DMA in STM32 can work in normal or circular mode. Copy the GPIO project and modify the name of the file fold. The required and optional configuration properties of these functions are documented in STM32 TIM MFD device tree bindings. If I enable in AED IER both EOSIE and EOCIE, everything works fine ie. STM32 LPTimer (LPTIM) is a 16-bit timer that provides several functionalities.
At high sample rates, you need to use a hardware timer to trigger a DMA write to SPI TX register, and setup a DMA request on SPI RX in circular mode with half transfer and transfer complete interrupts enabled. Trigger Sources of DAC: The DAC of the STM32 has three major trigger sources: Timer triggered. osprey lodge dunkeld The External Trigger Conversion Source is set to "Timer 4 Trigger Out Event", which corresponds to the previously mentioned timer configuration. On ADC side, to enable interrupts I clear the ADC ISR register and then set ADC_IER, before starting the conversion.
NUCLEO F401RE EXAMPLE CODE CODE
If the initilization was not done by MX_GPIO_Init() function, we would need to add this line of code into main.Stm32 timer trigger source. Correction, all the initialization is done in MX_GPIO_Init() function. To do this we need to enable clock for port A. With Cortex-M microcontrollers this is a little more complicated than with let’s say AVRs or PICs. For now we will use a couple of commands to configure it, we won’t go in details what each of them does, because in this tutorial we only want LED to blink so that we know our compiler and hardware works. Everything that is outside of these gets deleted when regenerating project in CubeMX. Below is a screenshot of that connection.īefore we start adding code to any of the files in our project it is important that you only add code between /* USER CODE BEGIN */ and /* USER CODE END */ and that is because what is in between here it stays here when you regenerate project in CubeMX. We can find the pin where LED is connected to in this pdf on page 66. – add delays in loop so that we can see that LED blinks – create a loop in the main section of main.c We need to do a couple of things before the LED will start blinking: Double click on it and it will open in editor. Now we need to open main.c and start adding our program. Here is where we will start to program our blinky with our own code. This means that program has been properly compiled without errors. It might take a while but at the end you must see text like this in console. Now click on Build Project (a little hammer on toolbar). This means that you have properly installed CubeMX and SW4STM32. You should get this popup window from SW4STM32. Click on Open Project and the project will be imported in SW4STM32. Now select in menu Project > Generate Code.Īfter project is generated a popup window will show. The rest you can leave as it is and click Ok. Project Name is just a name for your program (I use a practice for not using any space in names, I use underscore instead of space).įor Project Location I would suggest the place of your SW4STM32 workspace.
You need to enter Project Name, Project Location and set Toolchain / IDE to SW4STM32. All we need is to tell the Cube whrere to store our program and which compiler we will be using. The setting we need for our Blinky are already set. Finally select NUCLEO-F401RE because our microcontroller is STM32F401RET6.
NUCLEO F401RE EXAMPLE CODE SERIES
In the MCU Series select STM32F4 -> F401RE. As Board select Nucleo64, because our board fits in this group. As vendor select ST as this is only option. At the top select tab named Board Selector it is easier ths way and some setting that are specific to this board are already configured. This is window for selecting microcontroller/board we will be using. Purpose of this tutorial is just to get LED to blink. We won’t go into details about each line of code.
NUCLEO F401RE EXAMPLE CODE HOW TO
As mentioned in previous article in this one I will explain how to blink LED on Nucleo F401RE using STM32CubeMX and SW4STM32.
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