7000 series readout system: Difference between revisions
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===Microcontroller-based Readout Board=== | ===Microcontroller-based Readout Board=== | ||
Finally, from 1989/1990 on, a third generation readout board designed around an 80C31 micro-controller replaced the previous versions in the last series of [[7104]], [[R7103]], [[R7844]] and [[7904A]] models.This version no longer used any Tek-made special ICs, manufacture of which had been discontinued by that time. The | Finally, from 1989/1990 on, a third generation readout board designed around an 80C31 micro-controller replaced the previous versions in the last series of [[7104]], [[R7103]], [[R7844]] and [[7904A]] models. This version no longer used any Tek-made special ICs, manufacture of which had been discontinued by that time. The board is part SMD, part through-hole. It is described in [http://w140.com/Tektronix_7904A_OCRed_by_Tabalabs.pdf this version of the 7904A manual] (pages 288 through 291 described the EPROM version above, while the 80C31 version is described on pages 380 through 391). | ||
[[File:Microcontroller based readout board block diagram.jpg|600px|Block diagram of 8031 based readout board]] | [[File:Microcontroller based readout board block diagram.jpg|600px|Block diagram of 8031 based readout board]] | ||