#include "bsp_led.h" static const uint16_t led_brightness_table[1001]; void bsp_led_init(void) { /* 开启GPIOA/B和TIM1时钟 */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_TIM1, ENABLE); /* 配置GPIO */ GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOA, &GPIO_InitStructure); //TIM1_CH1=PA8 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_WriteBit(GPIOB, GPIO_InitStructure.GPIO_Pin, Bit_RESET); GPIO_Init(GPIOB, &GPIO_InitStructure); //LED=PB9 /* 初始化定时器时基 */ TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_TimeBaseStructInit(&TIM_TimeBaseStructure); TIM_TimeBaseStructure.TIM_Prescaler = 3-1; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseStructure.TIM_Period = 10000-1; //2.4kHz PWM TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); TIM_ARRPreloadConfig(TIM1, ENABLE); /* 初始化定时器PWM输出 */ TIM_OCInitTypeDef TIM_OCInitStructure; TIM_OCStructInit(&TIM_OCInitStructure); TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 0; TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset; TIM_OC1Init(TIM1, &TIM_OCInitStructure); TIM_OC1PreloadConfig(TIM1, TIM_OCPreload_Enable); TIM_Cmd(TIM1, ENABLE); TIM_CtrlPWMOutputs(TIM1, ENABLE); } void bsp_led_on(void) { GPIO_WriteBit(GPIOB, GPIO_Pin_9, Bit_SET); } void bsp_led_off(void) { GPIO_WriteBit(GPIOB, GPIO_Pin_9, Bit_RESET); } void bsp_led_toggle(void) { GPIO_WriteBit(GPIOB, GPIO_Pin_9, !GPIO_ReadOutputDataBit(GPIOB, GPIO_Pin_9)); } void bsp_led_strip_set_brightness(uint16_t brightness) { if (brightness > 1000) { brightness = 1000; } TIM_SetCompare1(TIM1, led_brightness_table[brightness]); } static const uint16_t led_brightness_table[1001] = { //指数亮度表 1000->10000 0, 1, 2, 4, 6, 8, 10, 13, 15, 18, 21, 24, 27, 30, 33, 36, 40, 43, 47, 50, 54, 57, 61, 65, 69, 73, 77, 80, 85, 89, 93, 97, 101, 105, 110, 114, 118, 123, 127, 132, 136, 141, 145, 150, 155, 160, 164, 169, 174, 179, 184, 189, 194, 199, 204, 209, 214, 219, 224, 229, 234, 240, 245, 250, 255, 261, 266, 272, 277, 283, 288, 293, 299, 305, 310, 316, 321, 327, 333, 338, 344, 350, 356, 362, 367, 373, 379, 385, 391, 397, 403, 409, 415, 421, 427, 433, 439, 445, 451, 457, 464, 470, 476, 482, 489, 495, 501, 507, 514, 520, 527, 533, 539, 546, 552, 559, 565, 572, 578, 585, 591, 598, 605, 611, 618, 624, 631, 638, 645, 651, 658, 665, 672, 678, 685, 692, 699, 706, 713, 720, 726, 733, 740, 747, 754, 761, 768, 775, 782, 789, 796, 804, 811, 818, 825, 832, 839, 846, 854, 861, 868, 875, 883, 890, 897, 904, 912, 919, 926, 934, 941, 949, 956, 