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Search found 11 results on 1 pages for 'volting'.

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• Video capture Performance

  - by volting

  I have noticed high CPU utilization in a number of applications (except mplayer) which read from the embedded webcam on my laptop. Bizarrely CPU utilization varies proportionately to the level of illumination present. I know that that high CPU usage has nothing to do with rendering the video, as I have written a simple app using the OpenCV library…

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• Corrupted NTFS Drive showing multiple unallocated partitions

  - by volting

  My external hdd with a single NTFS partition was accidentaly plugged out (kids!)... and is now corrupted. Iv tried running ntfsfix - with no luck - output below.. When I look at the disk under disk management in Windows 7 it shows up as having 5 partitions 2 of which are unallocated - none have drive letters and it is not possible to set any…

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• Writing Device Drivers for Microcontrollers, where to define IO Port pins?

  - by volting

  I always seem to encounter this dilemma when writing low level code for MCU's. I never know where to declare pin definitions so as to make the code as reusable as possible. In this case Im writing a driver to interface an 8051 to a MCP4922 12bit serial DAC. Im unsure how/where I should declare the pin definitions for The CS(chip select)…

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• how to represent static variable declaration in flowchart documentation?

  - by volting

  Im in the process of documenting some firmware but I'm unsure what the standard is (if there is one)for representing static variable declaration in flowcharts Regards, V

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• Ignore carriage returns in scanf before data.... to keep layout of console based graphics with conio

  - by volting

  I have the misfortune of having use conio.h in vc++ 6 for a college assignment, My problem is that my graphic setup is in the center of the screen... e.g. gotoxy( getcols()/2, getrows()/2); printf("Enter something"); scanf( "%d", &something ); now if someone accidentally hits enter before they enter the "something", then the…

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• how to represent static variable declaration in a flow chart documentation?

  - by volting

  Im in the process of documenting some firmware but I'm unsure what the standard is (if there is one)for representing static variable declaration in flowcharts Regards, V

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• Help writing getstring function

  - by volting

  Im having some trouble writing a getstring function, this is what I have so far. Regards, V const char* getstring() { char *buffer; int i = 255; buffer = (char *)malloc(i*sizeof(char)); *buffer = getchar(); while ( *buffer != '\n' ) { buffer++; *buffer = getchar(); } *buffer = '\0'; …

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• Macros to set and clear bits

  - by volting

  Im trying to write a few simple macros to simplify the task of setting and clearing bits which should be a simple task however I cant seem to get them to work correctly. #define SET_BIT(p,n) ((p) |= (1 << (n))) #define CLR_BIT(p,n) ((p) &= (~(1) << (n)))

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• How to achieve interaction between GUI class with logic class

  - by volting

  Im new to GUI programming, and haven't done much OOP. Im working on a basic calculator app to help me learn GUI design and to brush up on OOP. I understand that anything GUI related should be kept seperate from the logic, but Im unsure how to implement interaction between logic an GUI classes when needed i.e. basically passing variables…

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• Problem with pointers and getstring function

  - by volting

  I am trying to write a function to get a string from the uart1. Its for an embedded system so I don't want to use malloc. The pointer that is passed to the getstring function seems to point to garbage after the gets_e_uart1() is called. I don't use pointers too often so I'm sure it is something really stupid and trivial that Im doing…

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• How to verify power provided to processors is clean

  - by GregC

  Once in a blue moon, I am seeing a blue screen of death on a shiny new Dell R7610 with a single 1100 Watt Dell-provided power supply on a beefy UPS. BCode is 101 (A clock interrupt was not received...), which some say is caused by under-volting a CPU. Naturally, I would have to contact Dell support, and their natural reaction would…

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