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Using STM's MDMA example, I setup a simple loop to transfer an array of 1000 bytes 100 times.The code worked but the MDMA transfer were causing glitches on the VDD rail.I then compared it to memcpy, and to my surprise found that it was around 18% fas...
Changing VRef source would seem simple, but it doesn't work, there is no change in the levels the ADC records. __HAL_RCC_VREF_CLK_ENABLE();HAL_SYSCFG_DisableVREFBUF(); // Disable the Internal Voltage Reference buffer, uses external 3.3vHAL_SYSCFG_VRE...
Both F407 and H743 ADC input add DC-bias to AC connected inputs, very handy, but I would like to have the specifications for this feature, perhaps even a circuit diagram explaining how the MCU averages the AC input above ground as needed.I have read ...
Since updating the Cube IDE last week it's listing  9 link errors on compile related to the MCU tools, nano lib, but if I just compile it again the errors disappear!Before the update this didn't occur.If anyone else has this or knows a fix, please le...
After using STMCubeProgrammer 2.21 to set the RDP byte to BB, the board works fine, but Cube programmer is later unable  to access the board; I've tried different modes, under reset etc.  The disk folder shows when plugged in to the USB with FAIL.txt...
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