Version 51.1 by Bei Jinggeng on 2023/03/20 10:02
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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 = 3. UART Upgrade Guide =
38
39 == 3.1 Hardware Connection ==
40
41 === 3.1.1 LSN50 v1 ===
42
43
44 [[image:image-20220526173641-1.png]]
45
46 Connection for LSN50 v1
47
48
49 === 3.1.2 LSN50 v2/LSN50v2-D22/LSN50v2-D23 ===
50
51
52 [[image:image-20220526173751-3.png||height="467" width="966"]]
53
54 Connection for LSN50 Type V2
55
56
57 === 3.1.3 RS485-BL/LDDS75/LDDS20/LSE01 ===
58
59
60 [[image:image-20220526174856-17.png||height="629" width="976"]]
61
62 Connection for RS485-BL base mother board
63
64
65 (% style="color:#4472c4" %) **For UART Update, need:**
66
67 * Connect USB-TTL TXD  <~-~-> Device UART_RX
68 * Connect USB-TTL RXD  <~-~-> Device UART_TX
69 * Connect USB-TTL GND <~-~-> Device GND
70 * Put Switch SW1 to ISP position
71 * Connect JP2 jumper (Yellow one), so device is power on.
72
73
74 == 3.2 Upgrade Steps ==
75
76
77 (((
78 (% 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]].
79 )))
80
81 (((
82 (% style="color:blue" %)**Step 2:**(%%) Download the Image files, which can be found in the product user manual.
83 )))
84
85 (((
86 (% style="color:blue" %)**Step 3:**(%%) Open Flashloader; choose the correct COM port to update, Please notice that the serial setting must follow below photos.
87 )))
88
89 (((
90 (% 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.
91
92
93 (% 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.**
94
95
96 )))
97
98 [[image:image-20220526174302-11.png]]
99
100 UART Upgrade
101
102
103 [[image:image-20220526174231-10.png]]
104
105 UART Upgrade
106
107
108 [[image:image-20220526174202-9.png]]
109
110 (((
111 UART Upgrade
112
113
114 )))
115
116 (((
117 (((
118 (% 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.
119 )))
120 )))
121
122 (((
123 (((
124 (% 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.
125
126 )))
127 )))
128
129 == 3.3 Trouble shooting ==
130
131 === 3.3.1 General Check List ===
132
133
134 1. Double check if follow up exactly the steps as manual.
135 1. Check if hardware works fine:
136 1*. check if AT command works, in both TX/RX
137 1*. check if the device are in upgrade mode, see product manual for upgrade mode indicator.
138 1*. check if reset button works
139 1. If you use Windows10 system. Please change the flash loader to run in Windows7 compatibility mode.
140 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.
141
142
143 == 3.4 Flash Loader ~-~- Unable to Load data from this file ==
144
145
146 [[image:image-20220526174137-8.png]]
147
148 (((
149 Unable to Load data from this file
150
151
152 )))
153
154 (((
155 (((
156 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.
157
158
159 )))
160 )))
161
162 == 3.5 Alternative method to flash via UART ==
163
164
165 [[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]]
166
167
168 = 4. ST-Link v2 Upgrade =
169
170 == 4.1 Hardware Connections ==
171
172 === 4.1.1 LSN50 v2/LSN50v2-D22/LSN50v2-D23 Type ===
173
174
175 [[image:image-20220526174450-12.png||height="570" width="1162"]]
176
177 ST-Link Connections for LSn50 V2/LSN50v2-D22/LSN50v2-D23 Type
178
179
180 === 4.1.2 LGT92/LBT1 ST-Link v2 Connection ===
181
182
183 [[image:image-20220526174518-13.png]]
184
185
186 Connection to LGT92
187
188 * ST-LINK v2 5.0v  <~-~->  Dupont Cable red pin
189 * ST-LINK v2 GND  <~-~->  Dupont Cable black pin
190 * ST-LINK v2 SWCLK  <~-~->  Dupont Cable green pin
191 * ST-LINK v2 SWDIO  <~-~->  Dupont Cable white pin
192
193
194 === 4.1.3 LAQ4 ST-Link v2 Connection ===
195
196
197 [[image:image-20220526174602-14.png||height="506" width="922"]]
198
199 Connection to LAQ4
200
201
202 === 4.1.4 RS485-BL/LDDS75/LDDS20/LSE01 ===
203
204
205 [[image:image-20230306115123-4.png]]
206
207 Connection for RS485-BL base mother board
208
209
210 When use ST-Link v2 to update, need:
211
212 * ST-LINK v2 RESET  <~-~->  NRST
213 * ST-LINK v2 GND  <~-~->  GND
214 * ST-LINK v2 SWCLK  <~-~->  SWCLK
215 * ST-LINK v2 SWDIO  <~-~->  SWDIO
216 * ST-LINK (VDD 3.3v,pin19)  <~-~->  ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.