963, 971, 978, 986, 993, 1001, 1008, 1016, 1023, 1031, 1038, 1046, 1054, 1061, 1069, 1076, 1084, 1092, 1099, 1107, 1115, 1123, 1130, 1138, 1146, 1154, 1161, 1169, 1177, 1185, 1193, 1200, 1208, 1216, 1224, 1232, 1240, 1248, 1256, 1264, 1272, 1280, 1288, 1295, 1304, 1312, 1320, 1328, 1336, 1344, 1352, 1360, 1368, 1376, 1384, 1392, 1401, 1409, 1417, 1425, 1433, 1441, 1450, 1458, 1466, 1474, 1483, 1491, 1499, 1508, 1516, 1524, 1533, 1541, 1549, 1558, 1566, 1574, 1583, 1591, 1600, 1608, 1617, 1625, 1633, 1642, 1650, 1659, 1667, 1676, 1685, 1693, 1702, 1710, 1719, 1727, 1736, 1745, 1753, 1762, 1770, 1779, 1788, 1796, 1805, 1814, 1823, 1831, 1840, 1849, 1858, 1866, 1875, 1884, 1893, 1901, 1910, 1919, 1928, 1937, 1946, 1954, 1963, 1972, 1981, 1990, 1999, 2008, 2017, 2026, 2035, 2044, 2053, 2062, 2071, 2080, 2089, 2098, 2107, 2116, 2125, 2134, 2143, 2152, 2161, 2170, 2179, 2188, 2197, 2207, 2216, 2225, 2234, 2243, 2252, 2262, 2271, 2280, 2289, 2298, 2308, 2317, 2326, 2335, 2345, 2354, 2363, 2373, 2382, 2391, 2400, 2410, 2419, 2429, 2438, 2447, 2457, 2466, 2475, 2485, 2494, 2504, 2513, 2523, 2532, 2542, 2551, 2560, 2570, 2579, 2589, 2598, 2608, 2618, 2627, 2637, 2646, 2656, 2665, 2675, 2685, 2694, 2704, 2713, 2723, 2733, 2742, 2752, 2762, 2771, 2781, 2791, 2800, 2810, 2820, 2829, 2839, 2849, 2859, 2868, 2878, 2888, 2898, 2907, 2917, 2927, 2937, 2947, 2957, 2966, 2976, 2986, 2996, 3006, 3016, 3026, 3035, 3045, 3055, 3065, 3075, 3085, 3095, 3105, 3115, 3125, 3135, 3145, 3155, 3165, 3175, 3185, 3195, 3205, 3215, 3225, 3235, 3245, 3255, 3265, 3275, 3285, 3295, 3306, 3316, 3326, 3336, 3346, 3356, 3366, 3377, 3387, 3397, 3407, 3417, 3427, 3438, 3448, 3458, 3468, 3479, 3489, 3499, 3509, 3520, 3530, 3540, 3550, 3561, 3571, 3581, 3592, 3602, 3612, 3623, 3633, 3643, 3654, 3664, 3674, 3685, 3695, 3706, 3716, 3726, 3737, 3747, 3758, 3768, 3779, 3789, 3800, 3810, 3821, 3831, 3842, 3852, 3863, 3873, 3884, 3894, 3905, 3915, 3926, 3936, 3947, 3957, 3968, 3979, 3989, 4000, 4010, 4021, 4032, 4042, 4053, 4064, 4074, 4085, 4095, 4106, 4117, 4128, 4138, 4149, 4160, 4170, 4181, 4192, 4203, 4213, 4224, 4235, 4246, 4256, 4267, 4278, 4289, 4299, 4310, 4321, 4332, 4343, 4353, 4364, 4375, 4386, 4397, 4408, 4419, 4429, 4440, 4451, 4462, 4473, 4484, 4495, 4506, 4517, 4528, 4539, 4550, 4560, 4571, 4582, 4593, 4604, 4615, 4626, 4637, 4648, 4659, 4670, 4681, 4692, 4703, 4715, 4726, 4737, 4748, 4759, 4770, 4781, 4792, 4803, 4814, 4825, 4836, 4848, 4859, 4870, 4881, 4892, 4903, 4914, 