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Hi All
I'm trying to signal more than one context waiting for the same Event but windows API functions lack the functionality to signal more than one task. I used the following APIs:
WaitForSingleObject() to wait for a signal from an event
CreateEvent() to create an event, I pass the manual...
Hi every body,
I'm an embedded software developer. I want to ask you a question concerning ppp networking.
I have a linux machine that is connected to a windows XP PC using PPP connection over serial port.
I managed to make the connection and was able to ping from both sides.
Now The PC is...
adc dc offset
dear xulfee,
thanks for your reply, the ADC is unipolar, that is, the input analog signal must be positive with respect to the ground, so I added that DC offset to shift the sine wave above zero before the adc. after sampling the shifted sine wave, I need to remove that offset...
dc offset removal
Dear friends,
I'm currently working on a project including AC current and voltage measurement.
The input signal to the ADC is a sine wave shifted by a constant dc offset, as the ADC is unipolar.
inside the microcontroller I need to remove that DC offset to restore the...
Dear all,
I need to ask you two questions concerning RFID tags:
1- Is it true that in order to communicate with mifare cards, the reader chip must be philips ASIC?
2- would you suggest me some RFID that comply with ISO 14443-A with memory of about 1kbyte? please, suggest some easy tag to...
writing on iso-14443 card
Dear FvM,
thank you for your reply. I need to ask you two questions:
1- Is it true that in order to communicate with mifare cards, the reader chip must be philips ASIC?
2- would you suggest me some RFID that comply with ISO 14443-A with memory of about 1kbyte...
writing to rfid
Dear All,
I have a question about RFID. I'm using TRF7960 reader chip. My question is:
I've succeeded to program the reader registers, configured it to ISO14443-A protocol. I was able to send REQA command and got the response from the tag, I sent SELECTS command and the tag...
send commands to trf7960 rfid
Dear all,
I have a question and really could use your help.
At the moment I'm working on a project for RFID reader. I noticed that most of the RFID reader chips on the market are compatible with ISO14443 protocols, but they have a fifo buffer that holds the...
em4097
Dear all,
I have a question and really could use your help.
At the moment I'm working on a project for RFID reader. I noticed that most of the RFID reader chips on the market are compatible with ISO14443 protocols, but they have a fifo buffer that holds the frames of the protocol. I...
Dear Friends,
I'm currently working on 68HC908LK24 and was having a question concerning the boot loader:
Freescale provided an application note about bootloader in HC08, in this application note we have two Tables for interrupt vectors, one at the protected segment of the flash and another at...
freertos interrupts
Dear friends,
I'm new to freeRTOS and have a question concerning the priorities of the AVR interrupts:
I know that the priority of interrupts in AVR controllers is fixed, that is for example, the ADC intterupt is far lower priority than the external interrupts and timers...
Switching to AVR32
hi
another question concerning STK1000. when I buy the 534$ kit. does the price include the two boards (the mother board and the daughter board) or it is just for the mother board.
adc with atmega16
hi
you can certainly do it so easy. connect the analog inputs to two different channels of PORTA . select the channel you want to sample, wait for a delay of about 25 us and then take a sample.
note that you can switch between channels from the ADMUX register. after you...
how to setup fujitsu fingerprint sensor
hi
i just wanted to know what are the prices for this sensor and is there any development kits for it? if yes how much to pay in such kit.
thanks
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