Test program to send MAX!-Messages with a RFM22-Module
Dependencies: RF22 TextLCD TextLCDScroll mbed RF22Max
main.cpp
- Committer:
- charly
- Date:
- 2013-08-20
- Revision:
- 2:941c46d37d7e
- Parent:
- 1:b71f9a293c54
- Child:
- 3:4254b4c3557e
File content as of revision 2:941c46d37d7e:
// Testprogramm for RFM22B with RF22-Library to read ELV MAX! window Shutter-Contacts #include "mbed.h" #include <RF22.h> #include "TextLCDScroll.h" #define lengthof(x) (sizeof(x) / sizeof(*x)) Serial pc(USBTX, USBRX); //TextLCDScroll lcd(p30, p29, p28, p27, p26, p25, TextLCD::LCD16x2); // rs, e, d4-d7 TextLCDScroll lcd(p30, p29, p28, p27, p26, p25, TextLCD::LCD16x2); // rs, e, d4-d7 // mbed LEDs DigitalOut led1(LED1); DigitalOut led2(LED2); DigitalOut led3(LED3); DigitalOut led4(LED4); // Singleton instance of the radio //rf22(PinName slaveSelectPin , PinName mosi, PinName miso, PinName sclk, PinName interrupt ); RF22 rf22(p14,p11,p12,p13,p15); const RF22::ModemConfig config = { // for MAX! protocol .reg_1c = 0x01, .reg_1f = 0x03, .reg_20 = 0x90, .reg_21 = 0x20, .reg_22 = 0x51, .reg_23 = 0xea, .reg_24 = 0x00, .reg_25 = 0x58, /* 2c - 2e are only for OOK */ .reg_2c = 0x00, .reg_2d = 0x00, .reg_2e = 0x00, .reg_58 = 0x80, /* Copied from RF22 defaults */ .reg_69 = 0x60, /* Copied from RF22 defaults */ .reg_6e = 0x08, .reg_6f = 0x31, .reg_70 = 0x24, .reg_71 = RF22_DTMOD_FIFO | RF22_MODTYP_FSK, .reg_72 = 0x1e, }; /* Sync words to send / check for. Don't forget to update RF22_SYNCLEN * below if changing the length of this array. */ const uint8_t sync_words[] = { 0xc6, 0x26, 0xc6, 0x26, }; enum modes {MODE_AUTO, MODE_MANUAL, MODE_TEMPORARY, MODE_BOOST}; const char *mode_str[] = { [MODE_AUTO] = "auto", [MODE_MANUAL] = "manual", [MODE_TEMPORARY] = "temporary", [MODE_BOOST] = "boost" }; char *type_str(uint8_t type) { switch(type) { case 0x00: return "PairPing"; case 0x01: return "PairPong"; case 0x02: return "Ack"; case 0x03: return "TimeInformation"; case 0x10: return "ConfigWeekProfile"; case 0x11: return "ConfigTemperatures"; case 0x12: return "ConfigValve"; case 0x20: return "AddLinkPartner"; case 0x21: return "RemoveLinkPartner"; case 0x22: return "SetGroupId"; case 0x23: return "RemoveGroupId"; case 0x30: return "ShutterContactState"; case 0x40: return "SetTemperature"; case 0x42: return "WallThermostatState"; case 0x43: return "SetComfortTemperature"; case 0x44: return "SetEcoTemperature"; case 0x50: return "PushButtonState"; case 0x60: return "ThermostatState"; case 0x82: return "SetDisplayActualTemperature"; case 0xF1: return "WakeUp"; case 0xF0: return "Reset"; } return "Unknown"; } /* First 255 bytes