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/**
* \file b_drv_ltc2662iuh_12.c
* \version v0.0.1
* \date 2024-02-19
* \author miniminiminini (405553848@qq.com)
* \brief LTC2662IUH_12驱动
*
* Copyright (c) 2024 by miniminiminini. All Rights Reserved.
*/
/* Includes ----------------------------------------------*/
#include <math.h>
#include "drivers/inc/b_drv_ltc2662iuh_12.h"
/**
* \defgroup LTC2662IUH_12_Private_FunctionPrototypes
* \{
*/
/**
* }
*/
/**
* \defgroup LTC2662IUH_12_Exported_Variables
* \{
*/
/**
* }
*/
/**
* \defgroup LTC2662IUH_12_Private_Defines
* \{
*/
#define DRIVER_NAME LTC2662IUH_12
#define DAC0 0X00
#define DAC1 0X01
#define DAC2 0X02
#define DAC3 0X03
#define DAC4 0X04
// #define L2B_B2L_16b(n) ((((n) & 0xff) << 8) | (((n) & 0xff00) >> 8))
/**
* }
*/
/**
* \defgroup LTC2662IUH_12_Private_TypesDefinitions
* \{
*/
/**
* }
*/
/**
* \defgroup LTC2662IUH_12_Private_Macros
* \{
*/
/**
* }
*/
/**
* \defgroup LTC2662IUH_12_Private_Variables
* \{
*/
bDRIVER_HALIF_TABLE(bLTC2662IUH_12_HalIf_t, DRIVER_NAME);
bLTC2662IUH_12Private_t
bLTC2662IUH_12RunInfo[bDRIVER_HALIF_NUM(bLTC2662IUH_12_HalIf_t, DRIVER_NAME)];
/**
* }
*/
/**
* \defgroup LTC2662IUH_12_Private_Functions
* \{
*/
static int _bLTC2662_Send(bDriverInterface_t *pdrv, uint8_t *pbuf, uint16_t len)
{
bDRIVER_GET_HALIF(_if, bLTC2662IUH_12_HalIf_t, pdrv);
return bHalSpiSend(_if, pbuf, len);
}
static int _bLTC2662_Recv(bDriverInterface_t *pdrv, uint8_t *pbuf, uint16_t len)
{
bDRIVER_GET_HALIF(_if, bLTC2662IUH_12_HalIf_t, pdrv);
return bHalSpiReceive(_if, pbuf, len);
}
/**
* @brief 通过对应dac通道的expect_current来更新span与span_value
*
* @param pdrv
* @param dac_x
* @return LTC2662_SPAN_t
*/
static int _bLTC2662_DACX_Updata_Span(bDriverInterface_t *pdrv, LTC2662_DAC_t dac_x)
{
bDRIVER_GET_PRIVATE(_priv, bLTC2662IUH_12Private_t, pdrv);
float current = _priv->dac_attribute[dac_x].expect_current;
if (dac_x >= LTC_DAC_MAX)
{
b_log_e("Invalid DAC channel");
return -1;
}
if (current <= LTC_SPAN_3_125)
{
_priv->dac_attribute[dac_x].span = LTC_SPAN_3_125mA;
_priv->dac_attribute[dac_x].span_value = LTC_SPAN_3_125;
_priv->dac_attribute[dac_x].span_div = LTC_SPAN_3_125 / 4095;
}
else if (current <= LTC_SPAN_6_25)
{
_priv->dac_attribute[dac_x].span = LTC_SPAN_6_25mA;
_priv->dac_attribute[dac_x].span_value = LTC_SPAN_6_25;
_priv->dac_attribute[dac_x].span_div = LTC_SPAN_6_25 / 4095;
}
else if (current <= LTC_SPAN_12_5)
{
_priv->dac_attribute[dac_x].span = LTC_SPAN_12_5mA;
_priv->dac_attribute[dac_x].span_value = LTC_SPAN_12_5;
_priv->dac_attribute[dac_x].span_div = LTC_SPAN_12_5 / 4095;
