FreeCalypso > hg > freecalypso-tools
annotate target-utils/libcommon/abbcmd.c @ 407:19e5a3e2f9c0
fcup-settime: moved time() retrieval a little closer to the output
A fundamental problem with all simple time transfer tools is that there is
always some delay between the time retrieval on the source system and that
transmitted time being set on the destination, and the resulting time
on the destination system is off by that delay amount. This delay cannot
be fully eliminated when working in a simple environment like ours,
but we should make our best effort to minimize it. In the present case,
moving the atinterf_init() call before the time() retrieval should make
a teensy-tiny improvement.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 11 Aug 2018 21:52:17 +0000 |
parents | 4be951811791 |
children | 44a1de4264d8 |
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1 /* |
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2 * abbr pg reg -- read ABB register |
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3 * abbw pg reg val -- write ABB register |
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4 */ |
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5 |
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6 #include <sys/types.h> |
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7 #include "types.h" |
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8 #include "abbdefs.h" |
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9 |
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10 extern u_long strtoul(); |
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11 |
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12 extern u16 abb_reg_read(); |
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13 extern void abb_reg_write(); |
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14 |
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15 void |
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16 cmd_abbr(argbulk) |
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17 char *argbulk; |
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18 { |
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19 char *argv[3]; |
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20 u32 pg, reg, val; |
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21 |
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22 if (parse_args(argbulk, 2, 2, argv, 0) < 0) |
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23 return; |
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24 pg = strtoul(argv[0], 0, 0); |
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25 reg = strtoul(argv[1], 0, 0); |
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26 if (pg > 1 || reg > 31) { |
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27 printf("ERROR: argument(s) out of range\n"); |
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28 return; |
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29 } |
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30 abb_init(); |
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31 val = abb_reg_read(PAGE(pg) | reg); |
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32 printf("%03X\n", val); |
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33 } |
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34 |
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35 void |
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36 cmd_abbw(argbulk) |
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37 char *argbulk; |
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38 { |
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39 char *argv[4]; |
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40 u32 pg, reg, val; |
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41 |
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42 if (parse_args(argbulk, 3, 3, argv, 0) < 0) |
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43 return; |
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44 pg = strtoul(argv[0], 0, 0); |
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45 reg = strtoul(argv[1], 0, 0); |
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46 val = strtoul(argv[2], 0, 16); |
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47 if (pg > 1 || reg > 31 || val > 0x3FF) { |
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48 printf("ERROR: argument(s) out of range\n"); |
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49 return; |
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50 } |
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51 abb_init(); |
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52 abb_reg_write(PAGE(pg) | reg, val); |
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53 } |