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 25, 2013 at 15:27I am acquiring data into one circular buffer while analyzing the data in the other buffer. The ADC switches back and forth between the two buffers. Do the two buffers have to be in separate memory blocks (0x2000000...
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 25, 2013 at 11:01What are the advantages and disadvantages of GPIO being assigned to AHB (instead of being assigned to APB) #bus #gpio
Posted on January 11, 2013 at 18:05Hi to all, I'm using a stm32L152V8 100pin 64k.the question regards the adc peripheral and the gpio of the mcu. 1)I'm putting an analog signal on the PA0 pin configured as analog input(this signal goes from 0v to a ...
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 24, 2013 at 01:58Recently migrated from STM32F1 to STM32F4, trying to set up an alarm which fires an interrupt at 512Hz using LSE with prescalar (RTC_AsynchPrediv, RTC_SynchPrediv), more or less as follows: /* Enable the PWR clock...
