Hi Experts, PFA the hardware design. I am trying to send data to parallel (not cascade) 74hc595 over common bus lines from CD4094B. I am sending 16 bits to place first 8 bits in 74hc595(1) and second bits in 74hc595(2). But I am getti...
If a digital output pin value is changed multiple times within the same main loop, within the same interrupt, or within the same task and not separated by a delay then the output pin does not work as expected.This applies to both HAL_GPIO_TogglePin()...
Hello,i'm reading GPIO using internal instruction of GPIO_ReadPin function like "(GPIOC->IDR & GPIO_PIN_1)?1:0;" but i didn't get actual speed. So is there any alternative way to read GPIO fast ?Regards,Yash
The ContextI have a embedded system running on an STM32L053 processor that needs to process STM32 hardware timer interrupts regularly and cannot be disabled. These top-priority interrupts cannot be prevented because it could cause a failure in the wh...
I am using about 13 (PCA9554A & PCA9554AD) I/O expander IC to connect sensors to STM32 F103 micro-controller through I2C. Upto 3 PCA9554 IC works fine, but the moment I connect 4th IC, it starts to dump 255 from all the i/O Expander ICs.The data is l...
Hello. I am making software with STM32F030CCT6 processor. I am trying to make ADC with or without DMA. I always face this problem in F0 series. I can read only one channel. When it switches to multi-channel, it transfers data from a single channel to...
HAL_Delay() function gives infinite delay.i am toggle led using delay.below my simple project files.
Marking on actual part STM32L151R8H6A is “151R8H6A�? but data sheet is “L151R8H6A�?
Hi,I'm trying to build a software to retrieve data from an solar inverter.After I success to send data, it was the time to receive the data. I choose the method with DMA IDLE to receive data in a circular buffer.In this mode, after a lot of debugging...
We have run into a problem where a new run of boards with STM32F429ZIT MCU's have been losing a byte (always loses a single byte which seems odd) from the UART communications that are sent to DMA.We send packets of UART data to the MCU and the data i...
