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1 Contents:
2
3 {{toc/}}
4
5 = 1. Introduction =
6
7 This instruction shows how to upgrade firmware for Dragino products base on STM32 solution. The upgrade can use 2 hardware connections: **UART upgrade** or **ST Link v2 upgrade**. Some models supports both methods and some only one of them.
8
9 = 2. Hardware Upgrade Method Support List =
10
11 (% border="1" style="background-color:#ffffcc; color:green; width:891.222px" %)
12 |=(% colspan="3" style="width: 888px;" %)Dragino STM32 base hardware Upgrade Methods
13 |(% style="width:444px" %)**Model**|(% style="width:239px" %)**UART Connection**|(% style="width:204px" %)**ST-Link Connection**
14 |(% style="width:444px" %)[[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:239px" %)Hardware Connect Photo|(% style="width:204px" %)Hardware Connect Photo
15 |(% style="width:444px" %)[[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:239px" %)×|(% style="width:204px" %)[[Hardware Connect Photo>>url:https://wiki.dragino.com/index.php/Firmware_Upgrade_Instruction_for_STM32_base_products#LGT92.2FLBT1_ST-Link_v2_Connection]]
16 |(% style="width:444px" %)[[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:239px" %)Hardware Connect Photo|(% style="width:204px" %)×
17 |(% style="width:444px" %)[[LHT65>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/151-lht65.html]]|(% style="width:239px" %)×|(% style="width:204px" %)Hardware Connect Photo
18 |(% style="width:444px" %)[[RS485-LN>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/154-rs485-ln.html]]|(% style="width:239px" %)Hardware Connect Photo|(% style="width:204px" %)×
19 |(% style="width:444px" %)[[LSN50 v2>>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(((
20 [[LDDS75>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/161-ldds75.html]]
21 )))|(% style="width:239px" %)[[Hardware Connect Photo>>url:https://wiki.dragino.com/index.php/Firmware_Upgrade_Instruction_for_STM32_base_products#LSN50_v2.2FLSN50v2-D22.2FLSN50v2-D23]]|(% style="width:204px" %)[[Hardware Connect Photo>>url:https://wiki.dragino.com/index.php/Firmware_Upgrade_Instruction_for_STM32_base_products#LSN50_v2.2FLSN50v2-D22.2FLSN50v2-D23_Type]]
22 |(% style="width:444px" %)[[LAQ4>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/174-laq4.html]]|(% style="width:239px" %)×|(% style="width:204px" %)[[Hardware Connect Photo>>url:https://wiki.dragino.com/index.php/Firmware_Upgrade_Instruction_for_STM32_base_products#LAQ4_ST-Link_v2_Connection]]
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 |(% 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
26
27 = 3. UART Upgrade Guide =
28
29 == 3.1 Hardware Connection ==
30
31 === 3.1.1 LSN50 v1 ===
32
33 [[File:STM32 UART Upgrade 1.png>>url:https://wiki.dragino.com/index.php?title=Special:Upload&wpDestFile=STM32_UART_Upgrade_1.png]]
34
35 Connection for LSN50 v1
36
37 === 3.1.2 LSN50 v2/LSN50v2-D22/LSN50v2-D23 ===
38
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"]]
40
41 Connection for LSN50 Type V2
42
43 === 3.1.3 RS485-BL/LDDS75/LDDS20/LSE01 ===
44
45 [[image:https://wiki.dragino.com/images/thumb/b/ba/STM32_UART_Upgrade_RS485-BL.jpg/600px-STM32_UART_Upgrade_RS485-BL.jpg||height="412" width="600"]]
46
47 Connection for RS485-BL base mother board
48
49 For UART Update, need:
50
51 * Connect USB-TTL TXD <~-~-> Device UART_RX
52 * Connect USB-TTL RXD <~-~-> Device UART_TX
53 * Connect USB-TTL GND <~-~-> Device GND
54 * Put Switch SW1 to ISP position
55 * Connect JP2 jumper (Yellow one), so device is power on.
56
57
58 == 3.2 Upgrade Steps ==
59
60 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]].
61
62 Step 2: Download the Image files, which can be found in the product user manual.
63
64 Step 3: Open Flashloader; choose the correct COM port to update, Please notice that the serial setting must follow below photos.
