AVR

Discussions 81

1. Flashstorage made for Duo

   victor_pv· Fri Jan 13, 2017 10:28 pm

   …by using a block of flash memory, since the DUE doesn’t have internal eeprom like the AVR does. We already have a library for such, and I think there is some older thread commenting on it. Also there is an example of using it: Arduino_STM32/STM32F1/libraries/E…

2. Hacking the GD32 based ‘Autool X50 OBD2 Monitor and diagnostic Display’

   sheepdoll· Tue Apr 24, 2018 3:22 am

   …ge I use for scripting) is rather good at parsing ascii binary sequences. Over on the AVR freaks forums I was able to use Ghostscript to decode the encoded numerical states of of a mixed Graphics/Segment display from a Yamaha PSR 620. https://www.avrfreaks.net…

3. How to change the clock speed of STM32L476RG nucleo board?

   SHARANYA· Sun Nov 26, 2017 2:20 pm

   … ask. Why the signals are Sinusoidal type in nature?I scoped a signal coming out of a AVR at 2MHz that was perfectly square.Is this happening due to the scope’s bandwidth?My scope is Rigol DS1102E which has a 100MHz bandwidth!

4. I2C Oled (two libraries)

   …7 pm Hi Guys, I’ll try to use SSD1306 I2C library but it doesn’t show anything, on my avr same display shows adafruit samples, but here after I added library from this post, choose example I2C STM32, nothing happen, on both I2C ports, is anything else to set i…

5. I2C issue with MLX90640

   …temperature should be faster. The reason to use Arduino was that i can switch from my AVR to an ESP8266 without any problem. Some parts with ESP32 works also easy. The STM32-Test with Display (3,2″ and 3,5″ Kuman) was also very impressive. But i am not able to…

6. IDE Arduino 1.6.6 is out!

   jcw· Thu Nov 05, 2015 11:52 am

   …cc.path}/bin/. Consider upgrading this core. Warning: platform.txt from core 'JeeLabs AVR Boards' contains deprecated tools.avrdude.cmd.path={runtime.ide.path}/hardware/tools/avr/bin/avrdude, automatically converted to tools.avrdude.cmd.path={path}/bin/avrdude…

7. IRlib on STM32?

   KaraWin· Mon May 01, 2017 10:10 pm

   Something is wrong in your board selection. You are in #if defined(ATMEL_AVR) case. I made the modification for #elif defined(BOARD_generic_stm32f103c) Please change all BOARD_generic_stm32f103c to your mapple mini definition or better, add an ifdef or elif ca…

8. Including binary libraries – experiment in teaching

   gbulmer· Thu Apr 13, 2017 2:02 am

   …be that cruel either, however introducing them to stm32 and limiting them to then use avr, also smacks of cruelty stephen

9. Is anyone interested in helping to make an Arduino Due which uses [edited:] a 100-pin STM32L471

   lkcl· Thu Sep 28, 2017 12:43 pm

   … existing Arduino Due! The F072 is a M0 chip with performance not much better than an AVR. Hardly a design for the future. aww i know that noooow i didn’t quite realise quite how stark the difference is between the STM32F072 range and the others that are avail…

10. KS0108 128×64 Graphic LCD

    RogerClark· Mon Oct 17, 2016 1:57 am

    …range its running slow, it should be almost as fast as a Teensy and a lot faster than AVR But at least its now working

11. LSE RTC calibration

    mrburnette· Tue Feb 20, 2018 1:07 am

    Interesting work. Reminds me of using the RC osc on Atmel AVR. But since the Blue Pill has a 32K clock crystal, why not use that? http://stm32duino.com/viewtopic.php?t=1335 Ray

12. Linux Journal

    mrburnette· Fri Dec 08, 2017 3:07 pm

    …nly reason in my mind that the STM32duino exists is because it had more SRAM than the AVR-based Mega and a lower price point and secondarily has better architecture implemented on that slice of silicon. Raspberry Pi Zero-W can be compared to the ESP8266 for ba…

13. MPR121 i2c touch keypad with Wire library

    szilvasyz· Sun Aug 13, 2017 12:04 pm

    …ction in WireBase. It seems those are handling the stop condition the same way as the AVR version of Wire lib: uint8 WireBase::endTransmission(bool stop) { uint8 retVal; if (tx_buf_overflow) { return EDATA; } retVal = process(stop);// Changed so that the retur…

14. MPU-6050 (I2C) Library

    RogerClark· Fri Jul 17, 2015 5:11 am

    … version non-standard version of i2dev, but perhaps its fixed now. I did some work on AVR using the lib about 9 months ago, but found that the normal floating point precision on the AVR was too low and using double on STM32 would be better, Also the more sampl…

15. Messaging between multiple Maple Mini clones

    Slammer· Thu Sep 08, 2016 1:00 am

    …to make all calculations by code and the second way is to use a lookup table. In 8051/AVR world the lookup table method is better and faster but requires some code memory more (512 bytes for tables), in ARM world the speed is not an issue and the computational…

16. New SdFat library (with and without DMA)

    zmemw16· Sat Oct 24, 2015 12:39 pm

    …ewSd* or add _STM as per Adafruit_GFX i can’t see many libraries being ported back to AVR, but if required as multi-platform we already test for _STM32F1_ etc. stephen

17. New wiki

    RogerClark· Sun May 08, 2016 7:23 am

    …perhaps trying all example sketches, and thats slightly problematic, as the often use AVR pin names e.g A0 which we don’t have ;-( That being said. Please feel free to make to make a start on a page that has the information you think is useful

18. No fix on u-blox neo 6m

    mrburnette· Fri Nov 04, 2016 12:52 pm

    zmemw16 wrote:same cpu e.g. both blue pill or blue pill v maple mini or maybe avr v stm32 e.g. 16MHz / 72MHz capacitor quality & quantity? srp

19. PID library

    jansun· Sat Jan 05, 2019 8:01 pm

    … part works. [mrburnette – Sat Jan 05, 2019 4:37 pm] – What is broken here is not the AVR library, but your expectation. You just need to jump into learning how libraries work and how to modify library code to match your expectations. This effort will make you…

20. PJON

    rajdarge· Tue Apr 26, 2016 11:36 pm

    …re is a line which describes the architecture supported by the library. architectures=avr,esp8266,sam,samd