}
else if (current <= LTC_SPAN_25)
{
_priv->dac_attribute[dac_x].span = LTC_SPAN_25mA;
_priv->dac_attribute[dac_x].span_value = LTC_SPAN_25;
_priv->dac_attribute[dac_x].span_div = LTC_SPAN_25 / 4095;
}
else if (current <= LTC_SPAN_50)
{
_priv->dac_attribute[dac_x].span = LTC_SPAN_50mA;
_priv->dac_attribute[dac_x].span_value = LTC_SPAN_50;
_priv->dac_attribute[dac_x].span_div = LTC_SPAN_50 / 4095;
}
else if (current <= LTC_SPAN_100)
{
_priv->dac_attribute[dac_x].span = LTC_SPAN_100mA;
_priv->dac_attribute[dac_x].span_value = LTC_SPAN_100;
_priv->dac_attribute[dac_x].span_div = LTC_SPAN_100 / 4095;
}
else if (current <= LTC_SPAN_200)
{
_priv->dac_attribute[dac_x].span = LTC_SPAN_200mA;
_priv->dac_attribute[dac_x].span_value = LTC_SPAN_200;
_priv->dac_attribute[dac_x].span_div = LTC_SPAN_200 / 4095;
}
else if (current <= LTC_SPAN_300)
{
_priv->dac_attribute[dac_x].span = LTC_SPAN_300mA;
_priv->dac_attribute[dac_x].span_value = LTC_SPAN_300;
_priv->dac_attribute[dac_x].span_div = LTC_SPAN_300 / 4095;
}
else
{
b_log_e("Invalid current value");
return -2;
}
if ((dac_x == LTC_DAC_0))
{
// b_log("$$$ DAC4 current: %.2f, span: %d, span_value: %.2f, span_div: %.2f\r\n", current,
// _priv->dac_attribute[dac_x].span, _priv->dac_attribute[dac_x].span_value,
// _priv->dac_attribute[dac_x].span_div);
}
return 0;
}
/**
* @brief 当期待电流变化时更新某一个通道的DAC属性值
*
* @param pdrv
* @param dac_x
* @return int
*/
static int _bLTC2662_DACX_Attribute_Updata(bDriverInterface_t *pdrv, LTC2662_DAC_t dac_x)
{
bDRIVER_GET_PRIVATE(_priv, bLTC2662IUH_12Private_t, pdrv);
if (dac_x >= LTC_DAC_MAX)
{
b_log_e("Invalid DAC channel");
return -1;
}
if (_bLTC2662_DACX_Updata_Span(pdrv, dac_x) < 0)
{
b_log_e("Invalid current value");
return -2;
}
_priv->dac_attribute[dac_x].set_value =
round(_priv->dac_attribute[dac_x].expect_current / _priv->dac_attribute[dac_x].span_div);
if ((dac_x == LTC_DAC_0))
{
// b_log("^^^ set_value:%d", _priv->dac_attribute[dac_x].set_value);
}
_priv->dac_attribute[dac_x].set_value =
_priv->dac_attribute[dac_x].set_value > 4095 ? 4095 : _priv->dac_attribute[dac_x].set_value;
_priv->dac_attribute[dac_x].real_current =
_priv->dac_attribute[dac_x].set_value * _priv->dac_attribute[dac_x].span_div;
_priv->dac_attribute[dac_x].err_current =
_priv->dac_attribute[dac_x].expect_current - _priv->dac_attribute[dac_x].real_current;
_priv->dac_attribute[dac_x].err_percentage_current =
_priv->dac_attribute[dac_x].err_current / _priv->dac_attribute[dac_x].expect_current;
if ((dac_x == LTC_DAC_0))
{
// b_log("^^^ set_value:%d real_current=%.2f\r\n", _priv->dac_attribute[dac_x].set_value,
// _priv->dac_attribute[dac_x].real_current);
}
return 0;
}
/**
* \brief 写入范围到n
* \param pdrv
* \param dac_x
* \param range
* \return int
*/
static int _bLTC2662_WriteSpanToN(bDriverInterface_t *pdrv, LTC2662_DAC_t dac_x)
{
uint8_t send_buf[3] = {0, 0, 0};
U_LT_Write data;
bDRIVER_GET_HALIF(_if, bLTC2662IUH_12_HalIf_t, pdrv);
bDRIVER_GET_PRIVATE(_priv, bLTC2662IUH_12Private_t, pdrv);
if (dac_x >= LTC_DAC_MAX)
{
b_log_e("Invalid DAC channel");
return -1;
}
// 0 1 1 0 Write Span to n
if (dac_x == LTC_DAC_0)
{
send_buf[0] = WRITE_SPAN_TO_N | DAC0;
}
else if (dac_x == LTC_DAC_1)
{
send_buf[0] = WRITE_SPAN_TO_N | DAC1;
}
else if (dac_x == LTC_DAC_2)
{
send_buf[0] = WRITE_SPAN_TO_N | DAC2;
}
else if (dac_x == LTC_DAC_3)
{
send_buf[0] = WRITE_SPAN_TO_N | DAC3;
}
else if (dac_x == LTC_DAC_4)
{
send_buf[0] = WRITE_SPAN_TO_N | DAC4;
}
if (_priv->dac_attribute[dac_x].span == LTC_SPAN_3_125mA)
{
data.LT_uint16 = LTC_SPAN_VALUE_3_125mA;
}
else if (_priv->dac_attribute[dac_x].span == LTC_SPAN_6_25mA)
{
data.LT_uint16 = LTC_SPAN_VALUE_6_25mA;
}
else if (_priv->dac_attribute[dac_x].span == LTC_SPAN_12_5mA)
{
data.LT_uint16 = LTC_SPAN_VALUE_12_5mA;
}
else if (_priv->dac_attribute[dac_x].span == LTC_SPAN_25mA)
{
data.LT_uint16 = LTC_SPAN_VALUE_25mA;
}
else if (_priv->dac_attribute[dac_x].span == LTC_SPAN_50mA)
{
data.LT_uint16 = LTC_SPAN_VALUE_50mA;
}
else if (_priv->dac_attribute[dac_x].span == LTC_SPAN_100mA)
{
data.LT_uint16 = LTC_SPAN_VALUE_100mA;
}
else if (_priv->dac_attribute[dac_x].span == LTC_SPAN_200mA)
{
data.LT_uint16 = LTC_SPAN_VALUE_200mA;
}
else if (_priv->dac_attribute[dac_x].span == LTC_SPAN_300mA)
{
data.LT_uint16 = LTC_SPAN_VALUE_300mA;
}
uint8_t temp_data = data.LT_byte[0];
data.LT_byte[0] = data.LT_byte[1];
data.LT_byte[1] = temp_data;
send_buf[1] = data.LT_byte[0];
send_buf[2] = data.LT_byte[1];
uint8_t tmp_send_buf[4] = {0, 0, 0, 0};
memcpy(&tmp_send_buf[1], &send_buf[0], 3);
// spi发送
bHalGpioWritePin(_if->cs.port, _if->cs.pin, 0);
_bLTC2662_Send(pdrv, tmp_send_buf, 4);
bHalGpioWritePin(_if->cs.port, _if->cs.pin, 1);
bHalGpioWritePin(_if->_if.simulating_spi.mosi.port, _if->_if.simulating_spi.mosi.pin, 1);
if ((dac_x == LTC_DAC_0))
{
b_log("%d###%02x %02X %02X %02X\r\n", _priv->dac_attribute[dac_x].span, tmp_send_buf[0],
tmp_send_buf[1], tmp_send_buf[2], tmp_send_buf[3]);
}
return 0;
}
/**
* \brief 写入代码至 n，更新 n（上电）
* \param pdrv
* \param dac_x
* \param range
* \return int
*/
static int _bLTC2662_WriteCodeToNUpdateN(bDriverInterface_t *pdrv, LTC2662_DAC_t dac_x)
{
uint8_t send_buf[3] = {0, 0, 0};
U_LT_Write data;
bDRIVER_GET_HALIF(_if, bLTC2662IUH_12_HalIf_t, pdrv);
bDRIVER_GET_PRIVATE(_priv, bLTC2662IUH_12Private_t, pdrv);
if (dac_x >= LTC_DAC_MAX)
{
b_log_e("Invalid DAC channel");
return -1;
}
// 0 0 1 1
if (dac_x == LTC_DAC_0)
{
send_buf[0] = WRITE_CODE_TO_N_UPDATE_N | DAC0;
}
else if (dac_x == LTC_DAC_1)
{
send_buf[0] = WRITE_CODE_TO_N_UPDATE_N | DAC1;
}
else if (dac_x == LTC_DAC_2)
{
send_buf[0] = WRITE_CODE_TO_N_UPDATE_N | DAC2;
}
else if (dac_x == LTC_DAC_3)
{
send_buf[0] = WRITE_CODE_TO_N_UPDATE_N | DAC3;
}
else if (dac_x == LTC_DAC_4)
{
send_buf[0] = WRITE_CODE_TO_N_UPDATE_N | DAC4;
}
// 将set_value由16bit转换为12bit,后四个无关位,并且进行MSB-TO-LSB
data.LT_uint16 = _priv->dac_attribute[dac_x].set_value;
uint8_t temp_data = data.LT_byte[0];
data.LT_byte[0] = data.LT_byte[1];
data.LT_byte[1] = temp_data;
send_buf[1] = data.LT_byte[0] << 4 | data.LT_byte[1] >> 4;
send_buf[2] = data.LT_byte[1] << 4;
uint8_t tmp_send_buf[4] = {0, 0, 0, 0};
memcpy(&tmp_send_buf[1], &send_buf[0], 3);
// spi发送
bHalGpioWritePin(_if->cs.port, _if->cs.pin, 0);
_bLTC2662_Send(pdrv, tmp_send_buf, 4);
bHalGpioWritePin(_if->cs.port, _if->cs.pin, 1);
bHalGpioWritePin(_if->_if.simulating_spi.mosi.port, _if->_if.simulating_spi.mosi.pin, 1);
if ((dac_x == LTC_DAC_0))
{
b_log("%d %.2f||| %02X %02X %02X %02X\r\n", _priv->dac_attribute[dac_x].set_value,
_priv->dac_attribute[dac_x].real_current, tmp_send_buf[0], tmp_send_buf[1],
tmp_send_buf[2], tmp_send_buf[3]);
}
return 0;
}
static int _bLTC2662_DACX_Exec(bDriverInterface_t *pdrv, LTC2662_DAC_t dac_x)
{
bDRIVER_GET_PRIVATE(_priv, bLTC2662IUH_12Private_t, pdrv);
if (dac_x >= LTC_DAC_MAX)
{
b_log_e("Invalid DAC channel");
return -1;
}
if (_bLTC2662_WriteSpanToN(pdrv, dac_x) < 0)
{
b_log_e("_bLTC2662_WriteSpanToN chx=%d err!!!\r\n", dac_x);
return -2;
}
if (_bLTC2662_WriteCodeToNUpdateN(pdrv, dac_x) < 0)
{
b_log_e("_bLTC2662_WriteCodeToNUpdateN chx=%d err!!!\r\n", dac_x);
return -3;
}
_priv->dac_attribute[dac_x].status = 1;
// b_log_i("\r\n%d\t%10.3f\t%10.3f\t%10.3f\t%10.3f\t\r\n", dac_x,
// _priv->dac_attribute[dac_x].expect_current, _priv->dac_attribute[dac_x].real_current,
// _priv->dac_attribute[dac_x].err_current,
// _priv->dac_attribute[dac_x].err_percentage_current);
return 0;
}
// Power Down n
static int _bLTC2662_DACX_Stop(bDriverInterface_t *pdrv, LTC2662_DAC_t dac_x)
{
uint8_t send_buf[3] = {0, 0, 0};
bDRIVER_GET_HALIF(_if, bLTC2662IUH_12_HalIf_t, pdrv);
bDRIVER_GET_PRIVATE(_priv, bLTC2662IUH_12Private_t, pdrv);
