Quick hack to make NSX-39 (Poke-Miku) USB MIDI device to speak "mbed" from mbed which acts as an USB host.
Dependencies: FatFileSystem mbed
Fork of MIDI_BlueUSB by
Description of the project
This is quick hack to control Poke-miku (NSX-39) from mbed. The mbed acts as an USB host and controls USB MIDI device NSX-39. It speaks "mbed" if you send "s¥n" from virtual USB serial (connected to PC or Mac) or push SW connected to p21. It plays MIDI file "test.mid" on local file-system if you push SW connected to p22. You can find files that I have tested at the bottom. The standard MIDI file support is still preliminary. See TestShell.cpp for the hack. This program is derived from MIDI_BlueUSB (http://mbed.org/users/radiojunkbox/code/MIDI_BlueUSB/) by Radio Junk Box.
ポケミク(NSX-39)を無改造のままmbedから鳴らせるようにしてみました。mbedがUSB hostになって、USB MIDIデバイスのポケミクを鳴らします。mbedのバーチャルシリアル(USBシリアル)にPCからs\nを送るか、p21につないだスイッチを押すとmbedとしゃべります。p22につないだスイッチを押すと、ローカルファイルシステム(.binと同じ場所)に保存した test.mid を再生します。試したファイルは下にある test1.mid と test2.mid です。MIDIファイルのサポートはまだまだ完全とはいえません。
tested MIDI files
Video: Poke-miku speaks `mbed'
Diff: main.cpp
- Revision:
- 0:79620c558b0c
- Child:
- 1:892f8922bdc4
diff -r 000000000000 -r 79620c558b0c main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri May 11 10:05:40 2012 +0000 @@ -0,0 +1,127 @@ +/* +Copyright (c) 2010 Peter Barrett + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +/* +May 11 2012 RadioJunkBox : added MIDI USB support +*/ + +#include "mbed.h" +#include "USBHost.h" +#include "Utils.h" +#include "FATFileSystem.h" + +int MassStorage_ReadCapacity(int device, u32* blockCount, u32* blockSize); +int MassStorage_Read(int device, u32 blockAddr, u32 blockCount, u8* dst, u32 blockSize); +int MassStorage_Write(int device, u32 blockAddr, u32 blockCount, u8* dst, u32 blockSize); + +class USBFileSystem : public FATFileSystem +{ + int _device; + u32 _blockSize; + u32 _blockCount; + +public: + USBFileSystem() : FATFileSystem("usb"),_device(0),_blockSize(0),_blockCount(0) + { + } + + void SetDevice(int device) + { + _device = device; + } + + virtual int disk_initialize() + { + return MassStorage_ReadCapacity(_device,&_blockCount,&_blockSize); + } + + virtual int disk_write(const char *buffer, int block_number) + { + return MassStorage_Write(_device,block_number,1,(u8*)buffer,_blockSize); + } + + virtual int disk_read(char *buffer, int block_number) + { + return MassStorage_Read(_device,block_number,1,(u8*)buffer,_blockSize); + } + + virtual int disk_sectors() + { + return _blockCount; + } +}; + +void DumpFS(int depth, int count) +{ + DIR *d = opendir("/usb"); + if (!d) + { + printf("USB file system borked\n"); + return; + } + + printf("\nDumping root dir\n"); + struct dirent *p; + for(;;) + { + p = readdir(d); + if (!p) + break; + int len = sizeof( dirent); + printf("%s %d\n", p->d_name, len); + } + closedir(d); +} + +int OnDiskInsert(int device) +{ + USBFileSystem fs; + fs.SetDevice(device); + DumpFS(0,0); + return 0; +} + +/* + Simple test shell to exercise mouse,keyboard,mass storage and hubs. + Add 2 15k pulldown resistors between D+/D- and ground, attach a usb socket and have at it. +*/ + +Serial pc(USBTX, USBRX); +int GetConsoleChar() +{ + if (!pc.readable()) + return -1; + char c = pc.getc(); + pc.putc(c); // echo + return c; +} + +void TestShell(); +void InitSerialMIDI(); // Added by RadioJunkBox + +int main() +{ +// pc.baud(460800); + printf("BlueUSB\nNow get a bunch of usb or bluetooth things and plug them in\n"); + InitSerialMIDI(); // Added by RadioJunkBox + TestShell(); +}