UM0239 datasheet(25/44 Pages) STMICROELECTRONICS

25 / 44 page

UM0239

Transmission sessions

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Transmission sessions

Click TX on the toolbar to open a transmission session and to display the Transmission

Monitor dialog box shown in Figure 13.

Figure 13.

Transmission Monitor dialog box

The textboxes display the content to be sent across the Mains in hexadecimal and ASCII

format, respectively.

Transmission methods

Two methods of transmission are available: Sequence and Continuous.

The Sequence method sends the content of textboxes across the Mains for selected

number of times (Nr. parameter) with a delay of 200 ms between transmissions. It is

important to note that each sequence transmitted is a single transmission session to ensure

that no Timeout issues occur if the message to transmit is not too long.

The Continuous method sends the content of the textboxes repeatedly across the Mains in a

single transmission until the transmission is interrupted by the user or by a Timeout event.

Note:

A maximum of 127 bytes can be transmitted to the MCU.

Transmitting data

EVALCOMMBOARD, the orange DL4 LED is turned on when a transmission begins.

When a Timeout Event occurs, the red DL2 LED is turned on.

Click ON to transmit the content of textboxes (that represents the data to be sent in both

hexadecimal and ASCII format) across the Mains.

Click Load File to load an ASCII or HEX text file in the textbox.

Click Close to close the Transmission Monitor dialog box.

ST7540 TRANSMISSION WINDOW

UM0239 数据表(PDF) 25 Page - STMicroelectronics