if (dac_x >= LTC_DAC_MAX)
{
b_log_e("Invalid DAC channel");
return -1;
}
// 0 1 0 0 Power Down N
if (dac_x == LTC_DAC_0)
{
send_buf[0] = POWER_DOWN_N | DAC0;
}
else if (dac_x == LTC_DAC_1)
{
send_buf[0] = POWER_DOWN_N | DAC1;
}
else if (dac_x == LTC_DAC_2)
{
send_buf[0] = POWER_DOWN_N | DAC2;
}
else if (dac_x == LTC_DAC_3)
{
send_buf[0] = POWER_DOWN_N | DAC3;
}
else if (dac_x == LTC_DAC_4)
{
send_buf[0] = POWER_DOWN_N | DAC4;
}
send_buf[1] = 0;
send_buf[2] = 0;
uint8_t tmp_send_buf[4] = {0, 0, 0, 0};
memcpy(&tmp_send_buf[1], &send_buf[0], 3);
// spi发送
bHalGpioWritePin(_if->cs.port, _if->cs.pin, 0);
_bLTC2662_Send(pdrv, tmp_send_buf, 4);
bHalGpioWritePin(_if->cs.port, _if->cs.pin, 1);
_priv->dac_attribute[dac_x].status = 0;
_priv->dac_attribute[dac_x].expect_current = 0;
// b_log_i("\r\n%d\t%d\t\r\n", dac_x, _priv->dac_attribute[dac_x].status);
return 0;
}
static int _bLTC2662_GET_DACX_FR(bDriverInterface_t *pdrv, LTC2662_DAC_t dac_x)
{
int ret = -1;
uint8_t recv_buf[3] = {0, 0, 0};
bDRIVER_GET_HALIF(_if, bLTC2662IUH_12_HalIf_t, pdrv);
if (dac_x >= LTC_DAC_MAX)
{
b_log_e("Invalid DAC channel");
return -1;
}
// spi接收
bHalGpioWritePin(_if->cs.port, _if->cs.pin, 0);
_bLTC2662_Recv(pdrv, recv_buf, 3);
bHalGpioWritePin(_if->cs.port, _if->cs.pin, 1);
switch (dac_x)
{
case LTC_DAC_0:
ret = recv_buf[0] & 0x01;
break;
case LTC_DAC_1:
ret = recv_buf[0] & 0x02;
break;
case LTC_DAC_2:
ret = recv_buf[0] & 0x04;
break;
case LTC_DAC_3:
ret = recv_buf[0] & 0x08;
break;
case LTC_DAC_4:
ret = recv_buf[0] & 0x10;
break;
default:
break;
}
return ret;
}
static int _bLTC2662IUH_12Ctl(bDriverInterface_t *pdrv, uint8_t cmd, void *param)
{
bDRIVER_GET_PRIVATE(_priv, bLTC2662IUH_12Private_t, pdrv);
bLTC2662_CONFIG_t *p = (bLTC2662_CONFIG_t *)param;
bLTC2662_STATUS_t *q = (bLTC2662_STATUS_t *)param;
switch (cmd)
{
case bCMD_LTC_GET_DACX_STATUS:
if (param == NULL)
{
b_log_e("bCMD_LTC_GET_DACX_STATUS param err!!!\r\n");
return -1;
}
if (q->dac_channel >= LTC_DAC_MAX)
{
b_log_e("bCMD_LTC_GET_DACX_STATUS dac_channel err!!!\r\n");
return -2;
}
q->status = _priv->dac_attribute[q->dac_channel].status;
break;
case bCMD_LTC_SET_CURRENT:
if (param == NULL)
{
b_log_e("bCMD_LTC_SET_CURRENT param err!!!\r\n");
return -1;
}
if (p->dac_channel >= LTC_DAC_MAX)
{
b_log_e("bCMD_LTC_SET_CURRENT dac_channel err!!!\r\n");
return -2;
}
_priv->dac_attribute[p->dac_channel].expect_current = p->current;
break;
case bCMD_LTC_GET_CURRENT:
if (param == NULL)
{
b_log_e("bCMD_LTC_GET_CURRENT param err!!!\r\n");
return -1;
}
if (p->dac_channel >= LTC_DAC_MAX)
{
