gomaomao/DIY-Multiprotocol-TX-Module
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SLT/SLT6X new subprotocol

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pascallanger
2026-08-03 23:51:35 +02:00
parent 3d50a39efb
commit 0a7f74dc06
8 changed files with 193 additions and 20 deletions
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2
Multiprotocol/Multi.txt
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@@ -8,7 +8,7 @@
8,YD717,YD717,SKYWLKR,SYMAX4,XINXUN,NIHUI
9,KN,WLTOYS,FEILUN
10,SymaX,SYMAX,SYMAX5C
11,SLT,SLT_V1,SLT_V2,Q100,Q200,MR100,V1_4CH,RF_SIM
11,SLT,SLT_V1,SLT_V2,Q100,Q200,MR100,V1_4CH,RF_SIM,SLT6TX
12,CX10,GREEN,BLUE,DM007,---,J3015_1,J3015_2,MK33041
13,CG023,CG023,YD829
14,Bayang,Bayang,H8S3D,X16_AH,IRDRONE,DHD_D4,QX100

4
Multiprotocol/Multi_Protos.ino
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@@ -139,7 +139,7 @@ const char STR_SUBTYPE_DEVO[] = "\x04""8ch\0""10ch""12ch""6ch\0""7ch\0";
const char STR_SUBTYPE_YD717[] = "\x07""Std\0 ""SkyWlkr""Syma X4""XINXUN\0""NIHUI\0 ";
const char STR_SUBTYPE_KN[] = "\x06""WLtoys""FeiLun";
const char STR_SUBTYPE_SYMAX[] = "\x03""Std""X5C";
const char STR_SUBTYPE_SLT[] = "\x06""V1_6ch""V2_8ch""Q100\0 ""Q200\0 ""MR100\0""V1_4ch""RF_SIM";
const char STR_SUBTYPE_SLT[] = "\x06""V1_6ch""V2_8ch""Q100\0 ""Q200\0 ""MR100\0""V1_4ch""RF_SIM""SLT6TX";
const char STR_SUBTYPE_CX10[] = "\x07""Green\0 ""Blue\0 ""DM007\0 ""-\0 ""JC3015a""JC3015b""MK33041";
const char STR_SUBTYPE_CG023[] = "\x05""Std\0 ""YD829";
const char STR_SUBTYPE_BAYANG[] = "\x07""Std\0 ""H8S3D\0 ""X16 AH\0""IRDrone""DHD D4\0""QX100\0 ";
@@ -488,7 +488,7 @@ const mm_protocol_definition multi_protocols[] = {
{PROTO_SKYARTEC, STR_SKYARTEC, NO_SUBTYPE, 0, OPTION_RFTUNE, 0, 1, SW_CC2500, SKYARTEC_init, SKYARTEC_callback },
#endif
#if defined(SLT_CCNRF_INO)
{PROTO_SLT, STR_SLT, STR_SUBTYPE_SLT, 7, OPTION_RFTUNE, 0, 1, SW_NRF, SLT_init, SLT_callback },
{PROTO_SLT, STR_SLT, STR_SUBTYPE_SLT, 8, OPTION_RFTUNE, 0, 1, SW_NRF, SLT_init, SLT_callback },
#endif
#if defined(SYMAX_NRF24L01_INO)
{PROTO_SYMAX, STR_SYMAX, STR_SUBTYPE_SYMAX, 2, OPTION_NONE, 0, 0, SW_NRF, SYMAX_init, SYMAX_callback },

4
Multiprotocol/Multiprotocol.h
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@@ -19,7 +19,7 @@
#define VERSION_MAJOR 1
#define VERSION_MINOR 3
#define VERSION_REVISION 4
#define VERSION_PATCH_LEVEL 61
#define VERSION_PATCH_LEVEL 62
#define MODE_SERIAL 0
@@ -216,6 +216,7 @@ enum SLT
MR100 = 4,
SLT_V1_4 = 5,
RF_SIM = 6,
SLT6TX = 7,
};
enum CX10
{
@@ -1149,6 +1150,7 @@ Serial: 100000 Baud 8e2 _ xxxx xxxx p --
MR100 4
SLT_V1_4CH 5
RF_SIM 6
SLT6TX 7
sub_protocol==E01X
E012 0
E015 1

