Mhz Frequency Meter counter. Introduction This is 6. MHz frequency meter counter for measuring frequency from 1. Hz to 6. 0 MHz with 1. Hz resolution.  The meter provides very stable readings and has excellent input sensitivity thanks to on board amplifier and TTL converter, so it can even measure weak signals from crystal oscillators. With the addition of prescaller it is possible to measure the frequency of 1. GHz and above. The basic idea comes from the AN5. K150 Programmer Software' title='K150 Programmer Software' />The manuals list of Synti Groep Below you find a full summary of all the owners manuals, service manuals, schematics and other documentation we have available of. This video show how to use a low cost EEPROM programmer. The unit used is a USB based device and is intended for series 24 and 25 EEPROMs. Below is a. Entdecken Sie die groe Vielfalt an Angeboten fr Platinen Entwicklungskits. RiesenAuswahl fhrender Marken zu gnstigen Preisen online bei eBay kaufenMicrochip application note Frequency counter using PIC1. C5x where you may find a simple software wich implements a frequency counter using a PIC microcontroller. I wrote a specifically designed software to improve the counter resolution, to handle the IF mode and value by means of an operating menu, to decode and edit the read frequency on an LCD display. The result was a simple and effective device. The electrical schematic is very simple, given that most of the functions are implemented by the microprocessor. It was needed only an amplifier stage to raise the input signal level from 2. V p. p. to about 3 volts p. A self biased common emitter amplifier produces a pseudo TTL driving signal. The 1. 0u. H inductor in the collector lead helps extend the high frequency response. Any fast NPN transistor should be suitable. I used a BFR9. 1, but you may substitute a transistor scrounged from an old TV tuner or a VHF receiver. Books To In Pdf Format. The amplifiers quiescent Vce is set to 1. It is nominally 1. K, but you may need to change it. The collector voltage is applied to the PICs countertimer via a series 4. The PIC is able to short this signal to ground via an internal pull down transistor to disable counting. The PIC implements a 3. K150 Programmer Software Problems' title='K150 Programmer Software Problems' />Counting is enabled by turning off the internal pull down transistor for exactly 0. At the end of this time, the PIC divides the count by 4, then adds or subtracts the appropriate IF frequency to get the actual frequency. The resulting count is converted to printable characters and delivered. PCB Design Download Firmware and schematic Click here to download. Calibrating before use Before the frequency meter will work properly, it must be calibrated. This may be as simple as connecting a known frequency source and adjusting the trimmer capacitor so the correct value is displayed. Actualizacin del Firmware a Programador PIC K150 Updating the firmware and using the latest version of the software the PIC programmer K150 recognizes. This is 60 MHz frequency meter counter for measuring frequency from 10 Hz to 60 MHz with 10 Hz resolution. The meter provides very stable readings and has excellent. K150. USB PIC PROGRAMMER This documentation was written August 25, 2004. This is the third in a series of three PIC Programmers designed by Tony Nixon. Bartpe Windows 7 Iso Download. If you are unable to adjust the displayed frequency, then a coarse calibration is required. This involves starting with the power off. Pin 1. 0 is connected to ground and the power is then turned on and held on. The PIC will measure and display the input frequency, followed by the letters CAL. If you cant adjust the indicated frequency to the correct value by adjusting the 3. F trimmer, then coarse adjustments can be made by briefly connecting pin 1. It may take several tries, because the program only checks these pins once each measurement 0. Once you are happy with the adjustment, remove the ground from pin 1. This will cause the PIC to store the calibration in non volatile internal memory.