Michael 0616cab386
Fixes a problem where setting failsafe values was only possible once after bind and only set values for the first 12 channels. This fix allows setting failsafe values without having to rebind and sets failsafe values correctly for all possible 16 channels. (#695)
Notes for OpenTX/EdgeTX:
This fix doesn't exhibit servo jitter if failsafe mode was left on Custom, however it is still recommended to set failsafe mode back to Receiver after setting failsafe values.
It is still necessary to wait at least 8 seconds switching back from failsafe mode Custom to failsafe mode Receiver as OpenTX/EdgeTX will trigger the data transfer in Custom mode only every 7 seconds.

Bench tested with HoTT receivers GR-16, GR-24pro, GR-32
Flight tested with HoTT receiver GR-24
2022-06-13 14:28:21 +02:00

546 lines
23 KiB
C++

/*
This project is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Multiprotocol is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Multiprotocol. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(HOTT_CC2500_INO)
#include "iface_cc2500.h"
//#define HOTT_FORCE_ID // Force ID of original dump
#define HOTT_TX_PACKET_LEN 50
#define HOTT_RX_PACKET_LEN 22
#define HOTT_PACKET_PERIOD 10000
#define HOTT_NUM_RF_CHANNELS 75
#define HOTT_COARSE 0
enum {
HOTT_START = 0x00,
HOTT_CAL = 0x01,
HOTT_DATA1 = 0x02,
HOTT_DATA2 = 0x03,
HOTT_RX1 = 0x04,
HOTT_RX2 = 0x05,
};
#ifdef HOTT_FW_TELEMETRY
#define HOTT_SENSOR_TYPE 6
#define HOTT_SENSOR_SEARCH_PERIOD 2000
uint8_t HOTT_sensor_cur=0;
uint8_t HOTT_sensor_pages=0;
uint8_t HOTT_sensor_valid=false;
uint8_t HOTT_sensor_ok[HOTT_SENSOR_TYPE];
uint8_t HOTT_sensor_seq=0;
#endif
#define HOTT_FREQ0_VAL 0x6E
// Some important initialization parameters, all others are either default,
// or not important in the context of transmitter
// FIFOTHR 00
// SYNC1 D3
// SYNC0 91
// PKTLEN 32 - Packet length, 50 bytes
// PKTCTRL1 04 - APPEND_STATUS on=RSSI+LQI, all other are receive parameters - irrelevant
// PKTCTRL0 44 - whitening, use FIFO, use CRC, fixed packet length
// ADDR 00
// CHANNR 10
// FSCTRL1 09 - IF
// FSCTRL0 00 - zero freq offset
// FREQ2 5C - synthesizer frequencyfor 26MHz crystal
// FREQ1 6C
// FREQ0 B9
// MDMCFG4 2D -
// MDMCFG3 3B -
// MDMCFG2 73 - disable DC blocking, MSK, no Manchester code, 32 bits sync word
// MDMCFG1 A3 - FEC enable, 4 preamble bytes, CHANSPC_E - 03
// MDMCFG0 AA - CHANSPC_M - AA
// DEVIATN 47 -
// MCSM2 07 -
// MCSM1 00 - always use CCA, go to IDLE when done
// MCSM0 08 - disable autocalibration, PO_TIMEOUT - 64, no pin radio control, no forcing XTAL to stay in SLEEP
// FOCCFG 1D