37
Multiprotocol/NRF250K_EMU.ino
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@@ -16,13 +16,25 @@
#include "iface_nrf250k.h"
#if defined(CC2500_INSTALLED) && defined(NRF24L01_INSTALLED)
extern bool xn297_rf;
#endif
uint8_t cc2500_nrf_tx_addr[5], cc2500_nrf_addr_len;
static void __attribute__((unused)) NRF250K_SetTXAddr(uint8_t* addr, uint8_t len)
{
if (len > 5) len = 5;
if (len < 3) len = 3;
#if defined(CC2500_INSTALLED)
#if defined(CC2500_INSTALLED) && defined(NRF24L01_INSTALLED)
cc2500_nrf_addr_len = len;
memcpy(cc2500_nrf_tx_addr, addr, len);
if(xn297_rf == XN297_NRF)
{
NRF24L01_WriteReg(NRF24L01_03_SETUP_AW, len-2);
NRF24L01_WriteRegisterMulti(NRF24L01_10_TX_ADDR, addr, len);
}
#elif defined(CC2500_INSTALLED)
cc2500_nrf_addr_len = len;
memcpy(cc2500_nrf_tx_addr, addr, len);
#elif defined(NRF24L01_INSTALLED)
@@ -33,6 +45,22 @@ static void __attribute__((unused)) NRF250K_SetTXAddr(uint8_t* addr, uint8_t len
static void __attribute__((unused)) NRF250K_WritePayload(uint8_t* msg, uint8_t len)
{
#if defined(NRF24L01_INSTALLED)
#if defined(CC2500_INSTALLED)
if(xn297_rf == XN297_NRF)
#endif
{
if(len<=32)
{
NRF24L01_FlushTx();
NRF24L01_WriteReg(NRF24L01_07_STATUS, _BV(NRF24L01_07_TX_DS) | _BV(NRF24L01_07_RX_DR) | _BV(NRF24L01_07_MAX_RT));
NRF24L01_WritePayload(msg, len);
}
#if defined(CC2500_INSTALLED)
return;
#endif
}
#endif
#if defined(CC2500_INSTALLED)
#if defined(ESKY150V2_CC2500_INO)
uint8_t buf[158];
@@ -106,13 +134,6 @@ static void __attribute__((unused)) NRF250K_WritePayload(uint8_t* msg, uint8_t l
CC2500_WriteRegisterMulti(CC2500_3F_TXFIFO, buff, last);
CC2500_Strobe(CC2500_STX);
}
#elif defined(NRF24L01_INSTALLED)
if(len<=32)
{
NRF24L01_FlushTx();
NRF24L01_WriteReg(NRF24L01_07_STATUS, _BV(NRF24L01_07_TX_DS) | _BV(NRF24L01_07_RX_DR) | _BV(NRF24L01_07_MAX_RT));
NRF24L01_WritePayload(msg, len);
}
#endif
}

