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  1. /**
  2.   ******************************************************************************
  3.   * File Name          : main.c
  4.   * Description        : Main program body
  5.   ******************************************************************************
  6.   *
  7.   * COPYRIGHT(c) 2017 STMicroelectronics
  8.   *
  9.   * Redistribution and use in source and binary forms, with or without modification,
  10.   * are permitted provided that the following conditions are met:
  11.   *   1. Redistributions of source code must retain the above copyright notice,
  12.   *      this list of conditions and the following disclaimer.
  13.   *   2. Redistributions in binary form must reproduce the above copyright notice,
  14.   *      this list of conditions and the following disclaimer in the documentation
  15.   *      and/or other materials provided with the distribution.
  16.   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  17.   *      may be used to endorse or promote products derived from this software
  18.   *      without specific prior written permission.
  19.   *
  20.   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  21.   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22.   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  23.   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  24.   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25.   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  26.   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  27.   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28.   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29.   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30.   *
  31.   ******************************************************************************
  32.   */
  33. /* Includes ------------------------------------------------------------------*/
  34. #include "stm32l1xx_hal.h"
  35.  
  36. /* USER CODE BEGIN Includes */
  37. #include "serial.h"
  38. #include "plx.h"
  39. #include "misc.h"
  40. /* USER CODE END Includes */
  41.  
  42. /* Private variables ---------------------------------------------------------*/
  43. ADC_HandleTypeDef hadc;
  44. DMA_HandleTypeDef hdma_adc;
  45.  
  46. SPI_HandleTypeDef hspi1;
  47.  
  48. TIM_HandleTypeDef htim2;
  49. TIM_HandleTypeDef htim6;
  50.  
  51. UART_HandleTypeDef huart1;
  52. UART_HandleTypeDef huart2;
  53.  
  54. /* USER CODE BEGIN PV */
  55. /* Private variables ---------------------------------------------------------*/
  56.  
  57. // with a dwell angle of 45 degrees , 4 cylinders and a maximum RPM of 5000
  58. // freq = 5000/60 * 2 = 166Hz. Because the breaker might bounce , we accept the first pulse longer than 1/300 of a second as being a proper closure .
  59. // the TIM2 counter counts in 10uS increments,
  60. #define BREAKER_MIN (RPM_COUNT_RATE/300)
  61.  
  62. // wait for about 1 second to decide whether or not starter is on
  63.  
  64. #define STARTER_LIMIT 10
  65.  
  66. volatile char TimerFlag = 0;
  67.  
  68. volatile char NoSerialInCTR = 0; // Missing characters coming in on USART1
  69. volatile char NoSerialIn = 0;
  70.  
  71. // storage for ADC
  72. uint16_t ADC_Samples[6];
  73.  
  74. #define Scale 1024.0
  75. const float ADC_Scale = 3.3 / (Scale * 4096.0); // convert to a voltage
  76.  
  77. uint32_t FILT_Samples[6]; // filtered ADC samples * 1024
  78. // Rev counter processing from original RevCounter Project
  79. unsigned int RPM_Diff = 0;
  80. unsigned int RPM_Count_Latch = 0;
  81. // accumulators
  82. unsigned int RPM_Pulsecount = 0;
  83. unsigned int RPM_FilteredWidth = 0;
  84.  
  85. unsigned int Coded_RPM = 0;
  86. unsigned int Coded_CHT = 0;
  87.  
  88. uint32_t Power_CHT_Timer;
  89.  
  90. uint16_t Starter_Debounce = 0;
  91.  
  92. /* USER CODE END PV */
  93.  
  94. /* Private function prototypes -----------------------------------------------*/
  95. void SystemClock_Config(void);
  96. void Error_Handler(void);
  97. static void MX_GPIO_Init(void);
  98. static void MX_DMA_Init(void);
  99. static void MX_ADC_Init(void);
  100. static void MX_SPI1_Init(void);
  101. static void MX_TIM2_Init(void);
  102. static void MX_TIM6_Init(void);
  103. static void MX_USART2_UART_Init(void);
  104. static void MX_USART1_UART_Init(void);
  105.  
  106. /* USER CODE BEGIN PFP */
  107. /* Private function prototypes -----------------------------------------------*/
  108.  
  109. /* USER CODE END PFP */
  110.  
  111. /* USER CODE BEGIN 0 */
  112.  
  113. void plx_sendword(int x)
  114. {
  115.         PutCharSerial(&uc1, ((x) >> 6) & 0x3F);
  116.         PutCharSerial(&uc1, (x) & 0x3F);
  117. }
  118.  
  119. void init_ADC_filter()
  120. {
  121.         int i;
  122.         for (i = 0; i < 6; i++)
  123.         {
  124.                 FILT_Samples[i] = 0;
  125.         }
  126. }
  127.  
