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Eeprom Programmer

EEPROM is one of the most widely used non-volatile memories on the market. Using EEPROM to pay attention to design details can avoid problems such as incorrect read and write timing, resulting in poor EEPROM programmer compatibility, abnormal chip power-on, and chip damage. Product reliability.

Serial EEPROM with easy-to-use, low-cost features is a non-volatile memory with a very long history. Due to its programmable features, coupled with its availability at a very low cost, EEPROM is now visible in almost every electronic product.

According to a statistic, there are about 5 billion units of serial EEPROM production worldwide each year, and the shipments are quite amazing. It is one of the most commonly used non-volatile memories in the industry. At present, serial EEPROM devices have been widely used in various electronic products due to their ease of use.

However, the EEPROM device itself also has many differences. According to the characteristics of different capacity, interface protocol, voltage and temperature range, the application fields are also different. In various applications from automotive to medical to consumer electronics, the EEPROM devices used are also quite different.

For most design engineers, the use of EEPROM in the design is necessary and basic, but to respond to the increasingly higher performance requirements of various electronic products, related devices have also created some must Note the place. This article mainly puts forward some design suggestions for the use of serial EEPROM devices to provide reference for related design engineers.

Next, we used the PC parallel port to make an EEPROM programmer. Although it is simpler, it is also very useful. Please download related files for circuits and programs. To briefly talk about the main points, J1 is connected to the PC parallel port, and PIN2 and PIN3 are the SCL and SDA output pins. Because the output current of the parallel port is very small, it is necessary to add a triode driver and use the PNP tube. In the same phase, due to the independent registers used for the input and output of the parallel port, an additional SDA input is required, and the SCL does not need to be input, because it is basically unnecessary to read the SCL, and the SDA directly receives the parallel port PIN13 pin from the output of the transistor.

The software part is written in VC ++ 6.0, using the WINIO static library file, and WINIO.H, etc. This is a commonly used parallel port programming method, and there is nothing special. The interface uses a single-document interface, drawing on The VIEW class written by netizens can edit the binary file, and then write it into the chip, and it can be saved as a BIN file after reading the data. This may be useful. In addition, you can view the check code (binary sum) of the file, which is also used by many programmers. It can read and write chips from 24C01 to 24C512. The bus speed is set to 100khz, which is relatively fast.

We used the PC parallel port to make an EEPROM programmer. Although it is simpler, it is also very useful. Please download related files for circuits and programs. To briefly talk about the main points, J1 is connected to the PC parallel port, and PIN2 and PIN3 are the SCL and SDA output pins. Because the output current of the parallel port is very small, it is necessary to add a triode driver and use the PNP tube. In the same phase, due to the independent registers used for the input and output of the parallel port, an additional SDA input is required, and the SCL does not need to be input, because it is unnecessary to read the SCL, and the SDA directly receives the parallel port PIN13 pin from the output of the transistor.

The software part is written in VC ++ 6.0, using the WINIO static library file, and WINIO.H, etc. This is a commonly used parallel port programming method, and there is nothing special. The interface uses a single-document interface, drawing on The VIEW class written by netizens can edit the binary file, and then write it into the chip, and it can be saved as a BIN file after reading the data. This may be useful. Also, you can view the check code (binary sum) of the file, which is also used by many programmers. It can read and write chips from 24C01 to 24C512. The bus speed is set to 100khz, which is relatively fast.

According to some of the previous NNPR instruments, heavy truck instruments and IVECO single-meter speed ratio burning process, some of them cannot meet the on-site operation of automotive equipment, the conversion rate between the microcontroller and the computer data burning conversion, and the operator is very tolerant of misoperation in the field. For other problems, we have specially developed the EEPR0M programmer for portable car instruments. It has the following characteristics and functions:
(1) The portable EEPR0M programmer does not need to use a PC, but only needs to use a single-chip computer control system to read and write the EEPR0M on the car instrument through the I2C bus data transmission method, which is convenient, fast, and low cost.
(2) The portable EEPR0M programmer can meet the requirements of on-site operation of automotive equipment.
(3) The portable EEPR0M programmer can fully meet the requirements of arbitrarily rewriting the speed ratio of the automobile instrument, the public subtotal of the throwing distance and the accumulated reading and zeroing.
(4) The portable EEPR0M programmer is a complete microcontroller control system,
For the operation of different EEPR0M models, just dial the DIP switch to the corresponding speed ratio and connect the corresponding matching harness. No need to connect other supporting power supply and PC.

Recommend a cost-effective eeprom programmer:

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Phone: 0086-13378667812

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Email: orod@chip-programmer.com

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