Hello World on a breadboard Intel 8086 - I/O OUT instruction - part 9 скачать в хорошем качестве

Hello World on a breadboard Intel 8086 - I/O OUT instruction - part 9

Building an Intel 8086 microprocessor to write assembler ASM86 machine code to write hello world to an LCD display - part 9 If you haven't seen parts 1, 2, 3, 4, 5, 6, 7 & 8 I highly recommend you check these first. In this video I examine the LCD 1602 display data sheet to understand how to connect this to the 8086, and the data sheet indicates it should be connected using I/O port. So I explain the 8086 I/O OUT instruction and how we will use the OUT instruction to write to port 10Hex. As we are using the OUT IO 86 instruction this utilises the write operation, where before we have been using the read operation to read from the EPROM. Using write we write data out on the datalines and can therefore write instructions to the LCD display, plus we can utilise the write and IO pins on the 8086 together with this port 10hex to set the RS signal to the LCD from a zero to a 1. I then connect the NAND and AND logic to LCD signal pins E RS and RW and then the 8086 datalines D0-D7 to the data lines on the LCD. In my final part 10, I will write the ASM86 code, and use NASM compiler to generate the code to write 'hello world' and complte the series