STM32F0 - USART1 external clock?
Posted on September 05, 2012 at 03:07Hi!Is there a way to clock (only) USART1 using a (variable) external clock of 1 to 12 Mhz?Also, is there a way to clock USART2 using another clock source than system?Thank you!
Forum Posts
Debug without SWD/JTAG
Posted on September 03, 2012 at 09:05Hello everyone,For a project, we try to debug STM32C-Eval board without SWD/JTAG standart board. We have an *.out file and we want to download this file. We want to implement a C/C++ program instead of SWD/JTAG. ...
2 min interrupt using RTC
Posted on September 04, 2012 at 02:47Hi all, I am new to programming. I wanted some help regarding rtc coding. I am using stm32l1 discovery board(and IAR workbench), and want to generate interrupt after every 2 mins. I think using timers for this wi...
STM32F103C6 HSE oscillator Hardfault
Posted on September 04, 2012 at 00:42Hello! Sorry for the new thread I'm new here, and I ran into a strange problem... I have a board with an STM32F103C6 micro, and I'm trying to switch the uC to use the on board HSE crystal (12MHz) instead of the ...
measure time for a puls with ADC
Posted on August 29, 2012 at 16:40I need to measure the averige a signal is low using the ADC. Is there a way to connet the adc to a timer? I have nott been able to figure that out, so insted I have tried the folowing... Start systick at 1ms, that c...
UART junk values
Posted on September 03, 2012 at 09:20Hello, I was using UART4 pin PA0 and PA1 for my project. I have done all the initialization procedures right but ended up getting junk values at the output. below is my initialization function. void UART_LowLevel...
Problems with usart comunication with interrupts
Posted on September 03, 2012 at 09:13Hi, I'm trying so hard to send and receive data through USART1 of my STM32. I'm using STM32VL_Discovery board, Modbus as communication bus with RS485 interface (I connect my micro to the bus through a MAX232 and ...
STM32F0 MIPS
Posted on September 03, 2012 at 15:29Hi, How many Million Instructions Per Second The M0?
Resolved! malloc library - _sbrk problem
Posted on September 02, 2012 at 00:47I was trying to use malloc in a project which has been ported from an other platform. I get the message that... _sbrk ... is undefined. This is used by _sbrk_r which again is used by malloc. I found no solution...
STM32F4 Bit Set Reset Register
Posted on August 31, 2012 at 12:09 The file stm32f4xx.h defines the BSRR as two 16 bit ''halves''. typedef struct { __IO uint32_t MODER; /*!< GPIO port mode register, Address offset: 0x00 */ __IO uint32_t OTYPER; /*!< GPIO port output...
