Mercurial > dcf77tx / file comparison

comparison: main/task_dcf.c

main/task_dcf.c

changeset 4
426defedd402
parent 3
849ca14d4a2f
child 5
676c38f52d08
equal deleted inserted replaced
3:849ca14d4a2f 4:426defedd402
17 int impulseCount = 0; ///< 100 mSec transmit slices. 17 int impulseCount = 0; ///< 100 mSec transmit slices.
18 int8_t impulseArray[61]; ///< Pulses, 0 = no pulse, 1=100ms, 2=200ms 18 int8_t impulseArray[61]; ///< Pulses, 0 = no pulse, 1=100ms, 2=200ms
19 int actualSecond = 0; ///< Current second to transmit. 19 int actualSecond = 0; ///< Current second to transmit.
20 time_t dcf_now; ///< Current time to send. 20 time_t dcf_now; ///< Current time to send.
21 struct tm dcf_tm; ///< Local broken down time. 21 struct tm dcf_tm; ///< Local broken down time.
22 /// 22
23
24 ledc_timer_config_t ledc_timer = {
25 .speed_mode = LEDC_LOW_SPEED_MODE, ///< Use high speed timer
26 .timer_num = LEDC_TIMER_0, ///< Timer 0
27 .duty_resolution = LEDC_TIMER_10_BIT, ///< 10 bits resolution
28 .freq_hz = 77500, ///< 77.5 KHz
29 .clk_cfg = LEDC_AUTO_CLK ///< Auto select PWM clock
30 };
31
32 ledc_channel_config_t dcf77_100tx = { ///< 100% Antenna power
33 .channel = LEDC_CHANNEL_0,
34 .duty = 0, ///< Default 0%
35 .gpio_num = CONFIG_ANTENNA_100_PIN, ///< Antenna pin 100%
36 .speed_mode = LEDC_LOW_SPEED_MODE,
37 .hpoint = 0,
38 .intr_type = LEDC_INTR_DISABLE,
39 .timer_sel = LEDC_TIMER_0 ///< Timer 0
40 };
41 ledc_channel_config_t dcf77_15tx = { ///< 15% Antenna power
42 .channel = LEDC_CHANNEL_1,
43 .duty = 0,
44 .gpio_num = CONFIG_ANTENNA_15_PIN, ///< Antenna pin 15%
45 .speed_mode = LEDC_LOW_SPEED_MODE,
46 .hpoint = 0,
47 .intr_type = LEDC_INTR_DISABLE,
48 .timer_sel = LEDC_TIMER_0 ///< Timer 0
49 };
50
51
23 extern bool System_TimeOk; 52 extern bool System_TimeOk;
24 53
25 54
26 #define LED1 CONFIG_LED1_PIN 55 #define LED1 CONFIG_LED1_PIN
27 #define LED2 CONFIG_LED2_PIN 56 #define LED2 CONFIG_LED2_PIN
72 switch (impulseCount++) { 101 switch (impulseCount++) {
73 case 0: if (actualSecond == 0) { 102 case 0: if (actualSecond == 0) {
74 time(&dcf_now); 103 time(&dcf_now);
75 dcf_now += 60; 104 dcf_now += 60;
76 } 105 }
106 /* Carrier to 15% */
107 ledc_set_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0, 0);
108 ledc_update_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0);
109 ledc_set_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_1, 512);
110 ledc_update_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_1);
77 if (impulseArray[actualSecond] == 1) { 111 if (impulseArray[actualSecond] == 1) {
78 gpio_set_level(CONFIG_LED1_PIN, 1); 112 gpio_set_level(CONFIG_LED1_PIN, 1);
79 } else if (impulseArray[actualSecond] == 2) { 113 } else if (impulseArray[actualSecond] == 2) {
80 gpio_set_level(CONFIG_LED2_PIN, 1); 114 gpio_set_level(CONFIG_LED2_PIN, 1);
81 } 115 }
82 break; 116 break;
83 case 1: if (impulseArray[actualSecond] == 1) { 117 case 1: if (impulseArray[actualSecond] == 1) {
118 /* Carrier back to 100% */
119 ledc_set_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0, 512);
120 ledc_update_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0);
121 ledc_set_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_1, 0);
