STM32 MCUs Products
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Resolved! How does the STM32 knows where should the .BSS section be addressed,and what's the range,when the chip startup initially?
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 ...
Access Null pointer - M4 vs M33
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...
Resolved! STM32H7B3LIH6Q: CAN Mailboxes
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...
STM32H723 Setting TIMx counter to specified value on rising edge of an input pin
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...
Resolved! What are the reference on STM32G071 devices with no VREF+ input
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 ...
Resolved! No data in Hyper terminal - STM32 Nucleo
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...
Can I subvert the context switching for STM32 interrupt handling?
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.......
Why can't I read from more than one UART?
Hello community, I'm new to ST-MCUs, so maybe this question is very basic. I'm developing an application for a customer board with a STM32L051R6TX.For Communication we use USART1 und USART2, for logging I activated LPUART1.On USART1 und USART2 I get ...
Resolved! STM32L4R9 power consumption figures in stopModes on Discovery board don't match the electrical characteristics
Hi, with my team we are currently investigating the low power features of the STM32L4R9 MCU on a DISCOVERY board. We are measuring the current consumption on JP1, plugging an external amperemeter between pins 3 and 2.We would like to check the datash...
