/** * Interrupt Handler for DCMI */ void DCMI_IRQHandler() { if (DCMI_GetFlagStatus(DCMI_FLAG_FRAMERI) == SET) { DCMI_ClearFlag(DCMI_FLAG_FRAMERI); #ifdef CAM cam.ProcessData(); #endif } else if (DCMI_GetFlagStatus(DCMI_FLAG_OVFRI) == SET) { DCMI_ClearFlag(DCMI_FLAG_OVFRI); } else if (DCMI_GetFlagStatus(DCMI_FLAG_ERRRI) == SET) { DCMI_ClearFlag(DCMI_FLAG_ERRRI); } DCMI_CaptureCmd(DISABLE); DCMI_Cmd(DISABLE); DMA_Cmd(DMA2_Stream1, DISABLE); DCMI_Cmd(DISABLE); DCMI_ITConfig(DCMI_IT_FRAME, DISABLE); image = true; }
int main() { SysTick_Config(SystemCoreClock / 1000); InitLeds(); GPIO_SetBits(GPIOD, GREEN_LED); Delay(100); GPIO_ResetBits(GPIOD, GREEN_LED); GPIO_SetBits(GPIOD, ORANGE_LED); Delay(100); GPIO_ResetBits(GPIOD, ORANGE_LED); GPIO_SetBits(GPIOD, RED_LED); Delay(100); GPIO_ResetBits(GPIOD, RED_LED); GPIO_SetBits(GPIOD, BLUE_LED); Delay(100); GPIO_ResetBits(GPIOD, BLUE_LED); /** * USART */ RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE); RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC, ENABLE); GPIO_PinAFConfig(USART2_TX_PORT, USART2_TX_PIN_SOURCE, GPIO_AF_USART2); GPIO_PinAFConfig(USART2_RX_PORT, USART2_RX_PIN_SOURCE, GPIO_AF_USART2); /* Configure USART Tx as alternate function */ GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Pin = USART2_TX_PIN; GPIO_Init(USART2_TX_PORT, &GPIO_InitStructure); /* Configure USART Rx as alternate function */ GPIO_InitStructure.GPIO_Pin = USART2_RX_PIN; GPIO_Init(USART2_RX_PORT, &GPIO_InitStructure); USART_InitTypeDef USART_InitStructure; USART_InitStructure.USART_BaudRate = 115200; USART_InitStructure.USART_WordLength = USART_WordLength_8b; USART_InitStructure.USART_StopBits = USART_StopBits_1; USART_InitStructure.USART_Parity = USART_Parity_No; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; USART_Init(USART2, &USART_InitStructure); /* Enable USART */ USART_Cmd(USART2, ENABLE); Serial_print(USART2, "Hello World! -- Compiled on: "); Serial_print(USART2, __DATE__); Serial_print(USART2, " - "); Serial_println(USART2, __TIME__); /** * Interrupts */ NVIC_InitTypeDef NVIC_InitStructure; NVIC_InitStructure.NVIC_IRQChannel = DCMI_IRQn; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_Init(&NVIC_InitStructure); DCMI_ClearITPendingBit(DCMI_IT_FRAME | DCMI_IT_OVF | DCMI_IT_ERR); DCMI_ITConfig(DCMI_IT_FRAME | DCMI_IT_OVF | DCMI_IT_ERR, ENABLE); NVIC_InitStructure.NVIC_IRQChannel = DMA2_Stream1_IRQn; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_Init(&NVIC_InitStructure); DMA_ClearITPendingBit(DMA2_Stream1, DMA_IT_TCIF1 | DMA_IT_TEIF1); DMA_ITConfig(DMA2_Stream1, DMA_IT_TC | DMA_IT_FE | DMA_IT_TE | DMA_IT_DME, ENABLE); Serial_print(USART2, "Interrupts done. \r\n"); /** Camera Reset Pin & Power Down Pin */ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; GPIO_InitStructure.GPIO_Speed = GPIO_Low_Speed; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_9; GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_SetBits(GPIOA, GPIO_Pin_10); GPIO_ResetBits(GPIOA, GPIO_Pin_9); /** * DCMI */ OV2640_HW_Init(); Serial_print(USART2, "HW_Init done. \r\n"); /* Print camera Id */ OV2640_IDTypeDef camera_id; OV2640_ReadID(&camera_id); Serial_print(USART2, "Camera ID: "); Serial_print(USART2, camera_id.Manufacturer_ID1, 16); Serial_print(USART2, " - "); Serial_print(USART2, camera_id.Manufacturer_ID2, 16); Serial_print(USART2, " - "); Serial_print(USART2, camera_id.PIDH, 16); Serial_print(USART2, " - "); Serial_print(USART2, camera_id.PIDL, 16); Serial_println(USART2, ""); OV2640_QQVGAConfig(); Serial_print(USART2, "QQVGAConfig done. \r\n"); // OV2640_BandWConfig(0x18); // BW OV2640_Init(BMP_QQVGA); Serial_print(USART2, "Init done. \r\n"); // Memset int i; for (i=0; i<160*120; i++) { Targetbuffer[i] = 0xbeef; } DMA_Cmd(DMA2_Stream1, ENABLE); while ( DMA_GetCmdStatus(DMA2_Stream1) != ENABLE ) ; Serial_print(USART2, "DMA Enable done. \r\n"); DCMI_Cmd(ENABLE); Serial_print(USART2, "DCMI Enable done. \r\n"); DCMI_CaptureCmd(ENABLE); Serial_print(USART2, "DCMI Capture start. \r\n"); Serial_print(USART2, "Print: \r\n.\r\n.\r\n"); Serial_print(USART2, "done. \r\n"); Delay(1); // Clear screen Serial_print(USART2, 0x1b); Serial_print(USART2, "[2J"); while (1) { while (DCMI_GetFlagStatus(DCMI_FLAG_FRAMERI) == RESET) ; print_CameraData(); // Move cursor to home position. Serial_print(USART2, 0x1b); Serial_print(USART2, "[H"); } }