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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST7MC1 датащи(PDF) 214 Page - STMicroelectronics |
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ST7MC1 датащи(HTML) 214 Page - STMicroelectronics |
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214 / 308 page  ST7MC1/ST7MC2 214/308 MOTOR CONTROLLER (Cont’d) MOTOR CURRENT FEEDBACK REGISTER (MCFR) Read/Write Reset Value: 0000 0000 (00h) Bit 7= RPGS: Register Page Selection: 0: Access to registers mapped in page 0 1: Access to registers mapped in page 1 Bit 6= RST: Reset MTC registers. Software can set this bit to reset all MTC registers without resetting the ST7. 0: No MTC register reset 1: Reset all MTC registers Bits 5:3 = CFF[2:0]: Current Feedback Filter bits These bits select the number of consecutive valid samples (when the current is above the limit) needed to generate the active event. Sampling is done at fPERIPH/4. Table 67. Current Feedback Filter Setting Bits 2:0 = CFW[2:0]: Current Window Filter bits: These bits select the length of the blanking win- dow activated each time PWM is turned ON. The filter blanks the output of the current comparator. Table 68. Current Feedback Window Setting Note: Times are indicated for 4 MHz fPERIPH 76 54 32 10 RPGS RST CFF2 CFF1 CFF0 CFW2 CFW1 CFW0 CFF2 CFF1 CFF0 Current Feedback Samples 000 1 001 2 010 3 011 4 100 5 101 6 110 7 111 8 CFW2 CFW1 CFW0 Blanking Window 0 0 0 Blanking window off 0 0 1 0.5µs 01 0 1µs 0 1 1 1.5µs 10 0 2µs 1 0 1 2.5µs 11 0 3µs 1 1 1 3.5µs |
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