5d473d3093
If USB CDC is connected and the board sends data, but the host does not receive the data, the device locks up. This is fixed in this commit by having a timeout of 500ms, after which time the transmission is skipped.
115 lines
3.8 KiB
C
115 lines
3.8 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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* Copyright (c) 2020 Jim Mussared
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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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#ifndef MICROPY_INCLUDED_MIMXRT_MPHALPORT_H
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#define MICROPY_INCLUDED_MIMXRT_MPHALPORT_H
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#include <stdint.h>
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#include "ticks.h"
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#include "py/ringbuf.h"
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#include "pin.h"
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#include "fsl_clock.h"
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#define MICROPY_HAL_VERSION "2.8.0"
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#define MICROPY_HW_USB_CDC_TX_TIMEOUT (500)
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#define MP_HAL_PIN_FMT "%q"
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extern ringbuf_t stdin_ringbuf;
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// Define an alias fo systick_ms, because the shared softtimer.c uses
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// the symbol uwTick for the systick ms counter.
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#define uwTick systick_ms
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#define mp_hal_pin_obj_t const machine_pin_obj_t *
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#define mp_hal_get_pin_obj(o) pin_find(o)
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#define mp_hal_pin_name(p) ((p)->name)
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#define mp_hal_pin_input(p) machine_pin_set_mode(p, PIN_MODE_IN);
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#define mp_hal_pin_output(p) machine_pin_set_mode(p, PIN_MODE_OUT);
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#define mp_hal_pin_open_drain(p) machine_pin_set_mode(p, PIN_MODE_OPEN_DRAIN);
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#define mp_hal_pin_high(p) (p->gpio->DR_SET = 1 << p->pin)
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#define mp_hal_pin_low(p) (p->gpio->DR_CLEAR = 1 << p->pin)
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#define mp_hal_pin_write(p, value) (GPIO_PinWrite(p->gpio, p->pin, value))
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#define mp_hal_pin_toggle(p) (GPIO_PortToggle(p->gpio, (1 << p->pin)))
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#define mp_hal_pin_read(p) (GPIO_PinReadPadStatus(p->gpio, p->pin))
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#define mp_hal_pin_od_low(p) mp_hal_pin_low(p)
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#define mp_hal_pin_od_high(p) mp_hal_pin_high(p)
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#define mp_hal_quiet_timing_enter() raise_irq_pri(1)
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#define mp_hal_quiet_timing_exit(irq_state) restore_irq_pri(irq_state)
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void mp_hal_set_interrupt_char(int c);
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static inline mp_uint_t mp_hal_ticks_ms(void) {
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return ticks_ms32();
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}
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static inline mp_uint_t mp_hal_ticks_us(void) {
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return ticks_us32();
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}
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static inline void mp_hal_delay_ms(mp_uint_t ms) {
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uint64_t us = (uint64_t)ms * 1000;
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ticks_delay_us64(us);
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}
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static inline void mp_hal_delay_us(mp_uint_t us) {
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ticks_delay_us64(us);
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}
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#define mp_hal_delay_us_fast(us) mp_hal_delay_us(us)
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static inline void mp_hal_ticks_cpu_enable(void) {
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CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
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DWT->LAR = 0xc5acce55;
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DWT->CYCCNT = 0;
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DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
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}
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static inline mp_uint_t mp_hal_ticks_cpu(void) {
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return DWT->CYCCNT;
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}
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static inline mp_uint_t mp_hal_get_cpu_freq(void) {
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return CLOCK_GetCpuClkFreq();
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}
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enum {
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MP_HAL_MAC_WLAN0 = 0,
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MP_HAL_MAC_WLAN1,
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MP_HAL_MAC_BDADDR,
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MP_HAL_MAC_ETH0,
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MP_HAL_MAC_ETH1,
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};
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void mp_hal_generate_laa_mac(int idx, uint8_t buf[6]);
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void mp_hal_get_mac(int idx, uint8_t buf[6]);
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void mp_hal_get_mac_ascii(int idx, size_t chr_off, size_t chr_len, char *dest);
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void mp_hal_get_unique_id(uint8_t id[]);
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#endif // MICROPY_INCLUDED_MIMXRT_MPHALPORT_H
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