gomaomao/DIY-Multiprotocol-TX-Module
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Hitec improvement

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Added 3rd byte of TX ID
Reproduce the F5 frames from original TX
This commit is contained in:
Pascal Langer 2018-08-06 18:32:39 +02:00
parent d71640ad7e
commit bf09177916
3 changed files with 25 additions and 21 deletions
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41
Multiprotocol/Hitec_cc2500.ino
View File

@ -120,12 +120,13 @@ static void __attribute__((unused)) HITEC_change_chan_fast()
static void __attribute__((unused)) HITEC_build_packet()
{
static boolean F5_packet=false;
static boolean F5_frame=false;
static uint8_t F5_counter=0;
uint8_t offset;
packet[1] = 0x00; // unknown always 0x00 in the dumps. TODO: test if part of ID.
packet[2] = rx_tx_addr[3];
packet[3] = rx_tx_addr[2];
packet[1] = rx_tx_addr[1];
packet[2] = rx_tx_addr[2];
packet[3] = rx_tx_addr[3];
packet[22] = 0xEE; // unknown always 0xEE
if(IS_BIND_IN_PROGRESS)
{
@ -173,20 +174,23 @@ 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[offset] starts with 0x00 and after some time alternate between 0x00 and 0xF5
//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, time, ... related?
if(F5_packet)
{
packet[offset] = 0xF5;
packet[offset+1] = 0xE0; //value in the dumps between 0xDB and 0xE0
F5_packet=false;
if(F5_frame)
{// No idea what it is but Minima RXs are expecting these frames to work to work
packet[offset] = 0xF5;
packet[offset+1] = 0xDF;
if((F5_counter%9)==0)
packet[offset+1] -= 0x04; // every 8 packets send 0xDB
F5_counter++;
F5_counter%=59; // every 6 0xDB packets wait only 4 to resend instead of 8
F5_frame=false; // alternate
if(IS_BIND_IN_PROGRESS)
packet[offset+1]++; // when binding the values are 0xE0 and 0xDC
}
else
{
packet[offset] = 0x00;
packet[offset+1] = 0x00;
F5_packet=true;
F5_frame=true; // alternate
}
/* debug("P:");
for(uint8_t i=0;i<packet[0]+1;i++)
@ -221,8 +225,8 @@ uint16_t ReadHITEC()
bind_counter=0;
rf_ch_num=HITEC_NUM_FREQUENCE;
//Set TXID
CC2500_WriteReg(CC2500_04_SYNC1,rx_tx_addr[2]);
CC2500_WriteReg(CC2500_05_SYNC0,rx_tx_addr[3]);
CC2500_WriteReg(CC2500_05_SYNC0,rx_tx_addr[2]);
CC2500_WriteReg(CC2500_04_SYNC1,rx_tx_addr[3]);
}
hopping_frequency_no=0;
HITEC_tune_chan();
@ -277,7 +281,7 @@ uint16_t ReadHITEC()
if(len && len<MAX_PKT)
{ // Something has been received
CC2500_ReadData(pkt, len);
if( (pkt[len-1] & 0x80) && pkt[0]==len-3 && packet[2]==rx_tx_addr[3] && packet[3]==rx_tx_addr[2])
if( (pkt[len-1] & 0x80) && pkt[0]==len-3 && pkt[1]==rx_tx_addr[1] && pkt[2]==rx_tx_addr[2] && pkt[3]==rx_tx_addr[3])
{ //valid crc && length ok && tx_id ok
debug("RX:l=%d",len);
for(uint8_t i=0;i<len;i++)
@ -322,7 +326,7 @@ uint16_t ReadHITEC()
debugln("");
}
}
CC2500_Strobe(CC2500_SRX); // Flush the RX FIFO buffer
CC2500_Strobe(CC2500_SFRX); // Flush the RX FIFO buffer
phase = HITEC_PREP;
if(bind_counter)
{
@ -342,8 +346,9 @@ uint16_t initHITEC()
{
HITEC_RF_channels();
#ifdef HITEC_FORCE_ID // ID and channels taken from dump
rx_tx_addr[3]=0x6A;
rx_tx_addr[1]=0x00;
rx_tx_addr[2]=0x03;
rx_tx_addr[3]=0x6A;
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);
#endif
phase = HITEC_START;

2
Multiprotocol/Multiprotocol.h
View File

@ -19,7 +19,7 @@
#define VERSION_MAJOR 1
#define VERSION_MINOR 2
#define VERSION_REVISION 0
#define VERSION_PATCH_LEVEL 25
#define VERSION_PATCH_LEVEL 26
//******************
// Protocols

3
Multiprotocol/_Config.h
View File

@ -253,8 +253,7 @@
//SPORT_POLLING is an implementation of the same polling routine as XJT module for sport telemetry bidirectional communication.
//This is useful for passing sport control frames from TX to RX(ex: changing Betaflight PID or VTX channels on the fly using LUA scripts with OpentX).
//Using this feature on turnigy 9XR_PRO requires uncomment INVERT_TELEMETRY as this TX output on telemetry pin only inverted signal.
//!This is a work in progress!
//Using this feature requires to uncomment INVERT_TELEMETRY as this TX output on telemetry pin only inverted signal.
//#define SPORT_POLLING