If you are a professional developer, use the Official core as it is well supported, has an upgrade path to professional tools and corporate support. Roger's core was inherited from LeafLab's original effort: but that effort became unsupported around the time of ArduinoIDE ver 1.5x Steve (a founding member) uses Steve's core which is derived from Roger's core with some nice tweets. There are 4 or more cores, 3 which are viable: Official, Roger's, Steve'sīut only one core has the weight of STM and a dedicated staff and this forum to dialog with casual users of STM32 ARM uC, we call that one "Official" core: What are the differences between Roger´s and Official ones? No idea wjere you get it, but to me it seems solid gold. I have been looking for this something like one solid week non stop. SPI_2.setClockDivider(SPI_CLOCK_DIV16) // Use a different speed to SPI 1ĭelayMicroseconds(10) //Delay 10 micro seconds.ĭigitalWrite(SPI1_NSS_PIN, LOW) // manually take CSN low for SPI_1 transmissionĭata = SPI.transfer(0x55) //Send the HEX data 0x55 over SPI-1 port and store the received byte to the variable.ĭigitalWrite(SPI1_NSS_PIN, HIGH) // manually take CSN high between spi transmissionsĭigitalWrite(SPI2_NSS_PIN, LOW) // manually take CSN low for SPI_2 transmissionĭata = SPI_2.transfer(0x55) //Send the HEX data 0x55 over SPI-2 port and store the received byte to the variable.ĭigitalWrite(SPI2_NSS_PIN, HIGH) // manually take CSN high between spi transmissions SPI_2.setDataMode(SPI_MODE0) //Set the SPI_2 data mode 0 SPI_2.setBitOrder(MSBFIRST) // Set the SPI_2 bit order SPI_2.begin() //Initialize the SPI_2 port.
SPI.setClockDivider(SPI_CLOCK_DIV16) // Slow speed (72 / 16 = 4.5 MHz SPI_1 speed) SPI.setDataMode(SPI_MODE0) //Set the SPI_2 data mode 0 SPI.setBitOrder(MSBFIRST) // Set the SPI_1 bit order SPIClass SPI_2(2) //Create an instance of the SPI Class called SPI_2 that uses the 2nd SPI Port You can change it to the STM32 pin you want. #define SPI2_NSS_PIN PB12 //SPI_2 Chip Select pin is PB12. #define SPI1_NSS_PIN PA15 //PA4 //SPI_1 Chip Select pin is PA4. Using the first SPI port (SPI_1) REMAPPED
#Spi arduino due pins code#
Un-comment all the nessesary code lines marked with word. The sketch as it is, works with SPI_1 port. The received byte (the answer from the SPI slave device) is stored to the variable. This sketch sends one byte with value 0x55 over the SPI_1 or SPI_2 port. put your main code here, to run repeatedly: put your setup code here, to run once: Gpio_set_mode (GPIOB, 5, GPIO_AF_OUTPUT_PP) Gpio_set_mode (GPIOB, 4, GPIO_INPUT_FLOATING) Gpio_set_mode (GPIOB, 3, GPIO_AF_OUTPUT_PP) Afio_cfg_debug_ports(AFIO_DEBUG_SW_ONLY) // PB3 free
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