Mercurial > public > ostc4
view Small_CPU/Src/i2c.c @ 477:5e6a612d03b5 Improve_Button_Sleep
Only switch between "no fly" and "desaturation" in case there is desaturation time left:
In previous versions a switch between the times were performed even desaturation time were 0 causing an empty field (nothing) to be displayed. In that case the remaining no fly time is shown
Development option only: Show Pressure update for a short time in the custom field (as warning)
author | ideenmodellierer |
---|---|
date | Tue, 12 May 2020 23:03:29 +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; }