…le and also the 15 3.5″ non floppies to install slackware and i think a 0.98 kernel, 386sx16 over clocked to 20, 2mb of sip, hercules graphics card. £1317 istr, someone at the time crowed abou…
…built wheels, trued them twice in that week and not needed to since.) i started with 6502 and it took me six months to write my first program in hex, actually it took me 5.95 months to gras…
…. As far as experience goes: I taught myself machine code, and then MacroAssembly on 6502 when I was 13, I learn a little bit of electronics (transistors, opamps, diodes, etc as a 13 year o…
…times ahull Fri Jan 01, 2016 4:19 pm I learned to program on one of those, in Basic, 6502 assembler and Pascal (which was clumsy in the extreme on the PET). I wish I had hung on to one of t…
…ure there is space in that flash for a full PETSCII character set. We already have a 6502 Commodore emulator. -> viewtopic.php?f=19&t=433 Now you can go the whole hog and emulate all the ex…
… not worth to try to ILI9341 driver code. UTFT library is configured for 8080 or for 6800 ? ag123 Sat May 06, 2017 4:57 pm there is a thread about some 8-bit tft here perhaps there could be …
… 12, 2019 8:12 pm I have an really old WWVB receiver module, I was going to use on a 68HC11 to drive some slave clocks I have. It sits in a box somewhere. As I recall it has a simple RS232 in…
…mplex, comprehensive) standards: PC-104 (the original one… which is basically an “AT 80286 computer”, but the absolute best one i’ve seen is COM-Express. now that’s a really good standard: a…
…olled via Serial. The only way to write code for the CC254x modules is using the IAR 8051 compiler, which is $$$$$$ ( because TI only release their BLE lib binaries in IAR format) Actually,…
…mand language, interpreter written in macro-11 through any of the sub-systems(8031/2, 8051 /52), adc, dac, controlled power supplies, relay card types and STT’s, interfaces to ieee equipment …
…t recently started to play with the 32-bit platforms. Mostly what I did was on 8-bit MCS51 and its derivatives. I can do C very well, but never done anything like mixing C and C++, or call C…
…2x20 Pin 2.54mm double row pin header interface for connecting MCU. Can be driven by 8051 / AVR / PIC and other low power controllers. Display content: 240RGB x 320 Dots. Resolution: 240 x …
…rds ;-)Wink I have quite a few different programmers, e.g. JTAG clone, as well as an 8051 programmer (Texas Instruments) and of course stuff for AVR, but none of them e.g. the JTAG seem to …
… is 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 byte…
…s.. The Sdcard is not a ramdisk, it lives its own life. When the Arm (or accelerated 8051 ) inside the Sdcard decides to do some housekeeping, your write time will be longer. stevestrong Wed…
…r side, the most used MPUs in last 25 years of my professional life, are ATmega8 and 89C52 … In these machines, even the Print class is a luxury… you have to live with basic itoa and ltoa…. A…
…TW, I have also a Netduino 1 Plus sitting there too, but it is not an STM32, it is a AT91SAM7X … I’ve started searches, and I think some people got FreeRTOS running on them) madias Thu May 14, 2…
…benefit to moving a chunk of my blocks to a sub-system, whether it’s to an attiny85, atmega1284 or a stm32 chip. it’s just a block. i once had 2yrs commissioning an ate system, freedom to go anyw…
… how best to proceed. As for SdFatLib, I have some experience in porting that to the mighty-1284p project, so I know my way around reasonably well, and could have a look at porting for the simple n…
…ys! I recently designed a custom STM32 board for an RS485 aplication. I was using an Atmega 168 before and I was having trouble with speed, so I decided it was time to move. The board is simply a…
… board? Consider that on ebay you can buy chinese Due clones (with original SAM3X8E, MEGA16U2 , etc) for 13$ each which grants you real full compatibility if you really need a Due board. david.p…
…e/project using HID RAW for high speed data transfer protocol that is implemented on ATMEGA16U2 using LUFA library. I’ll try porting it to STM32 now thanks to this new library that supports HID R…
… the “Black” F407 boards is around $12 from AliExpress. yyehhh…. you see… an Arduino ATMEGA 2560 is around half that from the Huaqiang Road markets in nearby Shenzhen (i’m staying in Taiwan at the…
… try. Overall control (like GPS, Supply, external communications, etc) is done by an Atmega 2560 . RogerClark Thu Feb 23, 2017 12:58 am Interesting… But why are you bit banging the SPI ?? Edit. Loo…
…al port without resetting, the 16u2 send a pulse of about 4 us to the RX port of the Atmega328 . This pulse can be interpreted as a characher that depends on baudrate A 256000 you get a zero At 1…
