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dan0 · 2020-03-27

I am using memory mapped mode of the QSPI peripheral on an STM32L452. I can see in the memory view at address 0x90000000 the bytes i expect. However, when dereferencing the pointer to that memory all i get is 0xFF's. In the attached photo you can see...

dan0 · 2020-01-13

I'm using the STM32L4 Nucleo board with a N25Q256 SPI Flash attached. I can successfully read and write from the spiflash using the QSPI peripheral + HAL layer in standard SPI mode. However when switching to Quad mode, every so often during a longer ...

dan0 · 2018-09-19

Trying use the dsfdm peripheral on the STM32L452 MCU to read from an AD7403 adc. The ADC is clocking out data, but the conversion values I'm seeing don't make sense.DFSDM setup is below. GPIO and setup in other functions. Those setups are OK because ...

dan0 · 2020-03-31

Hello All-Thanks for the replys, but I've solved the problem. I had the wrong number of dummy cycles programmed (0 when i needed 8). This was on a N25Q256 spi flash.

dan0 · 2020-03-30

I tried from boot w/out a memory view but still read 0xFF. Thanks for the idea though.

dan0 · 2018-09-20

The output of the AD7403 is a bitstream, thus moving so hard to capture and compare with a datasheet diagram.My first question is, the AD7403 is a 16bit ADC, does that mean i need to use the right bit shift in ST DFSDM peripheral?Secondly, AD7403 dat...

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Can't deference memory mapped qspi

STM32L452 QSPI Errors

Using DFSDM peripheral to read from sigma delta modulators (AD7403 specifically).

Re: Can't deference memory mapped qspi

Re: Can't deference memory mapped qspi

Re: Using DFSDM peripheral to read from sigma delta modulators (AD7403 specifically).