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Hello. I'm trying to play a music file using PWM with STM32F1. For this, I saved the sound data in flash memory with appropriate resolution. Using Timer 2 and DMA, I transfer the data to TIM2-> CCR1 register. Sampling Frequency 8 Khz. DMA Circular M...
Hello everyone,For a university Project we are using a STM32L4 MCU together with the IS61WV102416BL non multiplexed asynchronous SRAM. I followed the Application note which can be found at:https://www.st.com/resource/en/application_note/dm00228015-u...
I'm working on an STM32L432KCU microcontroller. I want to develop two applications on the same MCU:An "OTA" app. This would load first. It uses a cellular modem to check for, and download firmware updates, and overwrite the existing application. Othe...
Hi,We are using STM32H750 for the new product development. The IDE is IAR Embedded Workbench and the RTOS is uC/OS-II.We found that it is OK to dereference NULL pointer on STM32H750. Any way to trap NULL pointer dereference to generate an access vio...
The CAN transceiver IC, i am using : TJA1057GT/3 , and I am seeing the some data waveform on oscilloscope but decoding is not happening. the baud rate varies for the CAN FD is from ~300kbps to 1Mbps(large fluctuation). Clock Divider : Divide kernel ...
I was struggling for a while to do a deep dissect of the cache behavior of my STM32F7508-DK device.Especially, when accessing SDRAM connected to FMC, the performance behavior was weird(some was much better than the others while the code looked semant...
I have some questions about how to start I2C on LL.Firstly, I rewrote the HAL code in LL and was a little surprisedWhy does it take so much code to read the data? virtual Status::statusType ReadByteArray(uint8* buffer, uint32 size) override { if (...
Hello all,Must use I/O expander (PCA9534PW) with STM32F334K8T6.Code:HAL_I2C_Mem_Write(&hi2c1, 0x20<<1, 0x03, I2C_MEMADD_SIZE_8BIT, 0x00, 1, 15000);All code (CubeMX generated): https://pastebin.com/GKNxHSut The usual HAL_I2C_Transmit is not suitable, ...
STM32F407VGTThe microcontroller is somehow goes under write protection mode while practicing firmware upgrade program.Is there any method to unlock write protection ?Cant able to program though keil. But ST LINK UTILITY software is able to reprogram ...
There is a very old machine that I want to remake.I cannot change the machine's sensors. The incremental encoder of one of the motors produces a jitter-like signal below at position 0. How can I determine this in reading with a timer. I am using STM3...
