Programming - Ebyte E79-400DM2005S User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd
When designing the power supply circuit for the module, it is recommended to reserve more than 30% of the margin to
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achieve long-term stable operation of the system;
The installation location of the module should be as far away as possible from the power supply, transformers,
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high-frequency wiring and other parts with large electromagnetic interference;
High-frequency digital routing, high-frequency analog routing, and power routing must avoid module locations. If the
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wiring must pass under the module, assuming that the module is soldered to the Top Layer, the area where the module is in
contact with the Top Layer should be covered with copper (all copper is well grounded), and the area must be close to the digital
part of the module and routed in the Bottom Layer;
If the module is soldered or placed in the Top Layer, it is wrong to randomly route on the Bottom Layer or other layers,
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which will affect the spurs and receiving sensitivity of the module to varying degrees;
If there is a device with large electromagnetic interference around the module, it will greatly affect the performance of the
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module. It is recommended to maintain the distance from the module according to the strength of the interference. If
circumstances permit, it is recommended to do proper isolation and shielding;
If there are wirings with large electromagnetic interference around the module (such as high frequency digital, high
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frequency analog, power line), the performance of the module will be greatly affected. It is recommended to do proper isolation
and shielding;
Try to keep the module away from some physical layers such as the 2.4GHz TTL protocol, for example: USB3.0;
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The antenna installation structure has a great influence on the performance of the module. Make sure that the antenna is
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exposed and preferably vertical. When the module is installed inside the casing, it is recommended to use a good antenna
extension cable to extend the antenna to the outside of the casing;
The antenna must not be installed inside the metal case, which will greatly reduce the transmission distance.
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5.2 Programming

The core of this module is CC1352P, and the user can operate according to the CC1352P chip manual.
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Note:
The chip used inside the module is DC/DC mode.
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The Sub-1G band module comes with our own RF switch. Please follow the truth table strictly.
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Truth Table
Burning program: The module is a SOC module with its own GPIO port. Download the program using the XDS100
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downloader.
Program download interface definition:
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DIO_6 DIO_5
Low High
High Low
Transmit(TX) Receive(RX)
ON OFF
OFF ON
E79 Pins XDS100 Interfaces
JATG_TMSC TMS
JTAG_TCKC TCK
RESET_N SRSTN
GND DGND
VCC TVD
E79-400DM2005S User Manual
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