Currently have a decent interrupt-driven RS/232 driver with support for hardware flow control running at 9600 bps. Higher baud rates are possible but I have not yet tested for stability. I also implemented some helper routines to print and get strings, hexadecimal and decimal numbers. Kernel routines exist to detect available RAM/ROM and installed devices. It allowed me to develop this (screenshot of terminal program
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connecting to actual hardware via serial): Most shell functions presented in the screenshot are still only stubs (or very early drafts) but it gives an idea of what I want to achieve. I want the monitor program to be able to: That seems to be enough to start with. I don`t want to over-engineer the Monitor/OS as it is not my ultimate goal. I want to start working on a C port as soon as possible to be able to port some serious software. Assembly programming is fun and mind stimulating, but awfully slow. A colleague at work called me one day and offered to borrow this little gadget that should help me to dramatically speed up the development process of Monitor/OS kernel. Last time I reported that it is ineffective and somewhat disconcerting to burn kernel ROM whenever I want to test my new (oftentimes faulty) code. It is an EPROM emulator which you connect by a ribbon cable to a socket where you normally have a ROM chip. It simulates the EPROM by using internal SRAM which is easily programmed by a standard parallel cable when the device is connected to the recipient and the PC. It does not require external power supply (it draws power from the emulated chip`s host). For a PC this device is essentially a printer, so programming its SRAM is as easy as copying a binary image to /dev/lp0 in linux. It is really simple and should give my software development a nice boost. No more ROM chip pulling, programming, or continuous...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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