mirrors
/
Tasmota
mirror of https://github.com/arendst/Tasmota.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix CSE7761 calibration

This commit is contained in:
Theo Arends 2021-03-05 16:23:21 +01:00
parent 919058ebfd
commit e17952ac1f
1 changed files with 22 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
tasmota/xnrg_19_cse7761.ino
View File

@ -29,10 +29,6 @@
//#define CSE7761_SIMULATE
#define CSE7761_DUAL_K1 1 // Current channel sampling resistance in milli Ohm
#define CSE7761_DUAL_K2 1 // Voltage divider resistance in 1k/1M
#define CSE7761_DUAL_CLK1 3579545 // System clock (3.579545MHz) used in frequency calculation
#define CSE7761_UREF 10000 // Gain 1 * 10000 in V
#define CSE7761_IREF 160000 // Gain 16 * 10000 in A
#define CSE7761_PREF 50000 // in W
@ -83,6 +79,7 @@ struct {
uint32_t current_rms[2] = { 0 };
uint32_t energy[2] = { 0 };
uint32_t active_power[2] = { 0 };
uint8_t energy_update = 0;
uint8_t init = 4;
uint8_t ready = 0;
} CSE7761Data;
@ -157,26 +154,15 @@ uint32_t Cse7761Read(uint32_t reg) {
}
bool Cse7761ChipInit(void) {
uint16_t coefficient[8] = { 0 };
uint16_t calc_chksum = 0xFFFF;
for (uint32_t i = 0; i < 8; i++) {
coefficient[i] = Cse7761Read(CSE7761_REG_RMSIAC + i);
calc_chksum += coefficient[i];
calc_chksum = Cse7761Read(CSE7761_REG_RMSIAC + i);
}
calc_chksum = ~calc_chksum;
uint16_t dummy = Cse7761Read(CSE7761_REG_COEFFOFFSET);
uint16_t coeff_chksum = Cse7761Read(CSE7761_REG_COEFFCHKSUM);
if (calc_chksum != coeff_chksum) {
AddLog(LOG_LEVEL_DEBUG, PSTR("C61: Default coefficients"));
coefficient[RmsIAC] = 0xCC11;
coefficient[RmsUC] = 0xA643;
coefficient[PowerPAC] = 0xADE1;
}
if (HLW_PREF_PULSE == Settings.energy_power_calibration) {
// Settings.energy_frequency_calibration = 2750;
Settings.energy_voltage_calibration = CSE7761_UREF;
Settings.energy_current_calibration = CSE7761_IREF;
Settings.energy_power_calibration = CSE7761_PREF;
AddLog(LOG_LEVEL_DEBUG, PSTR("C61: Not factory calibrated"));
}
Cse7761Write(CSE7761_SPECIAL_COMMAND, CSE7761_CMD_ENABLE_WRITE);
@ -322,7 +308,8 @@ void Cse7761GetData(void) {
// The active power parameter PowerA/B is in two’s complement format, 32-bit data, the highest bit is Sign bit.
uint32_t value = Cse7761Read(CSE7761_REG_RMSU);
#ifdef CSE7761_SIMULATE
value = 2342160;
// value = 2342160; // 234.2V
value = 2000000; // 200V
#endif
CSE7761Data.voltage_rms = (value >= 0x800000) ? 0 : value;
@ -339,12 +326,14 @@ void Cse7761GetData(void) {
value = Cse7761Read(CSE7761_REG_RMSIB);
#ifdef CSE7761_SIMULATE
value = 29760;
// value = 29760; // 0.186A
value = 800000; // 5A
#endif
CSE7761Data.current_rms[1] = ((value >= 0x800000) || (value < 1600)) ? 0 : value; // No load threshold of 10mA
value = Cse7761Read(CSE7761_REG_POWERPB);
#ifdef CSE7761_SIMULATE
value = 2126641;
// value = 2126641; // 42.5W
value = 50000000; // 1000W
#endif
CSE7761Data.active_power[1] = (0 == CSE7761Data.current_rms[1]) ? 0 : (value & 0x80000000) ? (~value) + 1 : value;
@ -354,8 +343,8 @@ void Cse7761GetData(void) {
CSE7761Data.active_power[0], CSE7761Data.active_power[1]);
if (Energy.power_on) { // Powered on
Energy.voltage[0] = ((float)CSE7761Data.voltage_rms / Settings.energy_voltage_calibration); // V
// Energy.frequency[0] = (float)Settings.energy_frequency_calibration / ((float)CSE7761Data.frequency + 1); // Hz
Energy.voltage[0] = ((float)CSE7761Data.voltage_rms / Settings.energy_voltage_calibration); // V
for (uint32_t channel = 0; channel < 2; channel++) {
Energy.data_valid[channel] = 0;
@ -365,6 +354,7 @@ void Cse7761GetData(void) {
} else {
Energy.current[channel] = (float)CSE7761Data.current_rms[channel] / Settings.energy_current_calibration; // A
CSE7761Data.energy[channel] += Energy.active_power[channel];
CSE7761Data.energy_update++;
}
}
} else { // Powered off
@ -406,13 +396,14 @@ void Cse7761EverySecond(void) {
}
else {
if (2 == CSE7761Data.ready) {
uint32_t energy_sum = (CSE7761Data.energy[0] + CSE7761Data.energy[1]) * 1000;
uint32_t energy_sum = ((CSE7761Data.energy[0] + CSE7761Data.energy[1]) * 1000) / CSE7761Data.energy_update;
if (energy_sum) {
Energy.kWhtoday_delta += energy_sum / 36;
EnergyUpdateToday();
CSE7761Data.energy[0] = 0;
CSE7761Data.energy[1] = 0;
}
CSE7761Data.energy[0] = 0;
CSE7761Data.energy[1] = 0;
CSE7761Data.energy_update = 0;
}
}
}
@ -425,6 +416,12 @@ void Cse7761SnsInit(void) {
SetSerial(38400, TS_SERIAL_8E1);
ClaimSerial();
}
if (HLW_PREF_PULSE == Settings.energy_power_calibration) {
// Settings.energy_frequency_calibration = 2750;
Settings.energy_voltage_calibration = CSE7761_UREF;
Settings.energy_current_calibration = CSE7761_IREF;
Settings.energy_power_calibration = CSE7761_PREF;
}
} else {
TasmotaGlobal.energy_driver = ENERGY_NONE;
}
@ -462,7 +459,7 @@ bool Cse7761Command(void) {
else if (CMND_POWERSET == Energy.command_code) {
if (XdrvMailbox.data_len && CSE7761Data.active_power[channel]) {
if ((value > 100) && (value < 200000)) { // Between 1W and 2000W
Settings.energy_power_calibration = (CSE7761Data.active_power[channel] * 100) / value;
Settings.energy_power_calibration = ((CSE7761Data.active_power[channel]) / value) * 100;
}
}
}