Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on July 18, 2012 at 16:51it shows like:Error : Cannot communicate with the device !Check the SWD cable connection and check all the needed pin connections on the SWD connector.Reboot the ST-Link with USB cable.If the device has been programme...
Posted on March 05, 2013 at 17:05 hey , i was testing the flash driver of stm32f407vg. and during the testing of the option bytes i set the rdp of the flash to protection level 1. since then all debugging facilities have been disabled. even the f...
Posted on August 07, 2012 at 18:55Hi everyone,I am trying to send some bytes of data on a sd-card (8GB) using SPI.I started with wiring the sd slot and configuring the spi but I have nothing, not even the clock...I have followed what's explained in ...
Posted on March 05, 2013 at 08:41Hi everybody,I got a question about Vbat (I didn't find this answer in the datasheet). I have connected to my Vbat pin a supercapacitor.Does I need to connect my supercapacitor to 3V3 to charge it ? Or is it charged ...
Posted on March 05, 2013 at 14:32Hello All, I am using STM32F207VC. I have problem while sending data to slaves. I send a packet of data for example 0x01,0x02,0x03,0x04,0x05,0x06. While sending these packets SPI sends 0x00 in between anyof these da...
Posted on January 30, 2013 at 12:34The original post was too long to process during our migration. Please click on the attachment to read the original post.
Posted on March 05, 2013 at 11:52Hi Is it possible to change the pins of the bootloader that is loaded inside the chip? As I read it is only usart3 and only on PORTB. Thank you
Posted on March 05, 2013 at 10:29Hello,I work with Atollic and STM3220 kit. I use the console with SWV. When I use printf with ''tiny_printf.c'' I have no problem.This is the method:in syscalls.c_write int (int file, char * ptr, int len){/ * Impleme...
Posted on February 26, 2013 at 21:26Hello!Use stm32f107vc.I'm trying to synchronize two timers (TIM3 and TIM5), as including the external trigger. Configure them, as described in RM0008 page 386:void TIM3(void){RCC->APB1ENR |= RCC_APB1ENR_TIM3EN;TIM...
Posted on March 01, 2013 at 04:44Dear, I want to test the systick clock frequency. And use the systick as the RTOS system timer. It would be set to 1ms. And I use the configuration of the demo code as following: if (SysTick_Config(SystemCoreClo...