of PN9 sequence used for data whitening by the CC1101 * chip. The RF22 chip is documented to support the same data whitening * algorithm, but in practice seems to use a different sequence. * * Data was generated using the following python snippet: * import itertools def pn9(state): while True: yield hex(state & 0xff) # The pn9 generator is clocked 8 times while shifting in the # next data byte for i in range(8): state = (state >> 1) + (((state & 1) ^ (state >> 5) & 1) << 8) print(list(itertools.islice(pn9(0x1ff), 255))) */ const uint8_t pn9[] = { 0xff, 0xe1, 0x1d, 0x9a, 0xed, 0x85, 0x33, 0x24, 0xea, 0x7a, 0xd2, 0x39, 0x70, 0x97, 0x57, 0x0a, 0x54, 0x7d, 0x2d, 0xd8, 0x6d, 0x0d, 0xba, 0x8f, 0x67, 0x59, 0xc7, 0xa2, 0xbf, 0x34, 0xca, 0x18, 0x30, 0x53, 0x93, 0xdf, 0x92, 0xec, 0xa7, 0x15, 0x8a, 0xdc, 0xf4, 0x86, 0x55, 0x4e, 0x18, 0x21, 0x40, 0xc4, 0xc4, 0xd5, 0xc6, 0x91, 0x8a, 0xcd, 0xe7, 0xd1, 0x4e, 0x09, 0x32, 0x17, 0xdf, 0x83, 0xff, 0xf0, 0x0e, 0xcd, 0xf6, 0xc2, 0x19, 0x12, 0x75, 0x3d, 0xe9, 0x1c, 0xb8, 0xcb, 0x2b, 0x05, 0xaa, 0xbe, 0x16, 0xec, 0xb6, 0x06, 0xdd, 0xc7, 0xb3, 0xac, 0x63, 0xd1, 0x5f, 0x1a, 0x65, 0x0c, 0x98, 0xa9, 0xc9, 0x6f, 0x49, 0xf6, 0xd3, 0x0a, 0x45, 0x6e, 0x7a, 0xc3, 0x2a, 0x27, 0x8c, 0x10, 0x20, 0x62, 0xe2, 0x6a, 0xe3, 0x48, 0xc5, 0xe6, 0xf3, 0x68, 0xa7, 0x04, 0x99, 0x8b, 0xef, 0xc1, 0x7f, 0x78, 0x87, 0x66, 0x7b, 0xe1, 0x0c, 0x89, 0xba, 0x9e, 0x74, 0x0e, 0xdc, 0xe5, 0x95, 0x02, 0x55, 0x5f, 0x0b, 0x76, 0x5b, 0x83, 0xee, 0xe3, 0x59, 0xd6, 0xb1, 0xe8, 0x2f, 0x8d, 0x32, 0x06, 0xcc, 0xd4, 0xe4, 0xb7, 0x24, 0xfb, 0x69, 0x85, 0x22, 0x37, 0xbd, 0x61, 0x95, 0x13, 0x46, 0x08, 0x10, 0x31, 0x71, 0xb5, 0x71, 0xa4, 0x62, 0xf3, 0x79, 0xb4, 0x53, 0x82, 0xcc, 0xc5, 0xf7, 0xe0, 0x3f, 0xbc, 0x43, 0xb3, 0xbd, 0x70, 0x86, 0x44, 0x5d, 0x4f, 0x3a, 0x07, 0xee, 0xf2, 0x4a, 0x81, 0xaa, 0xaf, 0x05, 0xbb, 0xad, 0x41, 0xf7, 0xf1, 0x2c, 0xeb, 0x58, 0xf4, 0x97, 0x46, 0x19, 0x03, 0x66, 0x6a, 0xf2, 0x5b, 0x92, 0xfd, 0xb4, 0x42, 0x91, 0x9b, 0xde, 0xb0, 0xca, 0x09, 0x23, 0x04, 0x88, 0x98, 0xb8, 0xda, 0x38, 0x52, 0xb1, 0xf9, 0x3c, 0xda, 0x29, 0x41, 0xe6, 0xe2, 0x7b }; /** * CRC code based on example from Texas Instruments DN502, matches * CC1101 implementation */ #define CRC16_POLY 0x8005 uint16_t calc_crc_step(uint8_t crcData, uint16_t crcReg) { uint8_t i; for (i = 0; i < 8; i++) { if (((crcReg & 0x8000) >> 8) ^ (crcData & 0x80)) crcReg = (crcReg << 1) ^ CRC16_POLY; else crcReg = (crcReg << 1); crcData <<= 1; } return crcReg; } // culCalcCRC #define CRC_INIT 0xFFFF uint16_t calc_crc(uint8_t *buf, size_t len) { uint16_t checksum; checksum = CRC_INIT; // Init value for CRC calculation for (size_t i = 