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3.3 to 5v buffer
Hello and marry xmas :)))
Can someone give me an idea how to interface a 3.3V microcontroller (ADuC702x) to a 5V MAX7219? The 7219 needs a minimum of 3.5V for the SPI clock, so i need something to convert the level (3.3 -> 5) in one direction at 1.6MHz minimum.
:D
anglia idealist key
Sorry for asking again but are you sure that it is possible to debug code that is in FLASH, as far as i remeber the Wiggler only supports debugging from RAM.... or maybe not :)
cheers
anglia idealist
HI,
i have just found that this is a FREE IDE for the GCC and GDB for the ST ARM based microcontrollers. If someone of you have used it, please tell me is it possible to use the Wiggler JTAG with it for downloading to flash and debugging from flash?
cirrus logic adc problems
Are you sure that your power supply is noise free and the layout and groundung of the board is OK? You can try this:
Take power supply from a battery, then collect 200 - 300 samples and calculate the average value.
Hi,
Can you recommend me good power line filter? I need a filter to protect my device from noise entering from the mains. There is a uC with ADC on the board and sometimes when an inductive load is switched ON/OFF on the same phase all things just freeze. There are a voltage supervisor and a...
ADuC and RC filter
Hi,
for my final project in the university i am making a three-phase energy meter with ADuC 702X series. I am planning to put a RC Anti-aliasing filter on the analog inputs( it is a SAR ADC inside), but i am not very sure what the maximum value of the capacitor can be...
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