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Anything related to printer controllers not being Duet, RAMPS or Sanguinololu: microprocessors, motor and heater driver circuitry, gEDA/KiCAD issues, soldering tips, etc.
Re: Generation 7 Electronics Development - 13 years ago
The 2313 costs almost the same as the 45 but with extra pins and a serial port if direct connection to the serial port at 38400 was desirable. A little bigger, but with those extra pins you were looking for.by Murray - Next Wave Electronics Working Group
Re: Taking Gen 8 wishlist - 13 years ago
4K RAM! Ive not looked at the code but that sounds like a lot more than needed. With a bit of effort I'm sure we can fit it in.by Murray - Next Wave Electronics Working Group
Re: Taking Gen 8 wishlist - 13 years ago
Dip samples are here. Not a skinny dip like the ATmega8 rather a wide DIP like the old EPROMS. Now to set up the toolchain. I will put together a tutorial as I go.by Murray - Next Wave Electronics Working Group
Re: Taking Gen 8 wishlist - 13 years ago
Schematic is in the making. There is a lot of work still to be done on the ARM port. For anyone just wanting to build something and not having to mod and hack, I'd recommend building a Gen 7. Traumflug, hephaestus perhaps we should work together. My aim is to build a builder friendly (ie DIP) ARM system that scales up. I am happy to use double sided boards, because I don't want to make my own aby Murray - Next Wave Electronics Working Group
Re: Taking Gen 8 wishlist - 13 years ago
The PCB so far. Just to give an idea of the form factor.by Murray - Next Wave Electronics Working Group
Taking Gen 8 wishlist - 13 years ago
Hi everyone. Some background. I am an EE with about 15 years professional experience. I am busy putting together an ARM all DIP system. If the community wants I will release it as Gen8. Some features so far. 1x Low cost DIP LPC1114FN28/102 AMR processor. 2x low cost high speed high current PWM outputs. 6x TB6560AHQ 3A stepper drivers. available on ebay for US3 each. USB via 8 pin DIP AVR. All (sby Murray - Next Wave Electronics Working Group
Re: protection from patents. - 13 years ago
Bobc. That's scary. But to show they invented it independently and patented it first is surely intended for when multiple parties are trying to patent the same item. ie Multiple secret labs working on the same thing. Were not trying to patent, if the idea is public domain, then no one should be able to patent it, or else I'm off to go patent the wheel, and the nail and the button, and screws, anby Murray - General
Re: protection from patents. - 13 years ago
Perhaps we need a idea protection against patents, folder in the forum root, so that all ideas can just be logged there. If there are duplicates, so what, the purpose is just to leave a paper trail as ammunition against patent trolls. The makerbot conveyer belt comes to mind. Further discussion and development can happen in the appropriate sub forum but we need to make it as easy as possible forby Murray - General
protection from patents. - 13 years ago
This is an untested design but I am posting it here to protect against some greedy nut patenting it. A standard reprap with a standard Y and standard Z axis. More than one X carriage allows more than one object to be printed at once. If the 2 objects are the same, movements will be identical, and the printer only needs to initially offset the second x carriage by an arbitrary (as long as it is mby Murray - General
Re: ARM DIP package at US1,26 to the rescue - 13 years ago
The ADC is multiplexed just like the ADC on the AVR. Scanning the ACD inputs is the firmware's job. The PWMs are implemented in any of the 4 timer / counters just like in the AVR. PWM is achieved by setting the timer counter match compare registers to toggle on match. On the 28pin dip package there are 12 match outputs. In embedded programming a word scan is not enough to identify the capabilitby Murray - Next Wave Electronics Working Group
Re: ARM DIP package at US1,26 to the rescue - 13 years ago
6x 10 bit ADC's 4x pwm For pin expansion I'd use the spi on a 74hc595, cheap, available and infinitely expandable. No USB unfortunately, only a serial port. We can use something like this to allow USB with cheap DIP parts, although it is one more microcontroller that needs to be programmed, albeit only once.by Murray - Next Wave Electronics Working Group
ARM DIP package at US1,26 to the rescue - 13 years ago
The LPC1114FN28/102 is now available for US1,26 in one off qttys. It is a skinny DIP28 with 32k flash and 4k sram. 50MHz operational freq. Here is a short piece, and the links lead all the way to the embedded hello world : the flashing LED. The only question : is 32k on an ARM enough?by Murray - Next Wave Electronics Working Group
Re: A $40 32 bit ARM PCB with SD card and colour touchscreen included! - 14 years ago
Report Back. The unit is indeed the one features in this youtube video . The unit comes loaded with the firmware as shown in the video. Firmware is compiled using a keil compiler (Windows, and I am assuming its a limited version) A graphical library is provided but i am not sure about its license. I suspect we will have to write all code from scratch using GCC so that it is truly open source.by Murray - Next Wave Electronics Working Group
Re: A $40 32 bit ARM PCB with SD card and colour touchscreen included! - 14 years ago
Picking mine up at the post office tomorrow. The product seems to be available from a number of sites. Here is a youtube vid that appears to be the same board. it appears that the manufacturer is www.powermcu.com here are some other ebay postings that appear to be for the same board. Here are some specs form the ebay site STM32F103RBT6(development board ) with 2.8" TFT-module On-boaby Murray - Next Wave Electronics Working Group
A $40 32 bit ARM PCB with SD card and colour touchscreen included! - 14 years ago
This looks like a winner US40$ buys a compact PCB module with a 32bit ARM cortex m3 processor (100mips). 128k flash, 20k ram High resolution 2,8 inch full color touch screen. SD card slot. Dataflash suport. USB B plus. RS232 DB9. Standard spacing header type expansion connector for stepper drivers etc. Jtag debugging Non volatile serial port based boot loader. Murrayby Murray - Next Wave Electronics Working Group
32 bit future heart found. - 14 years ago
I found new the heart of my next system US40$ buys a compact PCB module with a 32bit ARM cortex m3 processor (100mips). 128k flash, 20k ram High resolution 2,8 inch full color touch screen. SD card slot. Dataflash suport. USB B plus. RS232 DB9. Expansion connector for stepper drivers etc. Jtag debugging Non volatile serial port based boot loader. The future is here. Murrayby Murray - General
Re: Burning a boot loader to a virgin chip (Sanguino) - 16 years ago
And here's one you can build for about 1US$. The programmer requires a printer port and doesn't protect the port against misuse. but I have been using this design for about 8 years with hundreds if not thousands of processors. The parts are 1 db25 plug, 4 resistors and a capacitor.by Murray - Controllers
Re: Adruino vs GCC - 17 years ago
You dont even need eclipse. I use to do all my development using programmers notepad. Yes Eclipse runs under windows linux and mac. Basically GCC is command line driven, eclipse is an IDE front end. It calls the programmer and the debugger too, so you can use it if you like. It works for me.by Murray - RepRap Host
Adruino vs GCC - 17 years ago
I was wondering if anyone has a GCC port of the Adruino firmware. Or am interested in joining a porting group. I'd like to run my AVR on GCC because it is a wider accepted standard, and there are excellent tools like eclipse available for development. Also I use a lot of Atmel ARM CPUS and it makes porting it to a variety of CPUs easier. ARM, and AVR32 comes to mind. Currently I am developing anby Murray - RepRap Host