gomaomao/DIY-Multiprotocol-TX-Module
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Hitec comments

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This commit is contained in:
Pascal Langer 2018-08-06 01:42:12 +02:00
parent 68afcc0c44
commit d71640ad7e
1 changed files with 26 additions and 30 deletions
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38
Multiprotocol/Hitec_cc2500.ino
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@ -118,15 +118,12 @@ static void __attribute__((unused)) HITEC_change_chan_fast()
CC2500_WriteReg(CC2500_25_FSCAL1, calData[hopping_frequency_no]); CC2500_WriteReg(CC2500_25_FSCAL1, calData[hopping_frequency_no]);
} }
// Channel values are 12-bit values between 1020 and 2020, 1520 is the middle.
// Futaba @140% is 2070...1520...970
// Values grow down and to the right.
static void __attribute__((unused)) HITEC_build_packet() static void __attribute__((unused)) HITEC_build_packet()
{ {
static boolean F5_packet=false; static boolean F5_packet=false;
uint8_t offset; uint8_t offset;
packet[1] = 0x00; // unknown always 0x00 and does not seem to work if different. TODO: test if part of ID. packet[1] = 0x00; // unknown always 0x00 in the dumps. TODO: test if part of ID.
packet[2] = rx_tx_addr[3]; packet[2] = rx_tx_addr[3];
packet[3] = rx_tx_addr[2]; packet[3] = rx_tx_addr[2];
packet[22] = 0xEE; // unknown always 0xEE packet[22] = 0xEE; // unknown always 0xEE
@ -136,11 +133,11 @@ static void __attribute__((unused)) HITEC_build_packet()
memset(packet+5,0x00,14); memset(packet+5,0x00,14);
switch(bind_phase) switch(bind_phase)
{ {
case 0x72: case 0x72: // first part of the hopping table
for(uint8_t i=0;i<14;i++) for(uint8_t i=0;i<14;i++)
packet[5+i]=hopping_frequency[i]>>1; packet[5+i]=hopping_frequency[i]>>1;
break; break;
case 0x73: case 0x73: // second part of the hopping table
for(uint8_t i=0;i<7;i++) for(uint8_t i=0;i<7;i++)
packet[5+i]=hopping_frequency[i+14]>>1; packet[5+i]=hopping_frequency[i+14]>>1;
break; break;
@ -149,7 +146,7 @@ static void __attribute__((unused)) HITEC_build_packet()
packet[8]=0x55; // unknown but bind does not complete if not there packet[8]=0x55; // unknown but bind does not complete if not there
break; break;
case 0x7B: case 0x7B:
packet[5]=hopping_frequency[13]>>1; // if not there the link is jerky... packet[5]=hopping_frequency[13]>>1; // if not there the Optima link is jerky...
break; break;
} }
if(sub_protocol==OPTIMA) if(sub_protocol==OPTIMA)
@ -157,7 +154,7 @@ static void __attribute__((unused)) HITEC_build_packet()
else else
{ {
packet[4] = bind_phase+0x10; packet[4] = bind_phase+0x10;
bind_phase^=0x01; // switch between 0x82 (first part of the hopping table) and 0x83 (second part) bind_phase^=0x01; // switch between 0x82=first part of the hopping table and 0x83=second part
} }
packet[19] = 0x08; // packet number packet[19] = 0x08; // packet number
offset=20; // packet[20] and [21] offset=20; // packet[20] and [21]
@ -176,13 +173,13 @@ static void __attribute__((unused)) HITEC_build_packet()
packet[26] = 0x00; // unknown always 0 and the RX doesn't seem to care about the value? packet[26] = 0x00; // unknown always 0 and the RX doesn't seem to care about the value?
