Helmut Tschemernjak / SX1276GenericLib

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Arduino-mbed-APIs/arduino-esp32.cpp@104:b5183e348f9d, 2017-11-21 (annotated)

Committer:
Helmut Tschemernjak
Date:
Tue Nov 21 16:59:28 2017 +0100
Revision:
104:b5183e348f9d
Parent:
103:59930a715bf8
Child:
105:6e6d141c3da8
Added better CPUID code, now the Mac address and the MCU revision

is being used.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Helmut Tschemernjak 97:3d5d489206aa 1 /*
Helmut Tschemernjak 97:3d5d489206aa 2 * The file is Licensed under the Apache License, Version 2.0
Helmut Tschemernjak 97:3d5d489206aa 3 * (c) 2017 Helmut Tschemernjak
Helmut Tschemernjak 97:3d5d489206aa 4 * 30826 Garbsen (Hannover) Germany
Helmut Tschemernjak 97:3d5d489206aa 5 */
Helmut Tschemernjak 97:3d5d489206aa 6
Helmut Tschemernjak 97:3d5d489206aa 7 #ifdef ARDUINO
Helmut Tschemernjak 97:3d5d489206aa 8
Helmut Tschemernjak 97:3d5d489206aa 9 using namespace std;
Helmut Tschemernjak 97:3d5d489206aa 10
Helmut Tschemernjak 97:3d5d489206aa 11 #include "arduino-mbed.h"
Helmut Tschemernjak 97:3d5d489206aa 12 #include "arduino-util.h"
Helmut Tschemernjak 101:50377edb21c6 13 #include <time.h>
Helmut Tschemernjak 97:3d5d489206aa 14
Helmut Tschemernjak 104:b5183e348f9d 15 #if defined(ARDUINO_ARCH_ESP32)
Helmut Tschemernjak 97:3d5d489206aa 16
Helmut Tschemernjak 104:b5183e348f9d 17 #include "soc/efuse_reg.h"
Helmut Tschemernjak 104:b5183e348f9d 18
Helmut Tschemernjak 104:b5183e348f9d 19
Helmut Tschemernjak 97:3d5d489206aa 20 /*
Helmut Tschemernjak 97:3d5d489206aa 21 * ARDUINO_ARCH_ESP32 ESP32 development board
Helmut Tschemernjak 97:3d5d489206aa 22 * Heltec ESP32 boards
Helmut Tschemernjak 97:3d5d489206aa 23 */
Helmut Tschemernjak 97:3d5d489206aa 24
Helmut Tschemernjak 104:b5183e348f9d 25 int CPUID(uint8_t *buf, int maxSize, uint32_t xorval)
Helmut Tschemernjak 97:3d5d489206aa 26 {
Helmut Tschemernjak 104:b5183e348f9d 27 uint8_t uuid[16];
Helmut Tschemernjak 104:b5183e348f9d 28 int f1 = 0x6aa0f551; // EFUSE_BLK0_RDATA1_REG address
Helmut Tschemernjak 104:b5183e348f9d 29 int f2 = 0x6aa0f55d; // EFUSE_BLK0_RDATA2_REG address
Helmut Tschemernjak 97:3d5d489206aa 30
Helmut Tschemernjak 104:b5183e348f9d 31 if (maxSize >= sizeof(uuid)) {
Helmut Tschemernjak 104:b5183e348f9d 32 int fa = f1 ^ xorval;
Helmut Tschemernjak 104:b5183e348f9d 33 int fb = f2 ^ xorval;
Helmut Tschemernjak 104:b5183e348f9d 34
Helmut Tschemernjak 104:b5183e348f9d 35 uint32_t mac_low = REG_READ(fa);
Helmut Tschemernjak 104:b5183e348f9d 36 uint32_t mac_high = REG_READ(fb);
Helmut Tschemernjak 104:b5183e348f9d 37
