Javelin microprocessor
-
http://www.parallax.com/javelin[^] :omg::omg: This is, quite seriously, one of the coolest things I have ever seen. I've been boning up on my old electromagnetics course books in preparation for building some stuff controlled by a microprocessor. (I'm planning a system that monitors temperature in an enclosed area and turns on an array of fans when things get too hot. And of course a nice graphic VFD for display) I was shuffling through different microcontroller specs & assembly languages trying to get comfortable - and then I ran into this Javelin thing. I've ordered my demo board, 16 DS1620 digital thermometer ICs, and the circuitry necessary to build a relay for a bank of 3inch 12V fans. Once I get that down pat, I'll start cracking on the display controller. Who says nerds don't have orgies? ;P -- Russell Morris "So, broccoli, mother says you're good for me... but I'm afraid I'm no good for you!" - Stewy
-
http://www.parallax.com/javelin[^] :omg::omg: This is, quite seriously, one of the coolest things I have ever seen. I've been boning up on my old electromagnetics course books in preparation for building some stuff controlled by a microprocessor. (I'm planning a system that monitors temperature in an enclosed area and turns on an array of fans when things get too hot. And of course a nice graphic VFD for display) I was shuffling through different microcontroller specs & assembly languages trying to get comfortable - and then I ran into this Javelin thing. I've ordered my demo board, 16 DS1620 digital thermometer ICs, and the circuitry necessary to build a relay for a bank of 3inch 12V fans. Once I get that down pat, I'll start cracking on the display controller. Who says nerds don't have orgies? ;P -- Russell Morris "So, broccoli, mother says you're good for me... but I'm afraid I'm no good for you!" - Stewy
What a cute microprocessor! How small a subset of Java is really implemented? And can you extend the RAM/ROM address space beyond the 32K included? My favorite so far is the Rabbit2000 micro, primarily because the dev kit costs < $100, and includes an Ethernet controller. "Your village called -
They're missing their idiot." -
http://www.parallax.com/javelin[^] :omg::omg: This is, quite seriously, one of the coolest things I have ever seen. I've been boning up on my old electromagnetics course books in preparation for building some stuff controlled by a microprocessor. (I'm planning a system that monitors temperature in an enclosed area and turns on an array of fans when things get too hot. And of course a nice graphic VFD for display) I was shuffling through different microcontroller specs & assembly languages trying to get comfortable - and then I ran into this Javelin thing. I've ordered my demo board, 16 DS1620 digital thermometer ICs, and the circuitry necessary to build a relay for a bank of 3inch 12V fans. Once I get that down pat, I'll start cracking on the display controller. Who says nerds don't have orgies? ;P -- Russell Morris "So, broccoli, mother says you're good for me... but I'm afraid I'm no good for you!" - Stewy
-
What a cute microprocessor! How small a subset of Java is really implemented? And can you extend the RAM/ROM address space beyond the 32K included? My favorite so far is the Rabbit2000 micro, primarily because the dev kit costs < $100, and includes an Ethernet controller. "Your village called -
They're missing their idiot."Looks like the majority of Java syntax is supported (their compiler seems to be based on IBM Research's jikes compiler). No interfaces, however. As for the library itself, it's an extremely sparse implementation. I would assume that much of the stuff they didn't implement didn't make any sense given the capabilities of the microprocessor itself (No threads, no console, no native floating-point type, etc...). As for the library itself, the code for the majority of it (the stuff that isn't stubbed for native-interface) is downloaded along with their free IDE. Pretty neat stuff, and its actively contributed to by outside coders. I'll probably end up contributing an extension of their DS1620 driver to control an array of them connected on an I2C bus. -- Russell Morris "So, broccoli, mother says you're good for me... but I'm afraid I'm no good for you!" - Stewy
-