const PROGMEM uint8_t HOTT_init_values[] = {
/* 00 */ 0x2F, 0x2E, 0x2F, 0x00, 0xD3, 0x91, 0x32, 0x04,
/* 08 */ 0x44, 0x00, 0x00, 0x09, 0x00, 0x5C, 0x6C, HOTT_FREQ0_VAL + HOTT_COARSE,
/* 10 */ 0x2D, 0x3B, 0x73, 0xA3, 0xAA, 0x47, 0x07, 0x00,
/* 18 */ 0x08, 0x1D, 0x1C, 0xC7, 0x09, 0xF0, 0x87, 0x6B,
/* 20 */ 0xF0, 0xB6, 0x10, 0xEA, 0x0A, 0x00, 0x11
};
static void __attribute__((unused)) HOTT_rf_init()
{
CC2500_Strobe(CC2500_SIDLE);
for (uint8_t i = 0; i < 39; ++i)
CC2500_WriteReg(i, pgm_read_byte_near(&HOTT_init_values[i]));
CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
CC2500_SetTxRxMode(TX_EN);
CC2500_SetPower();
}
static void __attribute__((unused)) HOTT_tune_chan()
{
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_0A_CHANNR, (rf_ch_num+1)*3);
CC2500_Strobe(CC2500_SCAL);
}
static void __attribute__((unused)) HOTT_tune_chan_fast()
{
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_0A_CHANNR, (rf_ch_num+1)*3);
CC2500_WriteReg(CC2500_25_FSCAL1, calData[rf_ch_num]);
}
static void __attribute__((unused)) HOTT_tune_freq()
{
if ( prev_option != option )
{
CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
CC2500_WriteReg(CC2500_0F_FREQ0, HOTT_FREQ0_VAL + HOTT_COARSE);
prev_option = option ;
phase = HOTT_START; // Restart the tune process if option is changed to get good tuned values
}
}
const uint8_t PROGMEM HOTT_hop[][HOTT_NUM_RF_CHANNELS]=
{ { 48, 37, 16, 62, 9, 50, 42, 22, 68, 0, 55, 35, 21, 74, 1, 56, 31, 20, 70, 11, 45, 32, 24, 71, 8, 54, 38, 26, 61, 13, 53, 30, 15, 65, 7, 52, 34, 28, 60, 3, 47, 39, 18, 69, 2, 49, 44, 23, 72, 5, 51, 43, 19, 64, 12, 46, 33, 17, 67, 6, 58, 36, 29, 73, 14, 57, 41, 25, 63, 4, 59, 40, 27, 66, 10 },
{ 50, 23, 5, 34, 67, 53, 22, 12, 39, 62, 51, 21, 10, 33, 63, 59, 16, 1, 43, 66, 49, 19, 8, 30, 71, 47, 24, 2, 35, 68, 45, 25, 14, 41, 74, 55, 18, 4, 32, 61, 54, 17, 11, 31, 72, 52, 28, 6, 38, 65, 46, 15, 9, 40, 60, 48, 26, 3, 37, 70, 58, 29, 0, 36, 64, 56, 20, 7, 42, 69, 57, 27, 13, 44, 73 },
{ 73, 51, 39, 18, 9, 64, 56, 34, 16, 12, 66, 58, 36, 25, 11, 61, 47, 40, 15, 8, 71, 50, 43, 20, 6, 62, 54, 42, 19, 3, 63, 46, 44, 29, 14, 72, 49, 33, 22, 5, 69, 57, 30, 21, 10, 70, 45, 35, 26, 7, 65, 59, 31, 28, 1, 67, 48, 32, 24, 0, 60, 55, 41, 17, 2, 74, 52, 38, 27, 4, 68, 53, 37, 23, 13 },
{ 52, 60, 40, 21, 14, 50, 72, 41, 23, 13, 59, 61, 39, 16, 6, 58, 66, 33, 17, 5, 55, 64, 43, 20, 12, 54, 74, 35, 29, 3, 46, 63, 37, 22, 10, 48, 65, 31, 27, 9, 49, 73, 38, 24, 11, 56, 70, 32, 15, 1, 51, 71, 44, 18, 8, 45, 67, 36, 25, 7, 57, 62, 34, 28, 2, 53, 69, 42, 19, 4, 47, 68, 30, 26, 0 },
