The ECUAL driver for the servo motor for example will check its configuration file to know which timer is assigned to it by the user (the application programmer) and therefore, initialize this timer and do its work. So the application code doesn’t talk directly to TIMER1 or USART3 or whatever. Anything on the ECU level that supports the functionality of the MCU in the embedded system shall go into this layer.Īn ECUAL driver is basically a set of functions that initialized the MCU HW via the HAL and does the calling of HAL functions, necessary calculations, algorithms, and utilities, in order to abstract the hardware handling from the application layer.
STM32 DRIVER LCD DRIVERS
The hardware drivers which interface the microcontroller to the outside world of sensors, IO units, displays, memories, and so on. We’ll introduce a new layer called ECU Abstraction Layer (ECUAL) where we’ll populate our external drivers. So, it’s OK!Īdding ECUAL Layer To The Software Layered Architecture
STM32 DRIVER LCD PORTABLE
This will make it a little bit more complicated, and it should, but in the name of making our applications more portable and easily configurable. And that’s why we’re going to make a small change to it. There are a lot of examples where this simple way of architecting the software would fail and be painful to port or configure. This significantly reduces the application code portability across multiple platforms and even introduces the possibility of clashes on the same target MCU itself (like a servo motor being hooked to TIMER2 CH1 meanwhile ultrasonic driver is hooked to the same hardware TIMER). You’ll end up with an application code that is tied up to the underlying HAL drivers (like a servo motor that is hooked to TIMER2, or whatever). However, proceeding with this setting will result in more problems in the future. There were no issues in this and you can justify this by saying its a simple architecture and looks clear enough. The Previous Software Layered Architecture As you can see the application layer is built upon the HAL and LL drivers from STMicroelectronics.
The software architecture we’re sticking to was this one in the diagram below. Now, after 20 tutorials in this series, I think it’s time to make a small change in the way we’re writing applications’ code. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network (EPN) and.
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★ Check The Full Course Complete Kit List ST-Link v2 Debugger or ( eBay) QTY Component Name 🛒 🛒 2 BreadBoard Amazon eBay 1 LEDs Kit Amazon Amazon eBay 1 Resistors Kit Amazon Amazon eBay 1 Capacitors Kit Amazon Amazon eBay & eBay 2 Jumper Wires Pack Amazon Amazon eBay & eBay 1 9v Battery or DC Power Supply Amazon Amazon Amazon eBay 1 Micro USB Cable Amazon eBay 1 Push Buttons Amazon Amazon eBay 1 Alphanumeric LCD Module Amazon eBay.Blue Pill STM32-F103 (ARM Cortex-M3 72MHz) or ( eBay).Nucleo32-L432KC (ARM Cortex-M4 80MHz) or ( eBay).
STM32 DRIVER LCD HOW TO
3 How To Add An ECUAL Driver To A New STM32 Project? Īll the example code/LABs/projects in the course are going to be done using those boards below.2 Preface To The Software Architecture.
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