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Code Wrangler
To ST Microelectronics (especially the programmers who work on HAL & STM32CubeMX):   I see a lot of bellyaching on these forums (especially from knowledgeable grizzled veterans) complaining about the HAL (Hardware Abstraction Library) and the STM32CubeMX configurator program. Here is my counterpoint to that:   STM32CubeMX: This tool has saved me… (Show more)
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karpavicius.linas
Hello, I am trying STM32H7 HRTIM1, i could set duty cycle and period when i first initialize timer, but after that, i can't change duty cycle. usually, i write direly to compare register, but now it has no effect. I am running HRTIM1 TD1 and writing HRTIM1->sTimerxRegs[3].CMP1xR = newvalue; dosent to anything, while it what is done in init… (Show more)
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ben_dkhil.arwa
Hello, I want to implement an audio record based on STM32L4. To do that  I want to use the SAI peripheral. By Referring to the STM32L4 datasheet the SAI don't support a microphone interface. So, in such case shall I use an external microphone to be able to record audio data using the SAI? . thanks for the help. 
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Kang Sung Gu
When is the ISPR register used? ISPR [0] | = 0x00000001 << 6; // (EXTI0 Position) Does this code convert the EXTI0 interrupt into the pending state so that the EXTI0 interrupt should not be executed? But the interrupts work well   Did I misunderstand?   This is my sorce code   int main(void) {   /* USER CODE BEGIN 1 */   /* USER CODE END 1 */… (Show more)
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piet t
Afternoon everyone, I'm not sure of how to do this, but I need to store a large amount of data on my mcu(around 4 times larger than the SRAM the mcu has), for a brief period of time. I'll be using the nucleo-F722ZE ( STM32F722ZE ). It has a flexible memory controller, so in theory I think I can map SRAM to the board through the FMC and use the DMA… (Show more)
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mirk.hjl
I have a STM32F303K8T6 uC and would like to read ADC1 and ADC2 with DMA, triggered by TIM2 at the same time instance. The triggering by TIM2 works fine, but then only ADC1 is read out and not ADC2. Any suggestions what I need to change? Also when I set the adc_array to uint32_t, the upper and the lower bits are still only from ADC1.… (Show more)
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mirk.hjl
I have a STM32F303K8T6 uC and would like to read ADC1 and ADC2 with DMA, triggered by TIM2 at the same time instance. The triggering by TIM2 works fine, but then only ADC1 is read out and not ADC2. Any suggestions what I need to change? Also when I set the adc_array to uint32_t, the upper and the lower bits are still only from ADC1.… (Show more)
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Oleg Skydan
Hi, All!   I have made a board with STM32H743 (ES32H743 rev.Z datecode 633) and ported quite a big STM32F746 project to STM32H743. The works is not yet finished, but I have some questions and information that can be useful for others, so I want to share it.   Problem: DMA2D hangs reading data from the ASIB which actively exchanges data with the… (Show more)
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Dave Jones
I have a custom board using an STM32L452. I'm doing some testing of the ADC and am finding pretty high levels of noise.   I have a rail-to-rail op amp driving the ADC pin with a 300 ohm resistor from the amp to the pin and a .047uF cap to ground at the pin. The board is laid out well, with lots of ground under and around the chip, and bypass caps… (Show more)
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mahdi zamani
hi  i need start timer with external pulse at falling edge at one pin  and i need stop timer with external pulse at falling edge at one pin  can convert two 16 bit timer to one 32 bit timer ? on stm32f103c8t6  my timer clock is 72Mhz what can i do ?   thanks
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