diff options
Diffstat (limited to 'ChibiOS_16.1.5/community/testhal/KINETIS/FRDM-KL26Z/PWM/main.c')
| -rw-r--r-- | ChibiOS_16.1.5/community/testhal/KINETIS/FRDM-KL26Z/PWM/main.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/ChibiOS_16.1.5/community/testhal/KINETIS/FRDM-KL26Z/PWM/main.c b/ChibiOS_16.1.5/community/testhal/KINETIS/FRDM-KL26Z/PWM/main.c deleted file mode 100644 index 740471a..0000000 --- a/ChibiOS_16.1.5/community/testhal/KINETIS/FRDM-KL26Z/PWM/main.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * (c) 2015 flabbergast <s3+flabbergast@sdfeu.org> - * Based on ChibiOS 3.0.1 demo code, license below. - * Licensed under the Apache License, Version 2.0. - */ - -/* - * ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "ch.h" -#include "hal.h" - -/* - * on FRDM-KL26Z: - * red LED on PTE29/TPM0_CH2 (AF3) - * green LED on PTE31/TPM0_CH4 (AF3) - * blue LED on PTD5/TPM0_CH5 (AF4) - */ - -#define PWM_DRIVER PWMD1 - -/* PWM config structure */ -/* Note: the PWM clock frequency must be so that - * SYSCLK / FREQ is a power of 2 between 1 and 128. - */ -static const PWMConfig pwmcfg = { - 750000, /* 750kHz PWM clock frequency. */ - 1000, /* PWM period is 1000 cycles. */ - /* meaning PWM resolution is 750 */ - NULL, /* no callback */ - { - {PWM_OUTPUT_DISABLED, NULL}, /* ch0: mode, no callback */ - {PWM_OUTPUT_DISABLED, NULL}, /* ch1: mode, no callback */ - {PWM_OUTPUT_ACTIVE_LOW, NULL}, /* ch2: mode, no callback */ - {PWM_OUTPUT_DISABLED, NULL}, /* ch3: mode, no callback */ - {PWM_OUTPUT_ACTIVE_LOW, NULL}, /* ch4: mode, no callback */ - {PWM_OUTPUT_ACTIVE_LOW, NULL} /* ch5: mode, no callback */ - }, -}; - -#define BREATHE_STEP 16 /* ms; = 4000ms/TABLE_SIZE */ - -/* Breathing Sleep LED brighness(PWM On period) table - * - * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63 - * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i } - */ -/* ruby -e "a = ((0..255).map{|x| Math.exp(Math.cos(Math::PI+(2*x*(Math::PI)/255)))-Math.exp(-1) }); m = a.max; a.map\!{|x| (10000*x/m).to_i}; p a" */ -#define TABLE_SIZE 256 -static const uint16_t breathing_table[TABLE_SIZE] = { - 0, 0, 1, 4, 7, 11, 17, 23, 30, 38, 47, 58, 69, 81, 94, 109, 124, 141, 159, 177, 197, 218, 241, 264, 289, 315, 343, 372, 402, 433, 466, 501, 537, 574, 613, 654, 696, 741, 786, 834, 883, 935, 988, 1043, 1100, 1159, 1220, 1283, 1349, 1416, 1486, 1558, 1632, 1709, 1788, 1870, 1954, 2040, 2129, 2220, 2314, 2411, 2510, 2611, 2715, 2822, 2932, 3044, 3158, 3275, 3395, 3517, 3641, 3768, 3897, 4028, 4162, 4298, 4436, 4576, 4717, 4861, 5006, 5152, 5300, 5449, 5600, 5751, 5903, 6055, 6208, 6361, 6513, 6666, 6818, 6970, 7120, 7269, 7417, 7563, 7708, 7850, 7990, 8127, 8261, 8391, 8519, 8643, 8762, 8878, 8989, 9095, 9196, 9293, 9383, 9469, 9548, 9622, 9689, 9750, 9805, 9853, 9895, 9930, 9957, 9978, 9992, 9999, 10000, 9992, 9978, 9957, 9930, 9895, 9853, 9805, 9750, 9689, 9622, 9548, 9469, 9383, 9293, 9196, 9095, 8989, 8878, 8762, 8643, 8519, 8391, 8261, 8127, 7990, 7850, 7708, 7563, 7417, 7269, 7120, 6970, 6818, 6666, 6513, 6361, 6208, 6055, 5903, 5751, 5600, 5449, 5300, 5152, 5006, 4861, 4717, 4576, 4436, 4298, 4162, 4028, 3897, 3768, 3641, 3517, 