WebSVN – EngineBay2 – Blame – /trunk/Src/main.c

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

Subversion Repositories EngineBay2

(root)/trunk/Src/main.c – Rev 22