…you own an Arduino UNO you can hijack it as serial converter. (Just must get the DIP- ATMega328 out first then you can use “0” as RX and “1” as TX) ahull Fri Oct 02, 2015 10:21 am To clarify, we …
… will be on interrupt pin and wake up stm. After that stm go to sleep again. Arduino ATmega328 has in datasheet: Power Consumption at 1MHz, 1.8V, 25°C ̶ Active Mode: 0.2mA ̶ Power-down Mode: 0.1…
…in my code and that was why the display remained blank. I tested the display with an atmega328 running at 5V with no problems. Has anyone else had any success with this type of display? If so, h…
…aking out the SoftSerial stuff, and the STM code is around 2.4 times the size of the ATMEGA328 code, so even with the 64K Flash on the STM I would have less room for adding extra code, assuming …
… an application that sends data through the internet using GET PHP before I used the ATmega328 , but I miguei for STM32F103 for reasons of memory and better performance. When I used the ATmega32…
…, yes seriously! But not flippantly. I gained experience with Arduino projects using ATMega328 and ~32U4 processors first and then went on to the STM32F103 – in both cases first as pre-assembled…
…alled and see if I can get it to talk with my 2000 Saab 9-3 bus. I currently have an ATMEGA328P -AU talking via a MCP2515 and a SN65HVD231, so I think I can get things to work with only the 231 ch…
…MPR121 register-read test scketches on three different boards: Arduino Pro Mini with ATmega328P (powered from 3.3V), Arduino DUE with ATSAM3X8E and STM32 blue pill with STM32F103C8T6. The results…
…ting the analogue signals from it. I’ve done that and got the results I wanted using ATMega 328p and very modest analogue signal processing. However I fancied having a go at digital signal process…
…rogramming unfortunatelly Sad madias Thu Mar 01, 2018 4:31 pm The “classic” Arduino ( ATmega 328p ) has no USB physicially on chip, so you cannot use this code with this devices. So you’ll need at l…
…aughing florisla Fri Apr 27, 2018 9:45 am Most programmable keyboards are running on ATmega32u4 (SparkFun Pro Micro, Teensy/Teensy++ 2.0) or NXP Kinetis (Teensy 3.x). The Pro Micro is very cheap …
…h a long time ago with the AVR-specific V-USB implementation. I also played with the ATmega32U4 “micro.” Ray arpruss Wed Dec 13, 2017 4:38 pm What I do need help with is figuring out how to make …
Spark Logic archive Wireless Lux meter with STM32 rolo644u Sun Aug 14, 2016 1:52 pm Working on a lux meter to connect with Domoticz Home Automation. It’s a hy…
Spark Logic archive Some pins not usable when using ST-Link ? rolo644u Thu May 26, 2016 4:59 pm I’m experiencing a strange effect when using ST-LINK as upload tool. Some …
…’s very true! dannyf Mon Oct 09, 2017 11:58 pm I implemented the same concept on the ATmega8 /8L “ghetto chrono”: … er/ATmega8 it worked out nicely. vitor_boss Mon Feb 19, 2018 9:15 pm I made a…
…rom the other side, the most used MPUs in last 25 years of my professional life, are ATmega8 and 89C52… In these machines, even the Print class is a luxury… you have to live with basic itoa an…
…s and really really low cost. $1.66 in 10k volumes as opposed to (in the case of the ATSAM3X8E ) more money than a quad-core 1.5ghz 64-bit ARM Cortex A53 processor can be bought for. i’m aware th…
…erent boards: Arduino Pro Mini with ATmega328P (powered from 3.3V), Arduino DUE with ATSAM3X8E and STM32 blue pill with STM32F103C8T6. The results are depressing: only the Pro Mini worked well w…
…ame library as the link will lead to the elmChan site. This code will even run on an AVRtiny45 top play *.WAV files. (Had to hack some of it to do so.) Runs quite well on a AVRTiny85 with room t…
… data-logging, too: … ng-usb-hid … sing-v-usb … viewer-usb Or, a clone of Adafruit’s tiny85 Trinket … ny85-clone Or, a tiny85 DigiSpark … e-exorcism From the old arduino.cc forum, some now an…
…iple use) benefit to moving a chunk of my blocks to a sub-system, whether it’s to an attiny85 , atmega1284 or a stm32 chip. it’s just a block. i once had 2yrs commissioning an ate system, freedo…
… clock cycles, but many years ago, I developed an independent uC approach based on a tiny85 . I was doing some real time instrument displays for a friend that owns an Experimental plane and I …
…re-sets that the user cannot affect. here is an example of my PID implementation: … - attiny85 / the particular PID routines it used are application and instance independent, meaning that the sam…
… the main routine by adding/subtracting whole seconds at some long integer count. … - attiny85 / Ray ahull Fri Oct 23, 2015 8:43 pm j-zero wrote:Hello, thanks for the answers. I have connected tw…
…tiny45 top play *.WAV files. (Had to hack some of it to do so.) Runs quite well on a AVRTiny85 with room to spare. I did a project which was a toy piano where we made 333 units using a AVRtiny85…
