Mercurial > public > ostc4

view Small_CPU/Inc/batteryGasGauge.h @ 328:4fe5400567e7 I2C_Improvment

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Set I2C speed to 88kHz, use digital filter only and reworked idle clock recovery The errata describes a possible problem in operation between 88kHz and 100kHz => Set speed as recommended as work around. Based on reference implementation only one filter should be use. Choice was digital because only drawback is lag of wakeup functionality which is not used I2C communication may be randomly interrupted e.g. by a RTE reset or firmware update => reworked recovery function to get I2C devices in idle state again (Clk and SDA HIGH)
author ideenmodellierer
date Wed, 17 Jul 2019 22:42:15 +0200
parents 5f11787b4f42
children 2defc8cd93ce
line wrap: on
line source

/**
  ******************************************************************************
  * @file    batteryGasGauge.h
  * @author  heinrichs weikamp gmbh
  * @version V0.0.1
  * @date    09-Dec-2014
  * @brief	 LTC2942
  *           
  @verbatim                 
  ============================================================================== 
                        ##### How to use #####
  ============================================================================== 
  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
  *
  ******************************************************************************
  */ 

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef BATTERY_GAS_GAUGE_H
#define BATTERY_GAS_GAUGE_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/

void init_battery_gas_gauge(void);

float get_voltage(void);
float get_charge(void);

void battery_gas_gauge_get_data(void);
void battery_gas_gauge_set_charge_full(void);
void battery_gas_gauge_set(float percentage);

#ifdef __cplusplus
}
#endif

#endif /* BATTERY_GAS_GAUGE_H */

/************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/