babar_ali
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Hello Guys!
I am Working with DCMI data to SDIO using STM32F4 microcontroller. In this project I have to capture image (1 Frame only) and store it to SD/MMC.
Some parameters
Pixel clock = 27Mhz
Hsync = 15.6khz
camera resolution = 720*480
Pixel format = YCbCr 4:2:2
SDIO clock = 24Mhz
DCMI and SDIO both are using DMA2. I have a limited RAM. In order to store data I have tried DMA2 in Ping pong and double buffer mode to store data in SD/MMC (SDIO 4 bit mode). Both peripherals works fine if tested separately. I don't know where are things going wrong?
Has Any body has done this sort of project before.
thanks in advance...
I am Working with DCMI data to SDIO using STM32F4 microcontroller. In this project I have to capture image (1 Frame only) and store it to SD/MMC.
Some parameters
Pixel clock = 27Mhz
Hsync = 15.6khz
camera resolution = 720*480
Pixel format = YCbCr 4:2:2
SDIO clock = 24Mhz
DCMI and SDIO both are using DMA2. I have a limited RAM. In order to store data I have tried DMA2 in Ping pong and double buffer mode to store data in SD/MMC (SDIO 4 bit mode). Both peripherals works fine if tested separately. I don't know where are things going wrong?
Has Any body has done this sort of project before.
thanks in advance...