151
Multiprotocol/SLT_ccnrf.ino
View File

@@ -28,6 +28,9 @@
#define SLT_NFREQCHANNELS 15
#define SLT_TXID_SIZE 4
#define SLT_BIND_CHANNEL 0x50
#define SLT6_CH_MIN 182 // 10-bit AETR minimum (captures: 180-185, symmetric around 512)
#define SLT6_CH_MAX 842 // 10-bit AETR maximum (captures: 829-843, symmetric around 512)
#define SLT6_SW_THRESHOLD 273 // ~33% of half-range (820/3) for 3-position switch zones
enum{
// flags going to packet[6] (Q200)
@@ -54,9 +57,32 @@ enum {
SLT_BIND2,
};
// SLT6 sub-cycle states: 3 sub-cycles per triple, each with 2 copies
enum {
SLT6_BUILD_A=0, // Build packet, configure for 7B sub-cycle
SLT6_DATA_A1, // Send 7B copy 1
SLT6_DATA_A2, // Send 7B copy 2, configure for 6B sub-cycle
SLT6_DATA_B1, // Send 6B copy 1
SLT6_DATA_B2, // Send 6B copy 2, configure for 5B sub-cycle
SLT6_DATA_C1, // Send 5B copy 1
SLT6_DATA_C2, // Send 5B copy 2
SLT6_BIND, // Send bind packet
};
// SLT6 address XOR values for the 3 sub-cycles
#define SLT6_ADDR_XOR_A 0x00 // 7B sub-cycle: base address
#define SLT6_ADDR_XOR_B 0x06 // 6B sub-cycle: byte[0] XOR 0x06
#define SLT6_ADDR_XOR_C 0x09 // 5B sub-cycle: byte[0] XOR 0x09
// SLT6 timing (from capture 12b, in microseconds)
#define SLT6_TIMING_SUBCYCLE 5994 // ~6000us between sub-cycle starts
#define SLT6_TIMING_PAIR 1633 // ~1633us between the two copies within a sub-cycle
#define SLT6_TIMING_BUILD 1000 // Build+config time at start of each triple
#define SLT6_TIMING_TRIPLE (3 * SLT6_TIMING_SUBCYCLE) // ~18ms triple period
static void __attribute__((unused)) SLT_RF_init()
{
NRF250K_Init();
NRF250K_Init(option == 0); // SLT: option==0 uses NRF24L01, option!=0 uses CC2500 with freq tuning
NRF250K_SetTXAddr(rx_tx_addr, SLT_TXID_SIZE);
}
@@ -152,8 +178,6 @@ static void __attribute__((unused)) SLT_build_packet()
packet[5] = convert_channel_8b(CH5);
packet[6] = convert_channel_8b(CH6);
//->V1 stops here
if(sub_protocol == Q200)
packet[6] = GET_FLAG(CH9_SW , FLAG_Q200_FMODE)
|GET_FLAG(CH10_SW, FLAG_Q200_FLIP)
@@ -188,6 +212,47 @@ static void __attribute__((unused)) SLT_build_packet()
calib_counter = 0;
}
// SLT6: build 7-byte data packet from current channel values
static void __attribute__((unused)) SLT6_build_packet()
{
// aileron, elevator, throttle, rudder (10-bit, limited range)
uint8_t e = 0;
for (uint8_t i = 0; i < 4; ++i)
{
uint16_t v = convert_channel_16b_limit(CH_AETR[i], SLT6_CH_MIN, SLT6_CH_MAX);
packet[i] = v;
e = (e >> 2) | (uint8_t) ((v >> 2) & 0xC0);
}
packet[4] = e;
// Flight mode: 3 positions at ~33% each
if(Channel_data[CH5] > CHANNEL_MID + SLT6_SW_THRESHOLD)
packet[5] = 0xD0;
else if(Channel_data[CH5] < CHANNEL_MID - SLT6_SW_THRESHOLD)
packet[5] = 0x30;
else
packet[5] = 0x80;
// Panic: only active when CH6 is below -33%, center and up = no panic
if(Channel_data[CH6] < CHANNEL_MID - SLT6_SW_THRESHOLD)
packet[6] = 0x30;
else
packet[6] = 0xD0;
}
// SLT6: configure radio for a sub-cycle (set address and channel)
static void __attribute__((unused)) SLT6_configure_radio(uint8_t addr_xor, uint8_t hop_offset)
{
SLT_wait_radio();
// Set TX address with XOR on byte[0]
uint8_t addr[SLT_TXID_SIZE];
memcpy(addr, rx_tx_addr, SLT_TXID_SIZE);
addr[0] ^= addr_xor;
NRF250K_SetTXAddr(addr, SLT_TXID_SIZE);
// Set RF channel
NRF250K_Hopping((hopping_frequency_no + hop_offset) % SLT_NFREQCHANNELS);
}
static void __attribute__((unused)) SLT_send_bind_packet()
{
SLT_wait_radio();
@@ -197,7 +262,7 @@ static void __attribute__((unused)) SLT_send_bind_packet()
BIND_DONE;
NRF250K_SetTXAddr((uint8_t *)"\x7E\xB8\x63\xA9", SLT_TXID_SIZE);
