Fix t-echo gps failure

[lewisxhe]

When I changed the T-echo factory default firmware to 2.3.7 or 2.3.6, I encountered the problem of GPS being unable to locate. I had to find the problem in the source code. I don’t know why. PIN_GPS_TX has been renamed to GPS_RX_PIN, but The pin names in t-echo have not been changed, so the default compiled firmware will not have GPS functionality.

[lewisxhe]

Fixed log

//\ E S H T /\ S T / C

DEBUG | ??:??:?? 0 Filesystem files:
DEBUG | ??:??:?? 1  channels.proto (57 Bytes)
DEBUG | ??:??:?? 1  db.proto (312 Bytes)
DEBUG | ??:??:?? 1 Using analog input 4 for battery level
INFO  | ??:??:?? 1 Scanning for i2c devices...
DEBUG | ??:??:?? 1 Scanning for i2c devices on port 1
DEBUG | ??:??:?? 1 I2C device found at address 0x51
INFO  | ??:??:?? 1 PCF8563 RTC found
INFO  | ??:??:?? 1 1 I2C devices found
DEBUG | ??:??:?? 1 acc_info = 0
INFO  | ??:??:?? 1 Meshtastic hwvendor=7, swver=2.3.8.102a20d2
DEBUG | ??:??:?? 1 Reset reason: 0x0
DEBUG | ??:??:?? 1 Setting random seed 3090297759
INFO  | ??:??:?? 1 Initializing NodeDB
INFO  | ??:??:?? 1 Loading /prefs/db.proto
INFO  | ??:??:?? 1 Loaded /prefs/db.proto successfully
INFO  | ??:??:?? 1 Loaded saved devicestate version 22, with nodecount: 1
INFO  | ??:??:?? 1 File /prefs/config.proto not found
INFO  | ??:??:?? 1 Installing default LocalConfig
INFO  | ??:??:?? 1 Setting default channel and radio preferences!
DEBUG | ??:??:?? 1 Expanding short PSK #1
INFO  | ??:??:?? 1 Wanted region 0, using UNSET
INFO  | ??:??:?? 1 File /prefs/module.proto not found
INFO  | ??:??:?? 1 Installing default ModuleConfig
INFO  | ??:??:?? 1 Loading /prefs/channels.proto
INFO  | ??:??:?? 1 Loaded /prefs/channels.proto successfully
INFO  | ??:??:?? 1 Loaded saved channelFile version 22
INFO  | ??:??:?? 1 File /oem/oem.proto not found
DEBUG | ??:??:?? 1 cleanupMeshDB purged 0 entries
DEBUG | ??:??:?? 1 Using nodenum 0x246967f 
DEBUG | ??:??:?? 1 Expanding short PSK #1
INFO  | ??:??:?? 1 Wanted region 0, using UNSET
DEBUG | ??:??:?? 1 Using GPIO42 for button
DEBUG | ??:??:?? 1 Set Timezone to GMT0
DEBUG | ??:??:?? 1 Read RTC time from PCF8563 as 536901888
INFO  | 06:58:09 1 Setting GPS power=1
INFO  | 06:58:09 1 Waking GPS
DEBUG | 06:58:09 1 WANT GPS=1
INFO  | 06:58:09 1 Setting GPS power=1
INFO  | 06:58:09 1 Waking GPS

