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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
214	214	Do not click OK, click Cancel
215	215
216		-(((
217	217	**Step 6: **Click verify/upgrade firmware. The ST-Link utility will pop up a download window. Click the start button to download the image to Device.
218		-)))
219	219
220	220	[[image:https://wiki.dragino.com/images/thumb/9/9a/STM32_ST-Link_Upgrade_3.png/600px-STM32_ST-Link_Upgrade_3.png||height="389" width="600"]]
221	221
...	...	@@ -230,6 +230,7 @@
230	230
231	231	1. Make sure see the LED blink on the ST-Link and release the reset button during blinking.
232	232
	235	+
233	233	Possible Issue 2:
234	234
235	235	1. There are different version ST-Link v2. The white one as below is the most stable and recommended one.
...	...	@@ -246,27 +246,15 @@
246	246
247	247	[[image:https://wiki.dragino.com/images/a/a3/ST-LINK-troube_4.png||height="337" width="406"]]
248	248
249		-(((
250	250	RESET pin not function
251		-)))
252	252
253	253	(((
254		-
255		-)))
256		-
257		-(((
258		-(((
259	259	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.
260	260	)))
261		-)))
262	262
263		-(((
264	264	For LHT65 we recommend to use the white one show in possible issue 2.
265		-)))
266	266
267		-(((
268	268	For LGT92, if user use this type of ST-Link, please also connect the 5v to USB port of LGT92
269		-)))
270	270
271	271
272	272	=== 4.3.2 ST-Link v2 detect the hardware but disconnect after click OK ===