Posted on August 22, 2013 at 16:35Hello Everyone, I am using stm32f407 which is interfaced with 1MB of external RAM. Linker script is a simple one where it puts the data and bss section in external RAM. Regarding code execution I don;t have an issue...
Posted on August 25, 2013 at 14:46I'm new on STM32F407 and STM32F4xx DSP and Standard Peripherals Library. And now I've got some question.1) GPIO timingWhen I code GPIOF->BSRRH = 0x0100U; GPIOF->BSRRL = 0x0100U; GPIO...
Posted on August 24, 2013 at 19:12Hi all,I'm designing a MICROSD SDIO bus on a future PCB with a splitted ground plane below all D0-D3, CMD, CLK and SD_VDD to decrease noise, but I can't find a way to ''totaly'' cover the D0 and D1 traces (LQFP64 ST...
Posted on August 24, 2013 at 18:41Hi there, If I setup both ADC1 and ADC2 in independent mode and set ADC1 to scan channels 1,2,3 using DMA and setup ADC2 for analog watchdog on channel 2 having different sampling times for channel 2 between the ...
Posted on August 23, 2013 at 15:59In my application I'm sampling a 50Hz voltage at 300Hz in a timer interrupt. My application is able to alter a part of the flash memory to save parameters. But during during flash write/erase activity the CPU stalls...
Posted on August 23, 2013 at 12:48Hello again, I have connected two STM32F2 via SPI1. The data will be transfered via a variable sized datablock. The first two bytes are a command (5 bit) and a length (11bit) information of the following block. Is i...
Posted on August 23, 2013 at 09:39I think ITM_SendChar is freezing my code when I don't have a debugger attachedWhen I do have an debugger attached, it works, and I can see my messagesBut when I don't, then the code doesn't get past the printingBut ...
Posted on February 07, 2013 at 06:15Hi guys !I'm just about to order but wanted to make sure first. I'm trying to get four stepping motors (bipolar) in daisy chain. I want to use the chain as it is said in AN3991 with the difference that I'll be use...
Posted on August 23, 2013 at 11:16Good day,Have anybody make it work? I tried the example from:...\STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Examples\SDIO\uSDCardBut it does not work. I mean reading, writing functions.. I could only...
Posted on August 23, 2013 at 15:06Hi everyone,I overdrive the low-speed internal oscillator by external source with a small offset and small swing.Where can I find parameters for external clock(without bypassing LSI osc)?Thanks.Eugene #lsi #oscil...
