Integrator’s Reference Manual

Table 8-1. Troubleshooting Modem Problems (continued)

Problem

Possible Solutions

 

 

The modem does not seem to

■ Both the AC power

be getting power, even

connector on the diagnostic

though it is plugged in.

cable and the DC power

 

connector on the interface

 

cable are plugged in. Only

 

one can be used at a time.

 

■ DTR is not asserted on a

 

serial port. Connect one of

 

the modem’s serial ports

 

(Data, Control, or

 

Diagnostic).

 

 

AT commands that you type

■ Command echoing has been

in HyperTerminal do not

turned off. Type ATE1 or ATZ

appear on the screen.

to turn echoing back on.

 

 

AT commands are not

■ Check to see if the Control

recognized on the Data port.

port is active. AT commands

 

will not work on the Data

 

port when the Control port is

 

active.

 

 

HyperTerminal or Dial-Up

■ Make sure the baud rate in

Networking cannot talk to

HyperTerminal or Dial-Up

the modem.

Networking matches that

 

for the modem port. The

 

Control port is 9600 only;

 

the Data port default is

 

38400 but can be set to

 

selected rates from 300 to

 

115200.

 

 

8-2

80-99208-1 Rev. D

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Qualcomm GSP-1620 specifications Integrator’s Reference Manual Troubleshooting Modem Problems
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GSP-1620 specifications

Qualcomm GSP-1620 is a powerful, cutting-edge SoC (System on Chip) that is tailored for the demands of modern mobile and embedded applications. Designed to deliver high performance, energy efficiency, and advanced connectivity, the GSP-1620 stands out in the competitive landscape of processor solutions.

One of the main features of the GSP-1620 is its multi-core architecture, which facilitates simultaneous processing of multiple tasks. This architecture ensures enhanced multitasking capabilities, allowing devices to run complex applications smoothly without compromising performance. The GSP-1620 integrates Qualcomm's latest Kryo CPU technology, which optimizes performance while maintaining lower power consumption.

The GSP-1620 excels in graphics performance, powered by Adreno GPU technology. This integration enables rich visual experiences, making it ideal for gaming, augmented reality, and immersive multimedia applications. The GPU's capabilities allow for high frame rates and stunning graphics, ensuring that users enjoy a premium visual experience.

In terms of connectivity, the GSP-1620 supports advanced wireless technologies, including 5G, Wi-Fi 6, and Bluetooth 5. With these capabilities, users can expect ultra-fast data speeds, low latency, and improved networking performance. The integration of Qualcomm’s Snapdragon X55 modem enhances the SoC's capability to deliver seamless connectivity in various environments, whether indoors or outdoors.

Moreover, the GSP-1620 features cutting-edge AI and machine learning capabilities, enabled by Qualcomm’s Hexagon DSP technology. This allows for efficient processing of AI tasks, supporting functionalities such as voice recognition, image processing, and real-time translation. It makes the GSP-1620 suitable for applications in smart devices, automotive solutions, and industrial IoT.

Security is a priority in the design of the GSP-1620. The SoC incorporates hardware-based security features that protect sensitive data and applications, ensuring robust defense against cyber threats. This is vital for applications requiring high levels of security, such as mobile payments and confidential communications.

Lastly, the GSP-1620 is designed with scalability in mind. Its modular architecture allows manufacturers to customize the chipset according to specific needs, making it a versatile solution for a broad range of devices, from smartphones and tablets to wearables and embedded systems.

In summary, Qualcomm GSP-1620 combines high-performance processing, advanced graphics capabilities, sophisticated connectivity options, AI support, and robust security features. With these characteristics, it sets a new standard for mobile and embedded platforms, driving innovation in a variety of industries.
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