Firmware Upgrade Instruction -- ASR

(% style="color:red" %)If you change different LoRa Frequency Bands/Region, you need using AT+FDR command to restore factory data after program success.

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)))

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= 4. Trouble Shooting =

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== 4.1 Unable to detect upgrade ==

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* Try to shot the bootloader pin to GND and reset the device. So the device will runs in bootloader mode.

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* Or use **AT+IREBOOT=7** to set the device to work in bootloader mode.

author	version	line-number	content
		1	(% class="wikigeneratedid" %)
		2	~ Table of Contents:
		3
		4	{{toc/}}
		5
		6
		7	= 1. Introduction =
		8
		9
		10	This article shows the firmware upgrade method and troubleshooting for the below models Dragino sensors.
		11
		12
		13	= 2. Model and Connection =
		14
		15	== 2.1 LDS01/LWL01 ==
		16
		17
		18	[[Firmware Location>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Firmware/]]
		19
		20
		21	(((
		22	Pin Mapping:
		23	)))
		24
		25	[[image:image-20220527083845-1.png\|\|height="473" width="915"]]
		26
		27	LDS01/LWL01 Pin Mapping
		28
		29
		30	DAP-Link Connection:
		31
		32	[[image:image-20220527083959-2.png]]
		33
		34	Connect DAP-Link
		35
		36
		37
		38	== 2.2 LDS02/LWL02 ==
		39
		40
		41	[[Firmware Location(same as LDS01)>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDS01/Firmware/]]
		42
		43
		44	(((
		45	Pin Mapping:
		46	)))
		47
		48	[[image:image-20220527084041-3.png\|\|height="378" width="907"]]
		49
		50	LDS02/LDS02 v2.0 Pin Mapping
		51
		52
		53
		54	[[image:image-20220527084230-4.png]]
		55
		56	LDS02/LDS02 v2.2 Pin Mapping
		57
		58
		59
		60	== 2.3 LHT52 ==
		61
		62
		63	[[Firmware Location>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LHT52/firmware/]]
		64
		65	[[image:image-20220527084401-5.png]]
		66
		67	LHT52 Pin Mapping
		68
		69
		70
		71	= 3. How to Upgrade =
		72
		73	== 3.1 Use DAP-Link and Connect to the Device as above photos ==
		74
		75
		76	We need to connect VDD，GND，SWCLK，SWDIO to DAP-Link.
		77
		78	* Connection method：
		79
		80	* GND-GND,
		81
		82	* VDD-3.3V,
		83
		84	* SWCLK-CLK,
		85
		86	* SWDIO-SWD
		87
		88	[[image:image-20220527084505-6.png]]
		89
		90
		91
		92	== 3.2 Install PSoCProgrammer 3.27.1 ==
		93
		94
		95	(((
		96	Download Link: [[PSoCProgrammer3.27.1>>url:https://www.dragino.com/downloads/index.php?dir=tools/]]
		97	)))
		98
		99	(((
		100	And then use PSoCProgrammer to upgrade the firmware ( (% style="color:red" %) must use this version: PSoCProgrammer3.27.1 (%%))
		101	)))
		102
		103	[[image:image-20220527084537-7.png]]
		104
		105
		106
		107	== 3.3 Download Sensor Firmware ==
		108
		109
		110	Downlink sensor firmware to prepare the update
		111
		112
		113
		114	== 3.4 Upgrade Firmware ==
		115
		116
		117	Open PSOC Programmer, select the default configuration, no need to modify
		118
		119	[[image:image-20220527084612-8.png]]
		120
		121
		122	Click the file icon to select the software to be burned：
		123
		124	[[image:image-20220527084705-9.png]]
		125
		126
		127	[[image:image-20220527084739-10.png\|\|height="453" width="1034"]]
		128
		129
		130
		131	(((
		132	Click the download icon, and the progress bar as shown in the figure below will appear. When PASS appears, it proves that the burning is successful.
		133	)))
		134
		135	[[image:image-20220527084831-11.png]]
		136
		137
		138	[[image:image-20220527084907-12.png]]
		139
		140	(((
		141	It is very important to press the reset button after the upgrade., this is to set the device to work in Low Power mode
		142	)))
		143
		144	(((
		145	(% style="color:red" %)If you change different LoRa Frequency Bands/Region, you need using AT+FDR command to restore factory data after program success.
		146
		147
		148
		149	)))
		150
		151	= 4. Trouble Shooting =
		152
		153	== 4.1 Unable to detect upgrade ==
		154
		155
		156	* Try to shot the bootloader pin to GND and reset the device. So the device will runs in bootloader mode.
		157	* Or use AT+IREBOOT=7 to set the device to work in bootloader mode.

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