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23	23	|(% style="width:444px" %)[[RS485-BL>>url:https://www.dragino.com/products/lora-lorawan-end-node/item/167-rs485-bl.html]], LDDS75,[[LLDS12>>url:https://www.dragino.com/products/distance-level-sensor/item/185-llds12.html]],LDDS20,[[LSE01>>https://www.dragino.com/products/agriculture-weather-station/item/159-lse01.html]],WSC1-L,GroPoint Air|(% style="width:239px" %)[[Hardware Connection Photo>>url:https://wiki.dragino.com/index.php/Firmware_Upgrade_Trouble_Shooting#RS485-BL.2FLDDS75.2FLDDS20.2FLSE01]]|(% style="width:204px" %)[[Hardware Connect Photo>>url:https://wiki.dragino.com/index.php/Firmware_Upgrade_Instruction_for_STM32_base_products#RS485-BL.2FLDDS75.2FLDDS20.2FLSE01_2]]
24	24	|(% style="width:444px" %)[[LTC2>>url:https://www.dragino.com/products/temperature-humidity-sensor/item/170-ltc2.html]]|(% style="width:239px" %)×|(% style="width:204px" %)[[Hardware Connect Photo>>url:https://wiki.dragino.com/index.php/Firmware_Upgrade_Instruction_for_STM32_base_products#LTC2]]
25	25
	26	+
26	26	= 3. UART Upgrade Guide =
27	27
28	28	== 3.1 Hardware Connection ==
...	...	@@ -29,13 +29,13 @@
29	29
30	30	=== 3.1.1 LSN50 v1 ===
31	31
32		-[[image:image-20220511163746-2.png||height="322" width="433"]]
	33	+[[image:image-20220511163746-2.png]]
33	33
34	34	Connection for LSN50 v1
35	35
36	36	=== 3.1.2 LSN50 v2/LSN50v2-D22/LSN50v2-D23 ===
37	37
38		-[[image:https://wiki.dragino.com/images/thumb/f/f8/STM32_UART_Upgrade_2.png/600px-STM32_UART_Upgrade_2.png||height="267" width="551"]]
	39	+[[image:https://wiki.dragino.com/images/thumb/f/f8/STM32_UART_Upgrade_2.png/600px-STM32_UART_Upgrade_2.png||height="291" width="600"]]
39	39
40	40	Connection for LSN50 Type V2
41	41
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53	53	* Put Switch SW1 to ISP position
54	54	* Connect JP2 jumper (Yellow one), so device is power on.
55	55
	57	+
56	56	== 3.2 Upgrade Steps ==
57	57
58	58	(((
...	...	@@ -109,6 +109,7 @@
109	109	1. If you use Windows10 system. Please change the flash loader to run in Windows7 compatibility mode.
110	110	1. We see a case the FT232 USB TTL adapter has reliability issue with the PC USB chipset(Intel). In this case, even above, it still has serious reliability issue for uploading. If this happen, change a PC or change a USB to TTL adapter will solve.
111	111
	114	+
112	112	== 3.4 Flash Loader ~-~- Unable to Load data from this file ==
113	113
114	114	[[image:https://wiki.dragino.com/images/9/96/FlashLoader-troube_1.png||height="521" width="399"]]
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146	146	* ST-LINK v2 SWCLK <~-~-> Dupont green pin
147	147	* ST-LINK v2 SWDIO <~-~-> Dupont white pin
148	148
	152	+
149	149	=== 4.1.3 LAQ4 ST-Link v2 Connection ===
150	150
151	151	[[image:https://wiki.dragino.com/images/thumb/0/03/STM32_STLINK_Upgrade_LAQ4.png/600px-STM32_STLINK_Upgrade_LAQ4.png||height="331" width="600"]]
...	...	@@ -180,6 +180,7 @@
180	180	* ST-LINK v2 SWCLK <~-~-> LTC2 SWCLK
181	181	* ST-LINK v2 SWDIO <~-~-> LTC2 SWDIO
182	182
	187	+
183	183	== 4.2 ST-Link Upgrade Guide ==
184	184
185	185	(((
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205	205
206	206	Click Global Icon
207	207
208		-(((
	213	+
209	209	**Step 5**: After click the Global ICon in Step4, The led on the ST-LINK v2 adapter will now blinks, if you use hand to press the reset button , you need to release the reset button when see the LED blinks, and the ST-Link will detect the STM32 hardware as below. Click cancel to enter next step. Please check hardware connection if ST-Link v2 LED doesn't blink
210		-)))
211	211
212	212	[[image:https://wiki.dragino.com/images/thumb/2/20/ST-LINK-troube_2.png/600px-ST-LINK-troube_2.png||height="366" width="600"]]
213	213
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228	228
229	229	1. Make sure see the LED blink on the ST-Link and release the reset button during blinking.
230	230
	235	+
231	231	Possible Issue 2:
232	232
233	233	1. There are different version ST-Link v2. The white one as below is the most stable and recommended one.
...	...	@@ -244,27 +244,15 @@
244	244
245	245	[[image:https://wiki.dragino.com/images/a/a3/ST-LINK-troube_4.png||height="337" width="406"]]
246	246
247		-(((
248	248	RESET pin not function
249		-)))
250	250
251	251	(((
252		-
253		-)))
254		-
255		-(((
256		-(((
257	257	User can try to mannual reset when use this type of ST-Link, touch the reset pin to GND pin and click the global icon in the ST Utility, If the other 3 wire connection is fine, the ST-LInk adapter LED will blink. and then release the reset. The IC should be detected.
258	258	)))
259		-)))
260	260
261		-(((
262	262	For LHT65 we recommend to use the white one show in possible issue 2.
263		-)))
264	264
265		-(((
266	266	For LGT92, if user use this type of ST-Link, please also connect the 5v to USB port of LGT92
267		-)))
268	268
269	269
270	270	=== 4.3.2 ST-Link v2 detect the hardware but disconnect after click OK ===