About victory015

victory015 · 2016-08-11

Posted on August 12, 2016 at 01:40dear all,I have studied the camera sample project, it uses dma from camera address to LCD memory address. I do not have lcd in my design, so when i run the camera project, i see one whole black image. Is there a way...

victory015 · 2016-08-16

Posted on August 16, 2016 at 16:53 Thank you for the useful code snippet. Now the interrupt handler DMA2_Stream1_IRQHandlergets called after adding NVIC_Configuration(); I put a breakpoint in DMA2_Stream1_IRQHandler. After ...

victory015 · 2016-08-15

Posted on August 16, 2016 at 03:57i may find the code for DCMI TC interrupt. i add the code below to stm32f4 camera example. But the interrupt handler (DMA2_Stream1_IRQHandler) is never called when the blue button is pressed. Please help me !!DMA_IT...

victory015 · 2016-08-15

Posted on August 16, 2016 at 03:46The HT and TC interrupts, where do i manage them ? in stm32f4xx_it.c ?The stm32f4 camera example has the irq handler as below. Do i create a similar irq handler for DCMI? void SD_SDIO_DMA_IRQHANDLER(void){ /* Proce...

victory015 · 2016-08-15

Posted on August 15, 2016 at 14:15Thank you for replying. I am getting all 0x00 in the memory buffer (screenBuffer variable) after the DMA. Is there a DMA setup error? The DMA code is below.It loos like the all 0x00 problem is independent of using D...

victory015 · 2016-08-15

Posted on August 15, 2016 at 11:58Thank you for replying. it is stm32f4. I spent 6 hours and i couldn't get the DMA from camera to memory working. Can i declare an array variable and use it as DMA destination address?uint32_t buffer[8][64];DMA_InitS...

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