STM32F407 Disc SPI3 initially it's working fine then MISO pin stop working?

[MarkEvens]

I am using STMCubeIDE for my project.

SPI3 connected with PC10, PC11, and PC12  pins but When I connected the logic analyzer with the PC11 pin while reading TMC5160 register it showed nothing. The pin will be high whatever I do.

I know this thing not give you a full Idea but tell me anything you want I will share it. B-coz I don't know what info will be useful to debug.

[waclawek.jan]

> When I connected the logic analyzer

Then it sounds like hardware damage, it may be on either side (STM32, target, LA) or all.

SCK works?

You can try to bit-bang some basic protocol to exclude any other influence.

JW

[Sarra.S]

Hello @MarkEvens, 

Maybe share your SPI3 configuration/ connection with TMC5160 chip 

[Tesla DeLorean]

Look at reasons why the Slave device isn't responding.

Is there a pin controlling I2C/SPI mode, or how chip select is activated.

Is it always doing this or does it work for a period after the power is cycled. How long and what access patterns? 

[MarkEvens]

Logic analyzer Image

White                    -> sck

Second orange    -> CS

Red is                  -> MOSI

Last is                  ->  MISO

[MarkEvens]

hspi2.Instance = SPI2;

hspi2.Init.Mode = SPI_MODE_MASTER;

hspi2.Init.Direction = SPI_DIRECTION_2LINES;

hspi2.Init.DataSize = SPI_DATASIZE_8BIT;

hspi2.Init.CLKPolarity = SPI_POLARITY_HIGH;

hspi2.Init.CLKPhase = SPI_PHASE_2EDGE;

hspi2.Init.NSS = SPI_NSS_SOFT;

hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;

hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;

hspi2.Init.TIMode = SPI_TIMODE_DISABLE;

hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;

hspi2.Init.CRCPolynomial = 10;

if (HAL_SPI_Init(&hspi2) != HAL_OK) {

is_hspi2_initialized = 1;

}

hspi3.Instance = SPI3;

hspi3.Init.Mode = SPI_MODE_MASTER;

hspi3.Init.Direction = SPI_DIRECTION_2LINES;

hspi3.Init.DataSize = SPI_DATASIZE_8BIT;

hspi3.Init.CLKPolarity = SPI_POLARITY_HIGH;

hspi3.Init.CLKPhase = SPI_PHASE_2EDGE;

hspi3.Init.NSS = SPI_NSS_SOFT;

hspi3.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;

hspi3.Init.FirstBit = SPI_FIRSTBIT_MSB;

hspi3.Init.TIMode = SPI_TIMODE_DISABLE;

hspi3.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;

hspi3.Init.CRCPolynomial = 10;

if (HAL_SPI_Init(&hspi3) != HAL_OK) {

is_hspi3_initialized = 1;

}

This is spi initialization and below is my used pins

[MarkEvens]

Only write register is working

[MarkEvens]

Thank you everyone for your support.

I found a mistake I am using the TMC5160-BoB module which has two separate supply options one is for the motor and the second is named vcc_io.

So I am trying to read from the module without powering the motor supply pins. That is the main power supply for the module. vcc_io is just for resetting the module it is not providing complete power to module 😂

So as I powered the motor pins it started working.