gs fan
GainSpan Wi-Fi library see: http://mbed.org/users/gsfan/notebook/gainspan_wifi/
Fork of
GSwifi_old
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gs fan
GainSpan Wi-Fi library
The GS1011 is an ultra low power 802.11b wireless module from GainSpan.
see: http://mbed.org/users/gsfan/notebook/gainspan_wifi/
Information
Please change the baud rate in advance.
- ATB=115200
- AT&W0
It may be better and sometimes faster.
GSwifi gs(p13, p14, baud);
Heavily modified new library: http://mbed.org/users/gsfan/code/GSwifi
ゲインスパン Wi-Fi モジュール ライブラリ
ゲインスパン社の低電力 Wi-Fiモジュール（無線LAN） GS1011 シリーズ用のライブラリです。
解説: http://mbed.org/users/gsfan/notebook/gainspan_wifi/
Information
モジュールはあらかじめ次のコマンドでボーレートを変更しておく。
- ATB=115200
- AT&W0
場合によってはもっと高速の方がいいかもしれない。クラス宣言時にレート設定をする。
GSwifi gs(p13, p14, baud);
大幅に更新された新しいライブラリ: http://mbed.org/users/gsfan/code/GSwifi
RingBuffer.cpp@0:2f6062c6d018, 2012-07-09 (annotated)
- Committer:
- gsfan
- Date:
- Mon Jul 09 14:36:06 2012 +0000
- Revision:
- 0:2f6062c6d018
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| gsfan | 0:2f6062c6d018 | 1 | /* |
| gsfan | 0:2f6062c6d018 | 2 | * mbed library for RingBuffer |
| gsfan | 0:2f6062c6d018 | 3 | * Copyright (c) 2010 Hiroshi Suga |
| gsfan | 0:2f6062c6d018 | 4 | * Released under the MIT License: http://mbed.org/license/mit |
| gsfan | 0:2f6062c6d018 | 5 | */ |
| gsfan | 0:2f6062c6d018 | 6 | |
| gsfan | 0:2f6062c6d018 | 7 | /* @file |
| gsfan | 0:2f6062c6d018 | 8 | * @brief Ring Buffer |
| gsfan | 0:2f6062c6d018 | 9 | */ |
| gsfan | 0:2f6062c6d018 | 10 | |
| gsfan | 0:2f6062c6d018 | 11 | #include "RingBuffer.h" |
| gsfan | 0:2f6062c6d018 | 12 | |
| gsfan | 0:2f6062c6d018 | 13 | RingBuffer::RingBuffer (int p_size) { |
| gsfan | 0:2f6062c6d018 | 14 | size = p_size + 1; |
| gsfan | 0:2f6062c6d018 | 15 | buf = new char[size]; |
| gsfan | 0:2f6062c6d018 | 16 | addr_w = 0; |
| gsfan | 0:2f6062c6d018 | 17 | addr_r = 0; |
| gsfan | 0:2f6062c6d018 | 18 | } |
| gsfan | 0:2f6062c6d018 | 19 | |
| gsfan | 0:2f6062c6d018 | 20 | RingBuffer::~RingBuffer () { |
| gsfan | 0:2f6062c6d018 | 21 | delete [] buf; |
| gsfan | 0:2f6062c6d018 | 22 | } |
| gsfan | 0:2f6062c6d018 | 23 | |
| gsfan | 0:2f6062c6d018 | 24 | int RingBuffer::put (char dat) { |
| gsfan | 0:2f6062c6d018 | 25 | int next; |
| gsfan | 0:2f6062c6d018 | 26 | |
| gsfan | 0:2f6062c6d018 | 27 | next = (addr_w + 1) % size; |
| gsfan | 0:2f6062c6d018 | 28 | if (next == addr_r) { |
| gsfan | 0:2f6062c6d018 | 29 | return -1; |
| gsfan | 0:2f6062c6d018 | 30 | } |
| gsfan | 0:2f6062c6d018 | 31 | buf[addr_w] = dat; |
| gsfan | 0:2f6062c6d018 | 32 | addr_w = next; |
| gsfan | 0:2f6062c6d018 | 33 | return -1; |
