lazsolt / lgt8fx

Board Package for Logic Green LGT8F328P, LGT8F328D and LGT8F328P-SSOP20

How to install

Add the package to the arduino Boards Manager Urls:

• Go to Preferences
  • paste this url in Boards Manager URL: https://raw.githubusercontent.com/dbuezas/lgt8fx/master/package_lgt8fx_index.json
• Go to Tools/Board/Boards manager
  • Type lgt8fx in the search box
  • install lgt8fx

Now the boards appear in the IDE. You can also select clock speeds, upload speeds and generic boards with external cystal.

32Mhz is twice as fast as a conventional arduino nano! Actually even faster as many operations take less clock cycles than in the atmega328p. Check out some benchmarks

Recommended read

Tutorials and details about this board: LGT8F328P - LQFP32 Boards • Wolles Elektronikkiste

Discussions, ideas, questions and show your project

• Explore the discussions: https://github.com/dbuezas/lgt8fx/discussions

Features

• Fast_IO update
• In-menu external clock support (by #seisfeld)
• In menu generic boards support with 1, 2, 4, 8, 12, 16 and 32 Mhz
• Automatic prescaler setup
• Digital Analog Converter
• Voltage References INTERNAL1V024/INTERNAL2V048/INTERNAL4V096/DEFAULT/EXTERNAL (useful for example for analogRead or DAC analogWrite via analogReference(xxx));
• Analog Comparator (page 224 of datasheet v1.0.4)
• Differential Amplifier. See this Example.
• Computation Accelerator (page 52 of datasheet v1.0.4) Work by others
• SoftwareSerial at any clock speed. Updated implementation without timing tables by #jg1uaa
• 2 to 6 high current 80ma IO pins (thanks #rokweom)
• 328p Arduino ISP (from #brother-yan)
• SSOP20 328p Support (by #LaZsolt)
• Accurate delayMicroseconds (by #LaZsolt)
• Faster Analog Read (by #jayzakk)
• Fixed analogReference (reported by #macron0)
• Enabled AREF pin as A10 analog input (by #jayzakk)
• Power reduce register definitions (by #KooLru)
• Support for interrupts on all timers and comparators (by #jayzakk)
• Arduino EEPROM API (by #SuperUserNameMan
• Lock bits. It seems this micro controller doesn't have flash lock bits.

Timers

This chip has more timers, each with more features than the atmega328p. Explore, configure and visualize timers for both atmega328p and lgt328p with this online tool https://github.com/dbuezas/arduino-web-timers

Differences to original core Larduino_HSP v3.6c

• Support 32 Mhz and other clock speeds
• Selectable ADC resolution (Arduino compatibile default is 10 bits)
• Differential Amplifier API
• Better Boards Menu
• Installation via Board Manager Urls
• SoftwareSerial @32Mhz
• FastIO ported from https://github.com/LGTMCU/Larduino_HSP

Power consumption @ 5v

Clock	Pro mini style w/o power LED	Pro mini style	Nano style
32MHz	12.7mA	15.0mA	32.6mA
16MHz	9.2mA	11.5mA	27.8mA
8MHz	7.1mA	9.4mA	25.4mA
4MHz	5.9mA	8.2mA	23.3mA
2MHz	5.3mA	7.6mA	23.4mA
1MHz	5.0mA	7.3mA	22.8mA

Example boards:

-->LGT8F328P-SSOP20

Pro Mini Style SSOP20

Pinout by [wollewald](https://github.com/wollewald)

-->LGT8F328P-LQFP32

WAVGAT Pro Mini Pseudo Clone

Chip marked as AVGA328P

Pro Mini style

Pinout by wollewald Visit his Electronic projects blog here https://wolles-elektronikkiste.de/en/

Nano Style

Pinout by wollewald

Like this pinout?

Create more pinouts for the other boards!

Wemos TTGO XI

Uno Style

-->LGT8F328D-LQFP32

LARDUINO Uno style

-->LGT8F328P-LQFP48

Nano Style

Pinout by [wollewald](https://github.com/wollewald)

Uno Style

Docs & links

• Check the Wiki for more content by contribuitors
• And you may also find something in the closed Issues
• Core is based on Larduino_HSP v3.6c with fastIO backported from https://github.com/LGTMCU/Larduino_HSP
• And inspired from Ralph Bacon's video: https://youtu.be/Myfeqrl3QP0 (Check his channel, he's uploaded a lot of great videos)
• Great place to gather data about this boards: https://github.com/RalphBacon/LGT8F328P-Arduino-Clone-Chip-ATMega328P
• Datasheet (Chinese) LGT8FX8P_databook_V1.04
• Datasheet (English) LGT8FX8P_databook_V1.04 thanks to #metallurge
• Datasheet (English) LGT8FX8P_databook_V1.05 By Watterrott
• Instruction set clk vs avr By unknown, claim if you are the author
• Work on the differential amplifier
• "Forbiden tech from China has arrived" https://www.avrfreaks.net/forum/forbiden-tech-china-has-arrived?page=all
• Larduino ISP for 328d https://github.com/Edragon/LGT/tree/master/Toolchain/LarduinoISP-master
• https://www.eevblog.com/forum/projects/anyone-here-interested-in-the-logic-green-avrs-lgt8f328p/
• http://coultersmithing.com/forums/viewtopic.php?f=6&t=1149
• LGT SDK Builder
  • "very useful during development, hopefully others can find it helpful too." @sengit
  • Document page : http://www.lgtic.com/2017/11/11/lgtsdk_builder/
  • Download link : http://www.lgtic.com/upload/tools/lgtsdk_builder/LGTSDK_Builder_latest.rar

PS: Just want to say thanks for this git, helped me a lot!