…ble FATFS I have been using this for years on AVR, There is a version that runs on a Tiny88 ! I suspect that there are many Arduino libs that include FATFS as well. FATFS is also the Included …
…g to spec.). zmemw16 Mon Apr 03, 2017 9:00 pm if you use a program that functions in AVR Arduino and then also in STM32 Arduino, with appropriate library changes, that would allow the intr…
…erhaps 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 …
…the Arduino IDE is going to get debugger support any time in the near future, as for AVR Arduino now recommends the use of Atmel Studio ( aka AVR Studio) if you want debugger support, and …
…ould expect that most people who are getting started with an stm32 have already used AVR Arduinos, and so are likely to have one lying around and usable for a USB-uart bridge (by grounding…
… to install the libraries properly. Can anyone help? I’ve done a little bit of 8-bit AVR programming in Arduino before, and some python and other interpreted languages, but I’m lost when i…
…: It has been years since I have done anything with HID, so long ago it was an 8-bit AVR … But, as I remember, it all distills down to keycode combinations. Nutsy Sun Mar 03, 2019 12:46 am …
… of the Arduino Due (like I2S, SPI, DMA…) over years and only converted the standard AVR things into it. This was the point leaflabs started with own libraries. I don’t see a problem acces…
…m not sure what I2C speed the chose I’m not sure why Wi6Labs chose 1Mhz SPI when the AVR default is DIV_4 of 16Mhz = 4Mhz. I think it should probably be defaulted to the same as AVR for co…
…processes are anti-Arduino, conceptually. For someone coming over to STM32duino from AVR , it is paradigm quicksand because not only are we STM32_centric, we may even be writing code to a s…
…ay you can’t , no need to offend me.I’m not a kid.I have a bigger arduino project in avr and I want to port it in STM32,I don’t want to use make file with STM32 standard libraries and a wr…
…i Apr 15, 2016 12:21 am And for those that saying that STM32 wastes more memory than AVR , the same function in Uno needs 0x40C+0x2A = 1078 bytes mrburnette Fri Apr 15, 2016 2:31 pm mrburne…
…o port it. Another question I have is how I set the clock on the microcontroller (on AVR devices you use the memory fuses)? I’m using a 16Mhz crystal to reach the 72Mhz. If you want, I can…
…of 72MHz? Can I use 8MHz crystal an reduce frequency in software like fuses on Atmel AVR ? Is there any minimal frequency? zoomx Thu Jun 09, 2016 7:27 am I am not sure but I read that a sho…
…vendors leaves quite a bit to ask for imho). I saw there was an Adafruit library for AVR which had support for SPI and 8bit parallell for ILI9341, but i’m not yet comfortable in the low le…
…o I can have a look on it! (at the earliest on Monday) Edit: As I can remember, some AVR code I used, was too fast on ARM for the ST7920 chipset. So maybe you can test your code with some …
…tability, then power the GPS from the Maple but connect the Serial data lines to the AVR ( and also connect their GND together) Also try holding the Maple mini in reset in another test in …
…e.g. Arduino, Teensy, Arduino_STM32), followed by the architecture subfolder(s) (eg. AVR , ARM, STM32F1 etc.), and then boards.txt under each architecture sub-directory. Anything else in th…
…a pain to use, as they are controlled via Serial. The only way to write code for the CC254x modules is using the IAR 8051 compiler, which is $$$$$$ ( because TI only release their BLE lib bin…
…accepting a string as a parameter. Thanks @Ivan-Perez * Scheduler: Added support for cortex-M0 . Thanks @PeterVH [core] * Added new PluggableUSB and HID support. This change introduces a more pow…
…rmware did not recognise the device as a nRF51 and fell back to treating it as a ARM Cortex-M0 The problem with this, is that it wasnt possible to erase the whole flash or even to flash any code…
…se boards hover around $4 i think and is possibly slower than esp32 as nrf51822 is a cortex-m0 if i remember correct mrburnette Fri Jan 19, 2018 3:40 pm Readers sometimes forget that WiFi can be…
…q15, q31) and single precision floating-point (32-bit). The library is available for Cortex-M0 , Cortex-M3, and Cortex-M4. The Cortex-M4 implementation is optimized for the SIMD instruction set. …
…I was too lazy to check the spec of the analog pins. He is using an STM32F091RC, the cortex-m0 stuff with the STM Core. ahull Sun Jun 25, 2017 2:38 pm [Rick Kimball – Sun Jun 25, 2017 2:28 pm] –…
…:21 pm Seems that now that the Arduino Zero is out openocd is in : ) The Zero uses a cortex-m0 +. The programming plug on the Zero .. The full discussion was unavailable in the source capture.
