Mercurial > public > ostc4
view OtherSources/data_exchange_main_mini.c @ 421:3f7d80f37bfc ImprovmentNVM_2
Enable sequentionel writing of device data:
DeviceData was always written to the start of the the DD ringbuffer causing everytime a sector erase delay (~200ms). To avoid this the ring buffer functionality has been activated.
To be backward compatible the latest DD set will be written to DD ring buffer start at shutdown time.
In case of a reset the firmware scans for the latest DD block and restores its content giving the same data consistency intervall (10 minutes) as the previous implementation without having the 200ms penality for sector erases
author | ideenmodellierer |
---|---|
date | Mon, 10 Feb 2020 19:25:09 +0100 |
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; }