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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PM0056 датащи(PDF) 153 Page - STMicroelectronics |
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PM0056 датащи(HTML) 153 Page - STMicroelectronics |
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153 / 156 page  DocID15491 Rev 5 153/156 PM0056 Core peripherals 4.5.3 SysTick current value register (STK_VAL) Address offset: 0x08 Reset value: 0x0000 0000 Required privilege: Privileged 4.5.4 SysTick calibration value register (STK_CALIB) Address offset: 0x0C Reset value: 0x0002328 Required privilege: Privileged The CALIB register indicates the SysTick calibration properties. 31 3029 28 27 26 25 24 23 22 21 20 19 18 17 16 Reserved CURRENT[23:16] rw rw rw rw rw rw rw rw 15 14 13 12 11 10 9 8 76 54 3 21 0 CURRENT[15:0] rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw Bits 31:24 Reserved, must be kept cleared. Bits 23:0 CURRENT[23:0]: Current counter value The VAL register contains the current value of the SysTick counter. Reads return the current value of the SysTick counter. A write of any value clears the field to 0, and also clears the COUNTFLAG bit in the STK_CTRL register to 0. 31 3029 28 27 26 25 24 23 22 21 20 19 18 17 16 NO REF SKEW Reserved TENMS[23:16] r r rr rrrr r r 15 14 13 12 11 10 9 8 76 54 3 21 0 TENMS[15:0] r rrrr r r r r r rrrr r r Bit 31 NOREF: NOREF flag Reads as zero. Indicates that a separate reference clock is provided. The frequency of this clock is HCLK/8. |
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