Ask questions, find answers, and share insights on STM32 products and their technical features.
Hi,the STM32L011E4 has a R_ADC of 1kOhm max according to the datasheet. Does this hold true for standard channels as well, or do standard channels have a higher impedance? The table with R_AIN_max isn't super helpful in this regard as my calculation ...
Hi I program a STM32F103 chip and work on a GPIO driver. The specs tells you clearly: The peripheral registers have to be accessed by words (32-bit) 9.2 GPIO registers RM0008.It doesn't use the word must be accessed. (Im planning to use the specifica...
How does the STM32 knows where should the .BSS section be addressed,and what's the range,when the chip startup initially? We know that firmware downloaded into the flash contains section information like .text ,.data ect,while .bss section should be ...
Hello,Code that was compiled for stm32F407 ( core M4) has an bug that accesses null pointer. The assembly code is as follows: STRB r1, [r0, #0x01]Where r0=0 and r1=0.Although MCU accesses null pointer, it does not enter hard-fault.But, the same c...
Hello,I am using an STM32H7B3I-EVAL board with a STM32H7B3LIH6Q MCU. I am looking to use FDCAN to communicate with multiple nodes and someone recommended using mailboxes for messages sent/received. The documentation was unclear, so I wanted to ask if...
Hello all,I am using STM32H723 MCU and need to set TIMx Counter (TIMx_CNT) to a specified value different than 0 on rising edge of external input pin - TI1 or TIMx_ETR. From the MCU reference manual (RM0468 Rev 3) I understand, the TIMx Counter (TIMx...
On my NUCLEO-G071RB board, I am able to use CubeMX to setup VREFBUF mode to use the VREF+ input-pin, internal 2.5V or 2.048V for reference for ADC and DAC.But I'm making a schematic for a STM32G071GBUxN, which does not have a VREF+ pin and in CubeMX ...
Hi,I'm having trouble getting serial data out of my STM32 Nucleo board. I managed to get this working a few years ago but for some reason it's not working for me now.The board that I'm using is an NUCLEO-F413ZH and I'm using a USB-TTL serial cable (T...
The STM32 family has fantastic interrupt service, they stack a whole slew of extra registers for you, and load the LR with an artificial return to properly unstack while looking for opportunities for tail chaining, aborted entry, etc etc. HOWEVER.......
