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view Small_CPU/Src/uartProtocol_Sentinel.c @ 954:4e4fbd73e329 Evo_2_23

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Slow exit graph draw normal ascent if slow exit is inactive: In previous version no graph was drawn at all if the minumum activation time (15 minutes) of the slow exit function was not reached. In the new version the normal ascent graph will be shown in case the slow exit was not activated yet.
author Ideenmodellierer
date Wed, 01 Jan 2025 17:30:50 +0100
parents effadaa3a1f7
children
line wrap: on
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/**
  ******************************************************************************
  * @file    uartProtocol_Co2.c
  * @author  heinrichs weikamp gmbh
  * @version V0.0.1
  * @date    15-Jan-2024
  * @brief   Interface functionality to read data from Sentinel rebreather
  *
  @verbatim


  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2024 heinrichs weikamp</center></h2>
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/

#include <string.h>
#include <uartProtocol_Sentinel.h>
#include "uart.h"
#include "externalInterface.h"


#ifdef ENABLE_SENTINEL_MODE
static uint8_t SentinelConnected = 0;						/* Binary indicator if a sensor is connected or not */
static receiveStateSentinel_t rxState = SENTRX_Ready;

extern sUartComCtrl Uart1Ctrl;

void ConvertByteToHexString(uint8_t byte, char* str)
{
	uint8_t worker = 0;
	uint8_t digit = 0;
	uint8_t digitCnt = 1;

	worker = byte;
	while((worker!=0) && (digitCnt != 255))
	{
		digit = worker % 16;
		if( digit < 10)
		{
			digit += '0';
		}
		else
		{
			digit += 'A' - 10;
		}
		str[digitCnt--]= digit;
		worker = worker / 16;
	}
}

void uartSentinel_Control(void)
{
	uint8_t activeSensor = externalInterface_GetActiveUartSensor();
	uartSentinelStatus_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);

	if(localComState == UART_SENTINEL_INIT)
	{
		SentinelConnected = 0;
		UART_StartDMA_Receiption(&Uart1Ctrl);
		localComState = UART_SENTINEL_IDLE;
	}
	externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
}

void uartSentinel_ProcessData(uint8_t data)
{
	static uint8_t dataType = 0;
	static uint32_t dataValue[3];
	static uint8_t dataValueIdx = 0;

	static uint8_t checksum = 0;
	static char checksum_str[]="00";

	uint8_t activeSensor = externalInterface_GetActiveUartSensor();
	uartSentinelStatus_t localComState = externalInterface_GetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET);

	switch(rxState)
	{
			case SENTRX_Ready:	if((data >= 'a') && (data <= 'z'))
							{
								rxState = SENTRX_DetectStart;
								checksum = 0;
							}
					break;

			case SENTRX_DetectStart: 	checksum += data;
									if(data == '1')
								 	{
								 		rxState = SENTRX_SelectData;
								 		dataType = 0xFF;

								 	}
									else
									{
										rxState = SENTRX_Ready;
									}
					break;

			case SENTRX_SelectData:		checksum += data;
									switch(data)
									{
										case 'T':	dataType = data;
											break;
										case '0': 	if(dataType != 0xff)
													{
														rxState = SENTRX_Data0;
														dataValueIdx = 0;
														dataValue[0] = 0;

													}
													else
													{
														rxState = SENTRX_Ready;
													}
											break;
										default:	rxState = SENTRX_Ready;
									}
					break;

			case SENTRX_Data0:
			case SENTRX_Data1:
			case SENTRX_Data2:
			case SENTRX_Data4:
			case SENTRX_Data5:
			case SENTRX_Data6:
			case SENTRX_Data8:
			case SENTRX_Data9:
			case SENTRX_Data10: checksum += data;
							if((data >= '0') && (data <= '9'))
							{
								dataValue[dataValueIdx] = dataValue[dataValueIdx] * 10 + (data - '0');
								rxState++;
							}
							else
							{
								rxState = SENTRX_Ready;
							}
					break;

			case SENTRX_Data3:
			case SENTRX_Data7:	checksum += data;
							if(data == '0')
							{
								rxState++;
								dataValueIdx++;
								dataValue[dataValueIdx] = 0;
							}
							else
							{
								rxState = SENTRX_Ready;
							}
					break;
			case SENTRX_Data11: rxState = SENTRX_DataComplete;
							ConvertByteToHexString(checksum,checksum_str);
							if(data == checksum_str[0])
							{
								rxState = SENTRX_DataComplete;
							}
							else
							{
								rxState = SENTRX_Ready;
							}

				break;

			case SENTRX_DataComplete:	if(data == checksum_str[1])
									{
										setExternalInterfaceChannel(0,(float)(dataValue[0] / 10.0));
										setExternalInterfaceChannel(1,(float)(dataValue[1] / 10.0));
										setExternalInterfaceChannel(2,(float)(dataValue[2] / 10.0));
										SentinelConnected = 1;
										localComState = UART_SENTINEL_OPERATING;
									}
									rxState = SENTRX_Ready;
				break;


			default:				rxState = SENTRX_Ready;
				break;

	}
	externalInterface_SetSensorState(activeSensor + EXT_INTERFACE_MUX_OFFSET,localComState);
}

uint8_t uartSentinel_isSensorConnected()
{
	return SentinelConnected;
}

#endif