Mercurial > public > ostc4
view OtherSources/data_exchange_main_mini.c @ 218:ff59d1d07f9c Improve_IPC_Sync
Splitted 120 seconds UART timeout into chunks of 500ms
The UART connection via Bluetooth was realized using a receive call with 120 seconds timeout. By cancellation it seemed for the user as if the connection would have been aborted. In reality the received function keeped executing the wait for RX data till timeout occure. To avaoid this the timeout has been splitted into several calls with 500ms timeout => If the user disconnects by pressing "back" the COMM function is now ended.
author | ideenmodellierer |
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date | Sun, 31 Mar 2019 15:44:12 +0200 |
parents | 7801c5d8a562 |
children |
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/** ****************************************************************************** * @file data_exchange_main.c * @author heinrichs weikamp gmbh * @date 13-Oct-2014 * @version V0.0.2 * @since 27-May-2015 * @brief Communication with the second CPU == RTE system * @verbatim ============================================================================== ##### How to use ##### ============================================================================== ============================================================================== ##### Device Data ##### ============================================================================== main CPU always sends the device data info that it has at the moment on start it is INT32_MIN, INT32_MAX and 0 as initialized in data_central.c variable declaration second small CPU gets request to send its device data on receiption the data is merged with the data in externLogbookFlash, stored on the externLogbookFlash and from now on send to small CPU @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2014 heinrichs weikamp</center></h2> * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include <string.h> // for memcopy #include "stm32f4xx_hal.h" #include "stdio.h" #include "ostc.h" #include "data_central.h" #include "data_exchange_main.h" #include "base.h" #include "externLogbookFlash.h" /* Expoted variables --------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ SDataReceiveFromMaster dataOut; SDataExchangeSlaveToMaster dataIn; uint8_t data_old__lost_connection_to_slave_counter_temp = 0; /* Private types -------------------------------------------------------------*/ uint8_t DataEX_check_header_and_footer_ok(void); void DataEX_control_connection_while_asking_for_sleep(void); /* Exported functions --------------------------------------------------------*/ uint8_t DataEX_call(void) { DataEX_control_connection_while_asking_for_sleep(); for(int i=0;i<EXCHANGE_BUFFERSIZE;i++) *(uint8_t *)(((uint32_t)&dataOut) + i) = 0; dataOut.mode = MODE_SHUTDOWN; dataOut.header.checkCode[0] = 0xBB; dataOut.header.checkCode[1] = 0x01; dataOut.header.checkCode[2] = 0x01; dataOut.header.checkCode[3] = 0xBB; dataOut.footer.checkCode[0] = 0xF4; dataOut.footer.checkCode[1] = 0xF3; dataOut.footer.checkCode[2] = 0xF2; dataOut.footer.checkCode[3] = 0xF1; HAL_GPIO_WritePin(SMALLCPU_CSB_GPIO_PORT,SMALLCPU_CSB_PIN,GPIO_PIN_SET); delayMicros(10); if(data_old__lost_connection_to_slave_counter_temp >= 3) { data_old__lost_connection_to_slave_counter_temp = 0; } else { HAL_GPIO_WritePin(SMALLCPU_CSB_GPIO_PORT,SMALLCPU_CSB_PIN,GPIO_PIN_RESET); } HAL_SPI_TransmitReceive_DMA(&cpu2DmaSpi, (uint8_t *)&dataOut, (uint8_t *)&dataIn, EXCHANGE_BUFFERSIZE+1); return 1; } void DataEX_control_connection_while_asking_for_sleep(void) { if(!DataEX_check_header_and_footer_ok()) { data_old__lost_connection_to_slave_counter_temp += 1; } } uint8_t DataEX_check_header_and_footer_ok(void) { if(dataIn.header.checkCode[0] != 0xA1) return 0; if(dataIn.header.checkCode[1] != 0xA2) return 0; if(dataIn.header.checkCode[2] != 0xA3) return 0; if(dataIn.header.checkCode[3] != 0xA4) return 0; if(dataIn.footer.checkCode[0] != 0xE1) return 0; if(dataIn.footer.checkCode[1] != 0xE2) return 0; if(dataIn.footer.checkCode[2] != 0xE3) return 0; if(dataIn.footer.checkCode[3] != 0xE4) return 0; return 1; }