Helmut Tschemernjak 104:b5183e348f9d 38 uuid[0] = mac_high >> 8;
Helmut Tschemernjak 104:b5183e348f9d 39 uuid[1] = mac_high;
Helmut Tschemernjak 104:b5183e348f9d 40 uuid[2] = mac_low >> 24;
Helmut Tschemernjak 104:b5183e348f9d 41 uuid[3] = mac_low >> 16;
Helmut Tschemernjak 104:b5183e348f9d 42 uuid[4] = mac_low >> 8;
Helmut Tschemernjak 104:b5183e348f9d 43 uuid[5] = mac_low;
Helmut Tschemernjak 104:b5183e348f9d 44
Helmut Tschemernjak 104:b5183e348f9d 45 uuid[6] = uuid[0] ^ 0x16;
Helmut Tschemernjak 104:b5183e348f9d 46 uuid[7] = uuid[1] ^ 0x27;
Helmut Tschemernjak 104:b5183e348f9d 47 uuid[8] = uuid[2] ^ 0x38;
Helmut Tschemernjak 104:b5183e348f9d 48 uuid[9] = uuid[4] ^ 0x49;
Helmut Tschemernjak 104:b5183e348f9d 49 uuid[10] = uuid[5] ^ 0x50;
Helmut Tschemernjak 104:b5183e348f9d 50 uuid[11] = uuid[5] ^ 0x61;
Helmut Tschemernjak 104:b5183e348f9d 51
Helmut Tschemernjak 104:b5183e348f9d 52 uuid[12] = ESP.getChipRevision();
Helmut Tschemernjak 104:b5183e348f9d 53 uuid[13] = 0x12;
Helmut Tschemernjak 104:b5183e348f9d 54 uuid[14] = 0x34;
Helmut Tschemernjak 104:b5183e348f9d 55 uuid[15] = 0x56;
Helmut Tschemernjak 104:b5183e348f9d 56 memcpy(buf, &uuid[0], sizeof(uuid));
Helmut Tschemernjak 104:b5183e348f9d 57 return sizeof(uuid);
Helmut Tschemernjak 97:3d5d489206aa 58 }
Helmut Tschemernjak 97:3d5d489206aa 59 return 0;
Helmut Tschemernjak 97:3d5d489206aa 60 }
Helmut Tschemernjak 97:3d5d489206aa 61
Helmut Tschemernjak 97:3d5d489206aa 62 /*
Helmut Tschemernjak 97:3d5d489206aa 63 * see esp32-hal-timer.h is automatically included from:
Helmut Tschemernjak 97:3d5d489206aa 64 * Arduino15/packages/arduino/hardware/espressif/esp32/cores/esp32
Helmut Tschemernjak 97:3d5d489206aa 65 */
Helmut Tschemernjak 97:3d5d489206aa 66 static void initTimer(int timerID);
Helmut Tschemernjak 97:3d5d489206aa 67 void IRAM_ATTR onTimer(void);
Helmut Tschemernjak 97:3d5d489206aa 68 /*
Helmut Tschemernjak 103:59930a715bf8 69 * The Atmel ESP32 has four 64-bit timer.
Helmut Tschemernjak 103:59930a715bf8 70 * At present the solution uses two timers, one for counting ticks,
Helmut Tschemernjak 103:59930a715bf8 71 * a second for setting alarms. This is required for the rev-0 ESP
Helmut Tschemernjak 103:59930a715bf8 72 *
Helmut Tschemernjak 103:59930a715bf8 73 * For the rev. 1 ESP a single timer will work for counting as well for
Helmut Tschemernjak 103:59930a715bf8 74 * setting the alarm via timerAlarmWrite(timer, timerRead(timer) + 1000000, false)
Helmut Tschemernjak 103:59930a715bf8 75 * once we support only ESP32-R1 the timer functions can be optimized to use only a
Helmut Tschemernjak 103:59930a715bf8 76 * single 64-bit timer.
