mirror of
https://github.com/micropython/micropython.git
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robert-hh
61bbd78eba
These classes are based on the Quadrature Encoder blocks of the i.MXRT MCUs. The i.MXRT 102x has two encoders, the other ones four. The i.MXRT 101x does not support this function. It is implemented as two classes, Encoder and Counter. The number of pins that can be uses as inputs is limited by the MCU architecture and the board schematics. The Encoder class supports: - Defining the module. - Defining the input pins. - Defining a pin for an index signal. - Defining a pin for a reset signal. - Defining an output pin showing the compare match signal. - Setting the number of cycles per revolution (min/max). - Setting the initial value for the position. - Setting the counting direction. - Setting a glitch filter. - Defining callbacks for getting to a specific position, overrun and underrun (starting the next revolution). These callbacks can be hard interrupts to ensure short latency. The encoder counts all phases of a cycle. The span for the position is 2**32, for the revolution is 2**16. The highest input frequency is CPU-Clock/24. Note that the "phases" argument is emulated at the API level (the hardware will always count all phases). The Counter mode counts single pulses on input A of the Encoder. The configuration supports: - Defining the module. - Defining the input pin. - Defining the counting direction, either fixed or controlled by the level of an input pin. - Defining a pin for an index signal. - Defining an output pin showing the compare match signal. - Setting the counter value. - Setting the glitch filter. - Defining a callback which is called at a certain value. - Settings for MIMXRT1015. The MIMXRT1015 MCU has only one encoder/counter unit. The counting range is 0 - 2**32-1 and a 16 bit overrun counter. The highest input frequency is CPU-Clock/12. The implementation of the `.irq()` method uses the common code from `shared/runtime/mpirq.c`, including the `irq().flags()` and `irq().trigger()` methods. Signed-off-by: robert-hh <robert@hammelrath.com>
252 lines
9.2 KiB
C
252 lines
9.2 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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// Options controlling how MicroPython is built, overriding defaults in py/mpconfig.h
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// Board specific definitions
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#include "mpconfigboard.h"
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#include "fsl_common.h"
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uint32_t trng_random_u32(void);
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// Config level
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#define MICROPY_CONFIG_ROM_LEVEL (MICROPY_CONFIG_ROM_LEVEL_FULL_FEATURES)
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#ifndef MICROPY_HW_ENABLE_PSRAM
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#define MICROPY_HW_ENABLE_PSRAM (0)
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#endif
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// Memory allocation policies
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#if MICROPY_HW_SDRAM_AVAIL || MICROPY_HW_ENABLE_PSRAM
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#define MICROPY_GC_STACK_ENTRY_TYPE uint32_t
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#else
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#define MICROPY_GC_STACK_ENTRY_TYPE uint16_t
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#endif
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#define MICROPY_ALLOC_PATH_MAX (256)
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#ifndef MICROPY_GC_SPLIT_HEAP
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#define MICROPY_GC_SPLIT_HEAP MICROPY_HW_ENABLE_PSRAM
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#endif
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// MicroPython emitters
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#define MICROPY_PERSISTENT_CODE_LOAD (1)
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#define MICROPY_EMIT_THUMB (1)
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#define MICROPY_EMIT_INLINE_THUMB (1)
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// Optimisations
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// Compiler configuration
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// Python internal features
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#define MICROPY_TRACKED_ALLOC (MICROPY_SSL_MBEDTLS)
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#define MICROPY_READER_VFS (1)
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#define MICROPY_ENABLE_GC (1)
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#define MICROPY_STACK_CHECK_MARGIN (1024)
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#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF (1)
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#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_MPZ)
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#define MICROPY_SCHEDULER_DEPTH (8)
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#define MICROPY_SCHEDULER_STATIC_NODES (1)
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#define MICROPY_VFS (1)
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#ifndef MICROPY_VFS_ROM
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#define MICROPY_VFS_ROM (1)
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#endif
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// Control over Python builtins
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#define MICROPY_PY_BUILTINS_HELP_TEXT mimxrt_help_text
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#define MICROPY_PY_SYS_PLATFORM "mimxrt"
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// Extended modules
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#define MICROPY_EPOCH_IS_1970 (1)
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#define MICROPY_PY_TIME_GMTIME_LOCALTIME_MKTIME (1)
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#define MICROPY_PY_TIME_TIME_TIME_NS (1)
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#define MICROPY_PY_TIME_INCLUDEFILE "ports/mimxrt/modtime.c"
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#define MICROPY_PY_OS_INCLUDEFILE "ports/mimxrt/modos.c"
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#define MICROPY_PY_OS_DUPTERM (3)
