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main.c
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main.c
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// Example for STM23f429 (Core429I board)
// Important - I have changed SDRAM GPIO pins settings in HAL_FMC_MspInit()
// Dont't forget about HEAP size
// You need to set needed UVC mode in "usbh_video.h" file
/* Includes ------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include "main.h"
#include "stm32f4xx_hal.h"
#include "usb_host.h"
#include "usbh_video.h"
#include "usbh_video_desc_parsing.h"
#include "usbh_video_stream_parsing.h"
#include "stm32f429_sdram.h"
#include "stm32f429_lcd.h"
#include "mjpeg_decoding.h"
#include <yfuns.h> // Debugger macros
//Framebuffers to store raw data from camera - placed at the SDRAM after LCD framebuffers
#define UVC_FRAMEBUFFER0 (LCD_FRAME_BUFFER1 + LCD_BUFFER_SIZE)
#define UVC_FRAMEBUFFER1 (UVC_FRAMEBUFFER0 + UVC_MAX_FRAME_SIZE)
/* Private variables ---------------------------------------------------------*/
DMA2D_HandleTypeDef hdma2d;
SDRAM_HandleTypeDef hsdram1;
SDRAM_HandleTypeDef hsdram1;
TIM_HandleTypeDef htim9;
uint32_t frame_cnt = 0;//Drawn frames counter
uint32_t prev_frame_cnt = 0;
uint32_t timestamp_1sec = 0;
uint8_t last_fps = 0;
uint8_t frame_received_flag = 0;
extern uint32_t uvc_frame_cnt;
extern uint8_t uvc_parsing_new_frame_ready;
extern uint8_t* uvc_ready_framebuffer_ptr;
extern uint32_t uvc_ready_frame_length;
extern USBH_VIDEO_TargetFormat_t USBH_VIDEO_Target_Format;
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
static void MX_FMC_Init(void);
static void MX_DMA2D_Init(void);
void MX_USB_HOST_Process(void);
static void MX_TIM9_Init(void);
volatile uint32_t decode_time = 0;//debug only
int main(void)
{
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_FMC_Init();
MX_LTDC_Init();
MX_USB_HOST_Init();
MX_DMA2D_Init();
SDRAM_Init();
video_stream_init_buffers((uint8_t*)UVC_FRAMEBUFFER0, (uint8_t*)UVC_FRAMEBUFFER1);
MX_TIM9_Init();
lcd_switch_to_single_buffer_mode();
lcd_clear(LCD_COLOR_WHITE);
printf("Waiting for UVC Camera\n");
while (1)
{
MX_USB_HOST_Process();
if (uvc_parsing_new_frame_ready)
{
uvc_parsing_new_frame_ready = 0;
if (frame_received_flag == 0)
{
//First frame from camera - switch to LCD dual buffer mode
frame_received_flag = 1;
HAL_Delay(1000);
lcd_clear(LCD_COLOR_WHITE);//clear buffer0
lcd_switch_buffer();
lcd_switch_buffer();//make shadow buffer = buffer1
lcd_clear(LCD_COLOR_WHITE);//clear buffer1
}
uint32_t start_decode_time = HAL_GetTick();
//Draw captured image
if (USBH_VIDEO_Target_Format == USBH_VIDEO_YUY2)
{
lcd_draw_yuyv_picture((uint8_t*)uvc_ready_framebuffer_ptr);
}
else
{
mjpeg_decompression_and_draw((uint8_t*)uvc_ready_framebuffer_ptr, uvc_ready_frame_length);
}
decode_time = HAL_GetTick() - start_decode_time;//debug only
//Draw FPS
uint8_t tmp_str[32];
sprintf((char*)tmp_str, "FPS: %d \n", last_fps);
LCD_DisplayStringLine(LCD_PIXEL_HEIGHT - 20, tmp_str);
lcd_switch_buffer();
video_stream_ready_update();
frame_cnt++;
HAL_GPIO_TogglePin(GPIOI, GPIO_PIN_6);//Blink LED
}
//Calculate FPS
if ((HAL_GetTick() - timestamp_1sec) > 1000)// 1000ms
{
timestamp_1sec = HAL_GetTick();
last_fps = frame_cnt - prev_frame_cnt;
prev_frame_cnt = frame_cnt;
}
}
}
// This is needed bacause UVC processing must not be interrrupted
void timer9_interrupt_process(void)
{
USB_HOST_fast_class_call();
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/**Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 168;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
{
Error_Handler();
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 201;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 4;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_4;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
//HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_HSI, RCC_MCODIV_1);