{ 50, 16, 34, 6, 71, 51, 24, 40, 7, 68, 57, 27, 33, 14, 70, 55, 26, 30, 5, 74, 47, 28, 44, 11, 67, 49, 15, 32, 9, 61, 52, 22, 37, 13, 66, 59, 18, 42, 3, 62, 46, 29, 31, 12, 60, 48, 19, 38, 1, 72, 58, 17, 36, 4, 64, 53, 21, 39, 0, 63, 56, 20, 41, 2, 65, 45, 25, 35, 10, 69, 54, 23, 43, 8, 73 },
{ 55, 38, 12, 62, 23, 52, 44, 3, 66, 18, 54, 36, 10, 74, 16, 56, 42, 9, 70, 17, 58, 33, 5, 69, 20, 50, 40, 1, 63, 24, 53, 37, 13, 65, 15, 48, 34, 4, 61, 22, 57, 31, 6, 64, 26, 46, 35, 11, 72, 21, 47, 30, 7, 68, 29, 45, 32, 8, 60, 19, 49, 43, 2, 67, 27, 51, 39, 0, 71, 28, 59, 41, 14, 73, 25 },
{ 70, 32, 18, 10, 58, 69, 38, 22, 2, 54, 67, 36, 19, 12, 57, 62, 34, 20, 14, 52, 63, 41, 15, 3, 51, 73, 42, 28, 6, 48, 60, 43, 29, 5, 45, 64, 31, 17, 4, 56, 65, 35, 26, 13, 53, 61, 37, 23, 1, 49, 68, 40, 16, 9, 47, 71, 39, 25, 7, 50, 66, 33, 24, 8, 59, 72, 44, 27, 11, 46, 74, 30, 21, 0, 55 },
{ 6, 45, 71, 27, 44, 10, 46, 74, 22, 32, 0, 55, 69, 21, 33, 4, 50, 66, 18, 38, 7, 57, 62, 19, 36, 1, 48, 70, 20, 40, 8, 47, 68, 15, 43, 2, 58, 61, 26, 42, 3, 56, 72, 23, 34, 14, 54, 67, 16, 37, 5, 59, 64, 24, 30, 12, 52, 65, 25, 39, 13, 49, 73, 17, 31, 9, 53, 60, 28, 35, 11, 51, 63, 29, 41 },
{ 31, 65, 50, 20, 13, 37, 66, 45, 23, 5, 32, 69, 54, 19, 7, 39, 74, 52, 27, 1, 42, 64, 53, 22, 4, 43, 70, 58, 16, 3, 40, 71, 57, 17, 0, 35, 63, 56, 18, 9, 44, 72, 51, 21, 6, 33, 67, 46, 25, 11, 30, 73, 55, 15, 8, 36, 62, 48, 24, 10, 41, 60, 49, 29, 14, 34, 61, 47, 26, 2, 38, 68, 59, 28, 12 },
{ 67, 22, 49, 36, 13, 64, 28, 57, 37, 6, 65, 29, 46, 39, 3, 70, 26, 45, 35, 1, 62, 24, 58, 34, 10, 68, 19, 53, 33, 4, 66, 21, 52, 31, 7, 74, 18, 47, 32, 5, 61, 16, 51, 38, 8, 72, 23, 55, 30, 12, 73, 17, 59, 44, 0, 60, 15, 50, 43, 14, 63, 27, 48, 42, 11, 71, 20, 54, 41, 9, 69, 25, 56, 40, 2 },
{ 19, 38, 14, 66, 57, 18, 44, 7, 74, 48, 23, 30, 6, 71, 58, 26, 32, 5, 61, 46, 20, 34, 0, 68, 45, 24, 36, 1, 70, 50, 27, 33, 10, 63, 52, 16, 42, 9, 65, 51, 15, 41, 11, 64, 53, 22, 37, 3, 60, 56, 28, 35, 4, 67, 49, 17, 39, 13, 69, 54, 25, 43, 2, 73, 55, 21, 31, 8, 62, 47, 29, 40, 12, 72, 59 },
{ 4, 52, 64, 28, 44, 14, 46, 74, 16, 32, 11, 50, 68, 27, 36, 0, 47, 70, 26, 34, 13, 57, 61, 18, 38, 6, 56, 62, 19, 40, 5, 58, 67, 17, 31, 12, 54, 63, 22, 33, 3, 53, 72, 21, 41, 10, 48, 66, 15, 35, 7, 45, 60, 20, 37, 9, 51, 69, 25, 42, 2, 59, 71, 24, 39, 1, 55, 65, 23, 30, 8, 49, 73, 29, 43 },
{ 44, 66, 19, 1, 56, 35, 62, 20, 4, 54, 39, 70, 24, 5, 55, 31, 74, 26, 12, 58, 32, 60, 17, 10, 45, 37, 63, 22, 3, 50, 33, 64, 16, 7, 51, 34, 61, 21, 8, 48, 38, 68, 29, 0, 46, 36, 72, 28, 14, 49, 42, 69, 25, 6, 57, 43, 65, 18, 2, 52, 30, 71, 23, 13, 47, 41, 67, 15, 9, 53, 40, 73, 27, 11, 59 },
