Last modified by Bei Jinggeng on 2024/02/02 11:51
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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:#f2f2f2; width:891.222px" %)
18 |=(% colspan="3" style="width: 888px;background-color:#D9E2F3;color:#0070C0" %)Dragino STM32 base hardware Upgrade Methods
19 |(% style="color:#0070c0; width:284px" %)**Model**|(% style="color:#0070c0; width:409px" %)**UART Connection**|(% style="color:#0070c0; 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="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 = 3. UART Upgrade Guide =
37
38 == 3.1 Hardware Connection ==
39
40 === 3.1.1 LSN50 v1 ===
41
42
43 [[image:image-20220526173641-1.png]]
44
45 Connection for LSN50 v1
46
47
48 === 3.1.2 LSN50 v2/LSN50v2-D22/LSN50v2-D23/LSN50v2-S31B ===
49
50
51 [[image:image-20220526173751-3.png||height="467" width="966"]]a
52
53 [[image:image-20240201094036-1.jpeg||height="662" width="951"]]
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
70 * **Connect USB-TTL RXD  <~-~-> Device UART_TX**
71
72 * **Connect USB-TTL GND <~-~-> Device GND**
73
74 * **Put Switch SW1 to ISP position**
75
76 * **Connect JP2 jumper (Yellow one), so device is power on.**
77
78 == 3.2 Upgrade Steps ==
79
80
81 (((
82 (% 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]].
83 )))
84
85 (((
86 (% style="color:blue" %)**Step 2:**(%%) Download the Image files, which can be found in the product user manual.
87 )))
88
89 (((
90 (% style="color:blue" %)**Step 3:**(%%) Open Flashloader; choose the correct COM port to update, Please notice that the serial setting must follow below photos.
91 )))
92
93 (((
94 (% 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.
95
96
97 (% 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.**
98
99
100 )))
101
102 [[image:image-20220526174302-11.png]]
103
104 UART Upgrade
105
106
107 [[image:image-20220526174231-10.png]]
108
109 UART Upgrade
110
111
112 [[image:image-20220526174202-9.png]]
113
114 (((
115 UART Upgrade
116
117
118 )))
119
120 (((
121 (% 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.
122 )))
123
124 (((
125 (% 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.
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
136 2. Check if hardware works fine:
137
138 * check if AT command works, in both TX/RX
139 * check if the device are in upgrade mode, see product manual for upgrade mode indicator.
140 * check if reset button works
141
142 3. If you use Windows10 system. Please change the flash loader to run in Windows7 compatibility mode.
143
144 4. 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.
145
146
147 == 3.4 Flash Loader ~-~- Unable to Load data from this file ==
148
149
150 [[image:image-20220526174137-8.png]]
151
152 (((
153 Unable to Load data from this file
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 == 3.5 Alternative method to flash via UART ==
164
165
166 [[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]]
167
168
169 = 4. ST-Link v2 Upgrade =
170
171 == 4.1 Hardware Connections ==
172
173 === 4.1.1 LSN50 v2/LSN50v2-D22/LSN50v2-D23 Type ===
174
175
176 [[image:image-20220526174450-12.png||height="570" width="1162"]]
177
178 ST-Link Connections for LSn50 V2/LSN50v2-D22/LSN50v2-D23 Type
179
180
181 === 4.1.2 LGT92/LBT1 ST-Link v2 Connection ===
182
183
184 [[image:image-20220526174518-13.png]]
185
186
187 **Connection to (% style="color:blue" %)LGT92(%%)**
188
189 * **ST-LINK v2 5.0v  <~-~->  Dupont Cable red pin**
190
191 * **ST-LINK v2 GND  <~-~->  Dupont Cable black pin**
192
193 * **ST-LINK v2 SWCLK  <~-~->  Dupont Cable green pin**
194
195 * **ST-LINK v2 SWDIO  <~-~->  Dupont Cable white pin**
196
197 === 4.1.3 LAQ4 ST-Link v2 Connection ===
198
199
200 [[image:image-20220526174602-14.png||height="506" width="922"]]
201
202 Connection to LAQ4
203
204
205 === 4.1.4 RS485-BL/LDDS75/LDDS20/LSE01 ===
206
207
208 [[image:image-20230306115123-4.png]]
209
210 Connection for RS485-BL base mother board
211
212
213 **When use (% style="color:blue" %)ST-Link v2(%%) to update, need:**
214
215 * **ST-LINK v2 RESET  <~-~->  NRST**
216
217 * **ST-LINK v2 GND  <~-~->  GND**
218
219 * **ST-LINK v2 SWCLK  <~-~->  SWCLK**
220
221 * **ST-LINK v2 SWDIO  <~-~->  SWDIO**
222
223 * **ST-LINK (VDD 3.3v,pin19)  <~-~->  ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.**
224
225 === 4.1.5 LTC2 ===
226
227
228 [[image:image-20230306112740-2.png]]
229
230 Connection for LTC2 base mother board
231
232
233 **Connection:**