b_log_e("bCMD_LTC_GET_CURRENT dac_channel err!!!\r\n");
return -2;
}
p->current = _priv->dac_attribute[p->dac_channel].real_current;
break;
case bCMD_LTC_EXEC_DACX:
if (param == NULL)
{
b_log_e("bCMD_LTC_EXEC_DACX param err!!!\r\n");
return -1;
}
if (p->dac_channel >= LTC_DAC_MAX)
{
b_log_e("bCMD_LTC_EXEC_DACX dac_channel err!!!\r\n");
return -2;
}
if (p->current < 0)
{
b_log_e("bCMD_LTC_EXEC_DACX current err!!!\r\n");
return -3;
}
if (p->current == _priv->dac_attribute[p->dac_channel].expect_current)
{
// b_log_i("bCMD_LTC_EXEC_DACX current is equal to expect_current, no need to
// exec!!!\r\n");
return 0;
}
else
{
_priv->dac_attribute[p->dac_channel].expect_current = p->current;
}
if (_bLTC2662_DACX_Attribute_Updata(pdrv, p->dac_channel) < 0)
{
b_log_e("_bLTC2662_DACX_Attribute_Updata chx=%d err!!!\r\n", p->dac_channel);
return -4;
}
if (_bLTC2662_DACX_Exec(pdrv, p->dac_channel) < 0)
{
b_log_e("_bLTC2662_DACX_Exec chx=%d err!!!\r\n", p->dac_channel);
return -5;
}
break;
case bCMD_LTC_STOP_DACX:
if (param == NULL)
{
b_log_e("bCMD_LTC_STOP_DACX param err!!!\r\n");
return -1;
}
if (p->dac_channel >= LTC_DAC_MAX)
{
b_log_e("bCMD_LTC_STOP_DACX dac_channel err!!!\r\n");
return -2;
}
if (_bLTC2662_DACX_Stop(pdrv, p->dac_channel) < 0)
{
b_log_e("_bLTC2662_DACX_Stop chx=%d err!!!\r\n", p->dac_channel);
return -3;
}
break;
case bCMD_LTC_GET_DACX_FR:
if (param == NULL)
{
b_log_e("bCMD_LTC_GET_DACX_FR param err!!!\r\n");
return -1;
}
if (q->dac_channel >= LTC_DAC_MAX)
{
b_log_e("bCMD_LTC_GET_DACX_FR dac_channel err!!!\r\n");
return -2;
}
q->status = _priv->dac_attribute[q->dac_channel].status;
q->open_circuit_fault = _bLTC2662_GET_DACX_FR(pdrv, q->dac_channel);
break;
default:
break;
}
return 0;
}
/**
* \brief 关断模式
* \param pdrv
* \return int
*/
static int _bLTC2662IUH_12Close(bDriverInterface_t *pdrv)
{
for (uint8_t i = 0; i < LTC_DAC_MAX; i++)
{
_bLTC2662_DACX_Stop(pdrv, (LTC2662_DAC_t)i);
}
return 0;
}
/**
* }
*/
/**
* \defgroup LTC2662IUH_12_Exported_Functions
* \{
*/
int bLTC2662IUH_12_Init(bDriverInterface_t *pdrv)
{
bDRIVER_STRUCT_INIT(pdrv, DRIVER_NAME, bLTC2662IUH_12_Init);
pdrv->ctl = _bLTC2662IUH_12Ctl;
pdrv->close = _bLTC2662IUH_12Close;
pdrv->_private._p = &bLTC2662IUH_12RunInfo[pdrv->drv_no];
_bLTC2662IUH_12Close(pdrv);
return 0;
}
#ifdef BSECTION_NEED_PRAGMA
#pragma section driver_init
#endif
bDRIVER_REG_INIT(B_DRIVER_LTC2662IUH_12, bLTC2662IUH_12_Init);
#ifdef BSECTION_NEED_PRAGMA
#pragma section
#endif
/**
* }
*/
/**
* }
*/
/**
* }
*/
/**
* }
*/
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