0; i < len; i++) checksum = calc_crc_step(buf[i], checksum); return checksum; } void printHex(uint8_t *buf, size_t len, bool nl) { for (size_t i = 0; i < len; i++) { pc.printf("%02X ",buf[i]); } if (nl) pc.printf("\n\r"); } void printUntil(uint8_t *buf) { uint8_t year = buf[1] & 0x3f; uint8_t month = ((buf[0] & 0xE0) >> 4) | (buf[1] >> 7); uint8_t day = buf[0] & 0x1f; /* In 30-minute increments */ uint8_t time = buf[2] & 0x3f; pc.printf("Until: 20"); if (year < 10) pc.printf("0"); pc.printf("%i",year); pc.printf("."); if (month < 10) pc.printf("0"); pc.printf("%i",month); pc.printf("."); if (day < 10) pc.printf("0"); pc.printf("%i",day); pc.printf(" "); if (time < 20) pc.printf("0"); pc.printf("%i",time / 2); if (time % 2) pc.printf(":30"); else pc.printf(":00"); pc.printf("\n\r"); } void max_rx_loop() { uint8_t buf[RF22_MAX_MESSAGE_LEN]; uint8_t len = sizeof(buf); if (rf22.recv(buf, &len)) { pc.printf("Recv: "); pc.printf("len: %i\n\r",len); len = 30; // limit message to 30 Bytes as device receives all 255 Bytes //pc.printf("buf: >%s<\n\r",(char*)buf); printHex(buf, len, true); /* Dewhiten data */ for (int i = 0; i < len; i++) buf[i] ^= pn9[i]; // now read the real length len = buf[0]+3; // 1 length-Byte + 2 CRC pc.printf("len: %i\n\r",len); if (len < 3 || len > lengthof(pn9)) { pc.printf("Packet length too short/long (%i)\n\r",len); return; } pc.printf("dewhiten: "); printHex(buf, len, true); /* Calculate CRC (but don't include the CRC itself) */ uint16_t crc = calc_crc(buf, len - 2); if (buf[len - 1] != (crc & 0xff) || buf[len - 2] != (crc >> 8)) { pc.printf("CRC error\n\r"); return; } /* Don't use the CRC as data */ len -= 2; uint8_t type = buf[3]; #if 1 pc.printf("Message count: "); printHex(buf + 1, 1, true); pc.printf("Flags: "); printHex(buf + 2, 1, true); pc.printf("Packet type: "); printHex(&type, 1, false); pc.printf(" ("); pc.printf(type_str(type)); pc.printf(")\n\r"); pc.printf("Packet from: "); printHex(buf + 4, 3, true); pc.printf("Packet to: "); printHex(buf + 7, 3, true); pc.printf("GroupID: "); printHex(buf + 10, 1, true); pc.printf("Payload: "); printHex(buf + 11, len-11, true); if (type == 0x30 && len >= 11) { //ShutterContactState bool baterry_low = (buf[11] >> 7) & 0x1; bool state = (buf[11]>>1) & 0x1; pc.printf("State: "); if (state) { pc.printf("open\n\r"); lcd.setLine(1,"open "); } else { pc.printf("closed\n\r"); lcd.setLine(1,"closed "); } pc.printf("Battery: "); if (baterry_low) { pc.printf("low\n\r"); } else { pc.printf("good\n\r"); } } /* else if (type == 0x60 && len >= 13) { // ThermostatState uint8_t mode = buf[11] & 0x3; bool dst = (buf[11] >> 2) & 