| gsfan | 0:2f6062c6d018 | 34 | } |
| gsfan | 0:2f6062c6d018 | 35 | |
| gsfan | 0:2f6062c6d018 | 36 | int RingBuffer::put (char *dat, int len) { |
| gsfan | 0:2f6062c6d018 | 37 | int next, i; |
| gsfan | 0:2f6062c6d018 | 38 | |
| gsfan | 0:2f6062c6d018 | 39 | |
| gsfan | 0:2f6062c6d018 | 40 | for (i = 0; i < len; i ++) { |
| gsfan | 0:2f6062c6d018 | 41 | next = (addr_w + 1) % size; |
| gsfan | 0:2f6062c6d018 | 42 | if (next == addr_r) { |
| gsfan | 0:2f6062c6d018 | 43 | break; |
| gsfan | 0:2f6062c6d018 | 44 | } |
| gsfan | 0:2f6062c6d018 | 45 | buf[addr_w] = dat[i]; |
| gsfan | 0:2f6062c6d018 | 46 | addr_w = next; |
| gsfan | 0:2f6062c6d018 | 47 | } |
| gsfan | 0:2f6062c6d018 | 48 | return i; |
| gsfan | 0:2f6062c6d018 | 49 | } |
| gsfan | 0:2f6062c6d018 | 50 | |
| gsfan | 0:2f6062c6d018 | 51 | int RingBuffer::get (char *dat) { |
| gsfan | 0:2f6062c6d018 | 52 | if (addr_r == addr_w) { |
| gsfan | 0:2f6062c6d018 | 53 | return -1; |
| gsfan | 0:2f6062c6d018 | 54 | } |
| gsfan | 0:2f6062c6d018 | 55 | *dat = buf[addr_r]; |
| gsfan | 0:2f6062c6d018 | 56 | addr_r = (addr_r + 1) % size; |
| gsfan | 0:2f6062c6d018 | 57 | return 0; |
| gsfan | 0:2f6062c6d018 | 58 | } |
| gsfan | 0:2f6062c6d018 | 59 | |
| gsfan | 0:2f6062c6d018 | 60 | int RingBuffer::get (char *dat, int len) { |
| gsfan | 0:2f6062c6d018 | 61 | int i; |
| gsfan | 0:2f6062c6d018 | 62 | |
| gsfan | 0:2f6062c6d018 | 63 | for (i = 0; i < len; i ++) { |
| gsfan | 0:2f6062c6d018 | 64 | if (addr_r == addr_w) { |
| gsfan | 0:2f6062c6d018 | 65 | break; |
| gsfan | 0:2f6062c6d018 | 66 | } |
| gsfan | 0:2f6062c6d018 | 67 | dat[i] = buf[addr_r]; |
| gsfan | 0:2f6062c6d018 | 68 | addr_r = (addr_r + 1) % size; |
| gsfan | 0:2f6062c6d018 | 69 | } |
| gsfan | 0:2f6062c6d018 | 70 | return i; |
| gsfan | 0:2f6062c6d018 | 71 | } |
| gsfan | 0:2f6062c6d018 | 72 | |
| gsfan | 0:2f6062c6d018 | 73 | int RingBuffer::available () { |
| gsfan | 0:2f6062c6d018 | 74 | if (addr_w < addr_r) { |
| gsfan | 0:2f6062c6d018 | 75 | return addr_r - addr_w - 1; |
| gsfan | 0:2f6062c6d018 | 76 | } else { |
| gsfan | 0:2f6062c6d018 | 77 | return (size - addr_w) + addr_r - 1; |
| gsfan | 0:2f6062c6d018 | 78 | } |
| gsfan | 0:2f6062c6d018 | 79 | } |
| gsfan | 0:2f6062c6d018 | 80 | |
| gsfan | 0:2f6062c6d018 | 81 | int RingBuffer::use () { |
| gsfan | 0:2f6062c6d018 | 82 | return size - available() - 1; |
| gsfan | 0:2f6062c6d018 | 83 | } |
| gsfan | 0:2f6062c6d018 | 84 | |
| gsfan | 0:2f6062c6d018 | 85 | void RingBuffer::clear () { |
| gsfan | 0:2f6062c6d018 | 86 | addr_w = 0; |
| gsfan | 0:2f6062c6d018 | 87 | addr_r = 0; |
| gsfan | 0:2f6062c6d018 | 88 | } |