  128. void filter_ADC_samples()
  129. {
  130.         int i;
  131.         for (i = 0; i < 6; i++)
  132.         {
  133.                 FILT_Samples[i] += (ADC_Samples[i] * Scale - FILT_Samples[i]) / 2;
  134.         }
  135. }
  136.  
  137. void ProcessRPM(int instance)
  138. {
  139. // compute the timer values
  140. // snapshot timers
  141.         unsigned long RPM_Pulsewidth;
  142.         unsigned long RPM_Count_Val;
  143.         __disable_irq(); // copy the counter value
  144.         RPM_Count_Val = RPM_Count;
  145.         __enable_irq();
  146. // do calculations
  147. // if there is only one entry, cannot get difference
  148.         if (RPM_Count_Latch != RPM_Count_Val)
  149.         {
  150.                 while (1)
  151.                 {
  152.                         unsigned int base_time;
  153.                         unsigned int new_time;
  154.                         // if we are at N-1, stop.
  155.                         unsigned int next_count = RPM_Count_Latch + 1;
  156.                         if (next_count == RPM_SAMPLES)
  157.                         {
  158.                                 next_count = 0;
  159.                         }
  160.                         if (next_count == RPM_Count_Val)
  161.                         {
  162.                                 break;
  163.                         }
  164.                         base_time = RPM_Time[RPM_Count_Latch];
  165.                         new_time = RPM_Time[next_count];
  166.                         RPM_Count_Latch = next_count;
  167.                         if (new_time > base_time)
  168.                         {
  169.                                 RPM_Pulsewidth = new_time - base_time; // not wrapped
  170.                         }
  171.                         else
  172.                         {
  173.                                 RPM_Pulsewidth = new_time - base_time + 65536; // deal with wrapping
  174.                         }
  175.  
  176.                         RPM_Diff += RPM_Pulsewidth;
  177.                         // need to check if this is a long pulse. If it is, keep the answer
  178.                         if (RPM_Pulsewidth > BREAKER_MIN)
  179.                         {
  180.                                 RPM_Pulsecount++; // count one pulse
  181.                                 RPM_FilteredWidth += RPM_Diff; // add its width to the accumulator
  182.                                 RPM_Diff = 0; // reset accumulator of all the narrow widths
  183.                         }
  184.                 }
  185.  
  186.         }
  187.  
  188.         if (RPM_Pulsecount > 0)
  189.         {
  190.                 // now have time for N pulses in clocks
  191.                 // need to scale by 19.55: one unit is 19.55 RPM
  192.                 // 1Hz is 60 RPM
  193.                 float new_RPM = (30.0 / 19.55 * RPM_Pulsecount * RPM_COUNT_RATE)
  194.                                 / (RPM_FilteredWidth) + 0.5;
  195.  
  196.                 Coded_RPM += (new_RPM * Scale - Coded_RPM) / 4;
  197.  
  198. #if !defined MY_DEBUG
  199.                 // reset here unless we want to debug
  200.                 RPM_Pulsecount = 0;
  201.                 RPM_FilteredWidth = 0;
  202. #endif
  203.         }
  204.  
  205. // send the current RPM *calculation
  206.         plx_sendword(PLX_RPM);
  207.         PutCharSerial(&uc1, instance);
  208.         plx_sendword(Coded_RPM / Scale);
  209. }
  210.  
  211. // this uses a MAX6675 which is a simple 16 bit read
  212. // SPI is configured for 8 bits so I can use an OLED display if I need it
  213. // must wait > 0.22 seconds between conversion attempts as this is the measurement time
  214. //
  215.  
  216. FunctionalState CHT_Enable = ENABLE;
  217.  
  218. #define CORR 3
  219.  
  220. uint8_t CHT_Timer[2] =
  221. { 0, 0 }; // two temperature readings : from two sensors
  222.  
  223.  
  224. uint16_t CHT_Observations[2] =
  225. { 0, 0 };
  226.  
  227. void ProcessCHT(int instance)
  228. {
  229.         uint8_t buffer[2];
  230.         if (instance > 2)
  231.                 return;
  232.         CHT_Timer[instance]++;
  233.         if ((CHT_Enable == ENABLE) && (CHT_Timer[instance] >= 4)) // every 300 milliseconds
  234.         {
  235.  
  236.                 CHT_Timer[instance] = 0;
  237.  
  238.                 uint16_t Pin = (instance == 0) ? SPI_NS_Temp_Pin : SPI_NS_Temp2_Pin;
  239.  
  240.                 HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, Pin, GPIO_PIN_RESET);
  241.  
  242.                 HAL_SPI_Receive(&hspi1, buffer, 2, 2);
  243.  
  244.                 HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, Pin, GPIO_PIN_SET);
  245.  
  246.                 uint16_t obs = (buffer[0] << 8) | buffer[1];
  247.  
  248.                 // good observation if the status bit is clear, and the reading is less than 1023
  249.  
  250.                 uint16_t temp_c = obs>>5;
  251.  
