About matthiaspfister9

matthiaspfister9 · 2012-06-22

Posted on June 22, 2012 at 13:14Hello, I am trying to transfer image data from the DCMI data register via DMA to RAM memory. For this purpose I configure DMA2 as follows:RCC_AHB2PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);DMA_InitTypeDef DMA_InitS...

matthiaspfister9 · 2012-06-12

Posted on June 12, 2012 at 13:41The original post was too long to process during our migration. Please click on the attachment to read the original post.

matthiaspfister9 · 2012-05-10

Posted on May 10, 2012 at 15:19Hello, I am evaluating the SMT32F407 and I am wondering how it is possible to execute code from flash with 0-wait state. In the datasheet on page 67 it is described that the number of wait states it 5 at the maximum C...

matthiaspfister9 · 2012-06-25

Posted on June 25, 2012 at 11:35I have found the error: I should be RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE); instead of RCC_AHB2PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);

matthiaspfister9 · 2012-06-22

Posted on June 22, 2012 at 13:51Some additional information: - I am using IAR Embedded Workbench for ARM 6.30.7.3447 - No interrupts are enabled (I think it's not necessary) When I step into the function DMA_Init(), I can see that the following co...

matthiaspfister9 · 2012-06-12

Posted on June 12, 2012 at 14:06Yes, I do. I forgot to copy this part of the code: void Init_Init(void) { init_RCC_Config(); init_GPIO_Config(); init_TIM_Config(); init_SYSTICK_Config(); init_DCMI_Config(); init_SPI_Config(); }

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configuration of DMA for DCMI

STM32F4: no clock on SPI

0-wait state

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Re: STM32F4: no clock on SPI