Helmut Tschemernjak 97:3d5d489206aa 77 */
Helmut Tschemernjak 97:3d5d489206aa 78 struct TIMER_config {
Helmut Tschemernjak 97:3d5d489206aa 79 int timerID;
Helmut Tschemernjak 97:3d5d489206aa 80 hw_timer_t *timer;
Helmut Tschemernjak 97:3d5d489206aa 81 uint8_t nbits;
Helmut Tschemernjak 97:3d5d489206aa 82 } Timer_data[] {
Helmut Tschemernjak 97:3d5d489206aa 83 { 0, NULL, 32 },
Helmut Tschemernjak 97:3d5d489206aa 84 { 1, NULL, 32 },
Helmut Tschemernjak 97:3d5d489206aa 85 { 2, NULL, 32 },
Helmut Tschemernjak 103:59930a715bf8 86 { 3, NULL, 32 },
Helmut Tschemernjak 97:3d5d489206aa 87 { -1, NULL, 0 }
Helmut Tschemernjak 97:3d5d489206aa 88 };
Helmut Tschemernjak 97:3d5d489206aa 89
Helmut Tschemernjak 97:3d5d489206aa 90 /*
Helmut Tschemernjak 97:3d5d489206aa 91 * We preferably use ESP32 timers because it supports 64-bit counters
Helmut Tschemernjak 97:3d5d489206aa 92 */
Helmut Tschemernjak 97:3d5d489206aa 93 #define USE_TIMER_TIMEOUT 0 // 0, 1, 2 (see ESP32 docs)
Helmut Tschemernjak 97:3d5d489206aa 94 #define USE_TIMER_TICKER 1 // 0, 1, 2 (see ESP32 docs)
Helmut Tschemernjak 97:3d5d489206aa 95 #define MAX_TIMERS 3
Helmut Tschemernjak 101:50377edb21c6 96 #define TIMER_DIVIDER 80
Helmut Tschemernjak 101:50377edb21c6 97 #define TIMER_CLOCK 80
Helmut Tschemernjak 97:3d5d489206aa 98
Helmut Tschemernjak 97:3d5d489206aa 99 /*
Helmut Tschemernjak 97:3d5d489206aa 100 * Calculation of ticks see timerBegin divider
Helmut Tschemernjak 97:3d5d489206aa 101 */
Helmut Tschemernjak 97:3d5d489206aa 102 #define NS_PER_CLOCK_CPU 1000 // ns secs per clock
Helmut Tschemernjak 97:3d5d489206aa 103 #define NS_PER_CLOCK_RTC 1000 // ns secs per clock
Helmut Tschemernjak 97:3d5d489206aa 104 #define TIMER_INFINITE 0x7fffffffffffffff // max esp alarm timeout
Helmut Tschemernjak 97:3d5d489206aa 105 #define NS_PER_CLOCK NS_PER_CLOCK_RTC
Helmut Tschemernjak 97:3d5d489206aa 106
Helmut Tschemernjak 97:3d5d489206aa 107
Helmut Tschemernjak 97:3d5d489206aa 108 const char *GetTimerName(int timerID)
Helmut Tschemernjak 97:3d5d489206aa 109 {
Helmut Tschemernjak 97:3d5d489206aa 110 switch(timerID) {
Helmut Tschemernjak 97:3d5d489206aa 111 case USE_TIMER_TIMEOUT:
Helmut Tschemernjak 97:3d5d489206aa 112 return "TIMEOUT";
Helmut Tschemernjak 97:3d5d489206aa 113 break;
Helmut Tschemernjak 97:3d5d489206aa 114 case USE_TIMER_TICKER:
Helmut Tschemernjak 97:3d5d489206aa 115 return "TICKER";
Helmut Tschemernjak 97:3d5d489206aa 116 break;
Helmut Tschemernjak 97:3d5d489206aa 117 default:
Helmut Tschemernjak 97:3d5d489206aa 118 return "Uknown";
Helmut Tschemernjak 97:3d5d489206aa 119 }
Helmut Tschemernjak 97:3d5d489206aa 120 }
Helmut Tschemernjak 97:3d5d489206aa 121
Helmut Tschemernjak 97:3d5d489206aa 122 /* ----------------- TICKER TIMER CODE ----------------------*/
Helmut Tschemernjak 97:3d5d489206aa 123
Helmut Tschemernjak 97:3d5d489206aa 124 /*
Helmut Tschemernjak 97:3d5d489206aa 125 * The global ns_counter contains the time in ns from the last time
Helmut Tschemernjak 97:3d5d489206aa 126 * the counter has been wrapped. It cannot be used directly because the
Helmut Tschemernjak 97:3d5d489206aa 127 * current counter has to be added fore using it. Use instead
Helmut Tschemernjak 97:3d5d489206aa 128 * ns_getTicker(), us_ ns_getTicker(), ms_getTicker()
Helmut Tschemernjak 97:3d5d489206aa 129 */
Helmut Tschemernjak 97:3d5d489206aa 130
Helmut Tschemernjak 97:3d5d489206aa 131 static volatile bool initTickerDone = false;
Helmut Tschemernjak 97:3d5d489206aa 132
Helmut Tschemernjak 97:3d5d489206aa 133 uint64_t ns_getTicker(void)
Helmut Tschemernjak 97:3d5d489206aa 134 {
Helmut Tschemernjak 97:3d5d489206aa 135 int timerID = Timer_data[USE_TIMER_TICKER].timerID;
Helmut Tschemernjak 97:3d5d489206aa 136
Helmut Tschemernjak 97:3d5d489206aa 137 if (!initTickerDone) {
Helmut Tschemernjak 97:3d5d489206aa 138 initTimer(timerID);
Helmut Tschemernjak 97:3d5d489206aa 139 initTickerDone = true;
Helmut Tschemernjak 97:3d5d489206aa 140 }
Helmut Tschemernjak 97:3d5d489206aa 141
Helmut Tschemernjak 97:3d5d489206aa 142 hw_timer_t *timer = Timer_data[USE_TIMER_TICKER].timer;
Helmut Tschemernjak 97:3d5d489206aa 143 uint64_t ns = timerRead(timer);
Helmut Tschemernjak 97:3d5d489206aa 144 uint16_t div = timerGetDivider(timer);
Helmut Tschemernjak 97:3d5d489206aa 145 ns *= div; // get to the real clocks
Helmut Tschemernjak 101:50377edb21c6 146 ns *= 1000; // convert micros to NS.
