gomaomao/DIY-Multiprotocol-TX-Module
1
0
Fork 0
mirror of https://github.com/pascallanger/DIY-Multiprotocol-TX-Module.git synced 2025-02-04 18:48:11 +00:00
Code Issues Projects Releases Wiki Activity

XN297Dump improvements

Browse Source 
Selection of address length
Timing accuracy
This commit is contained in:
Pascal Langer 2019-06-04 21:41:50 +02:00
parent e7b079ece7
commit ded0487ce6
1 changed files with 132 additions and 105 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
Multiprotocol/XN297Dump_nrf24l01.ino
View File

@ -13,12 +13,16 @@
along with Multiprotocol. If not, see <http://www.gnu.org/licenses/>.
*/
// sub_protocol: 0=250Kbps, 1=1Mbps, 2=2Mbps. Other values default to 1Mbps.
// RX_num = address length 3 or 4 or 5. Other values default to 5.
// option = RF channel number 0..84 and -1 = scan all channels. Other values default to RF channel 0.
#ifdef XN297DUMP_NRF24L01_INO
#include "iface_nrf24l01.h"
// Parameters which can be modified
#define XN297DUMP_PERIOD_DUMP 3000 // Multiplied by 50, default 3000=150ms
#define XN297DUMP_PERIOD_DUMP 25000
#define XN297DUMP_MAX_RF_CHANNEL 84 // Default 84
// Do not touch from there
@ -27,6 +31,7 @@
#define XN297DUMP_CRC_LENGTH 2
uint8_t address_length;
uint16_t over;
boolean scramble;
static void __attribute__((unused)) XN297Dump_init()
@ -43,7 +48,7 @@ static void __attribute__((unused)) XN297Dump_init()
NRF24L01_WriteRegisterMulti(NRF24L01_0A_RX_ADDR_P0, (uint8_t*)"\x55\x0F\x71", 3); // set up RX address to xn297 preamble
NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0, XN297DUMP_MAX_PACKET_LEN); // Enable rx pipe 0
debug("XN297 dump, speed=");
debug("XN297 dump, address length=%d, speed=",address_length);
switch(sub_protocol)
{
case 0:
@ -71,10 +76,7 @@ static boolean __attribute__((unused)) XN297Dump_process_packet(void)
{
uint16_t crcxored;
uint8_t packet_sc[XN297DUMP_MAX_PACKET_LEN], packet_un[XN297DUMP_MAX_PACKET_LEN];
address_length=5;
while(address_length >= 3)
{
// init crc
crc = 0xb5d2;
@ -83,7 +85,7 @@ static boolean __attribute__((unused)) XN297Dump_process_packet(void)
{
crc = crc16_update(crc, packet[i], 8);
packet_un[address_length-1-i]=packet[i];
packet_sc[address_length-1-i]=packet[i] ^= xn297_scramble[i];
packet_sc[address_length-1-i]=packet[i] ^ xn297_scramble[i];
}
// payload
@ -110,14 +112,23 @@ static boolean __attribute__((unused)) XN297Dump_process_packet(void)
return true;
}
}
address_length--;
}
return false;
}
static void __attribute__((unused)) XN297Dump_overflow()
{
if(TIMER2_BASE->SR & TIMER_SR_UIF)
{ // timer overflow
if(over!=0xFFFF)
over++;
TIMER2_BASE->SR = 0x1E5F & ~TIMER_SR_UIF; // Clear Timer2 overflow flag
}
}
static uint16_t XN297Dump_callback()
{
static uint16_t time=0;
while(1)
{
if(option==0xFF && bind_counter>XN297DUMP_PERIOD_DUMP)
{ // Scan frequencies
hopping_frequency_no++;
@ -139,15 +150,23 @@ static uint16_t XN297Dump_callback()
| (1 << NRF24L01_00_CRCO)
| (1 << NRF24L01_00_PWR_UP)
| (1 << NRF24L01_00_PRIM_RX));
over=0xFFFF;
}
XN297Dump_overflow();
if( NRF24L01_ReadReg(NRF24L01_07_STATUS) & _BV(NRF24L01_07_RX_DR))
{ // RX fifo data ready
if(NRF24L01_ReadReg(NRF24L01_09_CD) || option != 0xFF)
{
NRF24L01_ReadPayload(packet,XN297DUMP_MAX_PACKET_LEN);
debug_time("RX: ");
debug("us C=%d ", hopping_frequency_no);
uint16_t time_TCNT1=TCNT1;
uint32_t time32=0;
time=time_TCNT1-time;
if(over!=0xFFFF)
time32=(over<<16)+time;
debug("RX: %5luus C=%d ", time32>>1 , hopping_frequency_no);
time=time_TCNT1;
over=0;
if(XN297Dump_process_packet())
{ // valid crc found
debug("S=%c A=",scramble?'Y':'N');
@ -168,6 +187,7 @@ static uint16_t XN297Dump_callback()
}
}
XN297Dump_overflow();
// restart RX mode
NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70); // Clear data ready, data sent, and retransmit
NRF24L01_SetTxRxMode(TXRX_OFF);
@ -177,6 +197,7 @@ static uint16_t XN297Dump_callback()
| (1 << NRF24L01_00_CRCO)
| (1 << NRF24L01_00_PWR_UP)
| (1 << NRF24L01_00_PRIM_RX));
XN297Dump_overflow();
}
bind_counter++;
if(IS_RX_FLAG_on) // Let the radio update the protocol
@ -188,12 +209,18 @@ static uint16_t XN297Dump_callback()
prev_option=option;
}
}
return 50;
XN297Dump_overflow();
}
return 100;
}
uint16_t initXN297Dump(void)
{
BIND_DONE;
over=0xFFFF;
address_length=RX_num;
if(address_length<3||address_length>5)
address_length=5; //default
XN297Dump_init();
bind_counter=0;
rf_ch_num=0xFF;