Version 50.2 by Xiaoling on 2023/03/07 14:59
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1 **Table of** **Contents:**
2
3 {{toc/}}
4
5
6
7
8 = 1. Introduction =
9
10
11 This instruction shows how to upgrade firmware for Dragino products base on STM32 solution. The upgrade can use 2 hardware connections: (% style="color:blue" %)**UART upgrade**(%%) or (% style="color:blue" %)**ST Link v2 upgrade**(%%). Some models supports both methods and some only one of them.
12
13
14 = 2. Hardware Upgrade Method Support List =
15
16
17 (% border="1" style="background-color:#ffffcc; color:green; width:891.222px" %)
18 |=(% colspan="3" style="width: 888px;" %)Dragino STM32 base hardware Upgrade Methods
19 |(% style="width:284px" %)**Model**|(% style="width:409px" %)**UART Connection**|(% style="width:204px" %)**ST-Link Connection**
20 |(% style="width:284px" %)[[LSN50 v1>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/128-lsn50.html]], [[LoRa ST>>url:http://www.dragino.com/products/lora/item/127-lora-st.html]],|(% style="width:409px" %)Hardware Connect Photo|(% style="width:204px" %)Hardware Connect Photo
21 |(% style="width:284px" %)[[LGT92>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/142-lgt-92.html]], [[LBT1>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/165-lbt1.html]]|(% style="width:409px" %)×|(% style="width:204px" %)[[Hardware Connect Photo>>||anchor="H4.1.2LGT922FLBT1ST-Linkv2Connection"]]
22 |(% style="width:284px" %)[[LT-33222-L>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/138-lt-33222-l.html]], [[LT-22222>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]|(% style="width:409px" %)Hardware Connect Photo|(% style="width:204px" %)×
23 |(% style="width:284px" %)[[LHT65>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/151-lht65.html]]|(% style="width:409px" %)×|(% style="width:204px" %)Hardware Connect Photo
24 |(% style="width:284px" %)[[RS485-LN>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/154-rs485-ln.html]]|(% style="width:409px" %)Hardware Connect Photo|(% style="width:204px" %)×
25 |(% style="width:284px" %)[[LSN50v2>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/155-lsn50-v2.html]], [[NBSN95>>url:http://www.dragino.com/products/nb-iot/item/163-nbsn95.html]],[[LSE01>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/159-lse01.html]],[[LDDS20>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/164-ldds20.html]], [[LDS03A>>https://www.dragino.com/products/lorawan-nb-iot-door-sensor-water-leak/item/196-lds03a.html]],[[LDDS75>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/161-ldds75.html||style="background-color: rgb(255, 255, 204);"]]|(% style="width:409px" %)[[Hardware Connect Photo>>||anchor="H3.1.2LSN50v22FLSN50v2-D222FLSN50v2-D23"]]|(% style="width:204px" %)[[Hardware Connect Photo>>||anchor="H4.1.1LSN50v22FLSN50v2-D222FLSN50v2-D23Type"]]
26 |(% style="width:284px" %)[[LAQ4>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/174-laq4.html]]|(% style="width:409px" %)×|(% style="width:204px" %)[[Hardware Connect Photo>>||anchor="H4.1.3LAQ4ST-Linkv2Connection"]]
27 |(% style="width:284px" %)(((
28 [[RS485-BL>>url:https://www.dragino.com/products/lora-lorawan-end-node/item/167-rs485-bl.html]],
29
30 [[LDDS75>>https://www.dragino.com/products/distance-level-sensor/item/161-ldds75.html]],[[LLDS12>>url:https://www.dragino.com/products/distance-level-sensor/item/185-llds12.html]],[[LDDS20>>https://www.dragino.com/products/distance-level-sensor/item/164-ldds20.html]],[[LSE01>>https://www.dragino.com/products/agriculture-weather-station/item/159-lse01.html]],
31