Helmut Tschemernjak 101:50377edb21c6 147 ns /= TIMER_CLOCK; // 80 MHz clock, convert to micro seconds
Helmut Tschemernjak 97:3d5d489206aa 148
Helmut Tschemernjak 97:3d5d489206aa 149 return ns;
Helmut Tschemernjak 97:3d5d489206aa 150 }
Helmut Tschemernjak 97:3d5d489206aa 151
Helmut Tschemernjak 97:3d5d489206aa 152
Helmut Tschemernjak 97:3d5d489206aa 153 /* ----------------- SUPPORT CODE FOR TCC TIMERS----------------------*/
Helmut Tschemernjak 97:3d5d489206aa 154
Helmut Tschemernjak 97:3d5d489206aa 155 static volatile bool initTimerDone = false;
Helmut Tschemernjak 97:3d5d489206aa 156
Helmut Tschemernjak 97:3d5d489206aa 157 static void initTimer(int timerID)
Helmut Tschemernjak 97:3d5d489206aa 158 {
Helmut Tschemernjak 97:3d5d489206aa 159 //dprintf("initTimer: %s", GetTimerName(timerID));
Helmut Tschemernjak 97:3d5d489206aa 160 struct TIMER_config *cp = &Timer_data[timerID];
Helmut Tschemernjak 97:3d5d489206aa 161 if (timerID > MAX_TIMERS-1)
Helmut Tschemernjak 97:3d5d489206aa 162 return;
Helmut Tschemernjak 97:3d5d489206aa 163
Helmut Tschemernjak 101:50377edb21c6 164 cp->timer = timerBegin(timerID, TIMER_DIVIDER, true);
Helmut Tschemernjak 97:3d5d489206aa 165 timerWrite(cp->timer, 0);
Helmut Tschemernjak 101:50377edb21c6 166 if (timerID == USE_TIMER_TICKER) {
Helmut Tschemernjak 101:50377edb21c6 167 time_t t = time(NULL);
Helmut Tschemernjak 101:50377edb21c6 168 if (t > 0) {
Helmut Tschemernjak 101:50377edb21c6 169 struct tm mytm;
Helmut Tschemernjak 101:50377edb21c6 170 uint64_t tstart;
Helmut Tschemernjak 101:50377edb21c6 171
Helmut Tschemernjak 101:50377edb21c6 172 localtime_r(&t, &mytm);
Helmut Tschemernjak 101:50377edb21c6 173 tstart = mytm.tm_sec + (mytm.tm_min * 60) + (mytm.tm_hour * 3600);
Helmut Tschemernjak 101:50377edb21c6 174 tstart *= 1000000;
Helmut Tschemernjak 101:50377edb21c6 175 tstart *= TIMER_CLOCK;
Helmut Tschemernjak 101:50377edb21c6 176 tstart /= TIMER_DIVIDER;
Helmut Tschemernjak 101:50377edb21c6 177 timerWrite(cp->timer, tstart);
Helmut Tschemernjak 101:50377edb21c6 178 }
Helmut Tschemernjak 97:3d5d489206aa 179 timerStart(cp->timer);
Helmut Tschemernjak 101:50377edb21c6 180 } else {
Helmut Tschemernjak 97:3d5d489206aa 181 timerAttachInterrupt(cp->timer, &onTimer, true);
Helmut Tschemernjak 97:3d5d489206aa 182 timerAlarmWrite(cp->timer, TIMER_INFINITE, true);
Helmut Tschemernjak 97:3d5d489206aa 183 timerAlarmEnable(cp->timer);
Helmut Tschemernjak 97:3d5d489206aa 184 timerStart(cp->timer);
Helmut Tschemernjak 97:3d5d489206aa 185 }
Helmut Tschemernjak 97:3d5d489206aa 186 /*
Helmut Tschemernjak 97:3d5d489206aa 187 * somehow the timer needs some time to initalize before being used.
