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3		-**~ Contents:**
	3	+**~ Table of Contents:**
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5	5	{{toc/}}
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7	7
8	8	= 1. Introduction =
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	10	+
10	10	This introduction is to show how to compile the source code for Dragino's stm32 base products.
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14	14
15	15	== 2.1 Set up Keil Compile Environment ==
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	18	+
17	17	(((
18	18	Assuming you already have [[Keil uVision5>>url:https://www.keil.com/demo/eval/arm.htm]] installed, the steps below show how to install the MDK support and get a license.
19	19	)))
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21	21	(((
22		-~1. Open the Webpage: [[http:~~/~~/www2.keil.com/stmicroelectronics-stm32/mdk>>url:http://www2.keil.com/stmicroelectronics-stm32/mdk]]
	24	+**(% style="color:blue" %)1.**(%%)  Open the Webpage: [[http:~~/~~/www2.keil.com/stmicroelectronics-stm32/mdk>>url:http://www2.keil.com/stmicroelectronics-stm32/mdk]]
23	23	)))
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25	25	(((
26		-2. Download the **Keil MDK**, record the **PSN** here, we will use it later.
	28	+**(% style="color:blue" %)2.** (%%) Download the **(% style="color:blue" %)Keil MDK**(%%), record the **(% style="color:blue" %)PSN**(%%) here, we will use it later.
27	27	)))
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29	29	[[image:image-20220526180802-1.png]]
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38	38	(((
39	39	(((
40		-3. Login with an account that has administration rights.
	42	+**(% style="color:blue" %)3.**(%%)  Login with an account that has administration rights.
41	41	)))
42	42	)))
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44	44	(((
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46		-4. Right-click the µVision icon and select **Run as Administrator**… from the context menu.
47		-5: Open the dialog **File — License Management…** and select the **Single-User License** tab.
	48	+**(% style="color:blue" %)4.**(%%)  Right-click the µVision icon and select **Run as Administrator**… from the context menu.
	49	+**(% style="color:blue" %)5.**(%%)  Open the dialog **File — License Management…** and select the **Single-User License** tab.
48	48	)))
49	49	)))
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57		-6: Click the button **Get LIC via Internet...**, then click the button **OK** to register the product. This action opens the License Management page on the Keil web site.
	59	+**(% style="color:blue" %)6.  **(%%)Click the button **Get LIC via Internet...**, then click the button **OK** to register the product. This action opens the License Management page on the Keil web site.
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59	59	[[image:image-20220526180942-3.png]]
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65		-7.Enter the **Product Serial Number** (from step 2.) 4RMW3-A8FIW-TUBLG along with your contact information and click the button Submit. An e-mail is sent back with the License ID Code (LIC) within a few minutes.
	67	+**(% style="color:blue" %)7.** (%%) Enter the **(% style="color:blue" %)Product Serial Number**(%%) (from step 2.) 4RMW3-A8FIW-TUBLG along with your contact information and click the button Submit. An e-mail is sent back with the License ID Code (LIC) within a few minutes.
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67	67	[[image:image-20220526181014-4.png]]
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82	82	Active via mail
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85		-8. To activate the Software Product, **enter the LIC** in the field **New License ID Code (LIC)** of the dialog **License Management…** and click **Add LIC**.
	87	+**(% style="color:blue" %)8.** (%%) To activate the Software Product, **enter the LIC** in the field **New License ID Code (LIC)** of the dialog **License Management…** and click **Add LIC**.
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87	87	[[image:image-20220526181138-7.png]]
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93		-9. Finish Install Keil
	95	+(% style="color:blue" %)**9.  **(%%)Finish Install Keil
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95	95	[[image:image-20220526181207-8.png]]
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99	99
100	100	== 2.2 Install STM32L0 Series Device in Keil ==
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	104	+
102	102	(((
103		-1: Open the webpage: [[https:~~/~~/www.keil.com/dd2/stmicroelectronics/stm32l072cztx/#/eula-container>>url:https://www.keil.com/dd2/stmicroelectronics/stm32l072cztx/#/eula-container]];
	106	+**~1. ** Open the webpage: [[https:~~/~~/www.keil.com/dd2/stmicroelectronics/stm32l072cztx/#/eula-container>>url:https://www.keil.com/dd2/stmicroelectronics/stm32l072cztx/#/eula-container]];
104	104	)))
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106	106	(((
107		-2: Find STMicroelectronics **STM32L0 Series Device** and download it.
	110	+**2.**  Find STMicroelectronics **STM32L0 Series Device** and download it.
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	112	+
109	109	[[image:image-20220526181351-11.png]]
110	110	)))
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112	112	Finish install Keil
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115		-3: Find the Software Pack and install it.
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	120	+**3. ** Find the Software Pack and install it.
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117	117	[[image:image-20220526181302-10.png]]
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	125	+
120	120	Install the downloaded pack in Keil
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122		-
123	123	[[image:image-20220526181434-12.png]]
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125	125	Install the downloaded pack in Keil
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128		-4: Add the Device, then you can **rebuild** the project.
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	134	+**4. ** Add the Device, then you can **rebuild** the project.
	135	+
130	130	[[image:image-20220526181509-13.png]]
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132	132	rebuild project
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134	134
135		-Note: If you don’t add the Device, then Keil will report this error:
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	142	+**Note: If you don't add the Device, then Keil will report this error:**
	143	+
137	137	[[image:image-20220526181543-14.png]]
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139	139	Error without Device
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142	142	= 3. Get and compile Source Code =
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	151	+
144	144	* Get the source code for the product.
145	145	* Use Keil to open the project file.
146	146	* You can see the libraries related for example NBSN50 project as below:
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148	148	[[image:image-20220526181605-15.png]]
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150	150	project files
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152	152
153	153	= 4. Video Reference =
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	165	+
155	155	[[https:~~/~~/youtu.be/ctdUNx4XCEg>>url:https://youtu.be/ctdUNx4XCEg]]
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159	159
160	160	== 5.1 How to change the frequency band for LoRaWAN source code ==
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162	162	In Keil, you can see what frequency band the code support.
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164	164	[[image:image-20220526181628-16.png]]
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166	166	Support Frequency
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	181	+
169	169	If you want to change frequency, modify the Preprocessor Symbols. For example, change EU868 to US915 to complie a US915 firmware.
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171	171	[[image:image-20220526181651-17.png]]