Mercurial > public > ostc4
view Small_CPU/Src/i2c.c @ 859:d32901746950 Evo_2_23
Improvment battery charger visualization:
In the previous version the green flash (charge complete) was shown even battery had not reached 100% charge. Root cause was that the pin signaling the end of charge could be raised for other reasons then a full battery. The new version will show the green flash only in case the battery is rated as full.
In addition the graph visualization has been updated to continously progress. In the previous version it only progressed in case the charge value changed. Especially at charging start the charger is doing some battery evaluation which does not increase the charge state. In such a case the graph seemed to be frozen.
author | Ideenmodellierer |
---|---|
date | Tue, 07 May 2024 21:20:33 +0200 |
parents | 4fe5400567e7 |
children |
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#include "baseCPU2.h" #include "i2c.h" #include "scheduler.h" /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ // =============================================================================== // I2C addresses - see i2c.h // =============================================================================== I2C_HandleTypeDef I2cHandle; /* static void I2C_Error_Handler(void) { while(1) { } } */ GPIO_PinState HAL_I2C_Read_Data_PIN(void) { return HAL_GPIO_ReadPin(I2Cx_SDA_GPIO_PORT,I2Cx_SDA_PIN); } void HAL_I2C_Send_One_CLOCK(void) { HAL_GPIO_WritePin(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN, GPIO_PIN_RESET); HAL_Delay(1); HAL_GPIO_WritePin(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN, GPIO_PIN_SET); HAL_Delay(1); } GPIO_PinState MX_I2C1_TestAndClear(void) { GPIO_PinState retval; uint8_t repeatcnt = 3; I2C_DeInit(); HAL_I2C_ManualControl_MspInit(); /* The SDA line is expected to be HIGH if no com is pending => send dummy clock signals if that is not the case */ do { for(int i=0; i<20;i++) { if(HAL_I2C_Read_Data_PIN() == GPIO_PIN_RESET) HAL_I2C_Send_One_CLOCK(); else break; } retval = HAL_I2C_Read_Data_PIN(); }while ((repeatcnt-- > 0) && (retval != GPIO_PIN_SET)); return retval; } HAL_StatusTypeDef MX_I2C1_Init(void) { I2cHandle.Instance = I2Cx; I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2cHandle.Init.ClockSpeed = 88000; /* Reduced to avoid behavior described in errata: Mismatch on the “Setup time for a repeated Start condition” */ I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; I2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2; /* don't care if not in fast mode */ I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; I2cHandle.Init.OwnAddress1 = 0x01; /* don't care because of master mode */ /* According to documentation setting filters before I2C initialization is recommended */ /* HAL_I2CEx_AnalogFilter_Config(&I2cHandle, I2C_ANALOGFILTER_ENABLED); */ HAL_I2CEx_ConfigDigitalFilter(&I2cHandle,0x0F); global.I2C_SystemStatus = HAL_I2C_Init(&I2cHandle); if(global.dataSendToSlavePending) { scheduleSpecial_Evaluate_DataSendToSlave(); } return global.I2C_SystemStatus; } void I2C_DeInit(void) { HAL_I2C_DeInit(&I2cHandle); } static uint8_t i2c_errors = 0; void I2C_Error_count(void) { i2c_errors++; } HAL_StatusTypeDef I2C_Master_Transmit( uint16_t DevAddress, uint8_t *pData, uint16_t Size) { if(global.I2C_SystemStatus != HAL_OK) return global.I2C_SystemStatus; global.I2C_SystemStatus = HAL_I2C_Master_Transmit(&I2cHandle, DevAddress, pData, Size, 10); if(global.I2C_SystemStatus != HAL_OK) { I2C_Error_count(); } return global.I2C_SystemStatus; } HAL_StatusTypeDef I2C_Master_Receive( uint16_t DevAddress, uint8_t *pData, uint16_t Size) { if(global.I2C_SystemStatus != HAL_OK) return global.I2C_SystemStatus; global.I2C_SystemStatus = HAL_I2C_Master_Receive(&I2cHandle, DevAddress, pData, Size, 10); if(global.I2C_SystemStatus != HAL_OK) { I2C_Error_count(); } return global.I2C_SystemStatus; }