65
66 Step 4: Set The device into **ISP Mode**. Then Press the **Reset Button**, In the Flash tool, click next and the tool will detect the board type.
67
68 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.
69
70 [[image:https://wiki.dragino.com/images/thumb/0/0e/STM32_UART_Upgrade_3.png/600px-STM32_UART_Upgrade_3.png||height="361" width="600"]]
71
72 UART Upgrade
73
74 [[image:https://wiki.dragino.com/images/thumb/4/49/STM32_UART_Upgrade_4.png/600px-STM32_UART_Upgrade_4.png||height="359" width="600"]]
75
76 UART Upgrade
77
78 [[image:https://wiki.dragino.com/images/thumb/0/09/STM32_UART_Upgrade_5.png/600px-STM32_UART_Upgrade_5.png||height="385" width="600"]]
79
80 UART Upgrade
81
82 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.
83
84 Step 6: Always run AT+FDR after update firmware. This is to reset the device to factory settings of the new firmware.
85
86
87 \\
88
89 == 3.3 Trouble shooting ==
90
91 === 3.3.1 General Check List ===
92
93 1. Double check if follow up exactly the steps as manual.
94 1. Check if hardware works fine:
95 11. check if AT command works, in both TX/RX
96 11. check if the device are in upgrade mode, see product manual for upgrade mode indicator.
97 11. check if reset button works
98 1. If you use Windows10 system. Please change the flash loader to run in Windows7 compatibility mode.
99 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.
100
101
102 == 3.4 Flash Loader ~-~- Unable to Load data from this file ==
103
104 [[image:https://wiki.dragino.com/images/9/96/FlashLoader-troube_1.png||height="521" width="399"]]
105
106 Unable to Load data from this file
107
108 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 [[LSN5 Firmware>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Firmware/]] to avoid this happen.
109
110 == 3.5 Alternative method to flash via UART ==
111
112 [[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]]
113
114
115 = 4. ST-Link v2 Upgrade =
116
117 == 4.1 Hardware Connections ==
118
119 === 4.1.1 LSN50 v2/LSN50v2-D22/LSN50v2-D23 Type ===
120
121 [[image:https://wiki.dragino.com/images/thumb/3/38/STM32_STLINK_1.jpg/600px-STM32_STLINK_1.jpg||height="270" width="600"]]
122
123 ST-Link Connections for LSn50 V2/LSN50v2-D22/LSN50v2-D23 Type
124
125
126 === 4.1.2 LGT92/LBT1 ST-Link v2 Connection ===
127
128 [[image:https://wiki.dragino.com/images/thumb/a/a5/STM32_STLINK_Upgrade_1.png/600px-STM32_STLINK_Upgrade_1.png||height="388" width="600"]]
129
130 Connection to LGT92
131
132 * ST-LINK v2 5.0v <~-~-> Dupont red pin
133 * ST-LINK v2 GND <~-~-> Dupont black pin
134 * ST-LINK v2 SWCLK <~-~-> Dupont green pin
135 * ST-LINK v2 SWDIO <~-~-> Dupont white pin
136
137
138 === 4.1.3 LAQ4 ST-Link v2 Connection ===
139
140 [[image:https://wiki.dragino.com/images/thumb/0/03/STM32_STLINK_Upgrade_LAQ4.png/600px-STM32_STLINK_Upgrade_LAQ4.png||height="331" width="600"]]
141
142 Connection to LAQ4
143
144
145 === 4.1.4 RS485-BL/LDDS75/LDDS20/LSE01 ===
146
147 [[image:https://wiki.dragino.com/images/thumb/b/ba/STM32_UART_Upgrade_RS485-BL.jpg/600px-STM32_UART_Upgrade_RS485-BL.jpg||height="412" width="600"]]
148
149 Connection for RS485-BL base mother board
150
151 When use ST-Link v2 to update, need:
152
153 * ST-LINK v2 RESET <~-~-> NRST
154 * ST-LINK v2 GND <~-~-> GND
155 * ST-LINK v2 SWCLK <~-~-> SWCLK
156 * ST-LINK v2 SWDIO <~-~-> SWDIO
157 * ST-LINK (VDD 3.3v,pin19) <~-~-> ST-LINK (TVCC ,pin1) a wire to connect two pins of ST-Link together.