  252.                 uint8_t good = ((obs & 4) == 0) && (temp_c > 0) && (temp_c < 250);
  253.  
  254.                 if (good)
  255.                 {
  256.                         CHT_Observations[instance]=temp_c;
  257.  
  258.                 }
  259.  
  260.         }
  261.  
  262.         plx_sendword(PLX_X_CHT);
  263.         PutCharSerial(&uc1, instance);
  264.         plx_sendword(CHT_Observations[instance]);
  265.  
  266. }
  267.  
  268. void EnableCHT(FunctionalState state)
  269.  
  270. {
  271.         GPIO_InitTypeDef GPIO_InitStruct;
  272.  
  273.         CHT_Enable = state;
  274.  
  275.  
  276.         /* enable SPI in live mode : assume it and its GPIOs are already initialised in SPI mode */
  277.         if (state == ENABLE)
  278.         {
  279.                 HAL_GPIO_WritePin(ENA_AUX_5V_GPIO_Port, ENA_AUX_5V_Pin, GPIO_PIN_SET );
  280.                 HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, SPI_NS_Temp_Pin, GPIO_PIN_SET);
  281.                 HAL_GPIO_WritePin(SPI_NS_Temp2_GPIO_Port, SPI_NS_Temp2_Pin,
  282.                                 GPIO_PIN_SET);
  283.  
  284.                 /* put the SPI pins back into SPI AF mode */
  285.                 GPIO_InitStruct.Pin = SPI1_MOSI_Pin | SPI1_MISO_Pin | SPI1_SCK_Pin;
  286.                 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  287.                 GPIO_InitStruct.Pull = GPIO_NOPULL;
  288.                 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  289.                 GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
  290.                 HAL_GPIO_Init(SPI1_SCK_GPIO_Port, &GPIO_InitStruct);
  291.  
  292.         }
  293.         else
  294.         {
  295.                 /*  Power down the SPI interface taking signals all low */
  296.                 HAL_GPIO_WritePin(ENA_AUX_5V_GPIO_Port, ENA_AUX_5V_Pin, GPIO_PIN_RESET );
  297.                 HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, SPI_NS_Temp_Pin,
  298.                                 GPIO_PIN_RESET);
  299.                 HAL_GPIO_WritePin(SPI_NS_Temp2_GPIO_Port, SPI_NS_Temp2_Pin,
  300.                                 GPIO_PIN_RESET);
  301.  
  302.                 HAL_GPIO_WritePin(SPI1_SCK_GPIO_Port,
  303.                                 SPI1_MOSI_Pin | SPI1_MISO_Pin | SPI1_SCK_Pin, GPIO_PIN_RESET);
  304.  
  305.                 /* put the SPI pins back into GPIO mode */
  306.                 GPIO_InitStruct.Pin = SPI1_MOSI_Pin | SPI1_MISO_Pin | SPI1_SCK_Pin;
  307.                 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  308.                 GPIO_InitStruct.Pull = GPIO_NOPULL;
  309.                 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  310.                 HAL_GPIO_Init(SPI1_SCK_GPIO_Port, &GPIO_InitStruct);
  311.  
  312.         }
  313.  
  314. }
  315.  
  316. // 1023 is 20.00 volts.
  317. void ProcessBatteryVoltage(int instance)
  318. {
  319.         float reading = FILT_Samples[instance] * ADC_Scale;
  320.         reading = reading * 7.8125; // real voltage
  321.         reading = reading * 51.15; // 1023/20
  322.  
  323.         plx_sendword(PLX_Volts);
  324.         PutCharSerial(&uc1, instance);
  325.         plx_sendword((uint16_t) reading);
  326.  
  327. }
  328.  
  329. /****!
  330.  * @brief this reads the reference voltage within the STM32L151
  331.  * Powers up reference voltage and temperature sensor, waits 3mS  and takes reading
  332.  * Requires that the ADC be powered up
  333.  */
  334.  
  335. uint32_t ADC_VREF_MV = 3300;           // 3.300V typical
  336. const uint16_t STM32REF_MV = 1224;           // 1.224V typical
  337.  
  338. void CalibrateADC(void)
  339. {
  340.         uint32_t adc_val = FILT_Samples[5];       // as set up in device config
  341.         ADC_VREF_MV = (STM32REF_MV * 4096) / adc_val;
  342. }
  343.  
  344. void ProcessCPUTemperature(int instance)
  345. {
  346.         int32_t temp_val;
  347.         uint16_t TS_CAL30 = *(uint16_t *) (0x1FF8007AUL); /* ADC reading for temperature sensor at 30 degrees C with Vref = 3000mV */
  348.         uint16_t TS_CAL110 = *(uint16_t *) (0x1FF8007EUL); /* ADC reading for temperature sensor at 110 degrees C with Vref = 3000mV */
  349.         /* get the ADC reading corresponding to ADC channel 16 after turning on the ADC */
  350.  
  351.         temp_val = FILT_Samples[5];
  352.  