{ 12, 16, 36, 46, 69, 6, 20, 44, 58, 62, 11, 19, 34, 48, 71, 1, 18, 42, 50, 74, 3, 25, 31, 47, 65, 0, 24, 33, 45, 72, 2, 23, 35, 56, 64, 10, 22, 38, 49, 63, 7, 26, 37, 51, 70, 14, 21, 30, 53, 67, 5, 15, 40, 52, 66, 9, 17, 39, 55, 60, 13, 27, 41, 54, 73, 4, 28, 32, 57, 61, 8, 29, 43, 59, 68 },
{ 63, 42, 18, 2, 57, 71, 34, 22, 10, 48, 67, 36, 25, 4, 46, 60, 31, 28, 6, 47, 74, 37, 15, 0, 55, 65, 32, 24, 12, 56, 66, 40, 27, 14, 52, 62, 38, 19, 3, 50, 73, 33, 29, 11, 53, 61, 35, 16, 7, 58, 72, 41, 26, 5, 59, 69, 30, 20, 9, 51, 68, 44, 23, 1, 49, 70, 39, 17, 8, 54, 64, 43, 21, 13, 45 },
{ 52, 1, 71, 17, 36, 47, 7, 64, 26, 32, 53, 5, 60, 20, 42, 57, 2, 66, 18, 34, 56, 4, 63, 24, 35, 46, 13, 72, 22, 30, 48, 0, 67, 21, 39, 50, 3, 74, 16, 31, 59, 14, 61, 23, 37, 45, 6, 65, 19, 44, 51, 11, 62, 27, 41, 55, 9, 68, 15, 38, 58, 8, 70, 29, 40, 54, 10, 69, 28, 33, 49, 12, 73, 25, 43 }
};
const uint16_t PROGMEM HOTT_hop_val[] = { 0xC06B, 0xC34A, 0xDB24, 0x8E09, 0x272E, 0x217F, 0x155B, 0xEDE8, 0x1D31, 0x0986, 0x56F7, 0x6454, 0xC42D, 0x01D2, 0xC253, 0x1180 };
static void __attribute__((unused)) HOTT_TXID_init()
{
packet[0] = pgm_read_word_near( &HOTT_hop_val[num_ch] );
packet[1] = pgm_read_word_near( &HOTT_hop_val[num_ch] )>>8;
for(uint8_t i=0; i<HOTT_NUM_RF_CHANNELS; i++)
hopping_frequency[i]=pgm_read_byte_near( &HOTT_hop[num_ch][i] );
#ifdef HOTT_FORCE_ID
memcpy(rx_tx_addr,"\x7C\x94\x00\x0D\x50",5); //TX1
memcpy(rx_tx_addr,"\xEA\x4D\x00\x01\x50",5); //TX2
#endif
memset(&packet[30],0xFF,9);
packet[39]=0x07; // unknown and constant
if(IS_BIND_IN_PROGRESS)
{
memset(&packet[40],0xFA,5);
memcpy(&packet[45],rx_tx_addr,5);
}
else
{
memcpy(&packet[40],rx_tx_addr,5);
uint16_t addr=HOTT_EEPROM_OFFSET+RX_num*5;
debug("RXID: ");
for(uint8_t i=0;i<5;i++)
{
packet[45+i]=eeprom_read_byte((EE_ADDR)(addr+i));
debug(" %02X",packet[45+i]);
}
debugln("");
}
}
static void __attribute__((unused)) HOTT_prep_data_packet() {
static uint8_t upper = 0; // toggles between sending channels 1..8,9..12 and 1..8,13..16
packet[2] = hopping_frequency_no; // send next frequency to be used
packet[3] = upper; // indicate upper or lower channels (only supporting 16 channels)
#ifdef FAILSAFE_ENABLE
static uint8_t failsafe_count = 0; // failsafe packet state machine (need to send two packets)
if(IS_FAILSAFE_VALUES_on && IS_BIND_DONE) { // if TX wants to send failsafe data and RX is connected
failsafe_count++; // prepare to send next packet
if(failsafe_count >= 3) { // done sending two failsafe channel data packets
FAILSAFE_VALUES_off;
failsafe_count = 0;
}
}
else
failsafe_count = 0;
#endif