217
218
219 === 4.1.5 LTC2 ===
220
221
222 [[image:image-20230306112740-2.png]]
223
224 Connection for LTC2 base mother board
225
226
227 **Connection:**
228
229 * ST-LINK v2 GND  <~-~->  LTC2 GND
230 * ST-LINK v2 RESET  <~-~->  LTC2 NRST
231 * ST-LINK v2 SWCLK  <~-~->  LTC2 SWCLK
232 * ST-LINK v2 SWDIO  <~-~->  LTC2 SWDIO
233 * ST-LINK (VDD 3.3v,pin19)  <~-~->  ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.
234
235
236 = 4.2. Firmware upgrade using STM32 Cubeprogramer =
237
238
239 (% style="color:blue" %)**Step1:**(%%) Enter the download interface
240
241 [[image:image-20230222160658-1.png||height="479" width="827"]]
242
243
244 (% style="color:blue" %)**Step2:**(%%) Connect serial port correctly and select UART/ST-LINK
245
246 [[image:image-20230222160847-2.png||height="481" width="830"]]
247
248
249 (% style="color:blue" %)**Step3: **(%%)Select the file to download
250
251 [[image:image-20230222160947-3.png||height="473" width="818"]]
252
253
254 (% style="color:blue" %)**Step4: **(%%)Click to start programming, and wait for it to download to 100%, pop up a successful download box
255
256 [[image:image-20230222161119-4.png||height="476" width="821"]]
257
258
259 == 4.3 Trouble Shootings ==
260
261 === 4.3.1 ST-Link v2 can not detect the hardware ===
262
263
264 (% style="color:#4f81bd" %)**Possible Issue 1:**
265
266 1. Make sure see the LED blink on the ST-Link and release the reset button during blinking.
267
268 (% style="color:#4f81bd" %)**Possible Issue 2:**
269
270 1. There are different version ST-Link v2. The white one as below is the most stable and recommended one.
271 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.
272
273 [[image:image-20220526175418-21.png]]
274
275 ST-Link upload issue
276
277
278 (% style="color:#4f81bd" %)**Possible Issue 3:**
279
280 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.
281
282 [[image:image-20220526175708-22.png]]
283
284 (((
285 RESET pin not function
286 )))
287
288 (((
289
290 )))
291
292 (((
293 (((
294 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.
295 )))
296 )))
297
298 (((
299 For LHT65 we recommend to use the white one show in possible issue 2.
300 )))
301
302 (((
303 For LGT92, if user use this type of ST-Link, please also connect the 5v to USB port of LGT92.
304 )))
305
306
307 === 4.3.2 ST-Link v2 detect the hardware but disconnect after click OK ===
308
309
310 [[image:image-20220526175755-23.png]]
311
312 Do not click OK, click Cancel
313
314
315 === 4.3.3 Old ST-LINK firmware/ST-LINK already use and USB communication error ===
316
317
318 (((
319 It may be that your stlink firmware is too old.
320 )))
321
322 (((
323 You can try these steps:
324 )))
325
326 (((
327 You unplug the stlink, and then plug in the stlink again.
328 )))
329
330 (((
331 You click **ST-LINK  ->  Firmware update.**
332 )))
333
334 [[image:image-20220526175855-24.png]]
335
336 (% style="color:blue" %)**step1: **(%%) click Device connect.
337
338
339
340 [[image:image-20220526175954-25.png]]
341
342 [[image:image-20220526180013-26.png]]
343
344 (% style="color:blue" %)**step2: **(%%) Click yes to upgrade successfully.
345
346
347
348 == 5. Other Method ==
349
350
351 (((
352 (% 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]]
353 )))
354
355 (((
356 (% style="color:blue" %)**Step 2: **(%%)Download the Image files, firmware download link can be found on the product user manual.
357 )))
358
359 (((
360 (% style="color:blue" %)**Step 3:**(%%) Open ST-LINK utility, file ~-~-> open file to select the image to be upgraded.
361 )))
362
363 (((
364 (% style="color:blue" %)**Step 4:**
365 )))
366
367 * 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.
368 * 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.
369
370 [[image:image-20220526175243-19.png]]
371
372 Click Global Icon
373
374
375 (% 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.
376
377
378 [[image:image-20220526175307-20.png]]
379
380 Do not click OK, click Cancel
381
382
383 (% 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.
384
385 [[image:image-20220701171857-1.png]]
386
387 ST-Link v2 Upgrade
388
389

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