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#define MICROPY_PY_OS_DUPTERM_NOTIFY (1)
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#define MICROPY_PY_OS_SYNC (1)
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#define MICROPY_PY_OS_UNAME (1)
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#define MICROPY_PY_OS_URANDOM (1)
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#define MICROPY_PY_RANDOM_SEED_INIT_FUNC (trng_random_u32())
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#define MICROPY_PY_MACHINE (1)
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#define MICROPY_PY_MACHINE_INCLUDEFILE "ports/mimxrt/modmachine.c"
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#define MICROPY_PY_MACHINE_RESET (1)
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#define MICROPY_PY_MACHINE_BARE_METAL_FUNCS (1)
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#define MICROPY_PY_MACHINE_BOOTLOADER (1)
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#define MICROPY_PY_MACHINE_DISABLE_IRQ_ENABLE_IRQ (1)
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#define MICROPY_PY_MACHINE_ADC (1)
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#define MICROPY_PY_MACHINE_ADC_INCLUDEFILE "ports/mimxrt/machine_adc.c"
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#define MICROPY_PY_MACHINE_ADC_READ_UV (1)
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#define MICROPY_PY_MACHINE_PIN_MAKE_NEW mp_pin_make_new
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#define MICROPY_PY_MACHINE_BITSTREAM (1)
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#define MICROPY_PY_MACHINE_DHT_READINTO (1)
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#define MICROPY_PY_MACHINE_PULSE (1)
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#define MICROPY_PY_MACHINE_PWM (1)
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#define MICROPY_PY_MACHINE_PWM_INCLUDEFILE "ports/mimxrt/machine_pwm.c"
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#define MICROPY_PY_MACHINE_I2C (1)
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#ifndef MICROPY_PY_MACHINE_I2C_TARGET
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#define MICROPY_PY_MACHINE_I2C_TARGET (1)
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#define MICROPY_PY_MACHINE_I2C_TARGET_INCLUDEFILE "ports/mimxrt/machine_i2c_target.c"
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#define MICROPY_PY_MACHINE_I2C_TARGET_MAX (FSL_FEATURE_SOC_LPI2C_COUNT)
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#define MICROPY_PY_MACHINE_I2C_TARGET_HARD_IRQ (1)
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#define MICROPY_PY_MACHINE_I2C_TARGET_FINALISER (1)
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#endif
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#ifndef MICROPY_PY_MACHINE_I2S
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#define MICROPY_PY_MACHINE_I2S (0)
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#endif
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#define MICROPY_PY_MACHINE_I2S_INCLUDEFILE "ports/mimxrt/machine_i2s.c"
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#define MICROPY_PY_MACHINE_I2S_CONSTANT_RX (RX)
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#define MICROPY_PY_MACHINE_I2S_CONSTANT_TX (TX)
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#define MICROPY_PY_MACHINE_I2S_MCK (1)
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#define MICROPY_PY_MACHINE_I2S_RING_BUF (1)
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#ifndef MICROPY_PY_MACHINE_SDCARD
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#define MICROPY_PY_MACHINE_SDCARD (1)
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#endif
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#define MICROPY_PY_MACHINE_SOFTI2C (1)
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#define MICROPY_PY_MACHINE_SPI (1)
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#define MICROPY_PY_MACHINE_SOFTSPI (1)
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#define MICROPY_PY_MACHINE_TIMER (1)
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#define MICROPY_PY_MACHINE_WDT (1)
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#define MICROPY_PY_MACHINE_WDT_INCLUDEFILE "ports/mimxrt/machine_wdt.c"
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#define MICROPY_PY_MACHINE_WDT_TIMEOUT_MS (1)
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#define MICROPY_SOFT_TIMER_TICKS_MS systick_ms
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#define MICROPY_PY_MACHINE_UART (1)
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#define MICROPY_PY_MACHINE_UART_INCLUDEFILE "ports/mimxrt/machine_uart.c"
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#define MICROPY_PY_MACHINE_UART_SENDBREAK (1)
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#ifndef MICROPY_PY_MACHINE_UART_IRQ
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#define MICROPY_PY_MACHINE_UART_IRQ (1)
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#endif
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#define MICROPY_PY_ONEWIRE (1)
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#define MICROPY_PY_MACHINE_BOOTLOADER (1)
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// fatfs configuration used in ffconf.h
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#define MICROPY_FATFS_ENABLE_LFN (2)
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#define MICROPY_FATFS_LFN_CODE_PAGE 437 /* 1=SFN/ANSI 437=LFN/U.S.(OEM) */
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#define MICROPY_FATFS_USE_LABEL (1)
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#define MICROPY_FATFS_RPATH (2)
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#define MICROPY_FATFS_MULTI_PARTITION (1)
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#define MICROPY_FATFS_MAX_SS (4096)
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#define MICROPY_FATFS_EXFAT (1)
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#ifndef MICROPY_PY_NETWORK
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#define MICROPY_PY_NETWORK (1)
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#endif
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#ifndef MICROPY_PY_SOCKET
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#define MICROPY_PY_SOCKET (1)
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#endif
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#define MICROPY_PY_WEBSOCKET (MICROPY_PY_LWIP)