// Channels value are PPM*2, -100%=1100µs, +100%=1900µs, order TAER
//
// Note: failsafe packets are differnt to normal operation packets
// normal operation toggles between sending channels 1..8,9..12 and 1..8,13..16 using bit0 as high/low indicator in packet[3]
// while failsafe packets send channels 1..12, 13..24 (and probably 25..32) using bit0 in packet[3] as packet type indicator
// packet[3] = 0x40 -> failsafe packet with data for channels 1..12
// packet[3] = 0x41 -> failsafe packet with data for channels 13..24
//
uint16_t val;
for(uint8_t i = 0 ; i < 12*2 ; i += 2) { // working 12 channels (using 2 bytes per channel)
uint8_t chIndex = i >> 1 ; // normal operation channel number
uint8_t fschIndex = chIndex; // linear channel number for failsafe
if(upper && chIndex >= 8) chIndex += 4; // for normal operation toggle between channels 1..8,9..12 and 1..8,13..16
val = Channel_data[chIndex]; // get normal operation channel data
val = (((val << 2) + val) >> 2)+ 860*2; // convert channel data 0..2047 to 1720..4278 <-> -125%<->+125%
// val = (val*5/4+860*2)
#ifdef FAILSAFE_ENABLE
if(failsafe_count == 1 || failsafe_count == 2) {// failsafe data needs to be sent to RX
uint16_t fs = 0x8000; // default failsafe mode is hold
if(failsafe_count == 1) { // send fail safe packet containing channels 1..12
packet[3] = 0x40; // indicate packet has failsafe values for channels 1..12
fs = Failsafe_data[fschIndex]; // get failsafe channel data
} else { // send fail safe packet containing channels 13..24
packet[3] = 0x41; // indicate packet has failsafe values for channels 13..24
if(fschIndex < 4) // we only work 16 channels so send channels 13..16, rest default
fs = Failsafe_data[fschIndex+12]; // get failsafe channel data 13..16
}
if( fs == FAILSAFE_CHANNEL_HOLD || // treat HOLD and NOPULSES as channel hold
fs == FAILSAFE_CHANNEL_NOPULSES)
val = 0x8000; // set channel failsafe mode hold flag
else {
val = (((fs << 2) + fs) >> 2) +860*2; // convert channel data 0..2047 to 1720..4278 <-> -125%<->+125%
val |= 0x4000; // set channel failsafe mode position flag
}
}
#endif
packet[i + 4] = val; // first channel data at packet[4] and packet[5]
packet[i + 4+1] = val >> 8;
}
upper ^= 0x01; // toggle to upper and lower channels
packet[28] = 0x80; // no sensor
packet[29] = 0x02; // 0x02 when bind starts then when RX replies cycle in sequence 0x1A/22/2A/0A/12, 0x02 during normal packets, 0x01->text config menu, 0x0A->no more RX telemetry
#ifdef HOTT_FW_TELEMETRY
if(IS_BIND_DONE)
{
static uint8_t prev_SerialRX_val=0;
if(HoTT_SerialRX)
{//Text mode
uint8_t sensor=HoTT_SerialRX_val&0xF0;
if((sensor&0x80) && sensor!=0xF0 && (HoTT_SerialRX_val&0x0F) >= 0x07)