  353.         /* renormalise temperature value to account for different ADC Vref  : normalise to that which we would get for a 3000mV reference */
  354.         temp_val = temp_val * ADC_VREF_MV / (Scale * 3000UL);
  355.  
  356.         int32_t result = 800 * ((int32_t) temp_val - TS_CAL30);
  357.         result = result / (TS_CAL110 - TS_CAL30) + 300;
  358.  
  359.         if (result < 0)
  360.         {
  361.                 result = 0;
  362.         }
  363.         plx_sendword(PLX_FluidTemp);
  364.         PutCharSerial(&uc1, instance);
  365.         plx_sendword(result / 10);
  366.  
  367. }
  368.  
  369. // the MAP sensor is giving us a reading of
  370. // 4.6 volts for 1019mB or 2.27 volts at the ADC input (resistive divider by 2.016)
  371. // I believe the sensor reads  4.5V at 1000kPa and 0.5V at  0kPa
  372.  
  373. void ProcessMAP(int instance)
  374. {
  375. // Using ADC_Samples[3] as the MAP input
  376.         float reading = FILT_Samples[3] * ADC_Scale;
  377.         reading = reading * 2.016;      // real voltage
  378.         reading = (reading) * 1000 / 4.5; // do not assume 0.5 volt offset : reading from 0 to 4.5 instead of 0.5 to 4.5
  379.         plx_sendword(PLX_MAP);
  380.         PutCharSerial(&uc1, instance);
  381.         plx_sendword((uint16_t) reading);
  382.  
  383. }
  384.  
  385. // the Oil pressi sensor is giving us a reading of
  386. // 4.5 volts for 100 PSI or  2.25 volts at the ADC input (resistive divider by 2.016)
  387. // I believe the sensor reads  4.5V at 100PSI and 0.5V at  0PSI
  388. // an observation of 1024 is 200PSI, so observation of 512 is 100 PSI.
  389.  
  390. void ProcessOilPress(int instance)
  391. {
  392. // Using ADC_Samples[2] as the MAP input
  393.         float reading = FILT_Samples[2] * ADC_Scale;
  394.         reading = reading * 2.00; // real voltage
  395.         reading = (reading - 0.5) * 512 / 4;  // this is 1023 * 100/200
  396.  
  397.         plx_sendword(PLX_FluidPressure);
  398.         PutCharSerial(&uc1, instance);
  399.         plx_sendword((uint16_t) reading);
  400.  
  401. }
  402.  
  403. void ProcessTiming(int instance)
  404. {
  405.         plx_sendword(PLX_Timing);
  406.         PutCharSerial(&uc1, instance);
  407.         plx_sendword(64 - 15); // make it negative
  408. }
  409.  
  410. /* USER CODE END 0 */
  411.  
  412. int main(void)
  413. {
  414.  
  415.   /* USER CODE BEGIN 1 */
  416.  
  417.   /* USER CODE END 1 */
  418.  
  419.   /* MCU Configuration----------------------------------------------------------*/
  420.  
  421.   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  422.   HAL_Init();
  423.  
  424.   /* Configure the system clock */
  425.   SystemClock_Config();
  426.  
  427.   /* Initialize all configured peripherals */
  428.   MX_GPIO_Init();
  429.   MX_DMA_Init();
  430.   MX_ADC_Init();
  431.   MX_SPI1_Init();
  432.   MX_TIM2_Init();
  433.   MX_TIM6_Init();
  434.   MX_USART2_UART_Init();
  435.   MX_USART1_UART_Init();
  436.  
  437.   /* USER CODE BEGIN 2 */
  438.         HAL_MspInit();
  439.  
  440. // Not using HAL USART code
  441.         __HAL_RCC_USART1_CLK_ENABLE()
  442.         ; // PLX comms port
  443.         __HAL_RCC_USART2_CLK_ENABLE()
  444.         ;  // Debug comms port
  445.         /* setup the USART control blocks */
  446.         init_usart_ctl(&uc1, huart1.Instance);
  447.         init_usart_ctl(&uc2, huart2.Instance);
  448.  
  449.         EnableSerialRxInterrupt(&uc1);
  450.         EnableSerialRxInterrupt(&uc2);
  451.  
  452.         HAL_SPI_MspInit(&hspi1);
  453.  
  454.         HAL_ADC_MspInit(&hadc);
  455.  
  456.         HAL_ADC_Start_DMA(&hadc, ADC_Samples, 6);
  457.  
  458.         HAL_ADC_Start_IT(&hadc);
  459.  
  460.         HAL_TIM_Base_MspInit(&htim6);
  461.         HAL_TIM_Base_Start_IT(&htim6);
  462.  
  463. // initialise all the STMCubeMX stuff
  464.         HAL_TIM_Base_MspInit(&htim2);
  465. // Start the counter
  466.         HAL_TIM_Base_Start(&htim2);
  467. // Start the input capture and the interrupt
  468.         HAL_TIM_IC_Start_IT(&htim2, TIM_CHANNEL_1);
  469.  
