8 UARTs can be used, given that the pins are accessible. E.g. 8 on Teensy 4.1, 5 on MIMXRT1020_EVK. For Tennsy 4.0 and 4.1 the UART numbers are as printed on the pinout 1..N. The MIMXRT10xx-EVK boards have only one UART named, which gets the number 1. All other UART are assigned to different Pins: MIMXRT1010-EVK: D0/D1 UART 1 D6/D7 UART 2 A0/D4 UART 3 MIMXRT1020-EVK: D0/D1 UART 1 D6/D9 UART 2 D10/D12 UART 3 D14/D15 UART 4 A0/A1 UART 5 MIMXRT1050-EVK, MIMXRT1060-EVK, MIMXRT1064-EVK: D0/D1 UART 1 D7/D6 UART 2 D8/D9 UART 3 A1/A0 UART 4
3 years ago
extern const mp_obj_type_t machine_uart_type;
mimxrt/modmachine: Implement machine.WDT() and machine.reset_cause(). The API follows that of rp2, stm32, esp32, and the docs. wdt=machine.WDT(0, timeout) Timeout is given in ms. The valid range is 500 to 128000 (128 seconds) with 500 ms granularity. Values outside of that range will be silently aligned. wdt.feed() Resets the watchdog timer (feeding). wdt.timeout_ms(value) Sets a new timeout and feeds the watchdog. This is a new, preliminary method which is not yet documented. reset_cause = machine.reset_cause() Values returned: 1 Power On reset 3 Watchdog reset 5 Software reset: state after calling machine.reset() More elaborate API functions are supported by the MCU, like an interrupt called a certain time after feeding. But for port cosistency that is not implemented.
3 years ago
extern const mp_obj_type_t machine_wdt_type;
mimxrt: Add the Timer class to the machine module. It supports three hardware timer channels based on the PIT timers of the MIMXRT MCU. The timer id's are 0, 1 and 2. On soft reboot all active timers will be stopped via finalisers.
4 years ago
mimxrt/machine_adc: Add the ADC class to the machine module. This adds the machine.ADC class with the read_u16() method. make-pins.py and supporting files are updated to generate ADC information.
4 years ago
void machine_adc_init(void);
mimxrt/machine_pin: Implement pin.irq() functionality.
3 years ago
void machine_pin_irq_deinit(void);
mimxrt: Support PWM using the FLEXPWM and QTMR modules. Frequency range 15Hz/18Hz to > 1 MHz, with decreasing resolution of the duty cycle. The basic API is supported as documentated, except that keyword parameters are accepted for both the instatiaton and the PWM.init() call. Extensions: support PWM for channel pairs. Channel pairs are declared by supplying 2-element tuples for the pins. The two channels of a pair must be the A/B channel of a FLEXPWM module. These form than a complementary pair. Additional supported keyword arguments: - center=value Defines the center position of a pulse within the pulse cycle. The align keyword is actually shortcut for center. - sync=True|False: If set to True, the channels will be synchronized to a submodule 0 channel, which has already to be enabled. - align=PWM.MIDDLE | PMW.BEGIN | PWM.END. It defines, whether synchronized channels are Center-Aligned or Edge-aligned. The channels must be either complementary a channel pair or a group of synchronized channels. It may as well be applied to a single channel, but withiout any benefit. - invert= 0..3. Controls ouput inversion of the pins. Bit 0 controls the first pin, bit 1 the second. - deadtime=time_ns time of complementary channels for delaying the rising slope. - xor=0|1|2 xor causes the output of channel A and B to be xored. If applied to a X channel, it shows the value oif A ^ B. If applied to an A or B channel, both channel show the xored signal for xor=1. For xor=2, the xored signal is split between channels A and B. See also the Reference Manual, chapter about double pulses. The behavior of xor=2 can also be achieved using the center method for locating a pulse within a clock period. The output is enabled for board pins only. CPU pins may still be used for FLEXPWM, e.g. as sync source, but the signal will not be routed to the output. That applies only to FLEXPWM pins. The use of QTMR pins which are not board pins will be rejected. As part of this commit, the _WFE() statement is removed from ticks_delay_us64() to prevent PWM glitching during calls to sleep().