2.3.7.30 version firmware log

//\ E S H T /\ S T / C

DEBUG | ??:??:?? 0 Filesystem files:
DEBUG | ??:??:?? 1  channels.proto (57 Bytes)
DEBUG | ??:??:?? 1  db.proto (312 Bytes)
DEBUG | ??:??:?? 1 Using analog input 4 for battery level
INFO  | ??:??:?? 1 Scanning for i2c devices...
DEBUG | ??:??:?? 1 Scanning for i2c devices on port 1
DEBUG | ??:??:?? 1 I2C device found at address 0x51
INFO  | ??:??:?? 1 PCF8563 RTC found
INFO  | ??:??:?? 1 1 I2C devices found
DEBUG | ??:??:?? 1 acc_info = 0
INFO  | ??:??:?? 1 Meshtastic hwvendor=7, swver=2.3.7.30fbcab
DEBUG | ??:??:?? 1 Reset reason: 0x0
DEBUG | ??:??:?? 1 Setting random seed 2196796418
INFO  | ??:??:?? 1 Initializing NodeDB
INFO  | ??:??:?? 1 Loading /prefs/db.proto
INFO  | ??:??:?? 1 Loaded /prefs/db.proto successfully
INFO  | ??:??:?? 1 Loaded saved devicestate version 22, with nodecount: 1
INFO  | ??:??:?? 1 File /prefs/config.proto not found
INFO  | ??:??:?? 1 Installing default LocalConfig
INFO  | ??:??:?? 1 Setting default channel and radio preferences!
DEBUG | ??:??:?? 1 Expanding short PSK #1
INFO  | ??:??:?? 1 Wanted region 0, using UNSET
INFO  | ??:??:?? 1 File /prefs/module.proto not found
INFO  | ??:??:?? 1 Installing default ModuleConfig
INFO  | ??:??:?? 1 Loading /prefs/channels.proto
INFO  | ??:??:?? 1 Loaded /prefs/channels.proto successfully
INFO  | ??:??:?? 1 Loaded saved channelFile version 22
INFO  | ??:??:?? 1 File /oem/oem.proto not found
DEBUG | ??:??:?? 1 cleanupMeshDB purged 0 entries
DEBUG | ??:??:?? 1 Using nodenum 0x246967f 
DEBUG | ??:??:?? 1 Expanding short PSK #1
INFO  | ??:??:?? 1 Wanted region 0, using UNSET
DEBUG | ??:??:?? 1 Using GPIO42 for button
DEBUG | ??:??:?? 1 Set Timezone to GMT0
DEBUG | ??:??:?? 1 Read RTC time from PCF8563 as 536901888
DEBUG | 06:59:23 1 NeighborInfoModule is disabled
INFO  | 06:59:23 1 External Notification Module Disabled
INFO  | 06:59:23 1 Doing EInk init
DEBUG | 06:59:23 1 initialized, determineMode(): refresh=FAST, reason=FLAGGED_DEMAND_FAST, frameFlags=0x9
DEBUG | 06:59:23 1 Updating E-Paper... done
INFO  | 06:59:25 3 Turning on screen
DEBUG | 06:59:25 3 determineMode(): refresh=FAST, reason=FLAGGED_DEMAND_FAST, frameFlags=0xb
DEBUG | 06:59:25 3 Updating E-Paper... done
DEBUG | 06:59:26 5 Module wants a UI Frame
DEBUG | 06:59:26 5 SX126xInterface(cs=24, irq=20, rst=25, busy=17)
DEBUG | 06:59:26 5 SX126X_DIO3_TCXO_VOLTAGE defined, using DIO3 as TCXO reference voltage at 1.800000 V
INFO  | 06:59:26 5 Starting meshradio init...
DEBUG | 06:59:26 5 (bw=250, sf=11, cr=4/5) packet symLen=8 ms, payloadSize=0, time 231 ms
DEBUG | 06:59:26 5 (bw=250, sf=11, cr=4/5) packet symLen=8 ms, payloadSize=253, time 2115 ms
INFO  | 06:59:26 5 Radio freq=906.875, config.lora.frequency_offset=0.000
INFO  | 06:59:26 5 Set radio: region=UNSET, name=LongFast, config=0, ch=19, power=30
INFO  | 06:59:26 5 Radio myRegion->freqStart -> myRegion->freqEnd: 902.000000 -> 928.000000 (26.000000 mhz)
INFO  | 06:59:26 5 Radio myRegion->numChannels: 104 x 250.000kHz
INFO  | 06:59:26 5 Radio channel_num: 20
INFO  | 06:59:26 5 Radio frequency: 906.875000
