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Posted on June 06, 2012 at 11:30Hello, Always, when I set on the clock in I2C1 or I2C2, in the status register SR2 is the BUSY bit set. Here the code:int main(void) { I2C1_DBG = (I2C_TypeDef *) I2C1_BASE; // for debugging RCC->APB1ENR |= RCC_APB1ENR...
Posted on October 12, 2012 at 15:51Hello,I'm using the CPAL library.During the ''CPAL_I2C_Init ()'' when the I2C clock is set on, the BUSY bit in the status register SR2 is always set too. Why the BUSY bit is set ?I'm using the I2C1 on a STM32F217VG...
Posted on October 13, 2012 at 20:32I need to measure from outside the sampling frequency of a STM32F4 discovery, I have thought about using a pin as an output, and bring it in an alternating manner to VDD and GROUND each time the DMA takes a sample ...
Posted on October 13, 2012 at 20:22when I build my project,an error ''User\main.c(12): error: &sharp136: struct ''<unnamed>'' has no field ''BSRR'' '' was appeared . k yes,I check the '' STM32F2xx_StdPeriph_Lib_V1.1.0 '' of STM32F2XX , it doesn't...
Posted on October 12, 2012 at 12:53 The original post was too long to process during our migration. Please click on the attachment to read the original post.
Posted on October 11, 2012 at 20:40Hello, I want to share my story about the use of the microprocessor and the problems arising from it. My system consists of a microprocessor ARM Cortex M3 STM32F103RC6 and various peripherals. I use this system to...
Posted on October 12, 2012 at 15:35Hello all, I have a question about in application programming speeds with the L151. I have a working bootloader for both the L151 and the F207 micros. They are nearly 100% identical take a master/slave setup. For i...
Posted on October 08, 2012 at 17:56Hello here is any example for fast interrupt for stm32f4 ? thnx for adv...
Posted on October 11, 2012 at 10:00ST Cortex-M3 programming manual nicely describes all instruction, how they work and what they do but there is no info how many clock cycles it takes to execute given instruction.Fortunately I found ARM Cortex-M3 ma...
Posted on October 11, 2012 at 22:08Is there a library that implements compensation networks such as PID for STM32F4xx? #compensating-networks-pid
