About roger239955_stm1

roger239955_stm1 · 2023-07-31

Using the STM DFU DLL's to load firmware onto some 3rd party custom hardware, we have to call SelectCurrentConfiguaration becuase the bootloader in the hardware requires this before it allows the STM32F4xx ROM to be written to Normally this works OK...

roger239955_stm1 · 2022-09-29

Using the STM32Cube with a STM32F4, I set the SYSCLK to 96MhzWhich generates this code RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE|RCC_OSCILLATORTYPE_LSE; RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS; RCC_OscInitStruct.LSEState = RCC_LSE...

roger239955_stm1 · 2022-09-18

If I reduce the clock speed on a STM32F4 from 168Mhz to 96Mhz, with bus speeds reduced accordingly.Should the current consumption of the processor be reduced.I've been trying to take some current measurements, and there does not seem to be any reduct...

roger239955_stm1 · 2022-09-13

I need to generate PWM on a non-PWM pinI know one method is to use an ISR triggered by a timer, but because I need to run the PWM at 10kHz, this will put a huge load on the CPU just to toggle 1 pin.I've seen examples of using DMA to send data to the ...

roger239955_stm1 · 2021-12-21

I need to receive I2S from from a device which digitises microphone audio and acts as an I2S masterI have use the STM32 Cube configuation tool to set I2S3 as a Half-Duplex SlaveWhen I callHAL_I2S_Receive_IT()I the code receives the callback into void...

roger239955_stm1 · 2023-08-08

One other thing to note.After installing the STM32Cube programmer onto my PC, ourfirmware loader feature no longer worked.The STM32CubeProgrammer installed new DFU drivers which are incompatible with the old STM DFUSe application and DLLsLuckily I wa...

roger239955_stm1 · 2023-08-08

Thanks.Does the CubeProgrammer_API.dll have the same API as the old STDFU.dll and STTubeDevice30.dllI also don't see any information files related to distribution of the DLL's in the installation files.Unlike the old version which had STM_License_SLA...

roger239955_stm1 · 2023-08-08

Just in case anyone else has this problem.You need to set the application locale / cultural setting to English / USA . Probably any English cultural configuation would be OK, but US English definitely worksI've no idea why the STM DFU dll gives and e...

roger239955_stm1 · 2022-12-01

In my experience bootloaders only normally configure the essentials for the firmware to be loaded, and don't configure any other interfaces e.g. Serial , I2C etcI have seen some bootloaders which deliverately use HSI so that they are not reliant on t...

roger239955_stm1 · 2022-12-01

I don't know if this is still a problem, because I am no longer debugging the firmware using an external debugger.However, I think I now know what causes the problem.The STM32Cube code assumes the code is not started via a bootloader.Because I was us...

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Error 12340002 using STM DFU DLL's SelectCurrentConfiguration

HAL_RCC_GetSysClockFrequency shows different frequency to STM32Cube clock config tool

STM32F4 Current consumption versus clock speed

PWM on non PWM pin

Problems with HAL_I2S_Receive_IT

Re: Error 12340002 using STM DFU DLL's SelectCurrentConfiguration

Re: Error 12340002 using STM DFU DLL's SelectCurrentConfiguration

Re: Error 12340002 using STM DFU DLL's SelectCurrentConfiguration

Re: Application runs very slow using the debugger

Re: Application runs very slow using the debugger