gomaomao/DIY-Multiprotocol-TX-Module
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FrSkyD and FrSkyX: random frequencies

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This commit is contained in:
pascallanger 2016-12-21 18:05:55 +01:00
parent 9585b3919a
commit 7bb26a7f07
5 changed files with 36 additions and 51 deletions
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15
Multiprotocol/Convert.ino → Multiprotocol/Common.ino
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@ -66,3 +66,18 @@ uint16_t limit_channel_100(uint8_t ch)
return Servo_data[ch];
}
/******************************/
/** FrSky D and X routines **/
/******************************/
void Frsky_init_hop(void)
{
uint8_t channel = rx_tx_addr[0]&0x07;
uint8_t channel_spacing = (rx_tx_addr[1]&0x7F)+64;
for(uint8_t i=0;i<50;i++)
{
hopping_frequency[i]=i>47?0:channel;
channel=(channel+channel_spacing) % 0xEB;
if((channel==0x00) || (channel==0x5A) || (channel==0xDC))
channel++;
}
}

25
Multiprotocol/FrSkyD_cc2500.ino
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@ -50,16 +50,6 @@ static void __attribute__((unused)) frsky2way_init(uint8_t bind)
//#######END INIT########
}
static uint8_t __attribute__((unused)) get_chan_num(uint16_t idx)
{
uint8_t ret = (idx * 0x1e) % 0xeb;
if(idx == 3 || idx == 23 || idx == 47)
ret++;
if(idx > 47)
return 0;
return ret;
}
static void __attribute__((unused)) frsky2way_build_bind_packet()
{
//11 03 01 d7 2d 00 00 1e 3c 5b 78 00 00 00 00 00 00 01
@ -71,11 +61,11 @@ static void __attribute__((unused)) frsky2way_build_bind_packet()
packet[4] = rx_tx_addr[2];
uint16_t idx = ((state -FRSKY_BIND) % 10) * 5;
packet[5] = idx;
packet[6] = get_chan_num(idx++);
packet[7] = get_chan_num(idx++);
packet[8] = get_chan_num(idx++);
packet[9] = get_chan_num(idx++);
packet[10] = get_chan_num(idx++);
packet[6] = hopping_frequency[idx++];
packet[7] = hopping_frequency[idx++];
packet[8] = hopping_frequency[idx++];
packet[9] = hopping_frequency[idx++];
packet[10] = hopping_frequency[idx++];
packet[11] = 0x00;
packet[12] = 0x00;
packet[13] = 0x00;
@ -124,6 +114,7 @@ static void __attribute__((unused)) frsky2way_data_frame()
uint16_t initFrSky_2way()
{
Frsky_init_hop();
if(IS_AUTOBIND_FLAG_on)
{
frsky2way_init(1);
@ -169,7 +160,7 @@ uint16_t ReadFrSky_2way()
{ //telemetry receive
CC2500_SetTxRxMode(RX_EN);
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_0A_CHANNR, get_chan_num(counter % 47));
CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[counter % 47]);
CC2500_WriteReg(CC2500_23_FSCAL3, 0x89);
state++;
return 1300;
@ -191,7 +182,7 @@ uint16_t ReadFrSky_2way()
CC2500_SetPower(); // Set tx_power
}
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_0A_CHANNR, get_chan_num(counter % 47));
CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[counter % 47]);
if ( prev_option != option )
{
CC2500_WriteReg(CC2500_0C_FSCTRL0,option); // Frequency offset hack

