![]() 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 For GPIOA Pin 5 you need to manipulate bits 10 and 11. 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. The following schematic diagram shows the connection of a push button. 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. Therefore, a logic high input reflects on the digital input pin of STM32 Nucleo board. 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 I am using the following code to set/clear the registers in the board: #include The STM32 Nucleo board does not require any separate probe as it integrates the ST-LINK/V2-1 debugger/programmer. One is used for STM which are male pins and the second are female pins used for Arduino. In STM32 Nucleo there are two types of connection pins. It has an ARM Cortex 32 Bit microcontroller that comes only in a single package LQFP. 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 STM32 Nucleo F401RE is a low cost and quick to use a development board. 2.4 GHz RF transceiver supporting IEEE 802.15.I am trying to turn the led (LD2 in schematic) inside the nucleo board on using only registers with the STM32CubeIDE.Board-specific features (STM32WB55RG only).Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded Workbench ®, MDK-ARM, STM32CubeIDE, and Mbed Studio.Comprehensive free software libraries and examples available with the STM32CubeWB MCU Package Description The STM32 Nucleo-144 board provides an affordable and flexible way for users to try out new concepts and build prototypes by choosing from the various combinations of performance and power consumption features, provided by the STM32 microcontroller.On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port.On-board footprint to mount a CR2032 battery socket.Flexible power-supply options: ST-LINK, USB V BUS, or external sources.Integrated PCB antenna and SMA connector footprint.Board connectors: ARDUINO ® Uno V3 expansion connector ST morpho extension pin headers for full access to all STM32WB I/Os.STM32WB55RG (1-Mbyte Flash memory, 256-Kbyte SRAM, in VFQFPN68 package) or STM32WB15CC (320-Kbyte Flash memory, 48-Kbyte SRAM, in VFQFPN48 package) ultra‑low‑power wireless microcontroller featuring: Dual-core 32‑bit (Arm ® Cortex ®-M4 and dedicated M0+ CPU for real-time radio layer) 2.4 GHz RF transceiver supporting Bluetooth ® specification v5.2. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |