I am looking for a new oscilloscope and I am considering an Owon sds7102. However, with a little extra effort and a USB connection you can download a much. Your computer using free software such as the Python Scientific package. You cant go wrong with the hack, you will have a first class scope. Hacking the OWON SDS7102 Scope (Part 2). The bootloader would just continue and load the oscilloscope firmware. I finally gave up on the serial port and started looking for a JTAG port. By letting OpenOCD steal a bit of RAM and download some ARM code there it can run code on the CPU which is much faster than executing one instrution at.
It is something of a rite of passage for an electronics enthusiast, the acquisition of a first oscilloscope. In decades past that usually meant a relatively modest instrument, maybe a 20MHz bandwidth and dual trace if you were lucky. Sugar bytes unique v121 incl keygen. Higher spec devices were eye-wateringly expensive monsters, not for the Common People. We are fortunate that like most other areas of technology the world of test equipment has benefited in the last few years both from developments in digital technology and from the growth in Chinese manufacturing. If your first ‘scope is that second-hand 20MHz CRT you will probably secure it for pennies, and the first ‘scope you buy new will probably have a spec closer to those unattainable super-scopes of yesteryear. Gone is the CRT and timebase generator, in its place a TFT, system-on-chip, and super-fast A to D converter. [Christer Weinigel] has just such an entry-level modern digital ‘scope, an OWON SDS7102.
He comments that it’s got an impressive spec for its price, though the input is noisier than you’d expect on a more expensive device, and the software has one or two annoying bugs. Having owned it for a while, he’s now subjected it to a lengthy teardown and reverse engineer,. [Christer]’s interest lay mainly in the OWON’s digital section, it seems there is already a substantial community paying attention to its analog front end. He’s deduced how its internals are connected, ported Linux to its Samsung SoC in the scope, succeeded in getting its peripherals working, and set to work programming the Xilinx FPGA that’s responsible for signal processing. The series of posts is a fascinating read as a run through the process of reverse engineering, but he points out that it’s quite a lot of information. If you are just interested in how a cheap modern oscilloscope works, he says, he suggests reading. He also makes a plea for help, he’s no slouch on the ‘scope’s software but admits he’s a bit out of his depth on some aspects of the FPGA. If you’re an FPGA wizard with an interest in ‘scopes, he’d like to hear from you. This isn’t the first time we’ve featured ‘scope reverse engineering here at Hackaday, though it may be more in-depth than others.
In the past we’ve seen a laid bare, and an investigation of a. Posted in Tagged.
Last time I: the EM125, which is a cross between a digital voltmeter and an oscilloscope, and the Wave Rambler, which is a scope probe with a USB connector attached. Both of the devices cost about $100, and both have their plusses and minuses. This time, though, I wanted actually to look at some real-world signals. To make that easy, I grabbed yet another scope-like thing I had handy: an Labtool. This is an interesting board in its own right.
It is an LPC-Link programmer attached to an LPC ARM board that has several high-speed A/D channels. Medieval 2 total war spisok vseh yunitov. However, I’m not using any of that capability for now. The board also has a cheap ARM processor (an LPC812) on it that serves only to generate test signals.
The idea is you can use the Labtool in a classroom with no additional equipment. The Labtool’s demo CPU generates a lot of different signals, but with only one channel on the test scopes, it didn’t make sense to look at, for example, I2C data. So I stuck with two different test signals: a varying pulse width modulation signals and a serial UART transmitter.
Posted in, Tagged,,. Hi, I’m Al, and I’m an oscilloscope-holic. Just looking around my office, I can count six oscilloscope or oscilloscope-like devices. There are more in my garage. If you count the number of scopes I’ve owned (starting with an old RCA scope with a round tube and a single vertical scale), it would be embarrassing. On the other hand, if you are trying to corral electrons into doing useful things, a scope is a necessity.