43
Multiprotocol/FrSkyX_cc2500.ino
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@ -26,29 +26,11 @@ uint8_t ctr;
uint8_t seq_last_sent;
uint8_t seq_last_rcvd;
const PROGMEM uint8_t hop_data[]={
0x02, 0xD4, 0xBB, 0xA2, 0x89,
0x70, 0x57, 0x3E, 0x25, 0x0C,
0xDE, 0xC5, 0xAC, 0x93, 0x7A,
0x61, 0x48, 0x2F, 0x16, 0xE8,
0xCF, 0xB6, 0x9D, 0x84, 0x6B,
0x52, 0x39, 0x20, 0x07, 0xD9,
0xC0, 0xA7, 0x8E, 0x75, 0x5C,
0x43, 0x2A, 0x11, 0xE3, 0xCA,
0xB1, 0x98, 0x7F, 0x66, 0x4D,
0x34, 0x1B, 0x00, 0x1D, 0x03
};
static uint8_t __attribute__((unused)) hop(uint8_t byte)
{
return pgm_read_byte_near(&hop_data[byte]);
}
static void __attribute__((unused)) set_start(uint8_t ch )
{
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_25_FSCAL1, calData[ch]);
CC2500_WriteReg(CC2500_0A_CHANNR, ch==47? 0:hop(ch));
CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[ch]);
}
static void __attribute__((unused)) frskyX_init()
@ -87,19 +69,14 @@ static void __attribute__((unused)) frskyX_init()
CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
CC2500_Strobe(CC2500_SIDLE);
//
for(uint8_t c=0;c < 47;c++)
for(uint8_t c=0;c < 48;c++)
{//calibrate hop channels
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_0A_CHANNR,hop(c));
CC2500_WriteReg(CC2500_0A_CHANNR,hopping_frequency[c]);
CC2500_Strobe(CC2500_SCAL);
delayMicroseconds(900);//
calData[c] = CC2500_ReadReg(CC2500_25_FSCAL1);
}
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_0A_CHANNR,0x00);
CC2500_Strobe(CC2500_SCAL);
delayMicroseconds(900);
calData[47] = CC2500_ReadReg(CC2500_25_FSCAL1);
//#######END INIT########
}
@ -148,11 +125,11 @@ static void __attribute__((unused)) frskyX_build_bind_packet()
packet[4] = rx_tx_addr[2];
int idx = ((state -FRSKY_BIND) % 10) * 5;
packet[5] = idx;
packet[6] = hop(idx++);
packet[7] = hop(idx++);
packet[8] = hop(idx++);
packet[9] = hop(idx++);
packet[10] = hop(idx++);
packet[6] = hopping_frequency[idx++];
packet[7] = hopping_frequency[idx++];
packet[8] = hopping_frequency[idx++];
packet[9] = hopping_frequency[idx++];
packet[10] = hopping_frequency[idx++];
packet[11] = 0x02;
packet[12] = RX_num;
//
@ -307,16 +284,18 @@ uint16_t ReadFrSkyX()
uint16_t initFrSkyX()
{
Frsky_init_hop();
while(!chanskip)
chanskip=random(0xfefefefe)%47;
while((chanskip-ctr)%4)
ctr=(ctr+1)%4;
counter_rst=(chanskip-ctr)>>2;
//for test***************
//rx_tx_addr[3]=0xB3;
//rx_tx_addr[2]=0xFD;
//************************
hopping_frequency[47]=0;
frskyX_init();
CC2500_SetTxRxMode(TX_EN);
//

2
Multiprotocol/Multiprotocol.ino
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@ -76,7 +76,7 @@ uint16_t packet_period;
uint8_t packet_count;
uint8_t packet_sent;
uint8_t packet_length;
uint8_t hopping_frequency[23];
uint8_t hopping_frequency[50];
uint8_t *hopping_frequency_ptr;
uint8_t hopping_frequency_no=0;
uint8_t rf_ch_num;

2
Multiprotocol/_Config.h
View File

@ -73,8 +73,8 @@
#define J6PRO_CYRF6936_INO
//The protocols below need a CC2500 to be installed
#define FRSKYD_CC2500_INO
#define FRSKYV_CC2500_INO
#define FRSKYD_CC2500_INO
#define FRSKYX_CC2500_INO
#define SFHSS_CC2500_INO