Helmut Tschemernjak 97:3d5d489206aa 188 * otherwise it will not issue any alarms
Helmut Tschemernjak 97:3d5d489206aa 189 * This affects only ESP32 rev 0
Helmut Tschemernjak 97:3d5d489206aa 190 */
Helmut Tschemernjak 101:50377edb21c6 191 if (ESP.getChipRevision() == 0)
Helmut Tschemernjak 101:50377edb21c6 192 delay(20);
Helmut Tschemernjak 97:3d5d489206aa 193 }
Helmut Tschemernjak 97:3d5d489206aa 194
Helmut Tschemernjak 97:3d5d489206aa 195
Helmut Tschemernjak 97:3d5d489206aa 196 TIMER_REF *getTimeoutTimer(void)
Helmut Tschemernjak 97:3d5d489206aa 197 {
Helmut Tschemernjak 97:3d5d489206aa 198 struct TIMER_config *cp = &Timer_data[USE_TIMER_TIMEOUT];
Helmut Tschemernjak 97:3d5d489206aa 199
Helmut Tschemernjak 97:3d5d489206aa 200 return &cp->timerID;
Helmut Tschemernjak 97:3d5d489206aa 201 }
Helmut Tschemernjak 97:3d5d489206aa 202
Helmut Tschemernjak 97:3d5d489206aa 203
Helmut Tschemernjak 97:3d5d489206aa 204 void stopTimer(int *timerIDPtr)
Helmut Tschemernjak 97:3d5d489206aa 205 {
Helmut Tschemernjak 97:3d5d489206aa 206 struct TIMER_config *cp = &Timer_data[*timerIDPtr];
Helmut Tschemernjak 97:3d5d489206aa 207 if (*timerIDPtr > MAX_TIMERS-1)
Helmut Tschemernjak 97:3d5d489206aa 208 return;
Helmut Tschemernjak 97:3d5d489206aa 209
Helmut Tschemernjak 97:3d5d489206aa 210 if (cp->timer)
Helmut Tschemernjak 97:3d5d489206aa 211 timerAlarmWrite(cp->timer, TIMER_INFINITE, true);
Helmut Tschemernjak 97:3d5d489206aa 212 }
Helmut Tschemernjak 97:3d5d489206aa 213
Helmut Tschemernjak 97:3d5d489206aa 214
Helmut Tschemernjak 97:3d5d489206aa 215 /* ----------------- TIMEOUT TIMER CODE ----------------------*/
Helmut Tschemernjak 97:3d5d489206aa 216
Helmut Tschemernjak 97:3d5d489206aa 217 void startTimer(int *timerIDPtr, uint64_t delay_ns)
Helmut Tschemernjak 97:3d5d489206aa 218 {
Helmut Tschemernjak 97:3d5d489206aa 219 if (!initTimerDone) {
Helmut Tschemernjak 97:3d5d489206aa 220 initTimer(*timerIDPtr); // initial setup with stopped timer
Helmut Tschemernjak 97:3d5d489206aa 221 initTimerDone = true;
Helmut Tschemernjak 97:3d5d489206aa 222 }
Helmut Tschemernjak 97:3d5d489206aa 223
Helmut Tschemernjak 97:3d5d489206aa 224 struct TIMER_config *cp = &Timer_data[*timerIDPtr];
Helmut Tschemernjak 97:3d5d489206aa 225 if (*timerIDPtr > MAX_TIMERS-1)
Helmut Tschemernjak 97:3d5d489206aa 226 return;
Helmut Tschemernjak 97:3d5d489206aa 227 uint64_t usecs = delay_ns/1000;
Helmut Tschemernjak 97:3d5d489206aa 228 if (delay_ns == 1) // immediate timeout
Helmut Tschemernjak 97:3d5d489206aa 229 usecs = 1;
Helmut Tschemernjak 97:3d5d489206aa 230 timerAlarmWrite(cp->timer, usecs, true);
Helmut Tschemernjak 97:3d5d489206aa 231 // dprintf("startTimer: %s in %d us", GetTimerName(*timerIDPtr), usecs);
Helmut Tschemernjak 97:3d5d489206aa 232 }
