WebJun 24, 2024 · Thu Jun 24, 2024 9:06 am. Most overlays and dtparams should include all of the alternate function settings required - it isn't necessary to use the "gpio=" config.txt setting. For help on any overlay, e.g. spi0-1cs, run "dtoverlay -h spi0-1cs" in a Linux shell. "dtparam -h ..." does the same thing for the dtparams. WebSep 12, 2024 · An example would be SPI1, which can be accessed either as alternate function 0 on port A pins 5-7, or as alternate function 0 on port B, pins 3-5. But for this example, we will be looking at USART1, which from …
stm32 - STM32F4 SPI1 working, SPI5 not working?
WebSTM32F4 Standard Peripheral bibliotheek: GPIO Alternate functions configuration function STM32F4 Standard Peripheral bibliotheek Functions GPIO Alternate functions configuration function GPIO_Private_Functions GPIO Alternate functions configuration function. More... Detailed Description GPIO Alternate functions configuration function. WebMar 26, 2024 · Then, SPI1, which should be identical. Replace SPI2 registers with SPI1, exact same code. Always prints 0, regardless of the actual input pin state! I have debugged the IO pin structure by configuring the MISO pin as general purpose input instead of alternate function, and copy its value (in a while (1) loop) to a random output pin, which I scope. richworks
STM32F4 Alternate function mapping - Programmer All
WebGPIO_AF_SPI1: Connect SPI1 pins to AF5 ; GPIO_AF_SPI2: Connect SPI2/I2S2 pins to AF5 ; GPIO_AF_SPI4: Connect SPI4 pins to AF5 ; ... Refer to the Alternate function mapping table in the device datasheet for the detailed mapping of the system and peripherals alternate function I/O pins. Return values. Web#define GPIO_Remap_SPI1 ((uint32)0x00000001) /* SPI1 Alternate Function mapping */ ... /* SPI3/I2S3 Alternate Function mapping (only for Connectivity line devices) */ #define … WebDec 20, 2024 · The auxiliary SPI will not accept modes 1, or 3. I’ve enabled spi1-1cs, and /dev/spidev1.0 is created. I can send and receive data but only SPI_MODE_2 and … rich work author