{//Valid Text query
if(sensor==0x80) HoTT_SerialRX_val&=0x0F; // RX only
if(prev_SerialRX_val!=HoTT_SerialRX_val)
{
prev_SerialRX_val=HoTT_SerialRX_val;
packet[28] = HoTT_SerialRX_val; // send the button being pressed only once
}
else
packet[28] = HoTT_SerialRX_val | 0x0F; // no button pressed
}
else
packet[28] = 0x0F; // RX, no button pressed
if(sub_protocol == HOTT_SYNC)
packet[29] = ((HOTT_sensor_seq+1)<<3) | 1; // Telemetry packet sequence
else
packet[29] = 0x01; // 0x01->Text config menu
}
else
{
packet[28] = 0x89+HOTT_sensor_cur; // 0x89/8A/8B/8C/8D/8E during normal packets
if(sub_protocol == HOTT_SYNC)
packet[29] = ((HOTT_sensor_seq+1)<<3) | 2; // Telemetry packet sequence
}
//debugln("28=%02X,29=%02X",packet[28],packet[29]);
}
#endif
CC2500_WriteReg(CC2500_06_PKTLEN, HOTT_TX_PACKET_LEN);
CC2500_WriteRegisterMulti(CC2500_3F_TXFIFO, packet, HOTT_TX_PACKET_LEN);
#if 0
debug("RF:%02X P:",rf_ch_num);
for(uint8_t i=0;i<HOTT_TX_PACKET_LEN;i++)
debug(" %02X",packet[i]);
debugln("");
#endif
hopping_frequency_no++;
hopping_frequency_no %= HOTT_NUM_RF_CHANNELS;
rf_ch_num=hopping_frequency[hopping_frequency_no];
}
uint16_t HOTT_callback()
{
switch(phase)
{
case HOTT_START:
rf_ch_num = 0;
HOTT_tune_chan();
phase = HOTT_CAL;
return 2000;
case HOTT_CAL:
calData[rf_ch_num]=CC2500_ReadReg(CC2500_25_FSCAL1);
if (++rf_ch_num < HOTT_NUM_RF_CHANNELS)
HOTT_tune_chan();
else
{
hopping_frequency_no = 0;
rf_ch_num=hopping_frequency[hopping_frequency_no];
counter = 0;
CC2500_SetTxRxMode(RX_EN);
phase = HOTT_DATA1;
}
return 2000;
/* Work cycle: 10ms */
case HOTT_DATA1:
//Set RF freq, setup LBT and prep packet
#ifdef MULTI_SYNC
telemetry_set_input_sync(HOTT_PACKET_PERIOD);
#endif
//Clear all
CC2500_Strobe(CC2500_SIDLE);
CC2500_Strobe(CC2500_SNOP);
CC2500_Strobe(CC2500_SFTX);
CC2500_Strobe(CC2500_SFRX);
CC2500_WriteReg(CC2500_04_SYNC1, 0xD3);
CC2500_WriteReg(CC2500_05_SYNC0, 0x91);
//Set RF freq
HOTT_tune_freq();
HOTT_tune_chan_fast();
//Setup LBT
CC2500_WriteReg(CC2500_1B_AGCCTRL2, 0xFF);
CC2500_WriteReg(CC2500_1C_AGCCTRL1, 0x0C);
CC2500_Strobe(CC2500_SRX);
//Prep packet
HOTT_prep_data_packet();
//Listen
CC2500_WriteReg(CC2500_17_MCSM1, 0x10); //??
CC2500_WriteReg(CC2500_18_MCSM0, 0x18); //??
CC2500_Strobe(CC2500_SRX); //??
phase++; //HOTT_DATA2
return 1095;
case HOTT_DATA2:
//LBT
if((CC2500_ReadReg(CC2500_38_PKTSTATUS | CC2500_READ_BURST)&0x10)==0)
{ //Channel is busy
LBT_POWER_on; // Reduce to low power before transmitting
debugln("Busy %d",rf_ch_num);
}
CC2500_WriteReg(CC2500_17_MCSM1, 0x00); //??
CC2500_WriteReg(CC2500_18_MCSM0, 0x08); //??
