Dear Readers,I got a lot of problems getting a PDM microphone (IM69D130) via SAI running on an STM32L431. I connected it as specified in app Note AN5027 (Select --> HIGH; Clock --> SCK_A; DATA --> SAI_SD_A);SAI_1 has 32 MHZ.Sai_init:hsai_BlockA1.Inst...
Hi I'm usiing STM32F746 controller, I am erasing sector 7 using HAL_FLASHEx_Erase(FLASH_EraseInitTypeDef *pEraseInit, uint32_t *SectorError).Erase operation is successfull but the Controller functionality is not working i.e it is not taking any input...
I'm trying to use the watchdog on a STM32F401.The watchdog initialization is as follows: hwwdg.Instance = WWDG; hwwdg.Init.Prescaler = WWDG_PRESCALER_8; hwwdg.Init.Window = 127; hwwdg.Init.Counter = 127; hwwdg.Init.EWIMode = WWDG_EWI_DISABLE;In norma...
I suppose FMAC uses AHB clock. I would like to know, if possible, how many clock cycles are required to perform a multiply-and-accumulate step in a FIR or IIR filter.Thank you for your help
Hi,my dear STM32L4 (BL475E-IOT01A) was working until yesterday, but for an unknown reason today it does not work anymore.When i connect the micro usb to the ST-LINK the LD7 is turned on and remains red. the datasheet says it is a Fault Power. The con...
I am trying to generate a small program to toggle the onboard LED (PA5) using the onboard switch (PC13) using an interrupt. I set a breakpoint in my ISR and I never go there. I have gone over all the register settings and they look correct: (i.e. ...
Hello, I am using Keil and generating a *.bin file of my program from the *.axf file.I would like to know if there is a way to check before loading the binary file if it is corrupted.Is there some checksum to read or something.
I want to control the OP AMP using F303. I opened all OP AMPs and received ADC values in the form of Follower, but OP AMP4 does not work. What's the problem?
Like the topic says, is the CEC module expecting a clock of nominally 32.0 kHz from the LSI, or nominally a 4 MHz/122 = 32.8 kHz clock from the CSI? It seems that the tolerances for the LSI and CSI can be too large for reliable CEC communications, an...
Hi,in my Project I need a millisecond timer. Therefore I try to use TIM3. Now I have the following problem.For example, when the MCU runs in Run-Mode at 80 MHz TIM3 fires every 1 ms according to its configuration. But when the MCU runs in low power m...
