Suga koubou
DMX interface (DMX in/out, Art-Net in/out, DMX patch) http://mbed.org/users/okini3939/notebook/dmx-platform/
Dependencies: ChaNFSSD EthernetNetIf mbed ConfigFile ChaNFS DmxArtNet
NEC950MHz.cpp@0:41b699bbda83, 2012-03-01 (annotated)
- Committer:
- okini3939
- Date:
- Thu Mar 01 01:40:07 2012 +0000
- Revision:
- 0:41b699bbda83
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| okini3939 | 0:41b699bbda83 | 1 | /* |
| okini3939 | 0:41b699bbda83 | 2 | * NEC 950MHz RF module |
| okini3939 | 0:41b699bbda83 | 3 | * H001-000003-001 |
| okini3939 | 0:41b699bbda83 | 4 | */ |
| okini3939 | 0:41b699bbda83 | 5 | |
| okini3939 | 0:41b699bbda83 | 6 | #include "mbed.h" |
| okini3939 | 0:41b699bbda83 | 7 | #include "NEC950MHz.h" |
| okini3939 | 0:41b699bbda83 | 8 | #include "dbg.h" |
| okini3939 | 0:41b699bbda83 | 9 | #include <string.h> |
| okini3939 | 0:41b699bbda83 | 10 | |
| okini3939 | 0:41b699bbda83 | 11 | #define RXD p10 |
| okini3939 | 0:41b699bbda83 | 12 | #define TXD p9 |
| okini3939 | 0:41b699bbda83 | 13 | #define RST p12 |
| okini3939 | 0:41b699bbda83 | 14 | |
| okini3939 | 0:41b699bbda83 | 15 | |
| okini3939 | 0:41b699bbda83 | 16 | // host to network short |
| okini3939 | 0:41b699bbda83 | 17 | #define htons( x ) ( (( (x) << 8 ) & 0xFF00) | (( (x) >> 8 ) & 0x00FF) ) |
| okini3939 | 0:41b699bbda83 | 18 | #define ntohs( x ) htons(x) |
| okini3939 | 0:41b699bbda83 | 19 | // host to network long |
| okini3939 | 0:41b699bbda83 | 20 | #define htonl( x ) ( (( (x) << 24 ) & 0xFF000000) \ |
| okini3939 | 0:41b699bbda83 | 21 | | (( (x) << 8 ) & 0x00FF0000) \ |
| okini3939 | 0:41b699bbda83 | 22 | | (( (x) >> 8 ) & 0x0000FF00) \ |
| okini3939 | 0:41b699bbda83 | 23 | | (( (x) >> 24 ) & 0x000000FF) ) |
| okini3939 | 0:41b699bbda83 | 24 | #define ntohl( x ) htonl(x) |
| okini3939 | 0:41b699bbda83 | 25 | |
| okini3939 | 0:41b699bbda83 | 26 | |
| okini3939 | 0:41b699bbda83 | 27 | static Serial rf(TXD, RXD); |
| okini3939 | 0:41b699bbda83 | 28 | static DigitalOut rst(RST); |
| okini3939 | 0:41b699bbda83 | 29 | |
| okini3939 | 0:41b699bbda83 | 30 | int send_rf (int msgid, unsigned long dest, char *param, int len) { |
| okini3939 | 0:41b699bbda83 | 31 | int i; |
| okini3939 | 0:41b699bbda83 | 32 | static int msgno = 0; |
| okini3939 | 0:41b699bbda83 | 33 | struct ifMessage ifmsg; |
| okini3939 | 0:41b699bbda83 | 34 | unsigned char *buf = (unsigned char *)&ifmsg; |
| okini3939 | 0:41b699bbda83 | 35 | |
| okini3939 | 0:41b699bbda83 | 36 | if (len > 240) len = 240; |
| okini3939 | 0:41b699bbda83 | 37 | msgno ++; |
| okini3939 | 0:41b699bbda83 | 38 | ifmsg.start = htons(0x0f5a); |
| okini3939 | 0:41b699bbda83 | 39 | ifmsg.length = 13 + len; |
| okini3939 | 0:41b699bbda83 | 40 | ifmsg.msgid = msgid; |
| okini3939 | 0:41b699bbda83 | 41 | ifmsg.msgno = msgno; |
| okini3939 | 0:41b699bbda83 | 42 | ifmsg.dstid = htonl(dest); |
| okini3939 | 0:41b699bbda83 | 43 | ifmsg.srcid = htonl(0xffffffff); |
| okini3939 | 0:41b699bbda83 | 44 | memcpy(ifmsg.parameter, param, len); |
| okini3939 | 0:41b699bbda83 | 45 | DBG("send_rf %d / %d\r\n", ifmsg.length, len); |
| okini3939 | 0:41b699bbda83 | 46 | |
| okini3939 | 0:41b699bbda83 | 47 | for (i = 0; i < ifmsg.length; i ++) { |
| okini3939 | 0:41b699bbda83 | 48 | rf.putc(buf[i]); |
| okini3939 | 0:41b699bbda83 | 49 | } |
| okini3939 | 0:41b699bbda83 | 50 | |
| okini3939 | 0:41b699bbda83 | 51 | return ifmsg.msgno; |
| okini3939 | 0:41b699bbda83 | 52 | } |
