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author | Alexsander Akers <me@a2.io> | 2022-01-25 15:03:22 -0500 |
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committer | GitHub <noreply@github.com> | 2022-01-25 15:03:22 -0500 |
commit | b8de35658ffd78ad8b22f91ccbbd3d63663afda9 (patch) | |
tree | 1f265ddfcc8e5abf0316b81b15f80bf5c70fa7b7 /watch-library/hardware/hpl/systick | |
parent | 9e24f6c336773c7404139ab4db0eaab2f99504e2 (diff) | |
download | Sensor-Watch-b8de35658ffd78ad8b22f91ccbbd3d63663afda9.tar.gz Sensor-Watch-b8de35658ffd78ad8b22f91ccbbd3d63663afda9.tar.bz2 Sensor-Watch-b8de35658ffd78ad8b22f91ccbbd3d63663afda9.zip |
Sensor Watch Simulator (#35)
* Put something on screen
* Use the 32bit watch_date_time repr to pass from JS
* Implement periodic callbacks
* Clear display on enabling
* Hook up watch_set_led_color() to SVG (green-only)
* Make debug output full-width
* Remove default Emscripten canvas
* Implement sleep and button clicks
* Fix time zone conversion bug in beats-time app
* Clean up warnings
* Fix pin levels
* Set time zone to browser value (if available)
* Add basic backup data saving
* Silence format specifier warnings in both targets
* Remove unnecessary, copied files
* Use RTC pointer to clear callbacks (if available)
* Use preprocessor define to avoid hardcoding MOVEMENT_NUM_FACES
* Change each face to const preprocessor definition
* Remove Intl.DateTimeFormat usage
* Update shell.html title, header
* Add touch start/end event handlers on SVG buttons
* Update shell.html
* Update folder structure (shared, simulator, hardware under watch-library)
* Tease out shared components from watch_slcd
* Clean up simulator watch_slcd.c inline JS calls
* Fix missing newlines at end of file
* Add simulator warnings (except format, unused-paremter)
* Implement remaining watch_rtc functions
* Fix button bug on mouse down then drag out
* Implement remaining watch_slcd functions
* Link keyboard events to buttons (for keys A, L, M)
* Rewrite event handling (mouse, touch, keyboard) in C
* Set explicit text UTF-8 charset in shell.html
* Address PR comments
* Remove unused directories from include paths
Diffstat (limited to 'watch-library/hardware/hpl/systick')
-rw-r--r-- | watch-library/hardware/hpl/systick/hpl_systick.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/watch-library/hardware/hpl/systick/hpl_systick.c b/watch-library/hardware/hpl/systick/hpl_systick.c new file mode 100644 index 00000000..c2f3b29e --- /dev/null +++ b/watch-library/hardware/hpl/systick/hpl_systick.c @@ -0,0 +1,104 @@ + +/** + * \file + * + * \brief SysTick related functionality implementation. + * + * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries. + * + * \asf_license_start + * + * \page License + * + * Subject to your compliance with these terms, you may use Microchip + * software and any derivatives exclusively with Microchip products. + * It is your responsibility to comply with third party license terms applicable + * to your use of third party software (including open source software) that + * may accompany Microchip software. + * + * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, + * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, + * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, + * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE + * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL + * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE + * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE + * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT + * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY + * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, + * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE. + * + * \asf_license_stop + * + */ + +#include <hpl_time_measure.h> +#include <hpl_systick_config.h> +#include <hpl_delay.h> + +/** + * \brief Initialize system time module + */ +void _system_time_init(void *const hw) +{ + (void)hw; + SysTick->LOAD = (0xFFFFFF << SysTick_LOAD_RELOAD_Pos); + SysTick->CTRL = (1 << SysTick_CTRL_ENABLE_Pos) | (CONF_SYSTICK_TICKINT << SysTick_CTRL_TICKINT_Pos) + | (1 << SysTick_CTRL_CLKSOURCE_Pos); +} +/** + * \brief Initialize delay functionality + */ +void _delay_init(void *const hw) +{ + _system_time_init(hw); +} + +/** + * \brief De-initialize system time module + */ +void _system_time_deinit(void *const hw) +{ + (void)hw; + SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk; +} + +/** + * \brief Get system time + */ +system_time_t _system_time_get(const void *const hw) +{ + (void)hw; + return (system_time_t)SysTick->VAL; +} + +/** + * \brief Get maximum possible system time + */ +system_time_t _system_time_get_max_time_value(const void *const hw) +{ + (void)hw; + return 0xFFFFFF; +} +/** + * \brief Delay loop to delay n number of cycles + */ +void _delay_cycles(void *const hw, uint32_t cycles) +{ + (void)hw; + uint8_t n = cycles >> 24; + uint32_t buf = cycles; + + while (n--) { + SysTick->LOAD = 0xFFFFFF; + SysTick->VAL = 0xFFFFFF; + while (!(SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk)) + ; + buf -= 0xFFFFFF; + } + + SysTick->LOAD = buf; + SysTick->VAL = buf; + while (!(SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk)) + ; +} |