INFO  | 06:59:26 5 Slot time: 42 msec
INFO  | 06:59:26 5 Set radio: final power level=22
INFO  | 06:59:26 5 SX126x init result 0
INFO  | 06:59:26 5 Frequency set to 906.875000
INFO  | 06:59:26 5 Bandwidth set to 250.000000
INFO  | 06:59:26 5 Power output set to 22
DEBUG | 06:59:26 5 Current limit set to 140.000000
DEBUG | 06:59:26 5 Current limit set result 0
DEBUG | 06:59:26 5 Setting DIO2 as RF switch
DEBUG | 06:59:26 5 SX126X_RXEN not defined, defaulting to RADIOLIB_NC
DEBUG | 06:59:26 5 SX126X_TXEN not defined, defaulting to RADIOLIB_NC
DEBUG | 06:59:26 5 Using MCU pin -1 as RXEN and pin -1 as TXEN to control RF switching
INFO  | 06:59:26 5 Set RX gain to boosted mode; result: 0
INFO  | 06:59:26 5 SX1262 Radio init succeeded, using SX1262 radio
DEBUG | 06:59:26 5 (bw=250, sf=11, cr=4/5) packet symLen=8 ms, payloadSize=237, time 2000 ms
DEBUG | 06:59:26 5 LoRA bitrate = 118.500000 bytes / sec
INFO  | 06:59:26 5 PowerFSM init, USB power=1
DEBUG | 06:59:26 5 Enter state: BOOT
DEBUG | 06:59:26 5 [Power] Battery: usbPower=0, isCharging=0, batMv=3839, batPct=64
DEBUG | 06:59:26 5 [Screen] Screen: Started...
DEBUG | 06:59:26 5 [Screen] determineMode(): refresh=SKIPPED, reason=FRAME_MATCHED_PREVIOUS, frameFlags=0x3
INFO  | 06:59:26 5 [RangeTestModule] Range Test Module - Disabled
DEBUG | 06:59:27 6 [Screen] determineMode(): refresh=SKIPPED, reason=FRAME_MATCHED_PREVIOUS, frameFlags=0x3
DEBUG | 06:59:28 7 [Screen] determineMode(): refresh=SKIPPED, reason=FRAME_MATCHED_PREVIOUS, frameFlags=0x3
DEBUG | 06:59:29 8 [Screen] determineMode(): refresh=SKIPPED, reason=FRAME_MATCHED_PREVIOUS, frameFlags=0x3
INFO  | 06:59:30 8 [PowerFSM] Loss of power in Powered
INFO  | 06:59:30 8 [PowerFSM] Loss of power in Powered
DEBUG | 06:59:30 8 [PowerFSM] Initializing NRF52 Bluetooth
INFO  | 06:59:30 8 [PowerFSM] Initialize the Bluefruit nRF52 module
INFO  | 06:59:30 8 [PowerFSM] Bluetooth pin set to '746137'
INFO  | 06:59:30 8 [PowerFSM] Configuring the Device Information Service
INFO  | 06:59:30 8 [PowerFSM] Configuring the Battery Service
INFO  | 06:59:30 8 [PowerFSM] Configuring the Mesh bluetooth service
INFO  | 06:59:30 8 [PowerFSM] Setting up the advertising payload(s)
INFO  | 06:59:30 8 [PowerFSM] Advertising
DEBUG | 06:59:30 8 [PowerFSM] Enter state: ON
DEBUG | 06:59:30 8 [Screen] refresh=SKIPPED, reason=EXCEEDED_RATELIMIT_FAST, frameFlags=0x3
DEBUG | 06:59:30 8 [Screen] refresh=SKIPPED, reason=EXCEEDED_RATELIMIT_FAST, frameFlags=0x3
DEBUG | 06:59:31 9 [Screen] determineMode(): refresh=SKIPPED, reason=FRAME_MATCHED_PREVIOUS, frameFlags=0x3
INFO  | 06:59:32 10 [Screen] Done with boot screen...
DEBUG | 06:59:32 10 [Screen] showing standard frames
DEBUG | 06:59:32 10 [Screen] Showing 0 module frames
DEBUG | 06:59:32 10 [Screen] Total frame count: 103
DEBUG | 06:59:32 10 [Screen] Added modules.  numframes: 0
DEBUG | 06:59:32 10 [Screen] Finished building frames. numframes: 2
DEBUG | 06:59:32 10 [Screen] determineMode(): refresh=FULL, reason=FLAGGED_COSMETIC, frameFlags=0x5
DEBUG | 06:59:32 10 [Screen] Updating E-Paper...