gomaomao/DIY-Multiprotocol-TX-Module
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Take several samples per channel, keep maximum value

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This commit is contained in:
Goebish 2019-09-14 15:19:02 +02:00
parent 31d88d6f37
commit 74c7a43933
1 changed files with 21 additions and 9 deletions
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30
Multiprotocol/Scanner_cc2500.ino
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@ -18,8 +18,9 @@
#include "iface_cc2500.h" #include "iface_cc2500.h"
#define SCAN_MAX_RADIOCHANNEL 249 // 2483 MHz #define SCAN_MAX_RADIOCHANNEL 249 // 2483 MHz
#define SCAN_CHANNEL_LOCK_TIME 300 // with precalibration, channel requires only 90 usec for synthesizer to settle #define SCAN_CHANNEL_LOCK_TIME 210 // with precalibration, channel requires only 90 usec for synthesizer to settle
#define SCAN_AVERAGE_INTVL 30 #define SCAN_AVERAGE_INTVL 20
#define SCAN_MAX_COUNT 5
#define SCAN_CHANS_PER_PACKET 5 #define SCAN_CHANS_PER_PACKET 5
static uint8_t scan_tlm_index; static uint8_t scan_tlm_index;
@ -96,10 +97,14 @@ static int __attribute__((unused)) Scanner_scan_rssi()
uint16_t Scanner_callback() uint16_t Scanner_callback()
{ {
static uint8_t max_count, max_rssi;
uint8_t rssi;
switch (phase) switch (phase)
{ {
case SCAN_CHANNEL_CHANGE: case SCAN_CHANNEL_CHANGE:
if(telemetry_link == 0) { if(telemetry_link == 0) {
max_count = 0;
max_rssi = 0;
rf_ch_num++; rf_ch_num++;
if (rf_ch_num >= (SCAN_MAX_RADIOCHANNEL + 1)) if (rf_ch_num >= (SCAN_MAX_RADIOCHANNEL + 1))
rf_ch_num = 0; rf_ch_num = 0;
@ -110,13 +115,20 @@ uint16_t Scanner_callback()
} }
return SCAN_CHANNEL_LOCK_TIME; return SCAN_CHANNEL_LOCK_TIME;
case SCAN_GET_RSSI: case SCAN_GET_RSSI:
phase = SCAN_CHANNEL_CHANGE; rssi = Scanner_scan_rssi();
pkt[scan_tlm_index] = Scanner_scan_rssi(); if(rssi >= max_rssi) {
if (scan_tlm_index == SCAN_CHANS_PER_PACKET) max_rssi = rssi;
{ pkt[scan_tlm_index] = rssi;
// send data to TX }
telemetry_link = 1; max_count++;
scan_tlm_index = 0; if(max_count > SCAN_MAX_COUNT) {
phase = SCAN_CHANNEL_CHANGE;
if (scan_tlm_index == SCAN_CHANS_PER_PACKET)
{
// send data to TX
telemetry_link = 1;
scan_tlm_index = 0;
}
} }
} }
return SCAN_AVERAGE_INTVL; return SCAN_AVERAGE_INTVL;