About DanF

DanF · 2023-05-05

I have a project using a STM32H743 (LQFP144). I want to migrate it to a STM32HA3. It seems like it should be fairly pin compatible, but in Stm32CubeMX when I use the Alt-L (Pinout Compatible) option, the STM32HA3 isn't there. Is this a lag in the Cub...

DanF · 2023-04-28

I have an STM32H7 on a custom board. We do not have VBAT connected to anything. We do have a battery always connected to VDD. When I reset the MCU using the NRST pin it seems like the backup domain (registers and RAM) are not maintained. Is this expe...

DanF · 2022-05-05

I have an SPI peripheral that generates an external signal (EXTI) when a data record is ready. The data is then read over SPI by the MCU. The data record is 72 bytes.Right now I have an interrupt handler that starts the DMA process to read the next r...

DanF · 2023-11-01

A little more information. The error itself only occurs when I attempt to quantize the model into 8 bit data types by adding these lines when creating the TF Lite model: converter.target_spec.supported_ops = [tf.lite.OpsSet.TFLITE_BUILTINS_INT8]conve...

DanF · 2023-11-01

Is this still the correct syntax? I am using Cube AI 8.1.0 and when I add: --optimize.fold_batchnorm False" I get an unrecognized argument error.

DanF · 2023-05-05

Thanks for the reply. So did you do any type of migration using STCubeMX or just manually remap pins and recompile?

DanF · 2023-04-28

Thanks Peter/Pavel.After some testing, even if VBat is not connected, the backup registers/RAM are preserved through a reset using the NRST pin. (We're not using a Nucleo board, so VBat is not connected). We will connect VBat to Vdd to handle the iss...

DanF · 2023-04-28

Thanks for the quick response. Just to completely confirm... it looks like the backup domain is connected to Vdd when Vdd has power. (See attached figure 23 from page 265 of STM32H7 RM 0433 rev 7.) In my device I always have power to Vdd even when I ...

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Migrate from STM32H743 to STM32HA3

On STM32H7 if VBAT is not connected, but VDD is always present. Does NRST maintain backup registers?

Sync DMA request every 72 bytes based on GPIO signal

Re: TOOL ERROR: operands could not be broadcast together with shapes (32,7200) (32,)

Re: TOOL ERROR: operands could not be broadcast together with shapes (32,7200) (32,)

Re: Migrate from STM32H743 to STM32HA3

Re: On STM32H7 if VBAT is not connected, but VDD is always present. Does NRST maintain backup registers?

Re: On STM32H7 if VBAT is not connected, but VDD is always present. Does NRST maintain backup registers?