amiro-os / unittests / lld / src / ut_lld_adc.c @ 732a4657
History | View | Annotate | Download (6.408 KB)
1 | e545e620 | Thomas Schöpping | /*
|
---|---|---|---|
2 | AMiRo-OS is an operating system designed for the Autonomous Mini Robot (AMiRo) platform.
|
||
3 | 84f0ce9e | Thomas Schöpping | Copyright (C) 2016..2019 Thomas Schöpping et al.
|
4 | e545e620 | Thomas Schöpping | |
5 | This program is free software: you can redistribute it and/or modify
|
||
6 | it under the terms of the GNU General Public License as published by
|
||
7 | the Free Software Foundation, either version 3 of the License, or
|
||
8 | (at your option) any later version.
|
||
9 | |||
10 | This program is distributed in the hope that it will be useful,
|
||
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
13 | GNU General Public License for more details.
|
||
14 | |||
15 | You should have received a copy of the GNU General Public License
|
||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
17 | */
|
||
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__)
|
23 | e545e620 | Thomas Schöpping | |
24 | f3ac1c96 | Thomas Schöpping | /******************************************************************************/
|
25 | /* LOCAL DEFINITIONS */
|
||
26 | /******************************************************************************/
|
||
27 | e545e620 | Thomas Schöpping | |
28 | /**
|
||
29 | * @brief Event mask of the ADC analog watchdog event.
|
||
30 | */
|
||
31 | #define _adcWdgEventmask EVENT_MASK(31) |
||
32 | |||
33 | /**
|
||
34 | * @brief ADC analog watchdog threshold (9.0V).
|
||
35 | */
|
||
36 | #define _adcWdgThreshold (uint16_t)(9.0f / 5.0f / 3.3f * ((1 << 12) - 1) + 0.5f) |
||
37 | |||
38 | f3ac1c96 | Thomas Schöpping | /******************************************************************************/
|
39 | /* EXPORTED VARIABLES */
|
||
40 | /******************************************************************************/
|
||
41 | |||
42 | /******************************************************************************/
|
||
43 | /* LOCAL TYPES */
|
||
44 | /******************************************************************************/
|
||
45 | |||
46 | /******************************************************************************/
|
||
47 | /* LOCAL VARIABLES */
|
||
48 | /******************************************************************************/
|
||
49 | |||
50 | e545e620 | Thomas Schöpping | /**
|
51 | * @brief Pointer to the thread listening for an ADC analog watchdog event.
|
||
52 | */
|
||
53 | static thread_t* _listener;
|
||
54 | |||
55 | f3ac1c96 | Thomas Schöpping | /******************************************************************************/
|
56 | /* LOCAL FUNCTIONS */
|
||
57 | /******************************************************************************/
|
||
58 | |||
59 | e545e620 | Thomas Schöpping | /**
|
60 | * @brief Helper function to convert ADC sample value to volts.
|
||
61 | *
|
||
62 | * @param[in] adc ADC sample value.
|
||
63 | *
|
||
64 | * @return Converted value in volts.
|
||
65 | */
|
||
66 | static inline float _adc2volt(adcsample_t adc) { |
||
67 | return (float)adc / ((1 << 12) - 1) * 3.3f * 5.0f; |
||
68 | } |
||
69 | |||
70 | /**
|
||
71 | * @brief ADC analog watchdog callback function.
|
||
72 | *
|
||
73 | * @param[in] adcp ADC driver.
|
||
74 | * @param[in] err ADC error value.
|
||
75 | */
|
||
76 | static void _adcAwdCb(ADCDriver* adcp, adcerror_t err) |
||
77 | { |
||
78 | (void)adcp;
|
||
79 | |||
80 | if (err == ADC_ERR_WATCHDOG) {
|
||
81 | chSysLockFromISR(); |
||
82 | if (_listener != NULL) { |
||
83 | chEvtSignalI(_listener, _adcWdgEventmask); |
||
84 | _listener = NULL;
|
||
85 | } |
||
86 | chSysUnlockFromISR(); |
||
87 | } |
||
88 | |||
89 | return;
|
||
90 | } |
||
91 | |||
92 | f3ac1c96 | Thomas Schöpping | /******************************************************************************/
|
93 | /* EXPORTED FUNCTIONS */
|
||
94 | /******************************************************************************/
|
||
95 | |||
96 | e545e620 | Thomas Schöpping | /**
|
97 | * @brief ADC unit test function.
|
||
98 | *
|
||
99 | * @param[in] stream Stream for input/output.
|
||
100 | * @param[in] ut Unit test object.
|
||
101 | *
|
||
102 | * @return Unit test result value.
