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DAnsp · 2018-11-16

On the STM32L4R5 I'm seeing unusual results reading a signal from the differential input ADC1_IN5 (Which uses ADC_IN5 / ADC_IN6 pins). When I apply an identical voltage to both differential pairs I see the reading vary with voltage, but the differen...

DAnsp · 2020-05-09

Not sure if it's different on the STM32L073, but stopping the TX/RX DMAs, deinitializing them, shutting down the SPI, then reconfiguring everything didn't flush that byte from the TX buffer.

DAnsp · 2020-05-08

I've been struggling with a similar problem on an STM32L073 and resetting the SPI though the RCC_APBxRSTR bit and reconfiguring it did not resolve this issue. I'm using the SPI in full duplex slave mode. The workaround I've come up with to flush th...

DAnsp · 2020-05-08

On the STM32L073, I've successfully enabled the EXTI on the NSS pin (PA15 in this case) while using hspi1.Init.NSS = SPI_NSS_HARD_INPUT in slave mode.The key here is to initialize the EXTI first using something similar to the following:void MX_GPIO_I...

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STM32L4R5 Differential Channel Issue on ADC1_IN5 (using pins ADC1_IN5 / ADC1_IN6)

Re: How to clear internal SPI TX buffer in slave mode after transaction cancellation? SPI used in slave mode with DMA circular buffer.

Re: How to clear internal SPI TX buffer in slave mode after transaction cancellation? SPI used in slave mode with DMA circular buffer.

Re: SPI Slave NSS Interrupt