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Hi, I have a circuit which reads 24V, scales down to controller compatible voltage and controller reads HIGH when 24V is connected, else 0 when 0V is connected. Essentially its a positive logic. 24V = HIGH and 0V = LOW. If I want to convert the same circuit to a NEGATIVE LOGIC i.e 24V = LOW and 0V = HIGH, what would be simplest way without chan
is it necessary to bootload atmga8 for making diy usbasp programmer mentioned on the usbasp programmer link or a blank ic may be used here? also for making serial port pic programmer can i use pic16f72. i don't know whether the pic16f72 may be blank or have some program in it to work as programmer?
Hi Folks, I am looking for a working micromaster / speedmaster / epmaster LV48 by ICE Technology, with or without PSU. OK, so they are antiques, but so are the chips that need to be tested. Or, does someone have a way to make their GLV-32 run the "chiptest" routine for 74/4000 series logics, as it does not seem to be an available option on t
I am using DSP controller TMS320F28069 to make my own development launchpad Board. I have used the reference of XDS100V2 Jtag Schematics to design my on-board programmer in that development board. I have printed the PCB but when I went to program my controller via on-board programmer, my code composer studio stuck everytime I tried to program the c
Lumped Components serve well need Microstrip structures.. The simplest Form is a Parallel LC in series or a Series LC in Parallel or combination of those.But better solution is to use N-stage LC filter approximations ( Butterworth or Chebychev etc. ) then apply Bandstop Transformation.The best method is to use a Filter Design Program..
I'm looking for old Altera EPM7128SL FPGAs. On ebay there are many at a bargain price, but I don't trust them. Could you give me some advice on where to buy them?
Is there a way I can use the programmer on the ATMEGA328P-XMINI to program an external ATMEGA328P on another PCB?
Hey, can someone recommend me the cheapest programmer for C8051F300 module sold on ebay? The same module from this thread: Preferrably the programmer tool should be also sold on ebay. Thank you.
Hello, I am new here and would like to greet all forum users first, :-) I have several questions probably due to lack of knowledge and experience. 1. IC1: cFeon EN29LV040A is the equivalent for IC2: SST39VF040-70? I have content written down from IC1 and I would like to write it on IC2. The saving process goes up to ca 50% and programming is
Hi, I am looking for thermocouples with readers. I just found one with software support. There is a statement in the user manual / datasheet. I am trying to understand this statement. "RS-232 port to transfer data to PC for analysis" Using RS-232 port to transfer data to PC means that the serial communication protocol is UART ? Is it po
Usually, an relay require a AC-DC adapter for its operation. It is quite verbose. Therefore, I am looking for a 220VAC Relay which built-in 220AC to DC. Could you please suggest me several compatible modules? Thanks a lot!
The camera is 3 meters away from the playground. Distance is defined between two points. 3 meter distance between which points? First, you need to correct for the distortion. The camera lens is too close and is showing the wide angle effect. (side lines are looking curved whereas they are straight lines). simplest way is to use th
Hi i have a problem i hope you could help me. :) im interfacing a 4x4 keypad with an lcd for password detection my pic16f877a pic have a infinite loop while waiting for an input causing my i/o port's output voltage to be only 0.7V can u tell me how to solve the output voltage problem, its at PORTD *call keypad_data is a routine that returns
Hi everybody; I need help to know how you can read the hex code of a Chinese MCU, specifically the STC15F204EA. Would any partner be so kind as to tell me the necessary tools and software to read the code? Your collaboration will be greatly appreciated. Thanks in advance.
Dear my friends, I have a EP4C10 FPGA (Cyclone IV). It is open (no lock bit set). I want to readback the firmware but i can not use examine features. Can anybody help me? THX
Hi, I am trying to bring up a Board using the ATSAMD20E15 But, I am getting an error from the programmer: Error could not activate interface. But found a DAP with ID 0xbc11411 This just in, when using the "Device Programming" tab/window I can uncheck the erase flash before programming and verify after programming, then I am able to program
Hi, I am trying to bring up a Board using the ATSAMD20E15 But, I am getting an error from the programmer: Error could not activate interface. But found a DAP with ID 0xbc11411 Also, just in, when using the "Device Programming" tab/window I can uncheck the erase flash before programming and verify after programming, then I am able to progr
Hi all, Can anyone Please let us know the External programmer which supports this IC AT89LP51RD2-20PU (40pin PDIP Package). Regards, V. Prakash
Hi I have a AT45DB041B connected to the ICSP of the atmega644 and stores data ok. I am trying to replace it with the through hole AT45D041 which seems identical to me apart from the 5v requirement, but this one does not work. Aren't these identical memories, maybe there is something I am missing?
If the inverter still works when it beeps and warns, the simplest solution is to remove the warning buzzer. If the inverter is destroyed because of 14-15V supply, it is junk anyway.