  470.         init_ADC_filter();
  471.  
  472.         uint32_t Ticks = HAL_GetTick() + 100;
  473.         int CalCounter = 0;
  474.  
  475.         Power_CHT_Timer = HAL_GetTick() + 10000; /* wait 10 seconds before powering up the CHT sensor */
  476.  
  477.  
  478.  
  479.  
  480.   /* USER CODE END 2 */
  481.  
  482.   /* Infinite loop */
  483.   /* USER CODE BEGIN WHILE */
  484.         while (1)
  485.         {
  486.   /* USER CODE END WHILE */
  487.  
  488.   /* USER CODE BEGIN 3 */
  489.  
  490.                 if (HAL_GetTick() > Ticks)
  491.                 {
  492.                         Ticks += 100;
  493.                         filter_ADC_samples();
  494.                         // delay to calibrate ADC
  495.                         if (CalCounter < 1000)
  496.                         {
  497.                                 CalCounter += 100;
  498.                         }
  499.  
  500.                         if (CalCounter == 900)
  501.                         {
  502.                                 CalibrateADC();
  503.                         }
  504.                 }
  505.                 /* when the starter motor is on then power down the CHT sensors as they seem to fail */
  506.  
  507.                 if (HAL_GPIO_ReadPin(STARTER_ON_GPIO_Port, STARTER_ON_Pin)
  508.                                         == GPIO_PIN_RESET )
  509.                 {
  510.                         if(Starter_Debounce < STARTER_LIMIT)
  511.                         {
  512.                                 Starter_Debounce++;
  513.                         }
  514.                 }
  515.                 else
  516.                 {
  517.                         if(Starter_Debounce > 0)
  518.                         {
  519.                                 Starter_Debounce --;
  520.                         }
  521.                 }
  522.  
  523.                 if (Starter_Debounce == STARTER_LIMIT)
  524.                 {
  525.                         EnableCHT(DISABLE);
  526.                         Power_CHT_Timer = HAL_GetTick() + 5000;
  527.                 }
  528.                 else
  529.                 /* if the Power_CHT_Timer is set then wait for it to timeout, then power up CHT */
  530.                 {
  531.                         if ((Power_CHT_Timer > 0) && (HAL_GetTick() > Power_CHT_Timer))
  532.                         {
  533.                                 EnableCHT(ENABLE);
  534.                                 Power_CHT_Timer = 0;
  535.                         }
  536.                 }
  537.  
  538.                 // check to see if we have any incoming data, copy and append if so, if no data then create our own frames.
  539.                 int c;
  540.                 char send = 0;
  541.  
  542.                 // poll the  input for a stop bit or timeout
  543.                 if (PollSerial(&uc1))
  544.                 {
  545.                         c = GetCharSerial(&uc1);
  546.                         if (c != PLX_Stop)
  547.                         {
  548.                                 PutCharSerial(&uc1, c); // echo all but the stop bit
  549.                         }
  550.                         else
  551.                         { // must be a stop character
  552.                                 send = 1; // start our sending process.
  553.                         }
  554.                 }
  555.  
  556.                 // sort out auto-sending
  557.                 if (TimerFlag)
  558.                 {
  559.                         TimerFlag = 0;
  560.                         if (NoSerialIn)
  561.                         {
  562.                                 PutCharSerial(&uc1, PLX_Start);
  563.                                 send = 1;
  564.                         }
  565.                 }
  566.                 if (send)
  567.                 {
  568.                         send = 0;
  569.  
  570.                         uint16_t val;
  571.                         val = __HAL_TIM_GET_COMPARE(&htim2,TIM_CHANNEL_1);
  572.                         PutCharSerial(&uc2, (val & 31) + 32);
  573.  
  574.                         // send the observations
  575.                         ProcessRPM(0);
  576.                         ProcessCHT(0);
  577.                         //      ProcessCHT(1);
  578.                         ProcessBatteryVoltage(0); // Batt 1
  579.                         ProcessBatteryVoltage(1); // Batt 2
  580.                         ProcessCPUTemperature(0); //  built in temperature sensor
  581.  
  582.                         ProcessMAP(0);
  583.                         ProcessOilPress(0);
  584.  
  585.                         PutCharSerial(&uc1, PLX_Stop);
  586.                 }
  587.         }
  588.   /* USER CODE END 3 */
  589.  
  590. }
  591.  
  592. /** System Clock Configuration
  593. */
  594. void SystemClock_Config(void)
  595. {
  596.  
  597.   RCC_OscInitTypeDef RCC_OscInitStruct;
  598.   RCC_ClkInitTypeDef RCC_ClkInitStruct;
  599.  
  600.   __HAL_RCC_PWR_CLK_ENABLE();
  601.  
  602.   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  603.  