32 [[WSC1-L>>https://www.dragino.com/products/agriculture-weather-station/item/206-wsc1-l.html]],[[GroPoint Air>>https://www.dragino.com/products/agriculture-weather-station/item/227-gropoint-air.html]]
33 )))|(% style="width:409px" %)[[Hardware Connection Photo>>||anchor="H3.1.3RS485-BL2FLDDS752FLDDS202FLSE01"]]|(% style="width:204px" %)[[Hardware Connect Photo>>||anchor="H4.1.4RS485-BL2FLDDS752FLDDS202FLSE01"]]
34 |(% style="width:284px" %)[[LTC2>>url:https://www.dragino.com/products/temperature-humidity-sensor/item/170-ltc2.html]]|(% style="width:409px" %)×|(% style="width:204px" %)[[Hardware Connect Photo>>||anchor="H4.1.5LTC2"]]
35
36
37
38 = 3. UART Upgrade Guide =
39
40 == 3.1 Hardware Connection ==
41
42 === 3.1.1 LSN50 v1 ===
43
44
45 [[image:image-20220526173641-1.png]]
46
47 Connection for LSN50 v1
48
49
50 === 3.1.2 LSN50 v2/LSN50v2-D22/LSN50v2-D23 ===
51
52
53 [[image:image-20220526173751-3.png||height="467" width="966"]]
54
55 Connection for LSN50 Type V2
56
57
58 === 3.1.3 RS485-BL/LDDS75/LDDS20/LSE01 ===
59
60
61 [[image:image-20220526174856-17.png||height="629" width="976"]]
62
63 Connection for RS485-BL base mother board
64
65
66 (% style="color:#4472c4" %) **For UART Update, need:**
67
68 * Connect USB-TTL TXD  <~-~-> Device UART_RX
69 * Connect USB-TTL RXD  <~-~-> Device UART_TX
70 * Connect USB-TTL GND <~-~-> Device GND
71 * Put Switch SW1 to ISP position
72 * Connect JP2 jumper (Yellow one), so device is power on.
73
74
75
76 == 3.2 Upgrade Steps ==
77
78
79 (((
80 (% style="color:blue" %)**Step 1:**(%%) Download [[Flash Loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
81 )))
82
83 (((
84 (% style="color:blue" %)**Step 2:**(%%) Download the Image files, which can be found in the product user manual.
85 )))
86
87 (((
88 (% style="color:blue" %)**Step 3:**(%%) Open Flashloader; choose the correct COM port to update, Please notice that the serial setting must follow below photos.
89 )))
90
91 (((
92 (% style="color:blue" %)**Step 4: **(%%)Set The device into (% style="color:#037691" %)**ISP Mode**(%%). Then Press the (% style="color:#037691" %)**Reset Button**(%%), In the Flash tool, click next and the tool will detect the board type.
93
94
95 (% style="color:red" %)**Note:** ** ISP Mode can be a switch or a button, depends on the product. The device only need to be in ISP mode when press the reset button for UART Upgrade. So if the device is of a button type ISP mode, user can release the ISP button after press the reset button.**
96
97
98 )))
99
100 [[image:image-20220526174302-11.png]]
101
102 UART Upgrade
103
104
105 [[image:image-20220526174231-10.png]]
106
107 UART Upgrade
108
109
110 [[image:image-20220526174202-9.png]]
111
112 (((
113 UART Upgrade
114
115
116 )))
117
118 (((
119 (((
120 (% style="color:blue" %)**Step 5:**(%%) For switch type ISP Mode, After upgrade,please remember to switch back to Flash mode and press RESET Button to run the firmware.
121 )))
122 )))
123
124 (((
125 (((
126 (% style="color:blue" %)**Step 6:**(%%) Always run AT+FDR after update firmware. This is to reset the device to factory settings of the new firmware.
127
128 )))
129 )))
130
131 == 3.3 Trouble shooting ==
132
133 === 3.3.1 General Check List ===
134
135
136 1. Double check if follow up exactly the steps as manual.
137 1. Check if hardware works fine:
138 1*. check if AT command works, in both TX/RX
139 1*. check if the device are in upgrade mode, see product manual for upgrade mode indicator.
140 1*. check if reset button works
141 1. If you use Windows10 system. Please change the flash loader to run in Windows7 compatibility mode.
142 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.