Helmut Tschemernjak 97:3d5d489206aa 233
Helmut Tschemernjak 97:3d5d489206aa 234 /*
Helmut Tschemernjak 97:3d5d489206aa 235 * The onTimer is only called for every Timeout expired timer
Helmut Tschemernjak 97:3d5d489206aa 236 */
Helmut Tschemernjak 97:3d5d489206aa 237 void IRAM_ATTR onTimer(void) {
Helmut Tschemernjak 97:3d5d489206aa 238 //dprintf("onTimer int called");
Helmut Tschemernjak 97:3d5d489206aa 239 uint64_t nsecs = ns_getTicker();
Helmut Tschemernjak 97:3d5d489206aa 240
Helmut Tschemernjak 97:3d5d489206aa 241 for (int i = 0; i < MAX_TIMEOUTS-1; i++) {
Helmut Tschemernjak 97:3d5d489206aa 242 struct TimeoutVector *tvp = &TimeOuts[i];
Helmut Tschemernjak 97:3d5d489206aa 243 if (tvp->timer && nsecs >= tvp->timer->_timeout) {
Helmut Tschemernjak 97:3d5d489206aa 244 Timeout *saveTimer = tvp->timer;
Helmut Tschemernjak 97:3d5d489206aa 245 tvp->timer = NULL;
Helmut Tschemernjak 97:3d5d489206aa 246 Timeout::_irq_handler(saveTimer);
Helmut Tschemernjak 97:3d5d489206aa 247 }
Helmut Tschemernjak 97:3d5d489206aa 248 }
Helmut Tschemernjak 97:3d5d489206aa 249 /*
Helmut Tschemernjak 97:3d5d489206aa 250 * we need to restart the timer for remaining interrupts
Helmut Tschemernjak 97:3d5d489206aa 251 * Another reason is that we stopped this counter, in case there are
Helmut Tschemernjak 97:3d5d489206aa 252 * remaining counts, we need to re-schedule the counter.
Helmut Tschemernjak 97:3d5d489206aa 253 */
Helmut Tschemernjak 97:3d5d489206aa 254 Timeout::restart();
Helmut Tschemernjak 97:3d5d489206aa 255 }
Helmut Tschemernjak 97:3d5d489206aa 256
Helmut Tschemernjak 97:3d5d489206aa 257
Helmut Tschemernjak 97:3d5d489206aa 258 /* ----------------- ESP32 sleep() and deepsleep() code ----------------------*/
Helmut Tschemernjak 97:3d5d489206aa 259
Helmut Tschemernjak 97:3d5d489206aa 260 void sleep(void)
Helmut Tschemernjak 97:3d5d489206aa 261 {
Helmut Tschemernjak 97:3d5d489206aa 262 asm("waiti 0");
Helmut Tschemernjak 97:3d5d489206aa 263 }
Helmut Tschemernjak 97:3d5d489206aa 264
Helmut Tschemernjak 97:3d5d489206aa 265 /*
Helmut Tschemernjak 97:3d5d489206aa 266 * TODO
Helmut Tschemernjak 97:3d5d489206aa 267 * The ESP32 deepsleep can be enhanced to bring the ESP into low power mode.
Helmut Tschemernjak 97:3d5d489206aa 268 */
Helmut Tschemernjak 97:3d5d489206aa 269
Helmut Tschemernjak 97:3d5d489206aa 270 void deepsleep(void)
Helmut Tschemernjak 97:3d5d489206aa 271 {
Helmut Tschemernjak 101:50377edb21c6 272 // Light Sleep
Helmut Tschemernjak 97:3d5d489206aa 273 asm("waiti 0");
Helmut Tschemernjak 97:3d5d489206aa 274 }
Helmut Tschemernjak 97:3d5d489206aa 275
Helmut Tschemernjak 97:3d5d489206aa 276 #endif // ESp32 Timer, sleep, etc.
Helmut Tschemernjak 97:3d5d489206aa 277
Helmut Tschemernjak 97:3d5d489206aa 278 #endif // ARDUINO