memcpy((void*)packet, (void*)rx_tx_addr, SLT_TXID_SIZE);
if(phase == SLT_BIND2)
if(phase == SLT_BIND2 || phase == SLT6_BIND)
SLT_send_packet(SLT_TXID_SIZE);
else // SLT_BIND1
SLT_send_packet(SLT_PAYLOADSIZE_V2);
@@ -210,8 +275,71 @@ static void __attribute__((unused)) SLT_send_bind_packet()
#define SLT_V1_TIMING_BIND2 1000
#define SLT_V2_TIMING_BIND1 6507
#define SLT_V2_TIMING_BIND2 2112
// SLT6 callback: triple-address state machine
// Each triple: 3 sub-cycles (7B, 6B, 5B), each sent twice, with different addresses and channels
static uint16_t __attribute__((unused)) SLT6_callback()
{
switch (phase)
{
case SLT6_BUILD_A:
#ifdef MULTI_SYNC
telemetry_set_input_sync(SLT6_TIMING_TRIPLE);
#endif
SLT6_build_packet();
NRF250K_SetPower();
SLT6_configure_radio(SLT6_ADDR_XOR_A, 0); // 7B sub-cycle: base address, hop+0
phase = SLT6_DATA_A1;
return SLT6_TIMING_BUILD;
case SLT6_DATA_A1:
SLT_send_packet(7);
phase = SLT6_DATA_A2;
return SLT6_TIMING_PAIR; // 1633us between copies
case SLT6_DATA_A2:
SLT_send_packet(7);
SLT6_configure_radio(SLT6_ADDR_XOR_B, 3); // 6B sub-cycle: XOR 0x06 address, hop+3
phase = SLT6_DATA_B1;
return SLT6_TIMING_SUBCYCLE - SLT6_TIMING_PAIR; // 4361us to next sub-cycle TX
case SLT6_DATA_B1:
SLT_send_packet(6);
phase = SLT6_DATA_B2;
return SLT6_TIMING_PAIR;
case SLT6_DATA_B2:
SLT_send_packet(6);
SLT6_configure_radio(SLT6_ADDR_XOR_C, 6); // 5B sub-cycle: XOR 0x09 address, hop+6
phase = SLT6_DATA_C1;
return SLT6_TIMING_SUBCYCLE - SLT6_TIMING_PAIR; // 4361us
case SLT6_DATA_C1:
SLT_send_packet(5);
phase = SLT6_DATA_C2;
return SLT6_TIMING_PAIR;
case SLT6_DATA_C2:
SLT_send_packet(5);
// Advance hopping for next triple
if (++hopping_frequency_no >= SLT_NFREQCHANNELS)
hopping_frequency_no = 0;
if (++packet_count >= 100)
{// Send bind packet periodically
packet_count = 0;
phase = SLT6_BIND;
return SLT_V1_TIMING_BIND2;
}
phase = SLT6_BUILD_A;
return SLT6_TIMING_SUBCYCLE - SLT6_TIMING_PAIR - SLT6_TIMING_BUILD; // Gap before next build
case SLT6_BIND:
SLT_send_bind_packet();
phase = SLT6_BUILD_A;
return SLT6_TIMING_SUBCYCLE - SLT6_TIMING_PAIR - SLT6_TIMING_BUILD;
}
return SLT6_TIMING_TRIPLE;
}
uint16_t SLT_callback()
{
// SLT6 has its own state machine
if(sub_protocol == SLT6TX)
return SLT6_callback();
switch (phase)
{
case SLT_BUILD:
@@ -285,7 +413,15 @@ void SLT_init()
packet_sent = 0;
hopping_frequency_no = 0;
if(sub_protocol == SLT_V1)
if(sub_protocol == SLT6TX)
{
hopping_frequency_no = 1; // SLT6 starts hopping at index 1 (verified from captures)
// packet_length not used for SLT6 (lengths vary per sub-cycle)
#ifdef MULTI_SYNC
packet_period = SLT6_TIMING_TRIPLE;
#endif
}
else if(sub_protocol == SLT_V1)
{
packet_length = SLT_PAYLOADSIZE_V1;
#ifdef MULTI_SYNC
@@ -326,7 +462,10 @@ void SLT_init()
SLT_RF_init();
SLT_set_freq();
phase = SLT_BUILD;
if(sub_protocol == SLT6TX)
phase = SLT6_BUILD_A;
else
phase = SLT_BUILD;
}
#endif

1
Multiprotocol/_Config.h
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@@ -858,6 +858,7 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]= {
MR100
V1_4CH
RF_SIM
SLT6TX
PROTO_SYMAX
SYMAX
SYMAX5C

2
Multiprotocol/iface_nrf250k.h
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@@ -13,7 +13,7 @@
//////////////
// Functions
#define NRF250K_Init() XN297_Configure(XN297_CRCEN, XN297_SCRAMBLED, XN297_250K)
#define NRF250K_Init(X) XN297_Configure(XN297_CRCEN, XN297_SCRAMBLED, XN297_250K, X)
#define NRF250K_HoppingCalib(X) XN297_HoppingCalib(X)
#define NRF250K_Hopping(X) XN297_Hopping(X)
#define NRF250K_RFChannel(X) XN297_RFChannel(X)