http://www.parallax.com/javelin[^] :omg::omg: This is, quite seriously, one of the coolest things I have ever seen. I've been boning up on my old electromagnetics course books in preparation for building some stuff controlled by a microprocessor. (I'm planning a system that monitors temperature in an enclosed area and turns on an array of fans when things get too hot. And of course a nice graphic VFD for display) I was shuffling through different microcontroller specs & assembly languages trying to get comfortable - and then I ran into this Javelin thing. I've ordered my demo board, 16 DS1620 digital thermometer ICs, and the circuitry necessary to build a relay for a bank of 3inch 12V fans. Once I get that down pat, I'll start cracking on the display controller. Who says nerds don't have orgies? ;P -- Russell Morris "So, broccoli, mother says you're good for me... but I'm afraid I'm no good for you!" - Stewy
Russell Morris wrote: (I'm planning a system that monitors temperature in an enclosed area and turns on an array of fans when things get too hot. And of course a nice graphic VFD for display) Hey! So am I! A greenhouse by any chance? Unfortunately I got the idea about 2 years ago and we since sold our house and have gone from one leased house to another with too much work in between so I haven't had a chance to get back to the PIC stuff, but I wanted to build a decent automated greenhouse as a non-programming fun project. A greenhouse is a pretty complex system when you factor in controlling humidity, temp, airflow etc. My theory is to take cheap junkyard parts and build a system controlled with a pic microcontroller. I guess the longer I take to get around to it, the higher the quality of the junkyard parts!:)
Everybody knows that the bird is the word.
-
Russell Morris wrote: (I'm planning a system that monitors temperature in an enclosed area and turns on an array of fans when things get too hot. And of course a nice graphic VFD for display) Hey! So am I! A greenhouse by any chance? Unfortunately I got the idea about 2 years ago and we since sold our house and have gone from one leased house to another with too much work in between so I haven't had a chance to get back to the PIC stuff, but I wanted to build a decent automated greenhouse as a non-programming fun project. A greenhouse is a pretty complex system when you factor in controlling humidity, temp, airflow etc. My theory is to take cheap junkyard parts and build a system controlled with a pic microcontroller. I guess the longer I take to get around to it, the higher the quality of the junkyard parts!:)
Everybody knows that the bird is the word.
John Cardinal wrote: Hey! So am I! A greenhouse by any chance? No - I need to keep my amps cool :) I'm buying a sports car soon (hopefully) and will have no space to spare for an external amp in back (plus I want the amp completely hidden). Because of this, I need to build an enclosure for them that is as small as possible. They get really hot during use, so I need to make sure that they have lots of cool air blowing across their heatsinks when they heat up beyond a certain point. I'm going to embed an array of digital thermometer ICs under the plate on which the amps are mounted, and turn on an array of 8 to 10 3" fans when the average temperature of the enclosure is above a certain upper limit. That's the plan, anyway :) -- Russell Morris "So, broccoli, mother says you're good for me... but I'm afraid I'm no good for you!" - Stewy
-
What a cute microprocessor! How small a subset of Java is really implemented? And can you extend the RAM/ROM address space beyond the 32K included? My favorite so far is the Rabbit2000 micro, primarily because the dev kit costs < $100, and includes an Ethernet controller. "Your village called -
They're missing their idiot."We added a JackRabbit board to the last robot the club built for the FIRST competions. It was used only to count teeth on the two drive sprockets so we could do better navigation than the BASIC Stamp based robot controller allowed us to do. It worked perfectly. And was programmable in C. Forced me to remember how much better I like C++. :rolleyes: At any given instant there are considerably more assholes than mouths in the universe.
-
We added a JackRabbit board to the last robot the club built for the FIRST competions. It was used only to count teeth on the two drive sprockets so we could do better navigation than the BASIC Stamp based robot controller allowed us to do. It worked perfectly. And was programmable in C. Forced me to remember how much better I like C++. :rolleyes: At any given instant there are considerably more assholes than mouths in the universe.
This week's Embedded Systems Programming magazine has an article that attempts to explain the advantages of using C++ rather than C. It's quite humorous in some ways...:-D "Your village called -
They're missing their idiot."