Mercurial > public > ostc4

comparison Small_CPU/Src/batteryGasGauge.c @ 437:6c824f902934

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merged in Ideenmodellierer/ostc4/Improve_BatteryGasGauge (pull request #40) Improve BatteryGasGauge
author heinrichsweikamp <bitbucket@heinrichsweikamp.com>
date Mon, 24 Feb 2020 07:58:37 +0000
parents aa286a4926c2
children 1b995079c045
comparison
equal deleted inserted replaced
432:2b4440f75434 437:6c824f902934
62 62
63 uint8_t buffer[2]; 63 uint8_t buffer[2];
64 buffer[0] = 0x01; 64 buffer[0] = 0x01;
65 65
66 // F8 = 11111000: 66 // F8 = 11111000:
67 // Vbat 3.0V (11) 67 // ADC auto mode (11)
68 // Prescale M = 128 (111) 68 // Prescale M = 128 (111)
69 // AL/CC pin disable (0) 69 // AL/CC pin disable (0)
70 // Shutdown (0) 70 // Shutdown (0)
71 buffer[1] = 0xF8; 71 buffer[1] = 0xF8;
72 I2C_Master_Transmit(DEVICE_BATTERYGAUGE, buffer, 2); 72 I2C_Master_Transmit(DEVICE_BATTERYGAUGE, buffer, 2);
125 battery_f_voltage_local *= (float)6 / (float)0xFFFF; 125 battery_f_voltage_local *= (float)6 / (float)0xFFFF;
126 126
127 // max/full: 0.085 mAh * 1 * 65535 = 5570 mAh 127 // max/full: 0.085 mAh * 1 * 65535 = 5570 mAh
128 battery_f_charge_percent_local = (float)(bufferReceive[2] * 256); 128 battery_f_charge_percent_local = (float)(bufferReceive[2] * 256);
129 battery_f_charge_percent_local += (float)(bufferReceive[3]); 129 battery_f_charge_percent_local += (float)(bufferReceive[3]);
130 battery_f_charge_percent_local -= BGG_BATTERY_OFFSET; 130 battery_f_charge_percent_local -= BGG_BATTERY_OFFSET; /* Because of the prescalar 128 the counter assumes a max value of 5570mAh => normalize to 3350mAh*/
131 battery_f_charge_percent_local /= BGG_BATTERY_DIVIDER; 131 battery_f_charge_percent_local /= BGG_BATTERY_DIVIDER; /* transform to percentage */
132 132
133 if(battery_f_charge_percent_local < 0) 133 if(battery_f_charge_percent_local < 0)
134 battery_f_charge_percent_local = 0; 134 battery_f_charge_percent_local = 0;
135 135
136 battery_f_voltage = battery_f_voltage_local; 136 battery_f_voltage = battery_f_voltage_local;