About JPhan.1

JPhan.1 · 2021-06-14

Hello Group,I am reading SPI from the Nucleo STM#@F401RE with the ST accelerometer LIS2DW12. I set the chip-selected pin low during the transition, but I saw the selected pin go high.How I fix this problem?Thanks a lot for your time,Jackvoid readId()...

JPhan.1 · 2021-07-02

Hello Group,I have the same problem when working BLE + SPI in the board stm32wb55RG.I tried to use BLE and SPI in STM32WB55RG but it has errors after generated code.The error is: HAL_SPI_Init(..) because it doesn't have the file stm32wbxx_hal_spi.cWh...

JPhan.1 · 2021-06-15

JPhan.1 · 2021-06-15

Hello Group,I found my problem. My logic analyzer ground connection is loose and that causes this problem.I put here the correct result.Thanks,Jack

JPhan.1 · 2021-06-14

Yes, set the chip-selected pin as GPIO output and control it.During the transition, I set it low, but I see a glitch that goes high. So what is the problem causes this.Thanks,Jack

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The chip-selected pin goes high even set low during SPI transition

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Re: The chip-selected pin goes high even set low during SPI transition

Re: The chip-selected pin goes high even set low during SPI transition