158
159 === 4.1.5 LTC2 ===
160
161 [[image:https://wiki.dragino.com/images/thumb/e/ea/LTC2-1.jpg/600px-LTC2-1.jpg||height="420" width="600"]]
162
163 Connection for LTC2 base mother board
164
165 Connection:
166
167 * ST-LINK v2 GND <~-~-> LTC2 GND
168 * ST-LINK v2 RESET <~-~-> LTC2 NRST
169 * ST-LINK v2 SWCLK <~-~-> LTC2 SWCLK
170 * ST-LINK v2 SWDIO <~-~-> LTC2 SWDIO
171
172
173 == 4.2 ST-Link Upgrade Guide ==
174
175 **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]]
176
177 **Step 2**: Download the Image files, firmware download link can be found on the product user manual.
178
179 **Step 3**: Open ST-LINK utility, file ~-~-> open file to select the image to be upgraded.
180
181 **Step 4**:
182
183 * 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.
184 * 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.
185
186 [[image:https://wiki.dragino.com/images/thumb/a/ae/STM32_ST-Link_Upgrade_2-1.png/600px-STM32_ST-Link_Upgrade_2-1.png||height="136" width="600"]]
187
188 Click Global Icon
189
190
191 **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
192
193 [[image:https://wiki.dragino.com/images/thumb/2/20/ST-LINK-troube_2.png/600px-ST-LINK-troube_2.png||height="366" width="600"]]
194
195 Do not click OK, click Cancel
196
197 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.
198
199 [[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"]]
200
201 ST-Link v2 Upgrade
202
203
204 == 4.3 Trouble Shootings ==
205
206 === 4.3.1 ST-Link v2 can not detect the hardware ===
207
208 Possible Issue 1:
209
210 1. Make sure see the LED blink on the ST-Link and release the reset button during blinking.
211
212
213 Possible Issue 2:
214
215 1. There are different version ST-Link v2. The white one as below is the most stable and recommended one.
216 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.
217
218 [[image:https://wiki.dragino.com/images/thumb/e/e4/ST-Link_upload_issue111.jpg/600px-ST-Link_upload_issue111.jpg||height="450" width="600"]]
219
220 ST-Link upload issue
221
222
223 Possible Issue 3:
224
225 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.
226
227 [[image:https://wiki.dragino.com/images/a/a3/ST-LINK-troube_4.png||height="337" width="406"]]
228
229 RESET pin not function
230
231 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.
232
233 For LHT65 we recommend to use the white one show in possible issue 2.
234
235 For LGT92, if user use this type of ST-Link, please also connect the 5v to USB port of LGT92
236
237
238 === 4.3.2 ST-Link v2 detect the hardware but disconnect after click OK ===
239
240 [[image:https://wiki.dragino.com/images/thumb/2/20/ST-LINK-troube_2.png/600px-ST-LINK-troube_2.png||height="366" width="600"]]
241
242 Do not click OK, click Cancel
243
244 === 4.3.3 Old ST-LINK firmware/ST-LINK already use and USB communication error ===
245
246 It may be that your stlink firmware is too old.
247
248 You can try these steps:
249
250 You unplug the stlink, and then plug in the stlink again.
251
252 You click ST-LINK->Firmware update.
253
254 [[image:https://wiki.dragino.com/images/thumb/f/f4/Stlink22.png/600px-Stlink22.png||height="401" width="600"]]
255
256 step1
257
258 click Device connect.
259
260 [[image:https://wiki.dragino.com/images/1/12/Stlink23.png||height="238" width="486"]]
261
262 step2
263
264 Click yes to upgrade successfully.
265
266 [[image:https://wiki.dragino.com/images/a/a2/Stlink24.png||height="128" width="230"]]
267
268 step3
269
270 [[Category>>url:https://wiki.dragino.com/index.php/Special:Categories]]:
271
272 * [[Pages with broken file links>>url:https://wiki.dragino.com/index.php?title=Category:Pages_with_broken_file_links&action=edit&redlink=1]]
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