Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on August 19, 2014 at 01:01Hi, I am not able to clear a timer update flag while the timer is enabled. I am initializing a timer and the behavior is the following: .... TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); TIM4->SR = (ui...
Posted on August 13, 2014 at 00:06Hello.I'm following the procedure in AN2604 and trying to use an internal timer to measure the rtc frequency by looping back the rtc into a timer pin, in my case PA8 (Timer 1 channel 1), and then using PWM input cap...
Posted on August 18, 2014 at 18:11 Hi, I want to communicate with an i2c eeprom, I am able to send the first data but not the second. it seems that the buffer is full or there is another error somewere. Does anyone have an idea? #inclu...
Posted on August 18, 2014 at 16:20Hello,I'm discovering the STM32F407 with an STM32F4Discovery, in the past, I worked with a PIC32, and I see that there is many differences between those two microcontrollers.I want to understand how the UART periphe...
Posted on August 18, 2014 at 16:17So this maybe a very stupid and noob question: Are the library functions of stm32f4 and stm32f3 the same? I have been working on stm32f4 for quiet a while and had written a large amount of code for a certain project...
Posted on July 23, 2012 at 19:53I got 2 new STM32F4 Discovery boards and both are not being recognized by STLINK utility. Here some of the observations. I compared the behavior to STM32F1 discovery board. (It is Windows 7 PC).1) Plug in STM32F1 boar...
Posted on August 17, 2014 at 15:34 Hello,I'm currently quiet frustratedI'm trying to set up with the RTC wakeUp register an interrupt of 128Hz. For the RTC the LSI is used (I know not very precisely but for current testing propuse its enough)here i...
Posted on August 13, 2014 at 10:55Hi, I am unable to run the example STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Examples\FSMC\SRAM_DataMemory on my STM3210E-EVAL Board. Although I have made the following settings Project->Options ...
Posted on August 18, 2014 at 08:50In the STM32F407xx Datasheet (Doc ID 022152 Rev 4) Table 10 ''STM32F40x register boundary addresses'', there are 5 base addresses listed for the Peripheral ETHERNET MAC. How do these base addresses correspond to th...
Posted on August 16, 2014 at 13:49Hi, I am trying to measure the rpm of a geared DC motor. The manufacturer claims a speed of 500rpm at 12V but my calculations give a speed of around 1600rpm! The gear ratio is 19:1. I have written the following code...