CC2500_SetPower();
//Send packet
CC2500_SetTxRxMode(TX_EN);
CC2500_Strobe(CC2500_STX);
phase++; //HOTT_RX1
return 3880;
case HOTT_RX1:
//Clear all
CC2500_Strobe(CC2500_SIDLE);
CC2500_Strobe(CC2500_SFTX);
CC2500_Strobe(CC2500_SFRX);
//RX
if(packet[29] & 0xF8)
{// Sync telemetry
CC2500_WriteReg(CC2500_04_SYNC1, 0x2C);
CC2500_WriteReg(CC2500_05_SYNC0, 0x6E);
}
CC2500_SetTxRxMode(RX_EN);
CC2500_WriteReg(CC2500_1B_AGCCTRL2, 0xC7);
CC2500_WriteReg(CC2500_1C_AGCCTRL1, 0x09);
CC2500_WriteReg(CC2500_06_PKTLEN, HOTT_RX_PACKET_LEN);
CC2500_Strobe(CC2500_SRX);
phase++; //HOTT_RX2
return 4025;
case HOTT_RX2:
//Telemetry
len = CC2500_ReadReg(CC2500_3B_RXBYTES | CC2500_READ_BURST) & 0x7F;
if (len==HOTT_RX_PACKET_LEN+2)
{
CC2500_ReadData(packet_in, len);
if((packet_in[HOTT_RX_PACKET_LEN+1]&0x80) && memcmp(rx_tx_addr,packet_in,5)==0)
{ // CRC OK and TX ID matches
if(IS_BIND_IN_PROGRESS)
{
//GR-16: D4 20 F2 E6 F6 31 BD 01 00 90 00 FF 03 00 9E 1B 00 00 00 00 00 00
//GR-12L: D4 20 F2 E6 F6 6E EE 01 00 B1 00 FF 03 00 0E 08 10 00 02 00 00 00
//Vector: D4 20 F2 E6 F6 00 00 3A 01 A1 00 00 1A 24 35 1A 00 24 00 00 00 1A
// -----TXID----- -----RXID----- ---------------Unknown-------------
debug("B:");
for(uint8_t i=0;i<HOTT_RX_PACKET_LEN;i++)
debug(" %02X", packet_in[i]);
debugln("");
uint16_t addr=HOTT_EEPROM_OFFSET+RX_num*5;
for(uint8_t i=0; i<5; i++)
eeprom_write_byte((EE_ADDR)(addr+i),packet_in[5+i]);
BIND_DONE;
HOTT_TXID_init();
}
#ifdef HOTT_FW_TELEMETRY
else
{ //Telemetry
// [0..4] = TXID
// [5..9] = RXID
// [10] = holds warnings issued by hott devices
// [11] = telmetry pages. For sensors 0x00 to 0x04, for config mennu 0x00 to 0x12.
// Normal telem page 0 = 0x55, 0x32, 0x38, 0x55, 0x64, 0x32, 0xD0, 0x07, 0x00, 0x55
// Page 0 [12] = [21] = [15]
// Page 0 [13] = RX_Voltage Cur*10 in V
// Page 0 [14] = Temperature-20 in °C
// Page 0 [15] = RX_RSSI CC2500 formated (a<128:a/2-71dBm, a>=128:(a-256)/2-71dBm)
// Page 0 [16] = RX_LQI in %
// Page 0 [17] = RX_Voltage Min*10 in V
// Page 0 [18,19] = [19]<<8+[18]=max lost packet time in ms, max value seems 2s=0x7D0
// Page 0 [20] = rx events
//
// Config menu consists of the different telem pages put all together
// Page X [12] = seems like all the telem pages with the same value are going together to make the full config menu text. Seen so far 'a', 'b', 'c', 'd'
// Page X [13..21] = 9 ascii chars to be displayed, char is highlighted when ascii|0x80
// Screen display is 21 characters large which means that once the first 21 chars are filled go to the begining of the next line
// Menu commands are sent through TX packets:
// packet[28]= 0xXF=>no key press, 0xXD=>down, 0xXB=>up, 0xX9=>enter, 0xXE=>right, 0xX7=>left with X=0 or D
// packet[29]= 0xX1/0xX9 with X=0 or X counting 0,1,1,2,2,..,9,9
// Reduce telemetry to 14 bytes
packet_in[0]= packet_in[HOTT_RX_PACKET_LEN];
packet_in[1]= TX_LQI;
uint8_t hott_warnings = packet_in[10]; // save warnings from hott devices