122 ledc_update_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_1);
84 gpio_set_level(CONFIG_LED1_PIN, 0); 123 gpio_set_level(CONFIG_LED1_PIN, 0);
85 } 124 }
86 break; 125 break;
87 case 2: gpio_set_level(CONFIG_LED1_PIN, 0); 126 case 2: /* Carrier back to 100% */
127 ledc_set_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0, 512);
128 ledc_update_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0);
129 ledc_set_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_1, 0);
130 ledc_update_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_1);
131 gpio_set_level(CONFIG_LED1_PIN, 0);
88 gpio_set_level(CONFIG_LED2_PIN, 0); 132 gpio_set_level(CONFIG_LED2_PIN, 0);
89 break; 133 break;
90 case 9: impulseCount = 0; 134 case 9: impulseCount = 0;
91 /* 135 /*
92 * To spread the CPU load, we set all bits during the first seconds 136 * To spread the CPU load, we set all bits during the first seconds
93 * because we don't use these bits. 137 * because we don't use these bits.
94 */ 138 */
95 switch (actualSecond) { 139 switch (actualSecond) {
96 case 0: /* the first 20 bits of each minute at a logical zero value */ 140 case 0: /*
97 for (i = 0; i < 20; i++) 141 * Bit 0 is always 0.
142 * Bits 1..14 are used to transmit weather information.
143 * Just some fixed values here.
144 * Bit 15, Antenna bit. 0 = normal operation, 1 = fault
145 */
146 for (i = 0; i < 16; i++)
98 impulseArray[i] = 1; 147 impulseArray[i] = 1;
99 for (i = 1; i < 9; i++)
100 impulseArray[i] = 2; /* Civil warning bits 1..14 */
101 /* Bit 15, Antenna bit. 0 = normal operation, 1 = fault */
102 break; 148 break;
103 case 1: localtime_r(&dcf_now, &dcf_tm); 149 case 1: localtime_r(&dcf_now, &dcf_tm);
104 char strftime_buf[64]; 150 char strftime_buf[64];
105 strftime(strftime_buf, sizeof(strftime_buf), "%c", &dcf_tm); 151 strftime(strftime_buf, sizeof(strftime_buf), "%c", &dcf_tm);
106 ESP_LOGI(TAG, "The current date/time to send is: %s", strftime_buf); 152 ESP_LOGI(TAG, "The current date/time to send is: %s", strftime_buf);
240 286
241 esp_timer_create_args_t timerDCF = { 287 esp_timer_create_args_t timerDCF = {
242 .callback = &DCFout, 288 .callback = &DCFout,
243 .name = "DCF timer" 289 .name = "DCF timer"
244 }; 290 };
245 esp_timer_create(&timerDCF, &timerHandle); 291 ESP_ERROR_CHECK(esp_timer_create(&timerDCF, &timerHandle));
292
293 /*
294 * Prepare the LEDC PWM channels
295 */
296 ESP_ERROR_CHECK(ledc_timer_config(&ledc_timer));
297 ESP_ERROR_CHECK(ledc_channel_config(&dcf77_100tx));
298 ESP_ERROR_CHECK(ledc_channel_config(&dcf77_15tx));
299 ESP_LOGI(TAG, "DCF77 antennas at pins %d and %d", CONFIG_ANTENNA_100_PIN, CONFIG_ANTENNA_15_PIN);
300 ledc_set_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0, 0);
301 ledc_update_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_0);
302 ledc_set_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_1, 0);
303 ledc_update_duty(LEDC_LOW_SPEED_MODE, LEDC_CHANNEL_1);
246 304
247 for (int i = 0; i < 59; i++) 305 for (int i = 0; i < 59; i++)
248 impulseArray[i] = 1; 306 impulseArray[i] = 1;
249 impulseArray[59] = impulseArray[60] = 0; 307 impulseArray[59] = impulseArray[60] = 0;
250 308

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