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half-duplex spi slave can't transmit datas

i used stm32f031 as master & slave, NSS is alwasy low, connect MOSI and MISO. the master transmit datas successfull then changing the master direction to receive data( SPI->CR &=~SPI_CR1_BIDIOE), at the same time slave recv and try to transmit data...

Jseyn.1 by Associate III
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Trying to learn the STcube/HAL-interfaces on a NUCLEO-F446RE but got stuck at a very basic level. To control a pin (LED) worked well but trying to read the button-pin (PC13) doesn't seem to work. Though an example with interrupt on that pin work. See ex.

 HAL_Init(); SystemClock_Config();// Configure the system clock to 180 MHz __HAL_RCC_GPIOA_CLK_ENABLE(); GPIO_InitStruct.Pin = GPIO_PIN_13; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOC, &GPIO_InitStr...

RLind.2 by Associate II
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Resolved! F4 and F7 SPI CLK waveform

During testing an SPI DAC (TI DAC8563) on an STM32F446RE (where it works) and on an STM32F767ZI (where output is always 0V), I noticed a different SPI clock waveform.In F4 you have three "8 pulses" signals from CLK (the message from MOSI is 24 bit), ...

0693W000004J8AmQAK.png 0693W000004J8B1QAK.png

HRTIM v2 - PWM higher than 16 bits

I'm using HRTIM to generate 16 bit duty cycle PWM on a G474, it works nicely.How can I configure the HRTIM to do more than 16 bit duty cycle?I've read the HRTIM cookbook and had a look at what configuration options are available in the HAL. I was hop...

Mac by Associate
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Resolved! timer clock

I am using STM32H743ZI2. I am confused timer internal clock. In F4, I can easily find which clock to control which timer, in h7 series manual, I can't find it easily. anybody knows that?

yang hong by Associate III
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Why does the SPI slave work different between G431 and G474?

The set-up is STM32G474 master can be connected to either STM32G431 or STM32G474 through LVDS transceivers (which delays the signals). The system clock is 170 MHz on all processors. The master uses low polarity clock edge one. The 431 works at 21....

BSout.1 by Associate II
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