cc3220板子老是连不上芯片，该怎么办啊？有没有现场技术支持啊？或者我们去您们的技术服务中心也行啊。这个问题都快半年了没法解决啊，急死人啊

参考如下文档操作Uniflash下载程序

Uniflash 进行程序的更新，下载到外部的SPI Flash中

使用操作参考

SimpleLink™ Wi-Fi® and Internet of Things
Solution CC3220, a Single-Chip Wireless MCU
Getting Started Guide

3.4 Download the Application
You can program any application to the SFLASH using the UniFlash tool. In case of CC3220SF device,
the application will be copied to the internal flash at the next device boot.
Do the procedure that follows to flash the Network Terminal application.
1. Run the UniFlash tool.
2. Select “CC3120 / CC3220” from the list of devices (you may type “CC3…” to the search tab to filter out
other devices).
Figure 3-5. UniFlash - Select Device
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Execute your First Application
3. Select Start Image Creator
Figure 3-6. UniFlash - Start Image Creator
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Execute your First Application
4. Click on New Project, as shown in Figure 3-7.
Figure 3-7. New Project
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Execute your First Application
5. Fill all the necessary fields properly. Make sure to select the correct device type (CC3220 for CC3220
and CC3220S device, CC3220SF for CC3220SF device) and click on Create Project, as shown in
Figure 3-8.
NOTE: Although not required for the first step of this Getting Started guide (which uses a
programmable image), it is recommended to put the device in Development mode to allow
JTAG operation so the image can be loaded by an IDE (which is described in Chapter 4).
Figure 3-8. Create Project
6. Click the Connect button as shown in Figure 3-9. Make sure the Serial terminal is not connected to the
device. Also, the SOP [2..0] configuration must be 010.
Figure 3-9. Connect and Disconnect
7. Once connected, click the Service Pack icon at bottom left.
NOTE: Flashing the service pack is not mandatory to develop the format of the device. However, if
the example to be debugged requires the service pack, the service pack can be programmed
with the development formatting.
8. Browse and select the service pack installed in Section 2.2.
3.4.1 Image Creation for Secure Device (CC3220S and CC3220SF)
1. Click on Trusted Root-Certificate Catalog on the lower-left side.
2. Uncheck the Use default Certificate Store checkbox and select Source File (.lst) and Signature Source
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File (.lst.signed.bin), available at <sdk-installation>\tools\certificate-playground, as shown in Figure 3-
10.
Figure 3-10. Certificate Store
3. Select User Files icon on lower-left side and click the Add File icon, as shown in Figure 3-11.
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Execute your First Application
Figure 3-11. Add File
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Execute your First Application
4. Select the following certificate files from <sdk-installation>\tools\certificate-playground and click Write,
as shown in Figure 3-12. Note that operation should be repeated to each of certificate files (that
compose a chain of trust):
• dummy-root-ca-cert
• dummy-trusted-ca-cert
• dummy-trusted-cert
Figure 3-12. Select Certificate File
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Execute your First Application
5. Select MCU Image from the drop-down menu, as shown in Figure 3-13.
Figure 3-13. Select MCU Image
6. Click Browse and select the application image
(<workspace>\network_terminal_CC3220SF_LAUNCHXL_tirtos_ccs\Debug\network_terminal_CC3220
SF_LAUNCHXL_tirtos_ccs.bin) to flash.

7. Make sure the "secure", "failsafe" and "Public Write" boxes are checked, and select the other files.
• Select Private Key File Name from the drop-down menu and browse the dummy-trusted-cert-key
file available at <sdk-installation>\tools\cc32xx_tools\certificate-playground. Select the available
Certificate File Name from the drop-down menu, as shown in Figure 3-14, and click Write.
Figure 3-14. Select Certificate File Name
8. Browse and select the service pack installed in Section 2.2.
9. Click on the icon.

10. Click on Program Image (Create & Program), as shown in Figure 3-15. This step might take a minute.