| okini3939 | 0:41b699bbda83 | 53 | |
| okini3939 | 0:41b699bbda83 | 54 | int read_rf (struct ifMessage *ifmsg) { |
| okini3939 | 0:41b699bbda83 | 55 | Timer timeout; |
| okini3939 | 0:41b699bbda83 | 56 | int i = 0, len = 0; |
| okini3939 | 0:41b699bbda83 | 57 | unsigned char buf[sizeof(struct ifMessage)]; |
| okini3939 | 0:41b699bbda83 | 58 | |
| okini3939 | 0:41b699bbda83 | 59 | timeout.start(); |
| okini3939 | 0:41b699bbda83 | 60 | while (timeout.read_ms() < TIMEOUT) { |
| okini3939 | 0:41b699bbda83 | 61 | if (rf.readable()) { |
| okini3939 | 0:41b699bbda83 | 62 | buf[i] = rf.getc(); |
| okini3939 | 0:41b699bbda83 | 63 | if (i == 0 && buf[i] == 0x0f) { |
| okini3939 | 0:41b699bbda83 | 64 | i ++; |
| okini3939 | 0:41b699bbda83 | 65 | } else |
| okini3939 | 0:41b699bbda83 | 66 | if (i == 1 && buf[i] == 0x5a) { |
| okini3939 | 0:41b699bbda83 | 67 | i ++; |
| okini3939 | 0:41b699bbda83 | 68 | } else |
| okini3939 | 0:41b699bbda83 | 69 | if (i == 2) { |
| okini3939 | 0:41b699bbda83 | 70 | len = buf[i]; |
| okini3939 | 0:41b699bbda83 | 71 | i ++; |
| okini3939 | 0:41b699bbda83 | 72 | } else |
| okini3939 | 0:41b699bbda83 | 73 | if (i >= 3) { |
| okini3939 | 0:41b699bbda83 | 74 | i ++; |
| okini3939 | 0:41b699bbda83 | 75 | if (i >= len || i >= sizeof(buf)) break; |
| okini3939 | 0:41b699bbda83 | 76 | } |
| okini3939 | 0:41b699bbda83 | 77 | timeout.reset(); |
| okini3939 | 0:41b699bbda83 | 78 | } |
| okini3939 | 0:41b699bbda83 | 79 | } |
| okini3939 | 0:41b699bbda83 | 80 | timeout.stop(); |
| okini3939 | 0:41b699bbda83 | 81 | |
| okini3939 | 0:41b699bbda83 | 82 | if (len) { |
| okini3939 | 0:41b699bbda83 | 83 | DBG("read_rf %d / %d\r\n", i, len); |
| okini3939 | 0:41b699bbda83 | 84 | memcpy(ifmsg, buf, len); |
| okini3939 | 0:41b699bbda83 | 85 | } |
| okini3939 | 0:41b699bbda83 | 86 | return len; |
| okini3939 | 0:41b699bbda83 | 87 | } |
| okini3939 | 0:41b699bbda83 | 88 | |
| okini3939 | 0:41b699bbda83 | 89 | int init_rf (int ch) { |
| okini3939 | 0:41b699bbda83 | 90 | int no; |
| okini3939 | 0:41b699bbda83 | 91 | struct ifMessage ifmsg; |
| okini3939 | 0:41b699bbda83 | 92 | // high power, 100kbps, retry 0 |
| okini3939 | 0:41b699bbda83 | 93 | char rfconf[] = {POWER_HIGH, ch, BAUD_100k, 1, 0, UART_115200, 1, 0xff, 0xff, |
| okini3939 | 0:41b699bbda83 | 94 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| okini3939 | 0:41b699bbda83 | 95 | 0x00, 0x00, 0x83, 0x41}; |
| okini3939 | 0:41b699bbda83 | 96 | |
| okini3939 | 0:41b699bbda83 | 97 | rf.baud(38400); |
| okini3939 | 0:41b699bbda83 | 98 | |
| okini3939 | 0:41b699bbda83 | 99 | rst = 0; // reset |
| okini3939 | 0:41b699bbda83 | 100 | wait_ms(50); |
| okini3939 | 0:41b699bbda83 | 101 | rst = 1; |
| okini3939 | 0:41b699bbda83 | 102 | wait_ms(100); |
| okini3939 | 0:41b699bbda83 | 103 | |
| okini3939 | 0:41b699bbda83 | 104 | no = send_rf(MSGID_WRITE_CONFIG, 0xffffffff, rfconf, sizeof(rfconf)); |
| okini3939 | 0:41b699bbda83 | 105 | DBG("rfconf %d\r\n", no); |
| okini3939 | 0:41b699bbda83 | 106 | // responce |
| okini3939 | 0:41b699bbda83 | 107 | if (! read_rf(&ifmsg) || ifmsg.msgid != MSGID_ACK || ifmsg.msgno != no) { |
| okini3939 | 0:41b699bbda83 | 108 | return -1; |
| okini3939 | 0:41b699bbda83 | 109 | } |
| okini3939 | 0:41b699bbda83 | 110 | |
| okini3939 | 0:41b699bbda83 | 111 | rf.baud(115200); |
| okini3939 | 0:41b699bbda83 | 112 | |
| okini3939 | 0:41b699bbda83 | 113 | return 0; |
| okini3939 | 0:41b699bbda83 | 114 | } |