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the Z-World/Rabbit Semiconductor Brand names are serviced and supported exclusively
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Frequency Counter Card for SR9000 "Smartstar" System (SSFRQ)
The SSFRQ board has 8 TTL, 16 bit frequency inputs which will read frequency up to 45Khz.
int read_frequency( int ctr, unsigned long *count); // Return the frequency value in Hz.
The card also contains a TTL-RS232 converter for use as an additional serial port.
Custom programming for the PIC is done via the 26 pin connector shown.
Currently we have libraries for the PIC, in Smartstar systems, to perform the following functions:
1) A/D conversion.
2) PWM output at 100 Hz 10% to 90% duty cycle for automotive applications.
3) PWM output at 1.2Khz for 0-5 V analog output.
4) Frequency measurement of flow rates.
5) 5 Wire Touch Overlay control input for an LCD display.
PIC software library functions include the following instructions:
1) R/W an address in PIC RAM. ( This also allows setting control registers)
2) R/W an I/O bit on the PIC chip. ( This also allows setting control registers)
3) R/W PWM duty cycle.
4) Read Touch overlay key hit.
5) Read frequency of the counter input.
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