About Bob S

Bob S · 2023-09-08

Saw issue in another thread about CubeIDE 1.13.1 unable to generate code from F7 1.17.1 (https://community.st.com/t5/stm32cubeide-mcus/stm32cubeide-v1-31-1-error-when-using-1-17-1-fw-patch/td-p/588887).Interestingly, CubeMX v6.9.1 (Windows) won't eve...

Bob S · 2022-01-13

CubeF4 version 1.26.2 and CubeF7 version 1.16.1 and 1.16.2 are missing the enum value for HardFault_IRQn in all of the device specific include files (ex. stm32f429xx.h and stm32f746xx.h). It may be missing in earlier versions, I did not check. Cube...

Bob S · 2021-05-12

STM32CubeMX version 6.2.1, target STM3G474VE, CMSIS v2. If you create a time with "static" allocation, the "FreeRTOS Heap Usage" tab shows no heap usage by that timer. However, osTimerNew() always allocates the TimerCallback_t structure from the he...

Bob S · 2021-04-09

CubeMX ver 6.2.1 (and also 5.6.1). Start with a new project (STM32G474VE TQFP100 in the attached IOC file). Map pin PC10 to an EXTI function (in my case, falling edge with pull-up) and enable the NVIC EXTI15_10 interrupt. Make sure this pin is "pi...

Bob S · 2020-04-28

Running CubeMX version 5.6.1 on Win10. No internet connection, so I manually copy the CubeL4 zip files to the PC and then try to install via the "Install/Remove" button under software packages. I have CubeL4 1.15.0 installed. When I check 1.15.1 a...

Bob S · 2024-06-11

The correct equation is:(ARR+1) / ( 168,000,000 / (prescaler+1) ) = timer periodSo with ARR=65535 and prescaler=10 you should get 4.29ms.

Bob S · 2024-06-05

DIsclaimer - I am not familiar with the F3xx comparators. My answer presumes they are similar to the L4xx and G4xx comparatorsIf you connect the minus input to external circuitry you can implement your own hysteresis so that when the plus input goes...

Bob S · 2024-06-05

When using the debugger do you have the UART registers displayed in the SFR window? If so, don't do that as it messes with the status/interrupt bits.That said, the transmit in your main loop is using the same buffer as you receive, and the first tim...

Bob S · 2024-06-05

Implement a HAL_UART_ErrorCallback() function and see if that ever gets called. If so, see what error flag gets set.

Bob S · 2024-05-24

Just a shot in the dark - in some of the older Cube USB CDC example code the CDC_SET_LINE_CODING and CDC_GET_LINE_CODING control messages did nothing. And some versions of Windows would not connect to that device. Implementing those two functions (...

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CubeMX 6.9.1 doesn't see CubeF7 1.17.1

Missing HardFault_IRQn values in CubeF4 v1.26.2 and CubeF7 v1.16.1 and 1.16.2

STM32CubeMX FreeRTOS heap usage estimate incorrect

CubeMX deletes existing pin assignments without warning

Unable to install CubeL4 version 1.15.1 (patch) in CubeMX

Re: STM32F4 Timer Period Discrepancy

Re: Using comparators and a high speed emulated/virtual SR latch - STM32F334xx

Re: UART not working while debugging

Re: UART fired only once

Re: STM32F746G-DISCO USBX CDC Com port enumerates but does not connect