IEEE 802.15.4 subsystem
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| Source at commit 03ee256a3b1a774e72bc79a65e02e62a56fc62dd created 7 years 22 days ago. By Stefan Schmidt, web: add 0.3 firmware binaries into release folder for web page | |
|---|---|
| 1 | /* |
| 2 | * atrf-trim/atrf-trim.c - AT86RF230 oscillator trim utility |
| 3 | * |
| 4 | * Written 2010-2011 by Werner Almesberger |
| 5 | * Copyright 2010-2011 Werner Almesberger |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | |
| 14 | #include <stdlib.h> |
| 15 | #include <stdio.h> |
| 16 | #include <unistd.h> |
| 17 | #include <sys/time.h> |
| 18 | |
| 19 | #include "at86rf230.h" |
| 20 | #include "atrf.h" |
| 21 | |
| 22 | |
| 23 | static void usage(const char *name) |
| 24 | { |
| 25 | fprintf(stderr, "%s [-d driver[:arg]] [trim_value]\n", name); |
| 26 | exit(1); |
| 27 | } |
| 28 | |
| 29 | |
| 30 | int main(int argc, char *const *argv) |
| 31 | { |
| 32 | const char *driver = NULL; |
| 33 | struct atrf_dsc *dsc; |
| 34 | int trim = -1; |
| 35 | char *end; |
| 36 | int c; |
| 37 | |
| 38 | while ((c = getopt(argc, argv, "d:")) != EOF) |
| 39 | switch (c) { |
| 40 | case 'd': |
| 41 | driver = optarg; |
| 42 | break; |
| 43 | default: |
| 44 | usage(*argv); |
| 45 | } |
| 46 | |
| 47 | switch (argc-optind) { |
| 48 | case 0: |
| 49 | break; |
| 50 | case 1: |
| 51 | trim = strtoul(argv[optind], &end, 0); |
| 52 | if (*end || trim > 15) |
| 53 | usage(*argv); |
| 54 | break; |
| 55 | default: |
| 56 | usage(*argv); |
| 57 | } |
| 58 | |
| 59 | dsc = atrf_open(driver); |
| 60 | if (!dsc) |
| 61 | return 1; |
| 62 | |
| 63 | if (trim == -1) { |
| 64 | trim = atrf_reg_read(dsc, REG_XOSC_CTRL) & XTAL_TRIM_MASK; |
| 65 | printf("%d (%d.%d pF)\n", trim, trim*3/10, trim*3 % 10); |
| 66 | } else { |
| 67 | atrf_reg_write(dsc, REG_XOSC_CTRL, |
| 68 | (XTAL_MODE_INT << XTAL_MODE_SHIFT) | trim); |
| 69 | } |
| 70 | |
| 71 | return 0; |
| 72 | } |
| 73 | |
