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[STM32F051K8] No SWD connection after some time ...

Posted on August 10, 2012 at 09:44Hello, I'm working on a custom board around a STM32F051K8. I was playing with it for 2 or 3 days, everything was fine, then without moving it or something, it stopped responding to SWD interface. The previous code i...

root by • Associate II
  • 1725 Views
  • 15 replies
  • 0 kudos

USART2 / BOOT problem

Posted on September 28, 2012 at 14:13Hi! I'm working with a STM32F0-Discovery board + IAR IDEAfter loading this code... void USART_Configuration(void){     /* Abilita clock GPIOA e DMA  */  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA , ENABLE);    /* ...

pietro2 by • Associate II
  • 641 Views
  • 4 replies
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STM32VL - example using interrupts in ASM

Posted on September 30, 2012 at 11:51Hello, I am new in programming of STM32VL Discovery. I would like to write program in assembler for blinking LEDs using interrupts. But it is so difficult to find examples in ASM and I can�t find some example in ...

j3lda1 by • Associate II
  • 1765 Views
  • 5 replies
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SMR32 Bootloader and security

Posted on September 29, 2012 at 07:26As far as I understand using of the standard ST bootloader is not secure because in this case FW can not be protected and may be read by anyone. I mean anyone can read my FW and theoretically copy it to its own p...

dimax by • Senior
  • 1572 Views
  • 9 replies
  • 0 kudos

48/72mhz, PLL*6/PLL*9, with source code

Posted on September 28, 2012 at 00:13 Hi, first of all thanks for reading this! This is assembly code (gnu arm) for setting up the ST32F103 to make sound out the DAC. It works in 48mhz PLL mode, but not in What follows is the complete progra...

pete2399 by • Associate II
  • 1292 Views
  • 7 replies
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STM32F4 Firmware upgrade

Posted on September 22, 2012 at 20:19I have found a few examples of how to update the firmware on a STMF4. The first one you needed to use a usb memory stick and the second one you had to reset the microcontroller and put the boot pins in the correc...

russdx by • Associate II
  • 4580 Views
  • 9 replies
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STM32F0 sleep or standby mode excessive consumption

Posted on September 27, 2012 at 11:26Hi, I use the STM32F0 Discovery. I disconnect jump JP2 and connect ammeter. I build a simple program in IAR: int main() {   DWORD i;   UINT16 j;     SystemInit();   SystemCoreClockUpdate();   init_hardware();  ...

STM32F107RC - Very low external resistor on NRST pin

Posted on June 03, 2011 at 23:59Hi, I want to build circuit with STM32F107RC. I projected PCB and chcek all wires with any avaluation kit board. When I turn power on all circuit take about 9 mA. I chcecked all power supply pins aroud microcontroller...

How to store web pages in microcontroller flash

Posted on September 26, 2012 at 14:37Hello all, I am doing a project where the microcontroller (STM32) is sending the parameters to the server via DHCP using wifi module. So, now i want to make available an offline web page to the user where he will...

bikash by • Associate II
  • 2940 Views
  • 10 replies
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