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SLR camera design dedicated microprocessor

F-E in Ni by a fast f】 switch to complete the other actions linked switches. The action of these switches have a command input JF eight shake off the processor to complete a request form shooting I8 shooting time of a typical cross Rong S. AMX . S, S, S to 4 switch S. With j: rJ metering and speed fast on site said. S, with the recording start, s the shutter action, s is busy re-Chuan S. And S, is stronger than external control. s and fighting a ~------- J --- f a t-¨, n slowly pry {9n power S is the mechanical movement by the camera to achieve the introduction of machine switching hydroxide, the control circuit must be Figure 9 Anti-jamming processing circuit schematic for the control when the s-pass, the resulting signal PC and PH, PC to another piece of analog circuits in a hold state power, PH emblem processor 32KHz clock to work. Driving LED display when the switch-on, industry-university allows the photographer to signal (RL) control of other circuits. If the self-timer mode, 10s signal and SLFT signal arising after the delay of 10 seconds and then RL signal generated by a pulse circuit connected Rmg and 2CMg signal and then switch s work, resulting in the aforementioned T signal to control the shutter speed control circuit, output m a shutter timing signal shdo to 2CMg signal low. In another one with the role of F sd switch so that all the internal state of the microprocessor complex Kivu. F wait time of 18 mm film can be seen from the I,[link widoczny dla zalogowanych], 【5 ・ S0 is the shutter time to move from ss * M2Hz eleven eleven dead rr ... Which Chia groan _, I ~ lllt controlled system and the regular five-shot, self-control when the static J self-timer self-timer setting switch state, start recording, you can right-l0 seconds to wait and drive light is moving ashamed. Xiao Bu _J Figure 10 when the drop 々 visible status signal timer. I Zuben change from the high, white film in the state. Start recording, S becomes higher. Began to issue White beat signal SS first counter is reset, and then press the second count, the expiry of lO seconds, los signal goes high, RL signal goes high to allow entry into the shooting after shooting, press the switch instruction six, model checking Select the code and speed shutter speed control can change the circuit has two modes: automatic 【A mode). Manual (M mode) A mode,[link widoczny dla zalogowanych], shutter speed, metering data to determine the M touched by the military, the shutter speed by a panel to set the shutter speed is shown by the circle pattern ¨ Check the circuit control of three chi r】 A model to determine high Four touch-type data is the data M given away the internal bus, as shown divider circuit and the input signal conversion circuit. M mode, shutter speed selection by GRAY coding, instead of the BCD encoding. The main difficulties is to make the original \Therefore,[link widoczny dla zalogowanych], the need for a code change the shutter speed of 6 Table 3 GRAY AI code binary code】} n0000Io0OllO00000500l0 (m0l250l0l0 [H] 1I_I25O010 [H] I1600 i00l003001000】 0} I50l010】】】 108 ¨ 0 4 0 1】】】 O0l 【0002000Il [H]】】 C code from the 1110l0B0l1ll0I1 circuit will be transformed into binary code GRAY Journal of the bus transfer. correspondence between the transformation shown in Table 3, seven, the flash control circuit using flash photography, in addition to X means available, but also F in A mode the circuit with a dedicated flash unit with two external input control signals CH and Autox been set A touch-type state. When Autox is low. c-ended input 2Hz signal (flash charging end of the signal. from another piece of simulation circuit),[link widoczny dla zalogowanych], the circuit is in the flash operation. At this point, seven fixed decoding the data code is 0101101. in the display section, only l/60 of the LED's 2Hz frequency synchronization in the CH cq light (see Figure 2), while the mode display lights are off. VIII Conclusion camera dedicated microprocessor is the heart of e-edge camera. In order to fit within the limited space requirements of the camera, using 56-pin flat package type Che technology. chip area is 32 × 3.6mm, integrated components for the 3100 London multiple MOS tube. bark supply voltage of 3 to maintain current consumption is】 0 microamps, the use of aluminum gate CMOS technology present,[link widoczny dla zalogowanych], the circuit has been used successfully in domestic SLR camera. overall performance meet the requirements. References: ( ,) the new country were covered camera exposure mode operation relying on the circuit Yao Curcuma special account \
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