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#define MICROPY_PY_WEBREPL (MICROPY_PY_LWIP)
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#define MICROPY_PY_LWIP_SOCK_RAW (MICROPY_PY_LWIP)
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#ifndef MICROPY_PY_NETWORK_PPP_LWIP
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#define MICROPY_PY_NETWORK_PPP_LWIP (MICROPY_PY_LWIP)
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#endif
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#define MICROPY_PY_LWIP_PPP (MICROPY_PY_NETWORK_PPP_LWIP)
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#ifndef MICROPY_PY_BLUETOOTH_ENABLE_CENTRAL_MODE
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#define MICROPY_PY_BLUETOOTH_ENABLE_CENTRAL_MODE (1)
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#endif
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#ifndef MICROPY_PY_BLUETOOTH_ENABLE_L2CAP_CHANNELS
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#define MICROPY_PY_BLUETOOTH_ENABLE_L2CAP_CHANNELS (MICROPY_BLUETOOTH_NIMBLE)
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#endif
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#ifndef MICROPY_PY_NETWORK_HOSTNAME_DEFAULT
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#define MICROPY_PY_NETWORK_HOSTNAME_DEFAULT "mpy-mimxrt"
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#endif
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#define MICROPY_HW_ENABLE_USBDEV (1)
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// Enable USB-CDC serial port
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#ifndef MICROPY_HW_USB_CDC
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#define MICROPY_HW_USB_CDC (1)
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#define MICROPY_HW_USB_CDC_1200BPS_TOUCH (1)
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#endif
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// Enable USB Mass Storage with FatFS filesystem.
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#ifndef MICROPY_HW_USB_MSC
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#define MICROPY_HW_USB_MSC (0)
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#endif
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// Hooks to add builtins
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#if defined(ENET_PHY_ADDRESS) || defined(ENET_1_PHY_ADDRESS)
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extern const struct _mp_obj_type_t network_lan_type;
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#define MICROPY_HW_NIC_ETH { MP_ROM_QSTR(MP_QSTR_LAN), MP_ROM_PTR(&network_lan_type) },
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#else
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#define MICROPY_HW_NIC_ETH
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#endif
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#ifndef MICROPY_BOARD_NETWORK_INTERFACES
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#define MICROPY_BOARD_NETWORK_INTERFACES
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#endif
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#define MICROPY_PORT_NETWORK_INTERFACES \
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MICROPY_HW_NIC_ETH \
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MICROPY_BOARD_NETWORK_INTERFACES \
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#ifndef MICROPY_BOARD_ROOT_POINTERS
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#define MICROPY_BOARD_ROOT_POINTERS
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#endif
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// Additional entries for use with pendsv_schedule_dispatch.
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#ifndef MICROPY_BOARD_PENDSV_ENTRIES
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#define MICROPY_BOARD_PENDSV_ENTRIES
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#endif
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#define MP_STATE_PORT MP_STATE_VM
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// Miscellaneous settings
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#ifndef MICROPY_HW_USB_VID
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#define MICROPY_HW_USB_VID (0xf055)
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#endif
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#ifndef MICROPY_HW_USB_PID
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#define MICROPY_HW_USB_PID (0x9802)
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#endif
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#ifndef MICROPY_EVENT_POLL_HOOK
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#define MICROPY_EVENT_POLL_HOOK \
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do { \
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mp_handle_pending(MP_HANDLE_PENDING_CALLBACKS_AND_EXCEPTIONS); \
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__WFE(); \
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} while (0);
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#endif
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#define MICROPY_MAKE_POINTER_CALLABLE(p) ((void *)((mp_uint_t)(p) | 1))
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#define MP_HAL_CLEANINVALIDATE_DCACHE(addr, size) \
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(SCB_CleanInvalidateDCache_by_Addr((uint32_t *)((uint32_t)addr & ~0x1f), \
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((uint32_t)((uint8_t *)addr + size + 0x1f) & ~0x1f) - ((uint32_t)addr & ~0x1f)))
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#define MP_HAL_CLEAN_DCACHE(addr, size) \
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(SCB_CleanDCache_by_Addr((uint32_t *)((uint32_t)addr & ~0x1f), \
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((uint32_t)((uint8_t *)addr + size + 0x1f) & ~0x1f) - ((uint32_t)addr & ~0x1f)))
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#define MP_SSIZE_MAX (0x7fffffff)
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typedef long mp_off_t;
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// Need an implementation of the log2 function which is not a macro.
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#define MP_NEED_LOG2 (1)
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// Need to provide a declaration/definition of alloca()
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#include <alloca.h>
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