  604.   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  605.   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  606.   RCC_OscInitStruct.HSICalibrationValue = 16;
  607.   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  608.   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  609.   RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL6;
  610.   RCC_OscInitStruct.PLL.PLLDIV = RCC_PLL_DIV3;
  611.   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  612.   {
  613.     Error_Handler();
  614.   }
  615.  
  616.   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
  617.                               |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  618.   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  619.   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  620.   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  621.   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  622.   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  623.   {
  624.     Error_Handler();
  625.   }
  626.  
  627.   HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
  628.  
  629.   HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
  630.  
  631.   /* SysTick_IRQn interrupt configuration */
  632.   HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
  633. }
  634.  
  635. /* ADC init function */
  636. static void MX_ADC_Init(void)
  637. {
  638.  
  639.   ADC_ChannelConfTypeDef sConfig;
  640.  
  641.     /**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
  642.     */
  643.   hadc.Instance = ADC1;
  644.   hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
  645.   hadc.Init.Resolution = ADC_RESOLUTION_12B;
  646.   hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  647.   hadc.Init.ScanConvMode = ADC_SCAN_ENABLE;
  648.   hadc.Init.EOCSelection = ADC_EOC_SEQ_CONV;
  649.   hadc.Init.LowPowerAutoWait = ADC_AUTOWAIT_DISABLE;
  650.   hadc.Init.LowPowerAutoPowerOff = ADC_AUTOPOWEROFF_DISABLE;
  651.   hadc.Init.ChannelsBank = ADC_CHANNELS_BANK_A;
  652.   hadc.Init.ContinuousConvMode = DISABLE;
  653.   hadc.Init.NbrOfConversion = 6;
  654.   hadc.Init.DiscontinuousConvMode = DISABLE;
  655.   hadc.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T6_TRGO;
  656.   hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
  657.   hadc.Init.DMAContinuousRequests = ENABLE;
  658.   if (HAL_ADC_Init(&hadc) != HAL_OK)
  659.   {
  660.     Error_Handler();
  661.   }
  662.  
  663.     /**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
  664.     */
  665.   sConfig.Channel = ADC_CHANNEL_10;
  666.   sConfig.Rank = 1;
  667.   sConfig.SamplingTime = ADC_SAMPLETIME_384CYCLES;
  668.   if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  669.   {
  670.     Error_Handler();
  671.   }
  672.  
  673.     /**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
  674.     */
  675.   sConfig.Channel = ADC_CHANNEL_11;
  676.   sConfig.Rank = 2;
  677.   if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  678.   {
  679.     Error_Handler();
  680.   }
  681.  
  682.     /**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
  683.     */
  684.   sConfig.Channel = ADC_CHANNEL_12;
  685.   sConfig.Rank = 3;
  686.   if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  687.   {
  688.     Error_Handler();
  689.   }
  690.  
  691.     /**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
  692.     */
  693.   sConfig.Channel = ADC_CHANNEL_13;
  694.   sConfig.Rank = 4;
  695.   if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  696.   {
  697.     Error_Handler();
  698.   }
  699.  
  700.     /**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
  701.     */
  702.   sConfig.Channel = ADC_CHANNEL_TEMPSENSOR;
  703.   sConfig.Rank = 5;
  704.   if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  705.   {
  706.     Error_Handler();
  707.   }
  708.  
  709.     /**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
  710.     */
  711.   sConfig.Channel = ADC_CHANNEL_VREFINT;
  712.   sConfig.Rank = 6;
  713.   if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
  714.   {
  715.     Error_Handler();
  716.   }
  717.  
  718. }
  719.  
  720. /* SPI1 init function */
  721. static void MX_SPI1_Init(void)
  722. {
  723.  
  724.   hspi1.Instance = SPI1;
  725.   hspi1.Init.Mode = SPI_MODE_MASTER;
  726.   hspi1.Init.Direction = SPI_DIRECTION_2LINES;
  727.   hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
  728.   hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
  729.   hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
  730.   hspi1.Init.NSS = SPI_NSS_SOFT;
  731.   hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
  732.   hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
  733.   hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
  734.   hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
  735.   hspi1.Init.CRCPolynomial = 10;
  736.   if (HAL_SPI_Init(&hspi1) != HAL_OK)
  737.   {
  738.     Error_Handler();
  739.   }
  740.  
  741. }
  742.  
  743. /* TIM2 init function */
  744. static void MX_TIM2_Init(void)
  745. {
  746.  
  747.   TIM_ClockConfigTypeDef sClockSourceConfig;
  748.   TIM_MasterConfigTypeDef sMasterConfig;
  749.   TIM_IC_InitTypeDef sConfigIC;
  750.  
  751.   htim2.Instance = TIM2;
  752.   htim2.Init.Prescaler = 320;
  753.   htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
  754.   htim2.Init.Period = 65535;
  755.   htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  756.   if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
  757.   {
  758.     Error_Handler();
  759.   }
  760.  
