Version 45.2 by Xiaoling on 2023/02/24 09:22
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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 red pin
192 * ST-LINK v2 GND  <~-~->  Dupont black pin
193 * ST-LINK v2 SWCLK  <~-~->  Dupont green pin
194 * ST-LINK v2 SWDIO  <~-~->  Dupont 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-20220526174733-16.png||height="576" width="903"]]
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-20220526175131-18.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
239
240
241 == 4.2 ST-Link Upgrade Guide ==
242
243
244 (((
245 (% 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]]
246 )))
247
248 (((
249 (% style="color:blue" %)**Step 2: **(%%)Download the Image files, firmware download link can be found on the product user manual.
250 )))
251
252 (((
253 (% style="color:blue" %)**Step 3:**(%%) Open ST-LINK utility, file ~-~-> open file to select the image to be upgraded.
254 )))
255
256 (((
257 (% style="color:blue" %)**Step 4:**
258 )))
259
260 * 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.
261 * 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.
262
263 [[image:image-20220526175243-19.png]]
264
265 Click Global Icon
266
267
268 (% 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.
269
270
271 [[image:image-20220526175307-20.png]]
272
273 Do not click OK, click Cancel
274
275
276 (% 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.
277
278 [[image:image-20220701171857-1.png]]
279
280 ST-Link v2 Upgrade
281
282
283 == 4.3 Trouble Shootings ==
284
285 === 4.3.1 ST-Link v2 can not detect the hardware ===
286
287
288 (% style="color:#4f81bd" %)**Possible Issue 1:**
289
290 1. Make sure see the LED blink on the ST-Link and release the reset button during blinking.
291
292 (% style="color:#4f81bd" %)**Possible Issue 2:**
293
294 1. There are different version ST-Link v2. The white one as below is the most stable and recommended one.
295 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.
296
297 [[image:image-20220526175418-21.png]]
298
299 ST-Link upload issue
300
301
302 (% style="color:#4f81bd" %)**Possible Issue 3:**
303
304 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.
305
306 [[image:image-20220526175708-22.png]]
307
308 (((
309 RESET pin not function
310 )))
311
312 (((
313
314 )))
315
316 (((
317 (((
318 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.
319 )))
320 )))
321
322 (((
323 For LHT65 we recommend to use the white one show in possible issue 2.
324 )))
325
326 (((
327 For LGT92, if user use this type of ST-Link, please also connect the 5v to USB port of LGT92.
328 )))
329
330
331 === 4.3.2 ST-Link v2 detect the hardware but disconnect after click OK ===
332
333
334 [[image:image-20220526175755-23.png]]
335
336 Do not click OK, click Cancel
337
338
339 === 4.3.3 Old ST-LINK firmware/ST-LINK already use and USB communication error ===
340
341
342 (((
343 It may be that your stlink firmware is too old.
344 )))
345
346 (((
347 You can try these steps:
348 )))
349
350 (((
351 You unplug the stlink, and then plug in the stlink again.
352 )))
353
354 (((
355 You click **ST-LINK  ->  Firmware update.**
356 )))
357
358 [[image:image-20220526175855-24.png]]
359
360 (% style="color:blue" %)**step1: **(%%) click Device connect.
361
362
363
364 [[image:image-20220526175954-25.png]]
365
366 [[image:image-20220526180013-26.png]]
367
368 (% style="color:blue" %)**step2: **(%%) Click yes to upgrade successfully.
369
370
371 = 5. Firmware upgrade using STM32 Cubeprogramer =
372
373
374 (% style="color:blue" %)**Step1:**(%%) Enter the download interface
375
376 [[image:image-20230222160658-1.png||height="479" width="827"]]
377
378
379 (% style="color:blue" %)**Step2:**(%%) Connect serial port correctly and select UART/ST-LINK
380
381 [[image:image-20230222160847-2.png||height="481" width="830"]]
382
383
384 (% style="color:blue" %)**Step3: **(%%)Select the file to download
385
386 [[image:image-20230222160947-3.png||height="473" width="818"]]
387
388
389 (% style="color:blue" %)**Step4: **(%%)Click to start programming, and wait for it to download to 100%, pop up a successful download box
390
391 [[image:image-20230222161119-4.png||height="476" width="821"]]
392
393

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