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lhye200
2025-10-17 00:29:14 +08:00
parent a6ddc01c98
commit e7b0457fb9
9 changed files with 482 additions and 18 deletions
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code/ina226.c Normal file
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// <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>: GB18030
/*
* ina226.c
*
* Created on: 2025<32><35>10<31><30>16<31><36>
* Author: LHYe200
*/
#include "ina226.h"
#include "zf_driver_soft_iic.h"
static uint8 is_iic_init = 0;
INA226_t ina226[INA226_NUM];
static soft_iic_info_struct ina226_soft_iic_config;
void INA226_Init()
{
uint8 addr_list[INA226_NUM] = INA226_ADDR;
uint8 mode[2] = INA226_DEF_MODE;
float max_current_A = 20.0f;
float rshunt_mOhm = 10.0f;
float amp_fix_k = 1.0f;
float vot_fix_k = 1.0f;
uint8 counter;
for(counter = 0; counter < INA226_NUM; counter++)
{
INA226_Single_Init(&ina226[counter], addr_list[counter], mode, max_current_A, rshunt_mOhm, amp_fix_k, vot_fix_k);
}
}
void INA226_Single_Init(INA226_t *ina226, uint8 addr, uint8 mode[2], float max_current_A, float rshunt_mOhm, float amp_fix_k, float vot_fix_k)
{
float cal;
if(!is_iic_init)
{
soft_iic_init(&ina226_soft_iic_config, addr, INA226_SOFT_WAIT_TIME, INA226_SCL_PIN, INA226_SDA_PIN);
is_iic_init = 1;
}
ina226->config.addr = addr;
ina226->config.mode[0] = mode[0];
ina226->config.mode[1] = mode[1];
ina226->config.max_current_A = max_current_A;
ina226->config.rshunt_mOhm = rshunt_mOhm;
ina226->config.vot_fix_k = vot_fix_k;
ina226->config.amp_fix_k = amp_fix_k;
ina226->calibration.c_lsb_mA = max_current_A / 65.535f; // Current LSB
cal = (5120.0f) / (ina226->calibration.c_lsb_mA * ina226->config.rshunt_mOhm) * ina226->config.amp_fix_k;
ina226->calibration.cal[0] = (uint8)((uint16)cal >> 8);
ina226->calibration.cal[1] = (uint8)((uint16)cal & 0xFF);
memset(&ina226->result, 0, sizeof(ina226->result));
soft_iic_write_8bit_registers(&ina226_soft_iic_config, INA226_CONFIG_REG, ina226->config.mode, 2);
soft_iic_write_8bit_registers(&ina226_soft_iic_config, INA226_CALIBRATION_REG, ina226->calibration.cal, 2);
}
void INA226_Read(INA226_t *ina226)
{
uint8 counter;
if(!is_iic_init) return;
ina226_soft_iic_config.addr = ina226->config.addr;
// Read voltage, current, power, and shunt voltage registers
soft_iic_read_8bit_registers(&ina226_soft_iic_config, INA226_BUSVOT_REG, ina226->result.org_reg[1],2);
soft_iic_read_8bit_registers(&ina226_soft_iic_config, INA226_CURRENT_REG, ina226->result.org_reg[3],2);
soft_iic_read_8bit_registers(&ina226_soft_iic_config, INA226_POWER_REG, ina226->result.org_reg[2],2);
soft_iic_read_8bit_registers(&ina226_soft_iic_config, INA226_SHUNTVOT_REG, ina226->result.org_reg[0],2);
ina226->result.voltage_V = (int16)((ina226->result.org_reg[1][0] << 8) | ina226->result.org_reg[1][1]) * 0.00125f;
ina226->result.current_A = (int16)((ina226->result.org_reg[3][0] << 8) | ina226->result.org_reg[3][1]) * ina226->calibration.c_lsb_mA * 0.001f;
ina226->result.power_W = (int16)((ina226->result.org_reg[2][0] << 8) | ina226->result.org_reg[2][1]) * ina226->calibration.c_lsb_mA * 0.025f;
ina226->result.shunt_voltage_mV = (int16)((ina226->result.org_reg[0][0] << 8) | ina226->result.org_reg[0][1]) * 0.0025f;
ina226->result.voltage_V = ina226->result.voltage_V > 0 ? ina226->result.voltage_V : 0;
ina226->result.current_A = ina226->result.current_A > 0 ? ina226->result.current_A : 0;
ina226->result.power_W = ina226->result.power_W > 0.016 && ina226->result.current_A > 0 && ina226->result.voltage_V > 0 ? ina226->result.power_W : 0;
ina226->result.shunt_voltage_mV = ina226->result.shunt_voltage_mV > 0 ? ina226->result.shunt_voltage_mV : 0;
for(counter = 0; counter < 9; counter++)
{
ina226->result.past_voltage_V[counter] = ina226->result.past_voltage_V[counter+1];
ina226->result.past_current_A[counter] = ina226->result.past_current_A[counter+1];
}
ina226->result.past_voltage_V[9] = ina226->result.voltage_V;
ina226->result.past_current_A[9] = ina226->result.current_A;
ina226->result.energy_J += (ina226->result.past_voltage_V[9] * ina226->result.past_current_A[9] + ina226->result.past_voltage_V[8] * ina226->result.past_current_A[8]) * (INA226_READ_TIME_MS / 2000.0f);
ina226->result.quantity_C += (ina226->result.past_current_A[9] + ina226->result.past_current_A[8]) * (INA226_READ_TIME_MS / 2000.0f);
}