234
235 * **ST-LINK v2 GND  <~-~->  LTC2 GND**
236
237 * **ST-LINK v2 RESET  <~-~->  LTC2 NRST**
238
239 * **ST-LINK v2 SWCLK  <~-~->  LTC2 SWCLK**
240
241 * **ST-LINK v2 SWDIO  <~-~->  LTC2 SWDIO**
242
243 * **ST-LINK (VDD 3.3v,pin19)  <~-~->  ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.**
244
245 = 4.2. Firmware upgrade using STM32 Cubeprogramer =
246
247 (% style="color:blue" %)**Step1: **(%%)download [[STM32 Cubeprogramer>>https://www.st.com/en/development-tools/stm32cubeprog.html#get-software]]
248
249 (% style="color:blue" %)**Step2:**(%%) Place the button on the base plate at the ISP and press the reset button
250
251 [[image:image-20240202115041-1.png||height="303" width="590"]]
252
253 (% style="color:blue" %)**Step3:**(%%) Enter the download interface
254
255 [[image:image-20230222160658-1.png||height="479" width="827"]]
256
257
258 (% style="color:blue" %)**Step4:**(%%) Connect serial port correctly and select UART/ST-LINK
259
260 [[image:image-20230222160847-2.png||height="481" width="830"]]
261
262
263 (% style="color:blue" %)**Step5: **(%%)Select the file to download
264
265 [[image:image-20230222160947-3.png||height="473" width="818"]]
266
267
268 (% style="color:blue" %)**Step6: **(%%)Click to start programming, and wait for it to download to 100%, pop up a successful download box
269
270 [[image:image-20230222161119-4.png||height="476" width="821"]]
271
272
273 == 4.3 Trouble Shootings ==
274
275 === 4.3.1 ST-Link v2 can not detect the hardware ===
276
277
278 (% style="color:#4f81bd" %)**Possible Issue 1:**
279
280 1. Make sure see the LED blink on the ST-Link and release the reset button during blinking.
281
282 (% style="color:#4f81bd" %)**Possible Issue 2:**
283
284 1. There are different version ST-Link v2. The white one as below is the most stable and recommended one.
285
286 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.
287
288 [[image:image-20220526175418-21.png]]
289
290 ST-Link upload issue
291
292
293 (% style="color:#4f81bd" %)**Possible Issue 3:**
294
295 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.
296
297 [[image:image-20220526175708-22.png]]
298
299 (((
300 RESET pin not function
301 )))
302
303
304 (((
305 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.
306 )))
307
308 (((
309 For LHT65 we recommend to use the white one show in possible issue 2.
310 )))
311
312 (((
313 For LGT92, if user use this type of ST-Link, please also connect the 5v to USB port of LGT92.
314 )))
315
316
317 === 4.3.2 ST-Link v2 detect the hardware but disconnect after click OK ===
318
319
320 [[image:image-20230329155923-2.png]]
321
322 Do not click OK, click Cancel
323
324
325 === 4.3.3 Old ST-LINK firmware/ST-LINK already use and USB communication error ===
326
327
328 (((
329 It may be that your stlink firmware is too old.
330 )))
331
332 (((
333 You can try these steps:
334 )))
335
336 (((
337 You unplug the stlink, and then plug in the stlink again.
338 )))
339
340 (((
341 You click **ST-LINK  ->  Firmware update.**
342 )))
343
344 [[image:image-20220526175855-24.png]]
345
346 (% style="color:blue" %)**step1: **(%%) click Device connect.
347
348
349
350 [[image:image-20220526175954-25.png]]
351
352 [[image:image-20220526180013-26.png]]
353
354 (% style="color:blue" %)**step2: **(%%) Click yes to upgrade successfully.
355
356
357 == 5. Other Method ==
358
359
360 ST-Link v2 Upgrade Guide
361
362
363 (((
364 (% 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]]
365 )))
366
367 (((
368 (% style="color:blue" %)**Step 2: **(%%)Download the Image files, firmware download link can be found on the product user manual.
369 )))
370
371 (((
372 (% style="color:blue" %)**Step 3:**(%%) Open ST-LINK utility, file ~-~-> open file to select the image to be upgraded.
373 )))
374
375 (((
376 (% style="color:blue" %)**Step 4:**
377 )))
378
379 * 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.
380
381 * 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.
382
383 [[image:image-20220526175243-19.png]]
384
385 Click Global Icon
386
387
388 (% style="color:blue" %)**Step 5**(%%)**:** **Please select the mode as Connect under reset. **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.
389
390
391 [[image:image-20230329155929-3.png]]
392
393 Do not click OK, click Cancel
394
395
396 (% 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.
397
398 [[image:image-20220701171857-1.png]]
399
400 ST-Link v2 Upgrade

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