bool send_telem=true;
HOTT_sensor_seq++; // Increment RX sequence counter
if(packet[29] & 1)
{ //Text mode
HOTT_sensor_seq %= 19; // 19 pages in Text mode
HOTT_sensor_pages = 0;
HOTT_sensor_valid = false;
packet_in[10] = 0x80; // Marking telem Text mode
packet_in[12] = 0;
for(uint8_t i=0; i<HOTT_SENSOR_TYPE;i++)
packet_in[12] |= HOTT_sensor_ok[i]<<i; // Send detected sensors
}
else
{ //Binary sensor
HOTT_sensor_seq %= 5; // 5 pages in binary mode per sensor
if(state==0 && HOTT_sensor_ok[0]==false && HOTT_sensor_ok[1]==false && HOTT_sensor_ok[2]==false && HOTT_sensor_ok[3]==false && HOTT_sensor_ok[4]==false && HOTT_sensor_ok[5]==false)
HOTT_sensor_seq=0; // No sensors always ask page 0
if(state)
state--;
if( packet_in[11]==1 ) // Page 1
{
if( packet_in[12] == (HOTT_sensor_cur+9)<<4 )
{ //Requested sensor is sending: 0x90/A0/B0/C0/D0/E0
HOTT_sensor_pages = 0; // Sensor first page received
HOTT_sensor_valid = true; // Data from the expected sensor is being received
HOTT_sensor_ok[(packet_in[12]>>4)-9]=true;
}
else
{
HOTT_sensor_valid = false;
HOTT_sensor_pages = 0x1E; // Switch to next sensor
}
}
if(packet_in[11])
{ //Page != 0
if(HOTT_sensor_valid) // Valid
{
packet_in[10] = HOTT_sensor_cur+9; // Mark telem with sensor ID
HOTT_sensor_pages |= 1<<packet_in[11]; // Page received
}
else
send_telem=false; // Do not send
}
else
packet_in[10]=0; // Mark telem with sensor 0=RX
}
debug("T%d=",send_telem);
for(uint8_t i=10;i < HOTT_RX_PACKET_LEN; i++)
{
packet_in[i-8]=packet_in[i];
debug(" %02X",packet_in[i]);
}
packet_in[14] = hott_warnings; // restore saved warnings from hott devices
debugln("");
if(send_telem)
telemetry_link=2;
if((HOTT_sensor_pages&0x1E) == 0x1E) // All 4 pages received from the sensor
{ //Next sensor
uint8_t loop=0;
do
{
HOTT_sensor_cur++; // Switch to next sensor
HOTT_sensor_cur %= HOTT_SENSOR_TYPE;
loop++;
}
while(HOTT_sensor_ok[HOTT_sensor_cur]==false && loop<HOTT_SENSOR_TYPE+1 && state==0);
HOTT_sensor_valid=false;
HOTT_sensor_pages=0;
HOTT_sensor_seq=0;
debugln("Sensor:%02X",HOTT_sensor_cur+9);
}
}
pps_counter++;
#endif
}
}
#ifdef HOTT_FW_TELEMETRY
packet_count++;
if(packet_count>=100)
{
TX_LQI=pps_counter;
if(pps_counter==0)
{ // lost connection with RX, power cycle? research sensors again.
HOTT_sensor_cur=3;
HOTT_sensor_seq=0;
HOTT_sensor_valid=false;
for(uint8_t i=0; i<HOTT_SENSOR_TYPE;i++)
HOTT_sensor_ok[i]=false; // no sensors detected
state=HOTT_SENSOR_SEARCH_PERIOD;
}
pps_counter=packet_count=0;
}
#endif
phase=HOTT_DATA1;
return 1000;
}
return 0;
}
void HOTT_init()
{
num_ch=random(0xfefefefe)%16;
HOTT_TXID_init();
HOTT_rf_init();
#ifdef HOTT_FW_TELEMETRY
HoTT_SerialRX_val=0;
HoTT_SerialRX=false;
HOTT_sensor_cur=3;
HOTT_sensor_pages=0;
HOTT_sensor_valid=false;
HOTT_sensor_seq=0;
for(uint8_t i=0; i<HOTT_SENSOR_TYPE;i++)
HOTT_sensor_ok[i]=false; // no sensors detected
packet_count=0;
state=HOTT_SENSOR_SEARCH_PERIOD;
#endif
phase = HOTT_START;
}
#endif