4.104.114.84.95
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1 | # |
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2 | # $Id$ |
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3 | # |
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4 | |
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5 | General |
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6 | ======= |
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7 | |
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8 | + It would be nice to utilize the interrupt capabilities of some |
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9 | RTC parts. This could be used to trigger checking the software |
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10 | clock against the hardware clock. |
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11 | |
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12 | + The periodic capability of most RTCs is not suitable for use |
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13 | as a general purpose flexible clock tick source. For example, |
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14 | many RTCs generate only a handful of periods with 100 Hz being the |
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15 | most frequent. |
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16 | |
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17 | + The tick field is not set on get. Anything smaller than a second |
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18 | is ignored on set and get operations. |
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19 | |
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20 | + Day of week is ignored since RTEMS does not set it internally. |
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21 | |
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22 | + There is no attempt in RTEMS to know about time zones. |
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23 | |
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24 | Harris ICM7170 |
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25 | ============== |
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26 | |
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27 | + Untested. |
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28 | |
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29 | + Interrupt capabilities are ignored. |
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30 | |
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31 | Mostek 48T08 |
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32 | ============ |
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33 | |
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34 | + Untested. |
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35 | |
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36 | + NVRAM is ignored. |
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37 | |
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