…:21 pm Seems that now that the Arduino Zero is out openocd is in : ) The Zero uses a cortex-m0+ . The programming plug on the Zero .. The full discussion was unavailable in the source capture.
…t into the board which is a STM32F103ZET6 Minimum System Development Board ARM STM32 Cortex-m3 M75 from … EBIDX%3AIT i2c scanner(from examples) shows this Scanning… I2C device found at address 0…
…luded the following items in package 1 of this shipment: The Definitive Guide to ARM Cortex-M3 and Cortex-M4 Processors i’m not sure the price on the invoice was the same as on the product page,…
…get this error arm-none-eabi-g++: error: unrecognized command line option '-CC -mcpu= cortex-m3 ' RogerClark Sun May 15, 2016 6:25 am Fixed it @vassilis do a pull from my repo to get these fixes T…
…ace that I can find them online? Like this one below for the STM32F103C8T6 ARM STM32 Cortex-M3 Image p.s. Just after I posted I was thinking.. Are there pages on this forum that can be used as P…
… Go to Tools -> Board -> Boards Manager and click on Arduino SAM Boards (32-bits ARM Cortex-M3 ) 9. Cick on Install. 10. Wait some time until the package is downloaded and installed. 11. Restart …
…much better M3 and M4 chips If you want a Due replacement, you would be looking at a Cortex-M3 or M4 chip with similar number of pins to the elderly SAM3X M3 chip that is used in the Due. The ST…
…er. Install the “Arduino SAM Boards” package (This installs compiler support for ARM Cortex-M3 ). There is no need to define any url with json file. It will take a while. Close arduino IDE. Downl…
…Could it be that the PIg-O-Scope has gone commercial? Amazon here. This kit uses ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4-inch color TFT Pig-O-Scope.jpg Pig-O-Scope.jpg (153.69 …
…nt and better fit with stm32 controllers as smoothieware is after all based on NXP’s Cortex-M3 LPC1769 the photos could perhaps be uploaded and linked from rsc Fri Sep 29, 2017 7:03 pm Yes, I st…
…which doesn’t compile Sad FFTCM3.S /* Complex 16 bit Radix 4 FFT and Inverse FFT for Cortex-M3 version 1.0 -------------------------------------------------------------------------- (c) 2008 Iva…
…it is done. The target chip is the stm32f100rbt6, a lower price point version of the cortex-m3 . It doesn’t have much going for it though. It only has 8k of RAM and runs at 24MHz max, although I …
…owing items in package 1 of this shipment: The Definitive Guide to ARM Cortex-M3 and Cortex-M4 Processors i’m not sure the price on the invoice was the same as on the product page, maybe £5 or £…
… 2016 9:31 pm Nucleo-L476 is a STM32 board, based on STM32L476RG (low power version, Cortex-M4 ) RogerClark Mon Dec 12, 2016 9:49 pm aro_72 wrote:Nucleo-L476 is a STM32 board, based on STM32L476R…
… the Due form factor) e.g. … 4de7935aae Mini-version-STM32F407VET6-development-board- Cortex-M4 -STM32-minimum-system-board.jpg Mini-version-STM32F407VET6-development-board-Cortex-M4-STM32-minimum…
…g (102.78 KiB) Viewed 346 times stevestrong Thu Jan 25, 2018 3:11 pm F103 Nucleo 64? Cortex-M4 ? mrburnette Thu Jan 25, 2018 4:17 pm M4 should be M3 (but I had to look 2 or 3 times) Laughing So, …
…sion floating-point (32-bit). The library is available for Cortex-M0, Cortex-M3, and Cortex-M4 . The Cortex-M4 implementation is optimized for the SIMD instruction set. You need to apply q15 fft/…
… codes Laughing i think we may have better luck with stm32f4 as on top of it being a cortex-m4 first of all the m4 has 2x hardware fpu in the engine and it has that ART accelerator that ST bragg…
