We’ll port the LCD driver in 4-Bit mode to make it easily configurable and portable across most STM32 microcontroller devices. Today’s tutorial is built upon the previous LCD one, and it’s assumed that you’ve got a basic understanding of the topics discussed earlier. In order to know, the internals of the LCD driver IC, it’s registers, commands, and how it works and gets initialized, etc. That’s why I highly recommend that you check it out right now. The Alphanumeric LCD 16×2 Tutorial did highlight everything you need to know. Assuming it has the standard Hitachi LCD driver HD44780 controller. Other types of LCDs provide different features such as the number of columns and rows (characters) and maybe colored display, and also different interfaces (parallel, spi, i2c, etc).įor this tutorial, we’ll consider the 16×2 LCD with a 16-pin header interface. You can use it to display text messages to the user, number, etc. We typically add a 16×2 Alphanumeric LCD to small embedded systems & projects to enhance the user experience and UI of the device/project. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network (EPN) and.
★ 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).I made global defines in Keil uVision under “Options for Target” -> “C/C++” tab.All the example code/LABs/projects in the course are going to be done using those boards below. Copy define corresponding to your board into defines.h file or make a global defines in compiler’s settings. The second option (I don’t prefer it) is, to set define only for this library. If you choose option one, then you will have no worries in my future libraries where library needs to know exactly which board is used! One (and I prefer it) is to check my DISCO library and follow instructions which define you have to set for proper board, and another, explained below.
The most important thing is to tell library, which board is used in target system.
Using proper defines (explained below) you can select which board is used.įor full pinout list, download and open LCD library and check header file with description. LCD pins are different for different board.
TM SPI when STM32F429-Discovery is used.Supports DMA2D graphic acceleration for fastest drawing operations.Read more about new HAL libraries Features Library requires FMC peripheral for SDRAM for display memory, DMA2D for fastest graphic accelerations and LTDC for transferring layers to LCD. With one library you can control 3 boards just by selecting proper define in your target. It’s the same as SDRAM, it works on STM32F429-Discovery, STM32F439-EVAL and STM32F7-Discovery boards. LCD is first big library provided from me.