FreeCalypso > hg > freecalypso-tools
annotate target-utils/libcommon/cmd_w16.c @ 37:f24b31082605
c139explore: turn on ARMIO module clock, needed to exercise the buzzer
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 26 Oct 2016 00:02:27 +0000 |
parents | e7502631a0f9 |
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Mychaela Falconia <falcon@freecalypso.org>
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1 /* |
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Mychaela Falconia <falcon@freecalypso.org>
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2 * w16 hexaddr xxxx -- write a 16-bit register or memory location |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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3 */ |
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Mychaela Falconia <falcon@freecalypso.org>
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4 |
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Mychaela Falconia <falcon@freecalypso.org>
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5 #include <sys/types.h> |
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Mychaela Falconia <falcon@freecalypso.org>
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6 #include "types.h" |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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7 |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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8 void |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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9 cmd_w16(argbulk) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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10 char *argbulk; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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11 { |
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Mychaela Falconia <falcon@freecalypso.org>
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12 char *argv[3]; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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13 u_long addr, data; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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14 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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15 if (parse_args(argbulk, 2, 2, argv, 0) < 0) |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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16 return; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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17 if (parse_hexarg(argv[0], 8, &addr) < 0) { |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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18 printf("ERROR: arg1 must be a valid 32-bit hex address\n"); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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19 return; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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20 } |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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21 if (addr & 1) { |
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Mychaela Falconia <falcon@freecalypso.org>
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22 printf("ERROR: unaligned address\n"); |
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Mychaela Falconia <falcon@freecalypso.org>
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23 return; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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24 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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25 if (parse_hexarg(argv[1], 4, &data) < 0) { |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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26 printf("ERROR: arg2 must be a valid 16-bit hex value\n"); |
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Mychaela Falconia <falcon@freecalypso.org>
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27 return; |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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28 } |
e7502631a0f9
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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29 *(volatile u16 *)addr = data; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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30 } |