4926, 4937, 4948, 4959, 4970, 4982, 4993, 5004, 5015, 5026, 5038, 5049, 5060, 5071, 5083, 5094, 5105, 5116, 5128, 5139, 5150, 5162, 5173, 5184, 5195, 5207, 5218, 5229, 5241, 5252, 5264, 5275, 5286, 5298, 5309, 5320, 5332, 5343, 5355, 5366, 5377, 5389, 5400, 5412, 5423, 5435, 5446, 5457, 5469, 5480, 5492, 5503, 5515, 5526, 5538, 5549, 5561, 5572, 5584, 5595, 5607, 5619, 5630, 5642, 5653, 5665, 5676, 5688, 5699, 5711, 5723, 5734, 5746, 5757, 5769, 5781, 5792, 5804, 5816, 5827, 5839, 5851, 5862, 5874, 5886, 5897, 5909, 5921, 5932, 5944, 5956, 5967, 5979, 5991, 6003, 6014, 6026, 6038, 6050, 6061, 6073, 6085, 6097, 6109, 6120, 6132, 6144, 6156, 6168, 6179, 6191, 6203, 6215, 6227, 6239, 6250, 6262, 6274, 6286, 6298, 6310, 6322, 6333, 6345, 6357, 6369, 6381, 6393, 6405, 6417, 6429, 6441, 6453, 6465, 6477, 6489, 6501, 6513, 6525, 6537, 6549, 6560, 6573, 6585, 6597, 6609, 6621, 6633, 6645, 6657, 6669, 6681, 6693, 6705, 6717, 6729, 6741, 6753, 6765, 6777, 6789, 6802, 6814, 6826, 6838, 6850, 6862, 6874, 6886, 6899, 6911, 6923, 6935, 6947, 6959, 6972, 6984, 6996, 7008, 7020, 7033, 7045, 7057, 7069, 7082, 7094, 7106, 7118, 7130, 7143, 7155, 7167, 7180, 7192, 7204, 7216, 7229, 7241, 7253, 7266, 7278, 7290, 7303, 7315, 7327, 7340, 7352, 7364, 7377, 7389, 7401, 7414, 7426, 7438, 7451, 7463, 7476, 7488, 7500, 7513, 7525, 7538, 7550, 7563, 7575, 7587, 7600, 7612, 7625, 7637, 7650, 7662, 7675, 7687, 7700, 7712, 7725, 7737, 7750, 7762, 7775, 7787, 7800, 7812, 7825, 7837, 7850, 7862, 7875, 7888, 7900, 7913, 7925, 7938, 7950, 7963, 7976, 7988, 8001, 8013, 8026, 8039, 8051, 8064, 8077, 8089, 8102, 8114, 8127, 8140, 8152, 8165, 8178, 8191, 8203, 8216, 8229, 8241, 8254, 8267, 8279, 8292, 8305, 8318, 8330, 8343, 8356, 8369, 8381, 8394, 8407, 8420, 8432, 8445, 8458, 8471, 8484, 8496, 8509, 8522, 8535, 8548, 8560, 8573, 8586, 8599, 8612, 8625, 8637, 8650, 8663, 8676, 8689, 8702, 8715, 8728, 8740, 8753, 8766, 8779, 8792, 8805, 8818, 8831, 8844, 8857, 8870, 8883, 8895, 8908, 8921, 8934, 8947, 8960, 8973, 8986, 8999, 9012, 9025, 9038, 9051, 9064, 9077, 9090, 9103, 9116, 9129, 9142, 9155, 9168, 9181, 9195, 9208, 9221, 9234, 9247, 9260, 9273, 9286, 9299, 9312, 9325, 9338, 9352, 9365, 9378, 9391, 9404, 9417, 9430, 9443, 9457, 9470, 9483, 9496, 9509, 9522, 9536, 9549, 9562, 9575, 9588, 9602, 9615, 9628, 9641, 9654, 9668, 9681, 9694, 9707, 9720, 9734, 9747, 9760, 9773, 9787, 9800, 9813, 9827, 9840, 9853, 9866, 9880, 9893, 9906, 9920, 9933, 9946, 9960, 9973, 9986, 9999 };