I usually make a typedef for something like a reg32_t type in order not to forget. Otherwise the compiler may end up optimizing out your code. Get in the habit of always using the volatile keyword when accessing peripheral registers.*pPortAModeReg &= ~(0x03 BSRR = (1U<<5) //or however you want to address that register They carry external circuitry, such as transceivers, sensors, memory interfaces, displays and many more. For GPIOA Pin 5 you need to manipulate bits 10 and 11. The STM32 eval boards have been designed as a complete demonstration and development platform for the STM32 MCUs and MPUs. configure the mode of the IO pin as output Then you set GPIO mode as, quoting you: //2. You activate clock to GPIO Port A correctly (also, GPIOA registers would also read all 0x00 is it hadn't been activated). I ran through your code with reference manual in hand. I am suspecting that the pin PA5 is wrong, but i tried PA12 too and it does not work. Using the register viewer from the IDE, I can see that the PA5 is set as output, but physically, my led is not turning on. SET 12th bit of the output data register to make I/O pin-12 as HIGH enable the clock for GPIOA peripheral in the AHBENR STM32 Nucleo 64 Boards UM1724 User Manual WebUser Manual - Electronic. I am using the following code to set/clear the registers in the board: #include WebDownload this manual UM2505 User manual STM32G4 Nucleo-64 boards (MB1367). The user manual states the following addresses for the clock, mode and data registers: Led pin: PA5Īddress of the Clock control register: RCC_AHBENRĪddress of the GPIOA output data register USB 2.I am trying to turn the led (LD2 in schematic) inside the nucleo board on using only registers with the STM32CubeIDE.USB 2.0 full-speed device/host/OTG controller with on-chip PHY.Up to four SPIs (45 Mbits/s), three with muxed I 2S for audio class accuracy via internal audio PLL or external clock.Up to four USARTs and two UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control).Up to 114 I/O ports with interrupt capability.Up to 17 timers: 2x watchdog, 1x SysTick timer and up to twelve 16-bit and two 32-bit timers up to 180 MHz, each with up to four IC/OC/PWM or pulse counter.General-purpose DMA: 16-stream DMA controller with FIFOs and burst support.3× 12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode.V BAT supply for RTC, 20×32 bit backup registers plus optional 4 KB backup SRAM.32 kHz oscillator for RTC with calibration.Internal 16 MHz factory-trimmed RC (1% accuracy).1.7 V to 3.6 V application supply and I/Os.This user manual describes the procedure to configure the X-NUCLEO-IHM07M1 expansion board to operate with an STM32 Nucleo board. LCD parallel interface, 8080/6800 modes The driver used on this STM32 Nucleo expansion board is the L6230, a DMOS fully-integrated driver for three-phase brushless PMSM motors, assembled in a PowerSO36 package, with overcurrent and thermal protection.Flexible external memory controller with up to 16-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND Flash memories.Core: Arm ® 32-bit Cortex ®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait state execution from Flash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions.
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