US 2025/0028666 A1Published application

DEVICE CAPABLE OF DIRECTLY DIVERTING DATA THROUGH UART PORT AND USB to UART CONVERTER HAVING THE SAME

AssigneeProlific Technology Inc.

InventorsTIEN-WEI YU, CHUN-SHIU CHEN

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Abstract

A device capable of directly diverting data through UART port is disclosed. The device can be made to be an integrated circuit (IC) chip, so as to be disposed on a circuit board with a USB connector and three UART connectors, thereby forming a USB to UART converter. When using the USB to UART converter, the USB connector is connected to a host computer, and one UART connector is connected to an electronic device. As such, the device provides the host computer with one virtual COM port, such that the host computer is able to conduct a data transmission with the electronic device through the virtual COM port. Moreover, during the data transmission, a data monitoring electronic device is able to hear the transmitted data by way of diverting the transmitted data through the other two UART connectors.

Claims16

Dependent claims

A device capable of directly diverting data through UART port, comprising:

a USB unit, being used for establishing an electrical connection with a USB interface, so as to be in communication with a host electronic device 2 through the USB interface;
a first UART controller, being used for establishing an electrical connection with a first UART interface, so as to be in communication with an electronic device through the first UART interface;
a second UART controller, being used for establishing an electrical connection with a second UART interface, so as to be in communication with a data monitoring electronic device through the second UART interface;
a third UART controller, being used for establishing an electrical connection with a third UART interface, so as to be in communication with the data monitoring electronic device through the third UART interface;
a control endpoint (EP0), being coupled to the USB unit;
an interface unit, being coupled to the USB unit;
a data buffer unit, being coupled to the interface unit;
a FIFO unit, being coupled to the data buffer unit, and having a control buffer coupled to the first UART controller, the second UART controller and the third UART controller;
and
a data diverting unit, being coupled to the FIFO unit, the first UART controller, the second UART controller, and the third UART controller;
wherein in case of the electronic device transmitting a first serial data to the first UART controller through the first UART interface, the first UART controller receiving the first serial data by a first Baud rate, and then the data diverting unit transmits the first serial data to the third UART controller and the FIFO unit, such that the USB unit converts the first serial data to a first USB data after receiving the first serial data through the data buffer unit and the interface unit, thereby transmitting the first USB data to the host electronic device;
wherein after the host electronic device transmits a second USB data to the USB unit through the interface, the second USB data being subsequently transmitted to the FIFO unit via the interface unit and the data buffer unit, and then the data diverting unit transmits the second USB data to the first UART controller and the second UART controller after receiving the second USB data from the FIFO unit;
wherein the first UART controller converts the second USB data to a second serial data, so as to transmit the second serial data to the electronic device by said first Baud rate.

10 more elements

A USB to UART converter, comprising a printed circuit board, a USB connector, a first UART connector, a second UART connector, a third UART connector, and a bridge device, wherein the USB connector, the first UART connector, the second UART connector, the third UART connector, and the bridge device are all disposed on the printed circuit board, and the bridge device being electrically connected to the USB connector, the first UART connector, the second UART connector, and the third UART connector;

characterized in that the bridge device comprises:
a USB unit, being coupled to the USB connector, so as to be in communication with a host electronic device through the USB connector;
a first UART controller, being coupled to the first UART connector, so as to be in communication with an electronic device through the first UART connector;
a second UART controller, being coupled to the second UART connector, so as to be in communication with a data monitoring electronic device through the second UART connector;
a third UART controller, being coupled to the third UART connector, so as to be in communication with the data monitoring electronic device through the third UART connector;
a control endpoint (EP0), being coupled to the USB unit;
an interface unit, being coupled to the USB unit;
a data buffer unit, being coupled to the interface unit;
a FIFO unit, being coupled to the data buffer unit, and having a control buffer coupled to the first UART controller, the second UART controller and the third UART controller;
and
a data diverting unit, being coupled to the FIFO unit, the first UART controller, the second UART controller, and the third UART controller;
wherein in case of the electronic device transmitting a first serial data to the first UART controller through the first UART connector, the first UART controller receiving the first serial data by a first Baud rate, and then the data diverting unit transmits the first serial data to the third UART controller and the FIFO unit, such that the USB unit converts the first serial data to a first USB data after receiving the first serial data through the data buffer unit and the interface unit, thereby transmitting the first USB data to the host electronic device;
wherein after the host electronic device transmits a second USB data to the USB unit through the USB connector, the second USB data being subsequently transmitted to the FIFO unit via the interface unit and the data buffer unit, and then the data diverting unit transmits the second USB data to the first UART controller and the second UART controller after receiving the second USB data from the FIFO unit;
wherein the first UART controller converts the second USB data to a second serial data, so as to transmit the second serial data to the electronic device by said first Baud rate.

11 more elements

Dependencies are inferred from the claim text.