143
144
145
146 == 3.4 Flash Loader ~-~- Unable to Load data from this file ==
147
148
149 [[image:image-20220526174137-8.png]]
150
151 (((
152 Unable to Load data from this file
153
154
155 )))
156
157 (((
158 (((
159 The previous LSN50 firmware file is stored in github. If user use right click ~-~-> Save As to get the hex file. This error will happen. Now the LSN50 firmware file has been moved to [[LSN50 Firmware>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Firmware/]] to avoid this happen.
160
161
162 )))
163 )))
164
165 == 3.5 Alternative method to flash via UART ==
166
167
168 [[Alternative method to flash STM32 via UART.pdf>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/&file=Alternative%20method%20to%20flash%20STM32%20via%20UART.pdf]]
169
170
171 = 4. ST-Link v2 Upgrade =
172
173 == 4.1 Hardware Connections ==
174
175 === 4.1.1 LSN50 v2/LSN50v2-D22/LSN50v2-D23 Type ===
176
177
178 [[image:image-20220526174450-12.png||height="570" width="1162"]]
179
180 ST-Link Connections for LSn50 V2/LSN50v2-D22/LSN50v2-D23 Type
181
182
183 === 4.1.2 LGT92/LBT1 ST-Link v2 Connection ===
184
185
186 [[image:image-20220526174518-13.png]]
187
188
189 Connection to LGT92
190
191 * ST-LINK v2 5.0v  <~-~->  Dupont Cable red pin
192 * ST-LINK v2 GND  <~-~->  Dupont Cable black pin
193 * ST-LINK v2 SWCLK  <~-~->  Dupont Cable green pin
194 * ST-LINK v2 SWDIO  <~-~->  Dupont Cable white pin
195
196
197
198 === 4.1.3 LAQ4 ST-Link v2 Connection ===
199
200
201 [[image:image-20220526174602-14.png||height="506" width="922"]]
202
203 Connection to LAQ4
204
205
206 === 4.1.4 RS485-BL/LDDS75/LDDS20/LSE01 ===
207
208
209 [[image:image-20230306115123-4.png]]
210
211 Connection for RS485-BL base mother board
212
213
214 When use ST-Link v2 to update, need:
215
216 * ST-LINK v2 RESET  <~-~->  NRST
217 * ST-LINK v2 GND  <~-~->  GND
218 * ST-LINK v2 SWCLK  <~-~->  SWCLK
219 * ST-LINK v2 SWDIO  <~-~->  SWDIO
220 * ST-LINK (VDD 3.3v,pin19)  <~-~->  ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.
221
222
223
224 === 4.1.5 LTC2 ===
225
226
227 [[image:image-20230306112740-2.png]]
228
229 Connection for LTC2 base mother board
230
231
232 **Connection:**
233
234 * ST-LINK v2 GND  <~-~->  LTC2 GND
235 * ST-LINK v2 RESET  <~-~->  LTC2 NRST
236 * ST-LINK v2 SWCLK  <~-~->  LTC2 SWCLK
237 * ST-LINK v2 SWDIO  <~-~->  LTC2 SWDIO
238 * ST-LINK (VDD 3.3v,pin19)  <~-~->  ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.
239
240
241
242 == 4.2 ST-Link Upgrade Guide ==
243
244
245 (((
246 (% style="color:blue" %)**Step 1:**(%%) Install [[ST-LINK driver>>url:https://www.stmicroelectronics.com.cn/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-utilities/stsw-link009.html]] first and then install [[ST-LINK Utility>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stsw-link004.html]]
247 )))
248
249 (((
250 (% style="color:blue" %)**Step 2: **(%%)Download the Image files, firmware download link can be found on the product user manual.
251 )))
252
253 (((
254 (% style="color:blue" %)**Step 3:**(%%) Open ST-LINK utility, file ~-~-> open file to select the image to be upgraded.
255 )))
256
257 (((
258 (% style="color:blue" %)**Step 4:**
259 )))
260
261 * Case 1: If your board has the **Reset pin** connect to St-Link ((for example: LSN50v2, LHT65, LAQ4), click the blue global “settings” button on ST-LINK.