Disclamer

I have no association with Arduino, Logic Green, Atmel or anything. I just wanted to have a convenient way to use these boards and get them to work without hacks at max speed

Automated Releases

Each time a PR is merged, the release action will be triggered.

The following steps are executed

• Generate the release artefacts (the lgt8f-1.0.x.zip file)
• Update the package_lgt8fx_index.json file with the new version
• Commit and push those changes to the repository
• Generate a release with the artefact.

PRs that only touch the readme.md file, or the /docs folder will NOT trigger a release.

The action can be found here: https://github.com/dbuezas/lgt8fx/blob/master/.github/workflows/release.yml

Download stats

https://tooomm.github.io/github-release-stats/?username=dbuezas&repository=lgt8fx

Thanks

• #Larduino_HSP for doing 90% of the work
• #RalphBacon introducing most of us to the board
• #dcfusor for help with fast io backporting
• #HI-SEBA for help with software serial
• #dwillmore for creating the wiki, serial adapter troubleshooting, more examples of boards and wemos-TTGO-XI board support
• #seisfeld for adding in-menu support for an external oscillator
• #jg1uaa for the updated Software Serial without timing tables and missing methods
• #LaZsolt for adding SSOP20 lgt8f328p support and accurate delayMicroseconds
• #jayzakk for fixing the ADC prescaler for faster analog reads
• #wollewald for all the pinout diagrms

lgt8fx's Issues

avr\sleep.h: No such file or directory

When trying example idleWakePeriodic with latest from master (commit 5c1bc02) on MacOS Arduino v2.1.0 board LGT8F328P-LQFP48 I get:

/Users/***/Documents/Arduino/libraries/lgt_lowpower/src/lgt8fx_sleep.h:39:10: fatal error: avr\sleep.h: No such file or directory
 #include <avr\sleep.h>```

multiple errors with idleWakePeriodic

When trying example idleWakePeriodic with latest from master (commit 5c1bc02) on MacOS Arduino v2.1.0 board LGT8F328P-LQFP48 after addressing the issues in #1 I get:

/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:825:7: error: '_lgt8fx_delay_cycles' was not declared in this scope
       _lgt8fx_delay_cycles(4);         \
       ^
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:1051:29: note: in expansion of macro 'hfosc_up'
     if (hfosc == HFOSC_OFF) hfosc_up();    // Timed register value change sequence.
                             ^~~~~~~~
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:825:7: note: suggested alternative: '__builtin_avr_delay_cycles'
       _lgt8fx_delay_cycles(4);         \
       ^
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:1051:29: note: in expansion of macro 'hfosc_up'
     if (hfosc == HFOSC_OFF) hfosc_up();    // Timed register value change sequence.
                             ^~~~~~~~
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp: In member function 'void LowPowerClass::powerStandby(period_t, adc_t, bod_t, timer2_t, hfosc_t)':
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:825:7: error: '_lgt8fx_delay_cycles' was not declared in this scope
       _lgt8fx_delay_cycles(4);         \
       ^
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:1430:29: note: in expansion of macro 'hfosc_up'
     if (hfosc == HFOSC_OFF) hfosc_up();
                             ^~~~~~~~
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:825:7: note: suggested alternative: '__builtin_avr_delay_cycles'
       _lgt8fx_delay_cycles(4);         \
       ^
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:1430:29: note: in expansion of macro 'hfosc_up'
     if (hfosc == HFOSC_OFF) hfosc_up();
                             ^~~~~~~~
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp: In member function 'void LowPowerClass::powerExtStandby(period_t, adc_t, bod_t, timer2_t, hfosc_t)':
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:825:7: error: '_lgt8fx_delay_cycles' was not declared in this scope
       _lgt8fx_delay_cycles(4);         \
       ^
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:1742:29: note: in expansion of macro 'hfosc_up'
     if (hfosc == HFOSC_OFF) hfosc_up();
                             ^~~~~~~~
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:825:7: note: suggested alternative: '__builtin_avr_delay_cycles'
       _lgt8fx_delay_cycles(4);         \
       ^
/Users/whyameye/Documents/Arduino/libraries/lgt_lowpower/src/lgt_LowPower.cpp:1742:29: note: in expansion of macro 'hfosc_up'
     if (hfosc == HFOSC_OFF) hfosc_up();
                             ^~~~~~~~

exit status 1

Compilation error: exit status 1