  761.   sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
  762.   if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
  763.   {
  764.     Error_Handler();
  765.   }
  766.  
  767.   if (HAL_TIM_IC_Init(&htim2) != HAL_OK)
  768.   {
  769.     Error_Handler();
  770.   }
  771.  
  772.   sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
  773.   sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  774.   if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
  775.   {
  776.     Error_Handler();
  777.   }
  778.  
  779.   sConfigIC.ICPolarity = TIM_INPUTCHANNELPOLARITY_RISING;
  780.   sConfigIC.ICSelection = TIM_ICSELECTION_DIRECTTI;
  781.   sConfigIC.ICPrescaler = TIM_ICPSC_DIV1;
  782.   sConfigIC.ICFilter = 0;
  783.   if (HAL_TIM_IC_ConfigChannel(&htim2, &sConfigIC, TIM_CHANNEL_1) != HAL_OK)
  784.   {
  785.     Error_Handler();
  786.   }
  787.  
  788. }
  789.  
  790. /* TIM6 init function */
  791. static void MX_TIM6_Init(void)
  792. {
  793.  
  794.   TIM_MasterConfigTypeDef sMasterConfig;
  795.  
  796.   htim6.Instance = TIM6;
  797.   htim6.Init.Prescaler = 320;
  798.   htim6.Init.CounterMode = TIM_COUNTERMODE_UP;
  799.   htim6.Init.Period = 9999;
  800.   if (HAL_TIM_Base_Init(&htim6) != HAL_OK)
  801.   {
  802.     Error_Handler();
  803.   }
  804.  
  805.   sMasterConfig.MasterOutputTrigger = TIM_TRGO_UPDATE;
  806.   sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  807.   if (HAL_TIMEx_MasterConfigSynchronization(&htim6, &sMasterConfig) != HAL_OK)
  808.   {
  809.     Error_Handler();
  810.   }
  811.  
  812. }
  813.  
  814. /* USART1 init function */
  815. static void MX_USART1_UART_Init(void)
  816. {
  817.  
  818.   huart1.Instance = USART1;
  819.   huart1.Init.BaudRate = 19200;
  820.   huart1.Init.WordLength = UART_WORDLENGTH_8B;
  821.   huart1.Init.StopBits = UART_STOPBITS_1;
  822.   huart1.Init.Parity = UART_PARITY_NONE;
  823.   huart1.Init.Mode = UART_MODE_TX_RX;
  824.   huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  825.   huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  826.   if (HAL_UART_Init(&huart1) != HAL_OK)
  827.   {
  828.     Error_Handler();
  829.   }
  830.  
  831. }
  832.  
  833. /* USART2 init function */
  834. static void MX_USART2_UART_Init(void)
  835. {
  836.  
  837.   huart2.Instance = USART2;
  838.   huart2.Init.BaudRate = 115200;
  839.   huart2.Init.WordLength = UART_WORDLENGTH_8B;
  840.   huart2.Init.StopBits = UART_STOPBITS_1;
  841.   huart2.Init.Parity = UART_PARITY_NONE;
  842.   huart2.Init.Mode = UART_MODE_TX_RX;
  843.   huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  844.   huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  845.   if (HAL_UART_Init(&huart2) != HAL_OK)
  846.   {
  847.     Error_Handler();
  848.   }
  849.  
  850. }
  851.  
  852. /**
  853.   * Enable DMA controller clock
  854.   */
  855. static void MX_DMA_Init(void)
  856. {
  857.   /* DMA controller clock enable */
  858.   __HAL_RCC_DMA1_CLK_ENABLE();
  859.  
  860.   /* DMA interrupt init */
  861.   /* DMA1_Channel1_IRQn interrupt configuration */
  862.   HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
  863.   HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
  864.  
  865. }
  866.  
  867. /** Configure pins as
  868.         * Analog
  869.         * Input
  870.         * Output
  871.         * EVENT_OUT
  872.         * EXTI
  873.         * Free pins are configured automatically as Analog (this feature is enabled through
  874.         * the Code Generation settings)
  875. */
  876. static void MX_GPIO_Init(void)
  877. {
  878.  
  879.   GPIO_InitTypeDef GPIO_InitStruct;
  880.  
  881.   /* GPIO Ports Clock Enable */
  882.   __HAL_RCC_GPIOC_CLK_ENABLE();
  883.   __HAL_RCC_GPIOH_CLK_ENABLE();
  884.   __HAL_RCC_GPIOA_CLK_ENABLE();
  885.   __HAL_RCC_GPIOB_CLK_ENABLE();
  886.   __HAL_RCC_GPIOD_CLK_ENABLE();
  887.  
  888.   /*Configure GPIO pins : PC13 PC14 PC15 PC6
  889.                            PC7 PC8 PC9 PC11
  890.                            PC12 */
  891.   GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_6
  892.                           |GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_11
  893.                           |GPIO_PIN_12;
  894.   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  895.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  896.   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
  897.  
