How to add FPGA bin file in BOOT.bin, for FPGA configuration with Linux

This guide will explain how to recompile U-Boot, in order to add FPGA configuration bin file in BOOT.bin.

In order for FSBL to configure the FPGA at power up and before starting Linux, it must be added to the boot file immediately after FSBL, otherwise it will not find it. It is necessary to use the * .bit file. Because in the * .bin file there is no header and it does not start via FSBL. Boot.bin looks like this:

Embedded Linux on Zynq, how to transfer files from a computer to Linux

How to run Linux on Zynq was described here.

By default, to transfer files to the Linux kernel from Xilinx, you can use several methods, which are described on their wiki: xilinx-wiki.atlassian.net.

Files can be transferred to the working system both via the Ethernet port and via the USB (UART) port. But since the file system is in RAM, when the power is turned off, added files will disappear. To save them you will need to change the rootfs file system. First, let's try transferring files via ethernet.

How to compile Linux for Zybo (Zynq) development board and start it from QSPI

This article will describe how to prepare all the necessary files to run Linux from the Xilinx FPGA, namely the Zybo debug board. With the subsequent writing of the necessary files on QSPI and the launch of the finished system.

This article is based on the following guides:
instructables.com, xilinx-wiki.atlassian.net, github.com.

FPGA development will be done in Vivado 2019.1, The necessary files for Linux will be compiled in a virtual machine Oracle VM VirtualBox, on which Ubuntu is installed.

Compilation will take place without PetaLinux, which, as Xilinx claims is a platform that contains everything you need to run Linux on FPGA and makes it easy to make changes. In this manual however, everything will be assembled manually, in order to take a closer look at the work of embedded systems.

Working with BMP file C++ convert image in to an array

I described insides of the BMP file Here.

I needed a program which converts bmp image in a 2 dimensional array of 0 and 1. So i could display the image on the LCD display from Nokia 5110.

Here I have the source code, written in C++, now i will explain how it works.

int main(int argc, char *argv[])

How the BMP (bitmap) image looks from the inside, in binary

I needed to create a mitmap image in to code converter for Nokia 5110 display. So i decided to use .bmp images, just because they are simple.

If you want to look inside image file (binary code) you can use any "hex editor", if you open any file, programm will display to you hexadecimal codes from which this file consist of. I use "Hex Editor XVI32"

nokia 5110 LCD display AVR

Now i will write about nokia 5110 display.

Working with LCD display on HD44780 AVR

If you need only ready to use library, you can get it here.

Datasheet

I ordered display from ebay, 2 lines by 16 symbols.