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
//Timer for USB host controlling
static void MX_TIM9_Init(void)
{
TIM_ClockConfigTypeDef sClockSourceConfig;
htim9.Instance = TIM9;
htim9.Init.Prescaler = 1000 - 1;
htim9.Init.CounterMode = TIM_COUNTERMODE_UP;
htim9.Init.Period = 84 - 1;
htim9.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
if (HAL_TIM_Base_Init(&htim9) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim9, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
HAL_TIM_Base_Start_IT(&htim9);
}
/* DMA2D init function */
static void MX_DMA2D_Init(void)
{
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_RGB565;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_RGB565;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
}
/* FMC initialization function */
static void MX_FMC_Init(void)
{
FMC_SDRAM_TimingTypeDef SdramTiming;
/** Perform the SDRAM1 memory initialization sequence
*/
hsdram1.Instance = FMC_SDRAM_DEVICE;
/* hsdram1.Init */
hsdram1.Init.SDBank = FMC_SDRAM_BANK2;
hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_2;
hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_ENABLE;
hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
/* SdramTiming */
SdramTiming.LoadToActiveDelay = 2;
SdramTiming.ExitSelfRefreshDelay = 6;
SdramTiming.SelfRefreshTime = 4;
SdramTiming.RowCycleDelay = 6;
SdramTiming.WriteRecoveryTime = 2;
SdramTiming.RPDelay = 2;
SdramTiming.RCDDelay = 2;
if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
{
Error_Handler();
}
}
/** Configure pins
PE4 ------> DCMI_D4
PE5 ------> DCMI_D6
PE6 ------> DCMI_D7
PA4 ------> DCMI_HSYNC
PA6 ------> DCMI_PIXCK
PH12 ------> DCMI_D3
PC8 ------> SDIO_D0
PC9 ------> SDIO_D1
PA8 ------> RCC_MCO_1
PA10 ------> DCMI_D1
PC10 ------> SDIO_D2
PC11 ------> SDIO_D3
PC12 ------> SDIO_CK
PD2 ------> SDIO_CMD
PD3 ------> DCMI_D5
PG9 ------> DCMI_VSYNC
PG10 ------> DCMI_D2
PI5 ------> S_TIM8_CH1
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOI_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
/*Configure GPIO pins : PE4 PE5 PE6 */
GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/*Configure GPIO pins : PA4 PA6 PA10 */
GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_6|GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : PH12 */
GPIO_InitStruct.Pin = GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
/*Configure GPIO pin : SDIO_CARD_DET_Pin */
GPIO_InitStruct.Pin = SDIO_CARD_DET_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(SDIO_CARD_DET_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : PC8 PC9 PC10 PC11
PC12 */
GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11
|GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pin : PA8 */
GPIO_InitStruct.Pin = GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF0_MCO;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : PD2 */
GPIO_InitStruct.Pin = GPIO_PIN_2;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pin : PD3 */
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
/*Configure GPIO pins : PG9 PG10 */
GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF13_DCMI;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
/*Configure GPIO pins : PB3 PB4 */
GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pin : TIM8_CH1_VIDEO_Pin */
GPIO_InitStruct.Pin = TIM8_CH1_VIDEO_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF3_TIM8;
HAL_GPIO_Init(TIM8_CH1_VIDEO_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pins : PI6 LED_Pin */
GPIO_InitStruct.Pin = GPIO_PIN_6|LED_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3|GPIO_PIN_4, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOI, GPIO_PIN_6|LED_Pin, GPIO_PIN_RESET);
}
// Comment to use semihosting
int putchar(int c)
{
lcd_print_char(c);
return c;
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Error_Handler */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/