Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on June 20, 2013 at 05:05Hi All, trying to learn more about the system control block and it's control of the stack pointer. Using the STM32F03. I have searched RM0008, and DDI0337E_cortex_m3_r1p1_trm.pdf discusses it's use, but not specifics...
Posted on June 18, 2013 at 20:47This is a really basic question, but I'm just starting out on this board. I've been able to run programs through the Debug interface of ST-Link in Eclipse. Now I'm trying to get printf working with USART2, so I need ...
Posted on June 19, 2013 at 19:29Hi all, is there a way how to definitely disable JTAG ? so it will be not usable anymore ? i'm scared of flash code steal (of course when Read-out protection enabled) ... Kind regards,
Posted on June 19, 2013 at 08:02I have an STM32F4 project that uses DMA for UART transmission, and it's working well. I now need to add the ability to interrupt the DMA process and send a single byte immediately (or, more specifically, once the byte...
Posted on June 19, 2013 at 13:20hey all when i include the header stm32f4_discovery.h it recognizes it well , but it dont recognize ''GPIO_InitTypeDef'' !! and ''RCC_AHB1PeriphClockCmd'' and all GPIO_Pins! and to be sure of the header i attached ...
Posted on June 19, 2013 at 16:25Hello to everyone!What does it mean the ''FM+ capable'' feature of a pin? There is 5V tolerant, and 5 V tolerant I/O, FM+, pin (STM32F051x4 datasheet - pin PB6, PB7, PB8, PB9) and what is the diference? This feature i...
Posted on June 05, 2013 at 22:36 told me to report on this forum any corrections needed in reference docs and code. These corrections apply to the latest published reference manuals for STM32F3xx: RM0316: STM32F302xx, STM32F303xx and STM32F313xx...
Posted on June 17, 2013 at 14:52I need to update this function to stm32f4xx.h.void delay_us(u32 Nus){ SysTick_SetReload(delay_fac_us * Nus); SysTick_CounterCmd(SysTick_Counter_Clear); // error: 'SysTick_Counter_Clear' undeclared (first use in...
Posted on June 17, 2013 at 08:50 Hello, I want to put the data from buffer(RAM) to the GPIO port(transmit) and from another GPIO port to the buffer(RAM)(receive) with the 2MHz clock. So I'm using DMA with input capture mode of the timer. ...
Posted on June 18, 2013 at 11:25I write this code witch turn on the 4 leds of the stm32 when pushing the bouttan and after it wait for some time and turn off the 4 leds. I checked the code without the delay it work fine but whith the delay the progr...
