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Author: MikroElektronika Team
Last Updated: 2018-05-24
Category: CAN / LIN / RS485
Downloaded: 8844 times
Followed by: 2 users
RS485 click 3.3V is a RS422/485 transceiver Click board, which can be used as an interface between the TTL level UART and the RS422/485 communication bus.
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Library Description
Library initializes and defines GPIO driver and performs control of device voltage.
For more details check the documentation.
Key functions:
Example description
The application is composed of three sections:
void applicationTask()
{
char tmp;
uint8_t rdyFlag;
// RECEIVER - UART polling
rdyFlag = rs485_byteReady();
if (1 == rdyFlag)
{
tmp = rs485_readByte();
mikrobus_logWrite( &tmp, _LOG_BYTE );
}
// TRANSMITER - TX each 2 sec
/*
for (tmp = 0; tmp < 9; tmp++)
{
rs485_writeByte( MESSAGE_DATA[tmp] );
mikrobus_logWrite( "MESSAGE SENT", _LOG_LINE );
}
Delay_ms(2000);
*/
}
Other mikroE Libraries used in this example:
Additional notes and information
Depending on the development board you are using, you may need USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.