I am working on a custom board equipped with an STM32H753 and a SD-Card connected via SDMMC 4bit wide Bus. FreeRTOS is used. HAL is generated using CubeMX and the package "STM32Cube FW_H7 V1.9.1".CubeMX generates the file sd_diskio.c and in it (line ...
I need a clarification regarding the actual ADC code equation for SAM4S family of microcontrollers. The equation from data sheet is,Does this equation hold good for both single ended and differential inputs ?Looks like it is considering a differentia...
I am using LPTIM for periodic ADC reading (every ~250ms) and periodic IWDG refresh. CPU should go to Stop mode when the ADC value is under certain value. If the ADC value is over certain value then CPU should reset end continue in Run mode. ADC is cl...
I am working in a project where I have to sample a signal with a sampling frequency of 8 kHz with the ADC. That data is send from the ADC to SRAM using DMA and then send through UART interface. I am using a "Blue pill" board (STM32F103C8T6) with a sy...
They don't make DRAM QSPI chips in an SO-8 package with more than 64 Mbits (maps to 2 Mbytes * 32). Given the current processor shortage, I've got an application where I'd like more memory (and I'm using a 100 pin package which is quite pin limited,...
The errata sheet of the STM32F042 states:The time-triggered communication mode described in the reference manual is not supported. As a result, timestamp values are not available. The TTCM bit of the CAN_MCR register must be kept cleared (time-trigge...
Hello I'm using SPI to interface my STM32F7 with the SX1262 radio. I got a weird behavior, I'm using a GPIO to toggle the NSS pin. But sometimes it toggles randomly during the data transfer. You can see on the following screenshot of my logic analyze...
I would like to know what load capacitance to have the Processor and RTC crystalsmade by the vendor. Typically the crystals are precision ground with a load capacitance such that when operating in the circuit the frequency will be very close to what...
My idea was simple. Set TIM to have 1MHz after prescaler. Then set ARR to the number of microseconds. So - I toggle GPIO pin each period elapsed and I can measure the time on oscilloscope.And here come troubles: for set 1us i get 2us. For 2us I get 2...
