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Diffstat (limited to 'cc3200/misc/mpsystick.c')
-rw-r--r-- | cc3200/misc/mpsystick.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/cc3200/misc/mpsystick.c b/cc3200/misc/mpsystick.c deleted file mode 100644 index 7c35354e1..000000000 --- a/cc3200/misc/mpsystick.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * This file is part of the Micro Python project, http://micropython.org/ - * - * The MIT License (MIT) - * - * Copyright (c) 2013, 2014 Damien P. George - * Copyright (c) 2015 Daniel Campora - * - * 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. - */ - -#include "py/mpconfig.h" -#include "py/obj.h" -#include "py/mphal.h" -#include "mpsystick.h" -#include "systick.h" -#include "inc/hw_types.h" -#include "inc/hw_nvic.h" - -#ifdef USE_FREERTOS -#include "FreeRTOS.h" -#include "task.h" -#endif - - -bool sys_tick_has_passed(uint32_t start_tick, uint32_t delay_ms) { - return mp_hal_ticks_ms() - start_tick >= delay_ms; -} - -// waits until at least delay_ms milliseconds have passed from the sampling of -// startTick. Handles overflow properly. Assumes stc was taken from -// mp_hal_ticks_ms() some time before calling this function. -void sys_tick_wait_at_least(uint32_t start_tick, uint32_t delay_ms) { -#ifdef USE_FREERTOS - vTaskDelay (delay_ms / portTICK_PERIOD_MS); -#else - while (!sys_tick_has_passed(start_tick, delay_ms)) { - __WFI(); // enter sleep mode, waiting for interrupt - } -#endif -} - -// The SysTick timer counts down at HAL_FCPU_HZ, so we can use that knowledge -// to grab a microsecond counter. -// We assume that mp_hal_ticks_ms returns milliseconds. -uint32_t sys_tick_get_microseconds(void) { - mp_uint_t irq_state = disable_irq(); - uint32_t counter = SysTickValueGet(); - uint32_t milliseconds = mp_hal_ticks_ms(); - enable_irq(irq_state); - - uint32_t load = SysTickPeriodGet(); - counter = load - counter; // Convert from decrementing to incrementing - return (milliseconds * 1000) + ((counter * 1000) / load); -} |