amiro-os / unittests / lld / src / ut_lld_adc.c @ 165bcce7
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1 | e545e620 | Thomas Schöpping | /*
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2 | AMiRo-OS is an operating system designed for the Autonomous Mini Robot (AMiRo) platform.
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3 | 84f0ce9e | Thomas Schöpping | Copyright (C) 2016..2019 Thomas Schöpping et al.
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4 | e545e620 | Thomas Schöpping | |
5 | This program is free software: you can redistribute it and/or modify
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6 | it under the terms of the GNU General Public License as published by
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7 | the Free Software Foundation, either version 3 of the License, or
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8 | (at your option) any later version.
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9 | |||
10 | This program is distributed in the hope that it will be useful,
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | GNU General Public License for more details.
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14 | |||
15 | You should have received a copy of the GNU General Public License
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16 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 | */
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18 | |||
19 | 3940ba8a | Thomas Schöpping | #include <amiroos.h> |
20 | 2a4dbf93 | Thomas Schöpping | #include <ut_lld_adc.h> |
21 | e545e620 | Thomas Schöpping | |
22 | 165bcce7 | Thomas Schöpping | #if ((AMIROOS_CFG_TESTS_ENABLE == TRUE) && defined(BOARD_POWERMANAGEMENT_1_1) && (HAL_USE_ADC == TRUE)) || defined(__DOXYGEN__)
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23 | e545e620 | Thomas Schöpping | |
24 | f3ac1c96 | Thomas Schöpping | /******************************************************************************/
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25 | /* LOCAL DEFINITIONS */
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26 | /******************************************************************************/
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27 | e545e620 | Thomas Schöpping | |
28 | /**
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29 | * @brief Event mask of the ADC analog watchdog event.
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30 | */
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31 | #define _adcWdgEventmask EVENT_MASK(31) |
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32 | |||
33 | /**
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34 | * @brief ADC analog watchdog threshold (9.0V).
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35 | */
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36 | #define _adcWdgThreshold (uint16_t)(9.0f / 5.0f / 3.3f * ((1 << 12) - 1) + 0.5f) |
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37 | |||
38 | f3ac1c96 | Thomas Schöpping | /******************************************************************************/
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39 | /* EXPORTED VARIABLES */
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40 | /******************************************************************************/
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41 | |||
42 | /******************************************************************************/
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43 | /* LOCAL TYPES */
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44 | /******************************************************************************/
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45 | |||
46 | /******************************************************************************/
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47 | /* LOCAL VARIABLES */
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48 | /******************************************************************************/
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49 | |||
50 | e545e620 | Thomas Schöpping | /**
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51 | * @brief Pointer to the thread listening for an ADC analog watchdog event.
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52 | */
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53 | static thread_t* _listener;
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54 | |||
55 | f3ac1c96 | Thomas Schöpping | /******************************************************************************/
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56 | /* LOCAL FUNCTIONS */
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57 | /******************************************************************************/
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58 | |||
59 | e545e620 | Thomas Schöpping | /**
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60 | * @brief Helper function to convert ADC sample value to volts.
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61 | *
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62 | * @param[in] adc ADC sample value.
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63 | *
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64 | * @return Converted value in volts.
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65 | */
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66 | static inline float _adc2volt(adcsample_t adc) { |
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67 | return (float)adc / ((1 << 12) - 1) * 3.3f * 5.0f; |
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68 | } |
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69 | |||
70 | /**
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71 | * @brief ADC analog watchdog callback function.
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72 | *
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73 | * @param[in] adcp ADC driver.
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74 | * @param[in] err ADC error value.
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75 | */
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76 | static void _adcAwdCb(ADCDriver* adcp, adcerror_t err) |
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77 | { |
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78 | (void)adcp;
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79 | |||
80 | if (err == ADC_ERR_WATCHDOG) {
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81 | chSysLockFromISR(); |
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82 | if (_listener != NULL) { |
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83 | chEvtSignalI(_listener, _adcWdgEventmask); |
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84 | _listener = NULL;
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85 | } |
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86 | chSysUnlockFromISR(); |
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87 | } |
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88 | |||
89 | return;
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90 | } |
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91 | |||
92 | f3ac1c96 | Thomas Schöpping | /******************************************************************************/
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93 | /* EXPORTED FUNCTIONS */
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94 | /******************************************************************************/
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95 | |||
96 | e545e620 | Thomas Schöpping | /**
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97 | * @brief ADC unit test function.
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98 | *
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99 | * @param[in] stream Stream for input/output.
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100 | * @param[in] ut Unit test object.
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101 | *
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102 | * @return Unit test result value.
