Thread View: comp.os.ms-windows.programmer.misc
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Started by Rousseau Pascal
Thu, 09 Nov 1995 00:00
help picture acquisition card
Author: Rousseau Pascal
Date: Thu, 09 Nov 1995 00:00
Date: Thu, 09 Nov 1995 00:00
32 lines
1998 bytes
1998 bytes
Hello everybody. We are developing a picture card with a PCI 32 bits bus, but we have a problem with the data acquisition speed. The data acquisition speed is now only 500Khz and we would like a minimum speed of 3Mhz. The soft use actually function "inport" of C language with a loop to take data. Are there functions more efficient (C, ASM, ....)? It is really necessary to use DMA for minimun data acquisition speed of 3Mhz? If yes : How? (soft/ hard). I know how to program the DMA board. Thanks a lot for your response. Pascal PS : Sorry for my bad english. #=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D# # Rousseau Pascal # # Laboratoire d'Optique Appliqu=E9e # # Adress: # # ENSTA - centre de l'yvette # # 91120 PALAISEAU # # FRANCE # # # # e-mail: rousseau@enstay.ensta.fr # # http://www.ensta.fr # #=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D#
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