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ADC regular channels vs injected channels

Posted on August 12, 2013 at 13:52Hello,Can somebody kindly explain the difference/ different usage scenarios of ADC regular channels and injected channels?As per available documentation, it is mentioned injected channels are intended, when the conv...

SysTick_Handler suspended during other interrupts

Posted on August 13, 2013 at 17:12Hello Allm I am prototyping with the STM32 F3 Discovery board and using the ST standard peripheral library.  I am also using some example code that contains a function - Delay() - which uses the SysTick_Handler to d...

STM32F37x SRAM size

Posted on August 13, 2013 at 14:23Hi, I have a simple question regarding internal SRAM size of STM32F373Rx processor. Datasheet (rev.3, table 2 on page 10) specifies SRAM size of 24kB for 128kB Flash units,but I can read and write up to 32kB of SRAM...

bpacan by Associate II
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Generating a fixed number of pulses on trigger

Posted on August 08, 2013 at 23:31Hi,I have what is essentially a timer question. I am interested in using an STM32 F4 (more RAM, higher clock speeds) for an application. My application requires me to generate a pulse every 2ms, pulse length ~100 us...

srsinha by Associate II
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DMA interrupt handler hit but no IT flags set

Posted on August 13, 2013 at 11:41Hi, I am using DMA1 on an STM32F103 to collect data continuously from ADC1 as it cycles thru a regular conversion group.  Every time the DMA transfer complete interrupt fires I post an event to look at the data and ...

STM32F0 does not run standalone

Posted on August 12, 2013 at 13:27Hi, on my STM32F0 discovery board I configured the clock source to be HSI with a system_stm32f0xx.c generated by the clock configuration tool . That seemed to run like it should. Now I pulled JP2 and supplied Vdd pi...

mmensch by Associate II
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Help to create large buffers in RAM

Posted on August 12, 2013 at 21:48 Hello guys, I need some help. I want to create a large buffer in the sram and I'm having some problems with the compiler. I want to use the 112KB SRAM memory (pag 52 - RM0090) for my buffer. But when I w...

Sample a timer on EXTI interrupt

Posted on August 12, 2013 at 20:35Hi,I want to sample a fast timer (125ns) when an EXTI interrupt occurs, before the interrupt is handled. Later when the interrupt is handled i want to be able to compare the actual value of the same timer and measur...