} }
//The packets [offset] start with 0x00 and after some time alternate between 0x00 and 0xF5 //packet[offset] starts with 0x00 and after some time alternate between 0x00 and 0xF5
//The packets [offset+1] equals 0x00 when [offset]=0x00 otherwise the value is between 0xDB and 0xE0 //packet[offset+1] equals to 0x00 if [offset]=0x00 but if [offset]=0xF5 then the values are between 0xDB and 0xE0
//TODO: test if it could be RSSI related? //TODO: test if it could be RSSI, time, ... related?
if(F5_packet) if(F5_packet)
{ {
packet[offset] = 0xF5; packet[offset] = 0xF5;
packet[offset+1] = 0xE0; //between 0xDB and 0xE0 packet[offset+1] = 0xE0; //value in the dumps between 0xDB and 0xE0
F5_packet=false; F5_packet=false;
} }
else else
@ -288,7 +285,7 @@ uint16_t ReadHITEC()
if(IS_BIND_IN_PROGRESS) if(IS_BIND_IN_PROGRESS)
{ {
if(len==13) // Bind packets have a length of 13 if(len==13) // Bind packets have a length of 13
{ // bind packet 0A,00,E5,F2,7X,05,06,07,08,09,00 { // bind packet: 0A,00,E5,F2,7X,05,06,07,08,09,00
debug(",bind"); debug(",bind");
boolean check=true; boolean check=true;
for(uint8_t i=5;i<=10;i++) for(uint8_t i=5;i<=10;i++)
@ -303,7 +300,8 @@ uint16_t ReadHITEC()
} }
else else
if(len==15) // Telemetry packets have a length of 15 if(len==15) // Telemetry packets have a length of 15
{ //Not fully handled since the RX I have only send 1 frame where from what I've been reading on Hitec telemetry should have at least 4 frames... { // telem packet: 0C, 00, 6A, 03, 00, 00, 00, 00, 00, 00, 00, 8E, 00, 5E, 94
//Not fully handled since the RX I have only send 1 frame where from what I've been reading on Hitec telemetry should have at least 4 frames...
debug(",telem"); debug(",telem");
#if defined(HITEC_HUB_TELEMETRY) #if defined(HITEC_HUB_TELEMETRY)
TX_RSSI = pkt[len-2]; TX_RSSI = pkt[len-2];
@ -312,14 +310,13 @@ uint16_t ReadHITEC()
else else
TX_RSSI += 128; TX_RSSI += 128;
TX_LQI = pkt[len-1]&0x7F; TX_LQI = pkt[len-1]&0x7F;
if(pkt[1]==0x00) // Telemetry frame number??? //TODO: where is the frame number...
v_lipo1 = (pkt[len-3])<<5 | (pkt[len-4])>>3; // calculation in decimal is volt=(pkt[len-3]<<8+pkt[len-4])/28 v_lipo1 = (pkt[len-3])<<5 | (pkt[len-4])>>3; // calculation in decimal is volt=(pkt[len-3]<<8+pkt[len-4])/28
telemetry_link=1; telemetry_link=1; // telemetry hub available
#elif defined(HITEC_FW_TELEMETRY) #elif defined(HITEC_FW_TELEMETRY)
pkt[0]=pkt[1]; // Telemetry frame number???
for(uint8_t i=4;i < len; i++) for(uint8_t i=4;i < len; i++)
pkt[i-3]=pkt[i]; pkt[i-4]=pkt[i]; // remove header, 11 bytes of data
telemetry_link=2; telemetry_link=2; // telemetry forward available
#endif #endif
} }
debugln(""); debugln("");
@ -344,8 +341,7 @@ uint16_t ReadHITEC()
uint16_t initHITEC() uint16_t initHITEC()
{ {
HITEC_RF_channels(); HITEC_RF_channels();
#ifdef HITEC_FORCE_ID #ifdef HITEC_FORCE_ID // ID and channels taken from dump
// ID and channels taken from dump
rx_tx_addr[3]=0x6A; rx_tx_addr[3]=0x6A;
rx_tx_addr[2]=0x03; rx_tx_addr[2]=0x03;
memcpy((void *)hopping_frequency,(void *)"\x00\x3A\x4A\x32\x0C\x58\x2A\x10\x26\x20\x08\x60\x68\x70\x78\x80\x88\x56\x5E\x66\x6E",HITEC_NUM_FREQUENCE); memcpy((void *)hopping_frequency,(void *)"\x00\x3A\x4A\x32\x0C\x58\x2A\x10\x26\x20\x08\x60\x68\x70\x78\x80\x88\x56\x5E\x66\x6E",HITEC_NUM_FREQUENCE);