3395, 3275, 3158, 3044, 2932, 2822, 2715, 2611, 2510, 2411, 2314, 2220, 2129, 2040, 1954, 1870, 1788, 1709, 1632, 1558, 1486, 1416, 1349, 1283, 1220, 1159, 1100, 1043, 988, 935, 883, 834, 786, 741, 696, 654, 613, 574, 537, 501, 466, 433, 402, 372, 343, 315, 289, 264, 241, 218, 197, 177, 159, 141, 124, 109, 94, 81, 69, 58, 47, 38, 30, 23, 17, 11, 7, 4, 1, 0, 0 -}; - -uint16_t table_pos = 0; -uint8_t active_led = 0; - -static THD_WORKING_AREA(waBreatheThread, 128); -static THD_FUNCTION(BreatheThread, arg) { - (void)arg; - chRegSetThreadName("breatheThread"); - - while(true) { - switch(active_led) { - case 0: /* red LED */ - pwmEnableChannel(&PWM_DRIVER, 2, PWM_PERCENTAGE_TO_WIDTH(&PWM_DRIVER,breathing_table[table_pos])); - break; - case 1: /* green LED */ - pwmEnableChannel(&PWM_DRIVER, 4, PWM_PERCENTAGE_TO_WIDTH(&PWM_DRIVER,breathing_table[table_pos])); - break; - case 2: /* blue LED */ - pwmEnableChannel(&PWM_DRIVER, 5, PWM_PERCENTAGE_TO_WIDTH(&PWM_DRIVER,breathing_table[table_pos])); - break; - } - table_pos++; - if(table_pos == TABLE_SIZE) { - table_pos = 0; - active_led = (active_led+1) % 3; - } - chThdSleepMilliseconds(BREATHE_STEP); - } -} - -/* - * Check button thread - */ -static THD_WORKING_AREA(waButtonThread, 128); -static THD_FUNCTION(ButtonThread, arg) { - (void)arg; - chRegSetThreadName("buttonThread"); - - uint8_t newstate, state = PAL_HIGH; - - while(true) { - if(palReadLine(LINE_BUTTON) != state) { - chThdSleepMilliseconds(20); /* debounce */ - newstate = palReadLine(LINE_BUTTON); - if(newstate != state) { - state = newstate; - if(newstate == PAL_LOW) { - table_pos = (table_pos + 120)%TABLE_SIZE; - } - } - } - chThdSleepMilliseconds(20); - } -} - -/* - * Application entry point. - */ -int main(void) { - /* - * System initializations. - * - HAL initialization, this also initializes the configured device drivers - * and performs the board-specific initializations. - * - Kernel initialization, the main() function becomes a thread and the - * RTOS is active. - */ - halInit(); - chSysInit(); - - /* - * Turn off the RGB LED. - */ - palSetLine(LINE_LED_RED); /* red */ - palSetLine(LINE_LED_GREEN); /* green */ - palSetLine(LINE_LED_BLUE); /* blue */ - - /* - * Create the button check thread. - */ - chThdCreateStatic(waButtonThread, sizeof(waButtonThread), NORMALPRIO, ButtonThread, NULL); - - /* - * Start the PWM driver, route TPM0 output to PTE29, PTE31, PTD5. - * Enable channels now to avoid a blink later. - */ - pwmStart(&PWM_DRIVER, &pwmcfg); - palSetLineMode(LINE_LED_RED, PAL_MODE_ALTERNATIVE_3); - palSetLineMode(LINE_LED_GREEN, PAL_MODE_ALTERNATIVE_3); - palSetLineMode(LINE_LED_BLUE, PAL_MODE_ALTERNATIVE_4); - pwmEnableChannel(&PWM_DRIVER, 2, 0); - pwmEnableChannel(&PWM_DRIVER, 4, 0); - pwmEnableChannel(&PWM_DRIVER, 5, 0); - - /* - * Create the breathe thread. - */ - chThdCreateStatic(waBreatheThread, sizeof(waBreatheThread), NORMALPRIO, BreatheThread, NULL); - - /* - * Normal main() thread activity, in this demo it does nothing except - * sleeping in a loop and check the button state, when the button is - * pressed ... nothing happens. - */ - while(true) { - chThdSleepMilliseconds(500); - } -} |