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Recent content by Willebul

  1. W

    Why the isp software can't read the signature of the at89s52

    Re: problem in isp. Hi Normally with ISP and JTAG programmers when you get eratic results you have noise on the clock line of the ISP programmer. Normally it helps putting n small ceramic capasitor (2.7pf to 10pf ) near the device you try to program on the TCK line ( or whatever the clock...
  2. W

    Help me switch to AVR32 from AVR

    Re: Switching to AVR32 Hi Inclues the lot : STK1000 provides a complete AT32AP7000 development environment. The kit has two ethernet ports, a high quality QVGA LCD, a loudspeaker, and connectors for USART, PS/2, VGA, and USB. A expansion header can be used for prototyping. A pre-installed...
  3. W

    ARM query (Plz Plz help me)

    winarm optimization Hi You cannot go wrong is looking at the Atmel SAM7 series. Free GNU tools available at hxxp://www.yagarto.de/ hxxp://www.siwawi.arubi.uni-kl.de/avr_projects/arm_projects/#winarm with a lot of examplles. You can also buy n nice dev kit for a very low price wb
  4. W

    Connecting Atmega8 directly to PC via USB

    atmega8 usb driver Hi Why not use one of the Atmel AT90USBxxx devices , It is a AVR with USB port included. Your mega8 code will run as is , just add the usb code Wb
  5. W

    Help me switch to AVR32 from AVR

    avr32 parallel port Hi First start by going to the Atmel web site and have a look at the documents. Depending on what you need you can look at the AP7000 devices. full blown with MMU and support for linux image etc. but no on board flash on board graphic controller etc . Good for doing PDA...
  6. W

    who have level shift circuit?

    Hi For pure digital level shifting look at the Texas instruments Sn74LVC1T45 and Sn74LVC2T45 dual supply buffers. Regards W
  7. W

    Problems debugging Stratix FPGA

    Hi What is your timing constraints and what does the timing analyst tell you after the compile. Sounds like you are running into timing issues Can you upload tour routing/timing report Regards W
  8. W

    How to produce both 5V, ±12V from 0÷24VDC

    Hi Look at this reference design for the LM5020 vin 10/12V out 100,-36,-52 you must just change the transformer windings to get the correct output or loot at the national web site they have tons of reference designs to choose from Regards W
  9. W

    PC Oscilloscope Design using Altera

    Hi The easy way in a Altera device is to place a signal tap analyser inside a device montoring a couple of input pins , and taking this pins to the circuit you need to have alook at , the analyzer software is already built into the quartus software. Regards W
  10. W

    ask for datasheet about chips related with set-top box.

    Hi Most set top boxes use chipsets , have a look at Broadcomm , NEC and ST they are some of the many big companies making chipsets for set top boxes. Regards
  11. W

    Why is the Standby Current so high? (Altera Cyclone FPGA)

    Re: Why is the Standby Current so high? (Altera Cyclone FPGA Hi Have a look at the following link https://www.altera.com/support/devices/power/overview/pow-overview.html Regards
  12. W

    how many times the 'EPCS1' could be writen?

    Hi Altera configuration handbook Page 4-1 states more than 100 000 erase write cycles for EPCSxx family Regards
  13. W

    How to make my VHDL core protected or make an IP-Core?

    Hi For sysnthesys EDIF is good there is no means known to get back to VHDL If you are using Altera FPGA you can export a VQM ( Verilog netlist file ) file wich is usable but cannot be edited . Xilinx should have a similar netlist format ( XNF I think ) Regards
  14. W

    an altera stratix device question

    Hi Yes IO pin is fixed to a spesific IO bank , you can route any signal to the IO pin but if you use say a PCI pin or funny HSTTLxx signal it will ony be avaible on a spesific bank ( PCI top and bottom banks ) other interfaces left and right bank. W
  15. W

    Best micro for integrating rf into a project

    rlp434 dan tlp434 You can also have a look at the Freescle (Motorola ) 68HC908RF2 device , there is also a Atmel micro with rf on board w

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