|
||
103 | */
|
||
104 | aos_utresult_t utAdcFunc(BaseSequentialStream* stream, aos_unittest_t* ut) |
||
105 | { |
||
106 | aosDbgCheck(ut->data != NULL && ((ut_adcdata_t*)(ut->data))->driver != NULL && ((ut_adcdata_t*)(ut->data))->convgroup != NULL); |
||
107 | |||
108 | // local variables
|
||
109 | aos_utresult_t result = {0, 0}; |
||
110 | adcsample_t buffer[1] = {0}; |
||
111 | bool wdgpassed = false; |
||
112 | eventmask_t eventmask = 0;
|
||
113 | ADCConversionGroup conversionGroup = *(((ut_adcdata_t*)(ut->data))->convgroup); |
||
114 | conversionGroup.circular = true;
|
||
115 | conversionGroup.end_cb = NULL;
|
||
116 | conversionGroup.end_cb = NULL;
|
||
117 | conversionGroup.htr = ADC_HTR_HT; |
||
118 | conversionGroup.ltr = 0;
|
||
119 | |||
120 | chprintf(stream, "reading voltage for five seconds...\n");
|
||
121 | adcStartConversion(((ut_adcdata_t*)(ut->data))->driver, &conversionGroup, buffer, 1);
|
||
122 | for (uint8_t s = 0; s < 5; ++s) { |
||
123 | aosThdSSleep(1);
|
||
124 | chprintf(stream, "\tVSYS = %fV\n", _adc2volt(buffer[0])); |
||
125 | } |
||
126 | adcStopConversion(((ut_adcdata_t*)(ut->data))->driver); |
||
127 | if (buffer[0] != 0) { |
||
128 | aosUtPassed(stream, &result); |
||
129 | } else {
|
||
130 | aosUtFailed(stream, &result); |
||
131 | } |
||
132 | |||
133 | chprintf(stream, "detecting external power...\n");
|
||
134 | conversionGroup.error_cb = _adcAwdCb; |
||
135 | conversionGroup.htr = _adcWdgThreshold; |
||
136 | conversionGroup.ltr = _adcWdgThreshold; |
||
137 | _listener = chThdGetSelfX(); |
||
138 | adcStartConversion(((ut_adcdata_t*)(ut->data))->driver, &conversionGroup, buffer, 1);
|
||
139 | 1e5f7648 | Thomas Schöpping | eventmask = chEvtWaitOneTimeout(_adcWdgEventmask, chTimeS2I(5));
|
140 | e545e620 | Thomas Schöpping | if (eventmask == _adcWdgEventmask) {
|
141 | aosUtPassedMsg(stream, &result, "%fV %c 9V\n", _adc2volt(buffer[0]), (buffer[0] > _adcWdgThreshold) ? '>' : '<'); |
||
142 | wdgpassed = true;
|
||
143 | } else {
|
||
144 | adcStopConversion(((ut_adcdata_t*)(ut->data))->driver); |
||
145 | aosUtFailed(stream, &result); |
||
146 | wdgpassed = false;
|
||
147 | } |
||
148 | |||
149 | if (wdgpassed) {
|
||
150 | for (uint8_t i = 0; i < 2; ++i) { |
||
151 | if (buffer[0] > _adcWdgThreshold) { |
||
152 | chprintf(stream, "Remove external power within ten seconds.\n");
|
||
153 | conversionGroup.htr = ADC_HTR_HT; |
||
154 | conversionGroup.ltr = _adcWdgThreshold; |
||
155 | } else {
|
||
156 | chprintf(stream, "Connect external power within ten seconds.\n");
|
||
157 | conversionGroup.htr = _adcWdgThreshold; |
||
158 | conversionGroup.ltr = 0;
|
||
159 | } |
||
160 | aosThdMSleep(100); // wait some time so the ADC wil trigger again immediately due to noise |
||
161 | _listener = chThdGetSelfX(); |
||
162 | adcStartConversion(((ut_adcdata_t*)(ut->data))->driver, &conversionGroup, buffer, 1);
|
||
163 | 1e5f7648 | Thomas Schöpping | eventmask = chEvtWaitOneTimeout(_adcWdgEventmask, chTimeS2I(10));
|
164 | e545e620 | Thomas Schöpping | if (eventmask == _adcWdgEventmask) {
|
165 | aosUtPassedMsg(stream, &result, "%fV %c 9V\n", _adc2volt(buffer[0]), (buffer[0] > _adcWdgThreshold) ? '>' : '<'); |
||
166 | } else {
|
||
167 | adcStopConversion(((ut_adcdata_t*)(ut->data))->driver); |
||
168 | aosUtFailed(stream, &result); |
||
169 | break;
|
||
170 | } |
||
171 | } |
||
172 | } |
||
173 | |||
174 | return result;
|
||
175 | } |
||
176 | |||
177 | 165bcce7 | Thomas Schöpping | #endif /* (AMIROOS_CFG_TESTS_ENABLE == TRUE) && defined(BOARD_POWERMANAGEMENT_1_1) && (HAL_USE_ADC == TRUE) */ |