3 years ago
void machine_pwm_deinit_all(void);
mimxrt: Add the Timer class to the machine module. It supports three hardware timer channels based on the PIT timers of the MIMXRT MCU. The timer id's are 0, 1 and 2. On soft reboot all active timers will be stopped via finalisers.
4 years ago
void machine_timer_init_PIT(void);
mimxrt/sdcard: Implement SDCard driver. - Configures `PLL2->PFD0` with **198MHz** as base clock of `USDHCx` peripheral. - Adds guards for SDCard related files via `MICROPY_PY_MACHINE_SDCARD` - Adds creation of pin defines for SDCard to make-pins.py - Adds new configuration option for SDCard peripheral pinout to mpconfigport.h - Adds interrupt handling support instead of polling - Adds support for `ADMA2` powered data transfer - Configures SDCard to run in HS (high-speed mode) with **50MHz** only! SDCard support is optional and requires `USDHC` peripheral. Thus this driver is not available on `MIMXRT1010_EVK`. SDCard support is enabled by setting `MICROPY_PY_MACHINE_SDCARD = 1` in mpconfigboard.mk. Signed-off-by: Philipp Ebensberger
3 years ago
void machine_sdcard_init0(void);
mimxrt/sdram: Add SDRAM support. Adds support for SDRAM via `SEMC` peripheral. SDRAM support can be enabled in the mpconfigboard.mk file by setting `MICROPY_HW_SDRAM_AVAIL` to `1` and poviding the size of the RAM via `MICROPY_HW_FLASH_SIZE`. When SDRAM support is enabled the whole SDRAM is currently used used for MicroPython heap. Signed-off-by: Philipp Ebensberger
3 years ago
void mimxrt_sdram_init(void);
mixmrt/machine_i2s: Add I2S protocol support. This commit adds support for machine.I2S on the mimxrt port. The I2S API is consistent with the existing stm32, esp32, and rp2 implementations. I2S features: - controller transmit and controller receive - 16-bit and 32-bit sample sizes - mono and stereo formats - sampling frequencies from 8kHz to 48kHz - 3 modes of operation: - blocking - non-blocking with callback - uasyncio - configurable internal buffer - optional MCK Tested with the following development boards: - MIMXRT1010_EVK, MIMXRT1015_EVK, MIMXRT1020_EVK, MIMXRT1050_EVK - Teensy 4.0, Teensy 4.1 - Olimex RT1010 - Seeed ARCH MIX Tested with the following I2S hardware peripherals: - UDA1334 - GY-SPH0645LM4H - WM8960 codec on board the MIMXRT boards and separate breakout board - INMP441 - PCM5102 - SGTL5000 on the Teensy audio shield Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
3 years ago
void machine_i2s_init0();
void machine_i2s_deinit_all(void);
mimxrt/machine_rtc: Start RTC at boot and set datetime if not set. Changes in this commit: - Start the RTC Timer at system boot. Otherwise time.time() will advance only if an RTC() object was created. - Set the time to a more recent date than Jan 1, 1970, if not set. That is 2013/10/14, 19:53:11, MicroPython's first commit. - Compensate an underflow in in timeutils_seconds_since_2000(), called by time.time(), if the time is set to a pre-2000 date.
3 years ago
void machine_rtc_start(void);
mimxrt: Add the Timer class to the machine module. It supports three hardware timer channels based on the PIT timers of the MIMXRT MCU. The timer id's are 0, 1 and 2. On soft reboot all active timers will be stopped via finalisers.
4 years ago
#endif // MICROPY_INCLUDED_MIMXRT_MODMACHINE_H