0x1; bool locked = (buf[11] >> 5) & 0x1; bool baterry_low = (buf[11] >> 7) & 0x1; // 0 - 64 uint8_t valve = buf[12]; uint8_t set_temp = buf[13]; pc.printf("Mode: "); pc.printf(mode_str[mode]); pc.printf("Valve pos: %i%",100 * valve / 64); pc.printf("Set temp: %2.1i",set_temp / 2); if (len > 15 && mode != MODE_TEMPORARY) { // In tenths of degrees uint8_t actual_temp = ((buf[14] & 0x1) << 8) + buf[15]; pc.printf("Actual temp: "); pc.printf(actual_temp / 10); pc.printf("."); pc.printf(actual_temp % 10); } if (len > 16 && mode == MODE_TEMPORARY) { printUntil(buf + 14); } } else if (type == 0x40 && len >= 11) { // SetTemperature uint8_t set_temp = buf[11] & 0x3f; uint8_t mode = buf[11] >> 6; pc.printf("Mode: "); pc.printf(mode_str[mode]); pc.print("Set temp: "); pc.printf(set_temp / 2); pc.printf(set_temp % 2 ? ".5" : ".0"); if (len > 14) { printUntil(buf + 12); } } // Print the data int i, j; for (i = 0; i < len; i += 16) { // Hex for (j = 0; j < 16 && i+j < len; j++) { if (buf[i+j] < 16) pc.print("0"); // Sigh, pc.print does not know how to pad hex pc.print(buf[i+j], HEX); pc.print(" "); } // Padding on last block while (j++ < 16) pc.print(" "); pc.print(" "); // ASCII for (j = 0; j < 16 && i+j < len; j++) pc.write(isprint(buf[i+j]) ? buf[i+j] : '.'); pc.println(""); } */ pc.printf("\n\r"); #endif } } int main() { pc.baud(115200); pc.printf("\n\rConnected to mbed\n\r"); char version_str [80] = "RF22-MAX!-V1.1"; lcd.cls(); lcd.setLine(0,version_str); pc.printf("%s\n\r",version_str); pc.printf("Pre-init|"); if (!rf22.init()) pc.printf("RF22 init failed\n\r"); pc.printf("Post-init\n\r"); // try to detect Window-Shutter rf22.setModemRegisters(&config); rf22.setFrequency(868.3, 0.035); /* Disable TX packet control, since the RF22 doesn't do proper * whitening so can't read the length header or CRC. We need RX packet * control so the RF22 actually sends pkvalid interrupts when the * manually set packet length is reached. */ rf22.spiWrite(RF22_REG_30_DATA_ACCESS_CONTROL, RF22_MSBFRST | RF22_ENPACRX); /* No packet headers, 4 sync words, fixed packet length */ rf22.spiWrite(RF22_REG_32_HEADER_CONTROL1, RF22_BCEN_NONE | RF22_HDCH_NONE); rf22.spiWrite(RF22_REG_33_HEADER_CONTROL2, RF22_HDLEN_0 | RF22_FIXPKLEN | RF22_SYNCLEN_4); rf22.setSyncWords(sync_words, lengthof(sync_words)); /* Detect preamble after 4 nibbles */ rf22.spiWrite(RF22_REG_35_PREAMBLE_DETECTION_CONTROL1, (0x4 << 3)); /* Send 8 bytes of preamble */ rf22.setPreambleLength(8); // in nibbles rf22.spiWrite(RF22_REG_3E_PACKET_LENGTH, 20); rf22.setModeRx(); //wait forever and see if interrrupt occurs(led1) while (1) { max_rx_loop(); }; }