Debug module for KR1816BE35. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Microcontrollers
Comments on the article
When debugging devices based on OEVM with external memory on the KR573RF2 chip and its analogues, a debug module will be useful, the diagram of which is shown in the figure. During the step-by-step execution of the program on the module indicator, you can observe the sequence of addresses of the commands being executed.
The module is a small board with an XP1 pin connector that plugs into the ROM board of the device being debugged. The ROM chip with the program is moved to the XS1 panel of the module.
(click to enlarge)
After the next step of the program, the address code of the next command is located on the pins of the BUS and P2.0-P2.3 ports of the OEVM. It enters the address inputs of the DD1-DD3 microcircuits of the debug module, to the outputs of which digital LED indicators HG1-HG21 are connected through limiting resistors R1-R3. Codes "firmware" microcircuits DD1-DD3, given in the table, provide an indication in hexadecimal form.
By supplementing the module with two more indicators with decoders connected to the ROM data bus, you can get information not only about the address, but also about the code recorded at this address. Instead of K155REZ microcircuits, it is permissible to use "seven-segment" 514IDZ decoders by connecting indicators to them according to a typical scheme. Other decoders of the 514 or K514 series can also be used, but in this case, non-standard characters will be displayed instead of hexadecimal digits AF.
Author: D. Ryzhov, Vladimir
See other articles Section Microcontrollers.
Read and write useful comments on this article.
<< Back
Latest news of science and technology, new electronics:
Machine for thinning flowers in gardens
02.05.2024
In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers.
... >>
Advanced Infrared Microscope
02.05.2024
Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>
Air trap for insects
01.05.2024
Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>
| Random news from the Archive Samsung Full Solid State Battery
14.03.2020
Research scientists from the Samsung Advanced Institute of Technology (SAIT) in London and the Samsung Research Institute of Japan (SRJ) have unveiled long-life solid-state batteries.
Solid-state batteries compare favorably with lithium-ion batteries, as they allow you to increase the amount of stored energy per unit mass. This allows you to create batteries with a higher capacity, using solid electrolytes, which are safer than liquid ones. But there is a problem: Lithium anodes can cause dendrites (needle-like crystals that can form on the anode of a battery during charging) to grow, resulting in reduced battery life and less safety.
To solve the problem, scientists first proposed using a composite layer of silver and carbon (Ag-C) as an anode. This allowed to increase the capacity, service life and overall safety of the prototype solid-state battery. In addition, the prototype turned out to be about 50% smaller in volume than a lithium-ion battery of the same capacity.
Such technologies will contribute to the further development of electric transport. As expected, the corresponding batteries will allow electric vehicles to travel up to 800 km without recharging, and the battery will have more than 1000 charge / discharge cycles.
|
Other interesting news:
▪ Humidity and temperature sensor STMicroelectronics HTS221
▪ Microsoft contact lenses measure blood sugar
▪ Combined under-screen sensor for bezel-less smartphones
▪ 793 Electric Mining Truck
▪ Wireless electricity
News feed of science and technology, new electronics
Interesting materials of the Free Technical Library:
▪ section of the site Personal transport: land, water, air. Article selection
▪ article Sail and ship. History of invention and production
▪ article What is skin? Detailed answer
▪ article Timekeeper. Job description
▪ article Thermal relay on a microcontroller with a digital temperature sensor. Encyclopedia of radio electronics and electrical engineering
▪ article Charger with SHI current regulation. Encyclopedia of radio electronics and electrical engineering
Leave your comment on this article:
All languages of this page
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua
2000-2024
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese