Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on November 09, 2015 at 18:23Hi, I have recently got my SD card running on an STM32F7 with the SDMMC (with DMA) and came across one issue. The DMA request mapping in the Reference Manual (Table 25. DMA2 request mapping) indicates two streams ...
Posted on November 05, 2015 at 16:48Hi, I try to measure the CPU load of my STM32F429I-Discovery board. I tried the approach described on http://stm32f4-discovery.com/2015/05/cpu-load-monitor-for-stm32f4xx/. This shows me a CPU utilization of 99% in...
Posted on November 07, 2015 at 21:15Hi. I'm interested in that how you are programming - in C or in assembly language?What are really benefits of assembly in contrast to C? Speed of code execution probably? How much faster it is, if you compare the ...
Posted on November 09, 2015 at 22:59Guys, Is HAL_Delay(100) = Delay for 100ms ? Thanks
Posted on November 09, 2015 at 23:48Concerns stm32f30x.h file and devices who uses it.
Posted on November 06, 2015 at 14:56Hello, i try to start with extSDRAM with open4x9 board stm32f429IG. im Using a CooCox IDE. While i worked with internal SRAM everything was fine. But whe i try to work with external SDRAM(IS42SI6400) 64Mb, i meet ...
Posted on November 09, 2015 at 19:09I am designing a breakout (stamp) board for this controller and I am a bit confused about the hardware configuration of the USB OTG section. Can the VUSB be 5 V, the standard voltage from any USB source? If I want...
Posted on November 04, 2015 at 23:08I'm using the Keil v4 IDE/ToolchainIDE-Version:�Vision V4.70.0.0Tool Version Numbers:Toolchain: MDK-ARM Professional Version: 4.70.0.0The STM32F407VET6 is my full version. So I have 512MB flash.My image s...
Posted on August 20, 2015 at 09:19 The original post was too long to process during our migration. Please click on the attachment to read the original post.
Posted on November 08, 2015 at 22:53Hi, I am running a function that seems to be moving the default vector table, that has been set up for FreeRTOS. After running these 2 functions, USB_MSC_HOST_Init(), and then MSCHOST_DeInit(), I run SystemInit()...
