Mercurial > public > ostc4
annotate Small_CPU/Src/batteryGasGauge.c @ 237:ec16fd26e280 div-fixes-5
Bugfix: do not show NDL in bigscreen mode when zero
The first minute of the dive, no deco or NDL data is shown in normal mode,
but when starting in bigscreen mode, the first minute, the screen shows
NDL 0', which is obviously wrong. Fix this, and simply show nothing like
in normal mode.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
---|---|
date | Sat, 06 Apr 2019 20:35:21 +0200 |
parents | f9ba924d188e |
children | b23de15e2861 |
rev | line source |
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38 | 1 /** |
2 ****************************************************************************** | |
3 * @file batteryGasGauge.c | |
4 * @author heinrichs weikamp gmbh | |
5 * @version V0.0.1 | |
6 * @date 09-Dec-2014 | |
7 * @brief LTC2942 Battery Gas Gauge | |
8 * | |
9 @verbatim | |
10 ============================================================================== | |
11 ##### stm32f4xx_hal_i2c.c modification ##### | |
12 ============================================================================== | |
13 The LTC2942 requires an repeated start condition without stop condition | |
14 for data reception. | |
15 | |
16 @endverbatim | |
17 ****************************************************************************** | |
18 * @attention | |
19 * | |
20 * <h2><center>© COPYRIGHT(c) 2014 heinrichs weikamp</center></h2> | |
21 * | |
22 ****************************************************************************** | |
23 */ | |
24 /* Includes ------------------------------------------------------------------*/ | |
25 #include "batteryGasGauge.h" | |
26 #include "baseCPU2.h" | |
27 #include "stm32f4xx_hal.h" | |
28 #include "i2c.h" | |
29 | |
228
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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30 static float battery_f_voltage = 0; |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
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changeset
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31 static float battery_f_charge_percent = 0; |
38 | 32 |
33 #define BGG_BATTERY_OFFSET (26123) //; 65536-(3,35Ah/0,085mAh) | |
228
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Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
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34 #define BGG_BATTERY_DIVIDER (394) //; 3,35Ah/0,085mAh/100 [%] |
38 | 35 |
36 float get_voltage(void) | |
37 { | |
38 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
39 return 3.0f; | |
40 #endif | |
41 | |
42 return battery_f_voltage; | |
43 } | |
44 | |
45 | |
46 float get_charge(void) | |
47 { | |
48 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
49 return 100.0f; | |
50 #endif | |
51 | |
52 return battery_f_charge_percent; | |
53 } | |
54 | |
55 | |
56 void init_battery_gas_gauge(void) | |
57 { | |
58 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
59 return; | |
60 #endif | |
61 | |
62 uint8_t buffer[2]; | |
63 buffer[0] = 0x01; | |
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Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
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changeset
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64 |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
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changeset
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65 // F8 = 11111000: |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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66 // Vbat 3.0V (11) |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
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changeset
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67 // Prescale M = 128 (111) |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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68 // AL/CC pin disable (0) |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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69 // Shutdown (0) |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
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70 buffer[1] = 0xF8; |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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71 I2C_Master_Transmit(DEVICE_BATTERYGAUGE, buffer, 2); |
38 | 72 } |
73 | |
74 | |
75 void battery_gas_gauge_get_data(void) | |
76 { | |
77 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
78 return; | |
79 #endif | |
80 | |
81 float battery_f_voltage_local; | |
82 float battery_f_charge_percent_local; | |
83 | |
84 uint8_t bufferReceive[10]; | |
85 I2C_Master_Receive( DEVICE_BATTERYGAUGE, bufferReceive, 10); | |
86 | |
87 battery_f_voltage_local = (float)(bufferReceive[8] * 256); | |
88 battery_f_voltage_local += (float)(bufferReceive[9]); | |
89 battery_f_voltage_local *= (float)6 / (float)0xFFFF; | |
90 | |
91 // max/full: 0.085 mAh * 1 * 65535 = 5570 mAh | |
92 battery_f_charge_percent_local = (float)(bufferReceive[2] * 256); | |
93 battery_f_charge_percent_local += (float)(bufferReceive[3]); | |
94 battery_f_charge_percent_local -= BGG_BATTERY_OFFSET; | |
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f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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95 battery_f_charge_percent_local /= BGG_BATTERY_DIVIDER; |
38 | 96 |
97 if(battery_f_charge_percent_local < 0) | |
98 battery_f_charge_percent_local = 0; | |
99 | |
100 battery_f_voltage = battery_f_voltage_local; | |
101 battery_f_charge_percent = battery_f_charge_percent_local; | |
102 } | |
103 | |
104 | |
105 void battery_gas_gauge_set_charge_full(void) | |
106 { | |
107 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
108 return; | |
109 #endif | |
110 | |
111 uint8_t bufferSend[3]; | |
112 bufferSend[0] = 0x02; | |
113 bufferSend[1] = 0xFF; | |
114 bufferSend[2] = 0xFF; | |
115 I2C_Master_Transmit( DEVICE_BATTERYGAUGE, bufferSend, 3); | |
116 } | |
117 | |
118 | |
119 void battery_gas_gauge_set(float percentage) | |
120 { | |
121 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
122 return; | |
123 #endif | |
124 | |
125 uint16_t mAhSend; | |
126 | |
127 if(percentage >= 100) | |
128 mAhSend = 0xFFFF; | |
228
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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129 else { |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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130 mAhSend = (percentage * BGG_BATTERY_DIVIDER) + BGG_BATTERY_OFFSET; |
f9ba924d188e
Bugfix: set battery percentage correctly after RTE update
Jan Mulder <jlmulder@xs4all.nl>
parents:
38
diff
changeset
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131 } |
38 | 132 |
133 uint8_t bufferSend[3]; | |
134 bufferSend[0] = 0x02; | |
135 bufferSend[1] = (uint8_t)(mAhSend / 256); | |
136 bufferSend[2] = (uint8_t)(mAhSend & 0xFF); | |
137 I2C_Master_Transmit( DEVICE_BATTERYGAUGE, bufferSend, 3); | |
138 } | |
139 | |
140 | |
141 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/ |