  898.   /*Configure GPIO pins : PH0 PH1 */
  899.   GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
  900.   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  901.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  902.   HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
  903.  
  904.   /*Configure GPIO pins : PA0 PA1 PA8 PA11
  905.                            PA12 */
  906.   GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_8|GPIO_PIN_11
  907.                           |GPIO_PIN_12;
  908.   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  909.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  910.   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  911.  
  912.   /*Configure GPIO pin : LED_Blink_Pin */
  913.   GPIO_InitStruct.Pin = LED_Blink_Pin;
  914.   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  915.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  916.   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  917.   HAL_GPIO_Init(LED_Blink_GPIO_Port, &GPIO_InitStruct);
  918.  
  919.   /*Configure GPIO pins : SPI_NSS1_Pin SPI1CD_Pin */
  920.   GPIO_InitStruct.Pin = SPI_NSS1_Pin|SPI1CD_Pin;
  921.   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  922.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  923.   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  924.   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
  925.  
  926.   /*Configure GPIO pins : SPI_RESET_Pin SPI_NS_Temp_Pin SPI_NS_Temp2_Pin ENA_AUX_5V_Pin */
  927.   GPIO_InitStruct.Pin = SPI_RESET_Pin|SPI_NS_Temp_Pin|SPI_NS_Temp2_Pin|ENA_AUX_5V_Pin;
  928.   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  929.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  930.   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  931.   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  932.  
  933.   /*Configure GPIO pins : PB11 PB12 PB13 PB14
  934.                            PB15 PB3 PB4 PB5
  935.                            PB6 PB7 PB8 PB9 */
  936.   GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14
  937.                           |GPIO_PIN_15|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5
  938.                           |GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9;
  939.   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  940.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  941.   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  942.  
  943.   /*Configure GPIO pin : STARTER_ON_Pin */
  944.   GPIO_InitStruct.Pin = STARTER_ON_Pin;
  945.   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  946.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  947.   HAL_GPIO_Init(STARTER_ON_GPIO_Port, &GPIO_InitStruct);
  948.  
  949.   /*Configure GPIO pin : PD2 */
  950.   GPIO_InitStruct.Pin = GPIO_PIN_2;
  951.   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  952.   GPIO_InitStruct.Pull = GPIO_NOPULL;
  953.   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
  954.  
  955.   /*Configure GPIO pin Output Level */
  956.   HAL_GPIO_WritePin(LED_Blink_GPIO_Port, LED_Blink_Pin, GPIO_PIN_RESET);
  957.  
  958.   /*Configure GPIO pin Output Level */
  959.   HAL_GPIO_WritePin(SPI_NSS1_GPIO_Port, SPI_NSS1_Pin, GPIO_PIN_SET);
  960.  
  961.   /*Configure GPIO pin Output Level */
  962.   HAL_GPIO_WritePin(SPI1CD_GPIO_Port, SPI1CD_Pin, GPIO_PIN_RESET);
  963.  
  964.   /*Configure GPIO pin Output Level */
  965.   HAL_GPIO_WritePin(GPIOB, SPI_RESET_Pin|SPI_NS_Temp2_Pin|ENA_AUX_5V_Pin, GPIO_PIN_RESET);
  966.  
  967.   /*Configure GPIO pin Output Level */
  968.   HAL_GPIO_WritePin(SPI_NS_Temp_GPIO_Port, SPI_NS_Temp_Pin, GPIO_PIN_SET);
  969.  
  970. }
  971.  
  972. /* USER CODE BEGIN 4 */
  973.  
  974. /* USER CODE END 4 */
  975.  
  976. /**
  977.   * @brief  This function is executed in case of error occurrence.
  978.   * @param  None
  979.   * @retval None
  980.   */
  981. void Error_Handler(void)
  982. {
  983.   /* USER CODE BEGIN Error_Handler */
  984.         /* User can add his own implementation to report the HAL error return state */
  985.         while (1)
  986.         {
  987.         }
  988.   /* USER CODE END Error_Handler */
  989. }
  990.  
  991. #ifdef USE_FULL_ASSERT
  992.  
  993. /**
  994.    * @brief Reports the name of the source file and the source line number
  995.    * where the assert_param error has occurred.
  996.    * @param file: pointer to the source file name
  997.    * @param line: assert_param error line source number
  998.    * @retval None
  999.    */
  1000. void assert_failed(uint8_t* file, uint32_t line)
  1001. {
  1002.   /* USER CODE BEGIN 6 */
  1003.         /* User can add his own implementation to report the file name and line number,
  1004.          ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  1005.   /* USER CODE END 6 */
  1006.  
  1007. }
  1008.  
  1009. #endif
  1010.  
  1011. /**
  1012.   * @}
  1013.   */
  1014.  
  1015. /**
  1016.   * @}
  1017. */
  1018.  
  1019. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  1020.