Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on January 26, 2013 at 01:26Somehow I can not reply to https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https%3a%2f%2fmy%2est%2ecom%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex_mx_stm32%2fDMA%20to...
Posted on January 25, 2013 at 17:28I have spent a lot of time with the manuals for the stm32f4, but have had no luck finding the information I need regarding how long it takes to execute certain instructions. I assume add, takes maybe two CPU cycle...
Posted on January 25, 2013 at 17:12Hi All, According to the apps note AN4061, a page erase should only occur when one page is full. For instance, after the first run and the memory is formatted, page0 is marked as VALID_PAGE, and page1 is marked as...
Posted on January 25, 2013 at 06:39Dear All, I bought any product that contained STM32F103C8T6 48-pin mcu. I try to re-program it with my own hex file using Flash Loader Demonstrator and it can be wrote and verified correctly but the application can...
Posted on January 24, 2013 at 17:42Hello, I have an issue while 2 STM32F103REY are connected through i2c, 7bits addressing. It works good in the following cases: master transmitter master receiver for 1 byte master receiver for n bytes, n >=2 Not ok...
Posted on January 24, 2013 at 21:54Hello, My problem is that I don't get the Frequency produced by Timer 16 seen on PB8. Somebody can have a look at the code and tell me what's missing or wrong. static void setup_Timer16(void) { TIM_OCInitType...
Posted on January 24, 2013 at 16:18Hello, I'am struggeling with a timer delay function, I've made a delay_us() function with help of timer14 However, when I have a delay which is close to zero I have lots of deviation. Here is my initialisation:#de...
Posted on January 25, 2013 at 01:05I have designed a custom board around STM32F407VET. I am using 8 MHz external oscillator (ABRACON ABLS-8.000MHZ-B2-T) with 22 pf load capacitors (CL) and 220 ohm REXT. When I probe OSC_IN or OSC_OUT pins using lo...
Posted on January 24, 2013 at 17:03Hello,I need to design a system which will compress a data with rate of 1000:1 minimum in the range of determined time.I want to compress data (tera bytes to gigabytes) and to save to SD card.I searched about open...
Posted on January 22, 2013 at 16:53 I am having some trouble setting up an external pulse duration measurement on a Timer. Ideally I'd like to capture the duration of just the first incidence of a pulse on the desired pin, but that could require ...