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103 | */
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104 | aos_utresult_t utAdcFunc(BaseSequentialStream* stream, aos_unittest_t* ut) |
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105 | { |
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106 | aosDbgCheck(ut->data != NULL && ((ut_adcdata_t*)(ut->data))->driver != NULL && ((ut_adcdata_t*)(ut->data))->convgroup != NULL); |
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107 | |||
108 | // local variables
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109 | aos_utresult_t result = {0, 0}; |
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110 | adcsample_t buffer[1] = {0}; |
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111 | bool wdgpassed = false; |
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112 | eventmask_t eventmask = 0;
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113 | ADCConversionGroup conversionGroup = *(((ut_adcdata_t*)(ut->data))->convgroup); |
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114 | conversionGroup.circular = true;
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115 | conversionGroup.end_cb = NULL;
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116 | conversionGroup.end_cb = NULL;
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117 | conversionGroup.htr = ADC_HTR_HT; |
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118 | conversionGroup.ltr = 0;
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119 | |||
120 | chprintf(stream, "reading voltage for five seconds...\n");
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121 | adcStartConversion(((ut_adcdata_t*)(ut->data))->driver, &conversionGroup, buffer, 1);
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122 | for (uint8_t s = 0; s < 5; ++s) { |
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123 | aosThdSSleep(1);
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124 | chprintf(stream, "\tVSYS = %fV\n", _adc2volt(buffer[0])); |
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125 | } |
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126 | adcStopConversion(((ut_adcdata_t*)(ut->data))->driver); |
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127 | if (buffer[0] != 0) { |
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128 | aosUtPassed(stream, &result); |
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129 | } else {
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130 | aosUtFailed(stream, &result); |
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131 | } |
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132 | |||
133 | chprintf(stream, "detecting external power...\n");
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134 | conversionGroup.error_cb = _adcAwdCb; |
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135 | conversionGroup.htr = _adcWdgThreshold; |
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136 | conversionGroup.ltr = _adcWdgThreshold; |
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137 | _listener = chThdGetSelfX(); |
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138 | adcStartConversion(((ut_adcdata_t*)(ut->data))->driver, &conversionGroup, buffer, 1);
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139 | 1e5f7648 | Thomas Schöpping | eventmask = chEvtWaitOneTimeout(_adcWdgEventmask, chTimeS2I(5));
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140 | e545e620 | Thomas Schöpping | if (eventmask == _adcWdgEventmask) {
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141 | aosUtPassedMsg(stream, &result, "%fV %c 9V\n", _adc2volt(buffer[0]), (buffer[0] > _adcWdgThreshold) ? '>' : '<'); |
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142 | wdgpassed = true;
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143 | } else {
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144 | adcStopConversion(((ut_adcdata_t*)(ut->data))->driver); |
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145 | aosUtFailed(stream, &result); |
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146 | wdgpassed = false;
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147 | } |
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148 | |||
149 | if (wdgpassed) {
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150 | for (uint8_t i = 0; i < 2; ++i) { |
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151 | if (buffer[0] > _adcWdgThreshold) { |
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152 | chprintf(stream, "Remove external power within ten seconds.\n");
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153 | conversionGroup.htr = ADC_HTR_HT; |
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154 | conversionGroup.ltr = _adcWdgThreshold; |
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155 | } else {
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156 | chprintf(stream, "Connect external power within ten seconds.\n");
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157 | conversionGroup.htr = _adcWdgThreshold; |
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158 | conversionGroup.ltr = 0;
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159 | } |
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160 | aosThdMSleep(100); // wait some time so the ADC wil trigger again immediately due to noise |
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161 | _listener = chThdGetSelfX(); |
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162 | adcStartConversion(((ut_adcdata_t*)(ut->data))->driver, &conversionGroup, buffer, 1);
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163 | 1e5f7648 | Thomas Schöpping | eventmask = chEvtWaitOneTimeout(_adcWdgEventmask, chTimeS2I(10));
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164 | e545e620 | Thomas Schöpping | if (eventmask == _adcWdgEventmask) {
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165 | aosUtPassedMsg(stream, &result, "%fV %c 9V\n", _adc2volt(buffer[0]), (buffer[0] > _adcWdgThreshold) ? '>' : '<'); |
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166 | } else {
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167 | adcStopConversion(((ut_adcdata_t*)(ut->data))->driver); |
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168 | aosUtFailed(stream, &result); |
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169 | break;
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170 | } |
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171 | } |
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172 | } |
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173 | |||
174 | return result;
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175 | } |
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176 | |||
177 | 165bcce7 | Thomas Schöpping | #endif /* (AMIROOS_CFG_TESTS_ENABLE == TRUE) && defined(BOARD_POWERMANAGEMENT_1_1) && (HAL_USE_ADC == TRUE) */ |