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Posted on May 26, 2015 at 21:23Hi, all. I have an STM32F401Discovery Kit using an STM32F401VCT6. I have wired an external SD card connector and have successfully implemented Elm-Chan's FATFs using the SDIO SD card interface. All works well, I can mo...
Posted on May 23, 2015 at 11:34I have a board with a 32 bit SRAM and have used CubeMX to configure a 32 bit data bus, a 10 bit Address bus with a Chip select of NE1. Briefly, Cube has produced the MX_FMC_Init(); file with settings as follows:- hsram...
Posted on May 25, 2015 at 03:50 Hi, I'm running some tests on an STM32F072 to verify my understanding of the docs. Apparently I'm missing an important point regarding the NVIC and pending interrupts... I'm single-stepping through the code ...
Posted on May 27, 2015 at 20:24HelloCan DMA access SRAM at the same time the CPU is accessing it or vice versa?Thanks.
Posted on May 22, 2015 at 16:18Estimated colleagues, following I explain the strange behavior: I am working the STM32F407 ARM processor, compiling with the GNU Tools ARM (4_9-2014q4) , use the HAL provided by STM32CubeF4 v1.5.0, using...
Posted on May 21, 2015 at 12:39Hi, I want to execute my code from SRAM of STM32F100. I basically want to copy a program from flash to SRAM and execute the program from SRAMPlease help me understand how this can be addressed.Regards Tejas #flash #...
Posted on May 27, 2015 at 15:33Hi, I have discover there is one extra ghost byte is sent in SPI. I have monitor the memory area of DMA TX buffer, the data there is correct, but I will receive one extra byte in the beginning.Here is my code/* Buffers...
Posted on May 27, 2015 at 09:51Hello there,I've noticed that the in my application the start-up time, i.e. the time from power-up to the first instruction in main() is about 7 to 8 ms. This seems very long to me.I'm using a STM32F103RC and the IAR c...
Posted on May 27, 2015 at 03:29Hi, I'm writing a bootloader, and need to determine the device density and flash size. I can read the flash size OK, from memory address 0x1FFFF7E0 However I can't seem to read the ''MCU device ID code'' , which is des...
Posted on May 27, 2015 at 09:56 Hi, I'm using spi to read and write from an spi flash part, which is working the vast majority of the time. Occasionally I get an incorrect value. Looking at the signals on a logic analyzer the spi clock s...
