gomaomao/DIY-Multiprotocol-TX-Module
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MLink: use only odd channels like original

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This commit is contained in:
Pascal Langer 2021-02-06 10:23:10 +01:00
parent 17750e774a
commit 510f892d2f
3 changed files with 28 additions and 4 deletions
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28
Multiprotocol/MLINK_cyrf6936.ino
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@ -465,18 +465,40 @@ uint16_t ReadMLINK()
return 1000;
}
static void __attribute__((unused)) MLINK_shuffle_freqs(uint32_t seed, uint8_t *hop)
{
randomSeed(seed);
for(uint8_t i=0; i < MLINK_NUM_FREQ/2; i++)
{
uint8_t r = random(0xfefefefe) % (MLINK_NUM_FREQ/2);
uint8_t tmp = hop[r];
hop[r] = hop[i];
hop[i] = tmp;
}
}
uint16_t initMLINK()
{
MLINK_cyrf_config();
//Init ID and RF freqs
for(uint8_t i=0; i < MLINK_NUM_FREQ/2; i++)
{
hopping_frequency[i ] = (i<<1) + 3;
hopping_frequency[i+MLINK_NUM_FREQ/2] = (i<<1) + 3;
}
// part1
memcpy(MLINK_Data_Code ,rx_tx_addr,4);
calc_fh_channels(MLINK_NUM_FREQ/2);
memcpy(&hopping_frequency[MLINK_NUM_FREQ/2],hopping_frequency,MLINK_NUM_FREQ/2);
MLINK_shuffle_freqs(MProtocol_id, hopping_frequency);
// part2
MProtocol_id ^= 0x6FBE3201;
set_rx_tx_addr(MProtocol_id);
memcpy(MLINK_Data_Code+4,rx_tx_addr,4);
calc_fh_channels(MLINK_NUM_FREQ/2);
MLINK_shuffle_freqs(MProtocol_id, &hopping_frequency[MLINK_NUM_FREQ/2]);
// part3
MLINK_CRC_Init = rx_tx_addr[3]; //value sent during bind then used to init the CRC
MLINK_Unk_6_2 = 0x3A; //unknown value sent during bind but doesn't seem to matter

2
Multiprotocol/Multiprotocol.h
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@ -19,7 +19,7 @@
#define VERSION_MAJOR 1
#define VERSION_MINOR 3
#define VERSION_REVISION 2
#define VERSION_PATCH_LEVEL 29
#define VERSION_PATCH_LEVEL 30
//******************
// Protocols

2
Protocols_Details.md
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@ -870,6 +870,8 @@ Extended limits supported
Telemetry: the 2 RXs I have are sending different information in different format, I've done something which might work or not so please report
Bind: the RX must be really close to the TX
CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|CH13|CH14|CH15|CH16
---|---|---|---|---|---|---|---|---|----|----|----|----|----|----|----
CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12||CH13|CH14|CH15|CH16