262 * Case 2: If your board doesn't have reset pin connect to ST-Link, but has a reset button (for example: LGT92). Keep pushing the small reset button on LGT92 and then click the blue global “settings” button on ST-Link utility.
263
264 [[image:image-20220526175243-19.png]]
265
266 Click Global Icon
267
268
269 (% style="color:blue" %)**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.
270
271
272 [[image:image-20220526175307-20.png]]
273
274 Do not click OK, click Cancel
275
276
277 (% style="color:blue" %)**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.
278
279 [[image:image-20220701171857-1.png]]
280
281 ST-Link v2 Upgrade
282
283
284 == 4.3 Trouble Shootings ==
285
286 === 4.3.1 ST-Link v2 can not detect the hardware ===
287
288
289 (% style="color:#4f81bd" %)**Possible Issue 1:**
290
291 1. Make sure see the LED blink on the ST-Link and release the reset button during blinking.
292
293 (% style="color:#4f81bd" %)**Possible Issue 2:**
294
295 1. There are different version ST-Link v2. The white one as below is the most stable and recommended one.
296 1. The white version ST-Link v2 such as below photo has different hardware version. The original one doesn't have 3.3v on pin 1/2 and the clone one has 3.3v on pin 1/2. User has to short pin19 (VDD 3.3v) and pin 1/2 (TVCC) for the original one so pin 1/2 has 3.3v power. Otherwise, the original one might have problem to upload firmware to End Node.
297
298 [[image:image-20220526175418-21.png]]
299
300 ST-Link upload issue
301
302
303 (% style="color:#4f81bd" %)**Possible Issue 3:**
304
305 1. The ST-Link adapter has issue in the RESET pin. this happens for the LHT65 model where the update request use the reset pin of ST-Link.We see this issue happen in below ST-LINK.
306
307 [[image:image-20220526175708-22.png]]
308
309 (((
310 RESET pin not function
311 )))
312
313 (((
314
315 )))
316
317 (((
318 (((
319 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.
320 )))
321 )))
322
323 (((
324 For LHT65 we recommend to use the white one show in possible issue 2.
325 )))
326
327 (((
328 For LGT92, if user use this type of ST-Link, please also connect the 5v to USB port of LGT92.
329 )))
330
331
332 === 4.3.2 ST-Link v2 detect the hardware but disconnect after click OK ===
333
334
335 [[image:image-20220526175755-23.png]]
336
337 Do not click OK, click Cancel
338
339
340 === 4.3.3 Old ST-LINK firmware/ST-LINK already use and USB communication error ===
341
342
343 (((
344 It may be that your stlink firmware is too old.
345 )))
346
347 (((
348 You can try these steps:
349 )))
350
351 (((
352 You unplug the stlink, and then plug in the stlink again.
353 )))
354
355 (((
356 You click **ST-LINK  ->  Firmware update.**
357 )))
358
359 [[image:image-20220526175855-24.png]]
360
361 (% style="color:blue" %)**step1: **(%%) click Device connect.
362
363
364
365 [[image:image-20220526175954-25.png]]
366
367 [[image:image-20220526180013-26.png]]
368
369 (% style="color:blue" %)**step2: **(%%) Click yes to upgrade successfully.
370
371
372 = 5. Firmware upgrade using STM32 Cubeprogramer =
373
374
375 (% style="color:blue" %)**Step1:**(%%) Enter the download interface
376
377 [[image:image-20230222160658-1.png||height="479" width="827"]]
378
379
380 (% style="color:blue" %)**Step2:**(%%) Connect serial port correctly and select UART/ST-LINK
381
382 [[image:image-20230222160847-2.png||height="481" width="830"]]
383
384
385 (% style="color:blue" %)**Step3: **(%%)Select the file to download
386
387 [[image:image-20230222160947-3.png||height="473" width="818"]]
388
389
390 (% style="color:blue" %)**Step4: **(%%)Click to start programming, and wait for it to download to 100%, pop up a successful download box
391
392 [[image:image-20230222161119-4.png||height="476" width="821"]]
393
394

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