verilog tutorials for iCE40HX8K Breakout Board
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README.md

README.md

verilog files for iCE40HX8K Breakout Board, build with IceStorm. These files are designed to be used with verilog tutorials see bottom-left here:

https://embeddedmicro.com/tutorials/mojo/creating-a-project

Install IceStorm: http://www.clifford.at/icestorm/

Clone the repository:

git clone https://github.com/peepo/verilog_tutorials_BB

Download user guide

read pages 5-6
NB: make upload uses -S to program SRAM so please remove J7 jumper and rotate 2xJ6 jumpers

Build one of the examples:

cd project
make
make upload

Projects:

Project name brief description
0 LED
00 LED with +out
000 switch tbc
1 button button
2 Sync Logic LED blink 1Hz
3 PWM1 LEDs fade 4x, 6x with clk_50 from divider
4 PWM2 LEDs clk 8 LEDs fade in and out together ~1.5hz ?anomalous
5 PWM3 LEDs wave 8 LEDs fade in and out in sequence 12MHz
5_PLL PWM4 LEDs PLL 8 LEDs fade in and out in sequence 25/48/96MHz
6 _tb1 testbench basic and
7 _tb2 testbench clk pwm for a couple of values
8 ext button ext button 6,800Ω connects +ive to input and switch, -ive to other end
9 metastability ext button with debounce
10 PWM5 servo arm swings through range: red-TP1 brown-TP3 orange-P16
10_vga colour VGA PLL display bars 640x480
Hello World AVR rely on AVR microcontroller in mojo, PIC is competitor
---- -- mimas, XuLA2 have PIC18F14K50,
SPI- -- logipi may not have microcontroller? has spansion flash
LogiCore RAM no project...
17 Timing 12Mhz Total path delay: 84.10 ns (11.89 MHz)?
18 Timing_pipeline 12Mhz Total path delay: 37.28 ns (26.83 MHz)
19 FSM LEDs 2x left_PWM & right_PWM, maybe also 5x states, ie forward....
Memory mapping AVR ibid
SDRAM N/A MimasV2possibly or XuLA2 SDRAM before writing to SDcard
Embedded processor N/A skipping for moment.

please send comments, and report bugs to the current maintainer: Jonathan Chetwynd

jay@peepo.com

you may like these other excellent verilog tutorials:

https://github.com/Obijuan/open-fpga-verilog-tutorial/wiki

https://nandland.com/verilog/tutorials/tutorial-introduction-to-verilog-for-beginners.html