hobbielektronika
Simple demo for the FRDM-KL25Z board to demonstrate communication via UART2
Dependencies: mbed
Fork of
06_frdm_uart2
by 
Istvan Cserny
Communication via UART2
Simple demo to demonstrate communication via UART2 module. Wire up the arrangement, find your virtual serial port at your computer and watch the transmission by using a terminal application.
The deafault settings are: 9600 bps, 8bit, no parity, 1 stop bit.
Hardware requirements:
- FRDM-KL25Z board
- FTDI cable (or similar USB to UART TTL converter device)
Wiring:
- FTDI RX to PTE22
- FTDI TX to PTE23
- FTDI GND to GND
- FTDI 5V to Vin (or FTDI 3.3V to 3V3)
main.cpp@1:03b6c60e3554, 2015-11-23 (annotated)
- Committer:
- icserny
- Date:
- Mon Nov 23 11:58:02 2015 +0000
- Revision:
- 1:03b6c60e3554
- Parent:
- 0:307548c79526
use CR+LF convention
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| icserny | 0:307548c79526 | 1 | /** 06_frdm_uart2 |
| icserny | 0:307548c79526 | 2 | * Simple demo to demonstrate communication via UART2 |
| icserny | 0:307548c79526 | 3 | * |
| icserny | 0:307548c79526 | 4 | * Hardware requirements: |
| icserny | 0:307548c79526 | 5 | * - FRDM-KL25Z board |
| icserny | 0:307548c79526 | 6 | * - USB-UART protocol converter (FTDI cable or similar) |
| icserny | 0:307548c79526 | 7 | * |
| icserny | 0:307548c79526 | 8 | * Wiring: |
| icserny | 0:307548c79526 | 9 | * FTDI RX to PTE22, FTDI TX to PTE23 |
| icserny | 0:307548c79526 | 10 | * FTDI GND to GND, FTDI 5V to Vin |
| icserny | 0:307548c79526 | 11 | */ |
| icserny | 0:307548c79526 | 12 | |
| icserny | 0:307548c79526 | 13 | |
| icserny | 0:307548c79526 | 14 | #include "mbed.h" |
| icserny | 0:307548c79526 | 15 | |
| icserny | 0:307548c79526 | 16 | DigitalOut myled(LED_GREEN); |
| icserny | 0:307548c79526 | 17 | Serial pc(PTE22, PTE23); |
| icserny | 0:307548c79526 | 18 | |
| icserny | 0:307548c79526 | 19 | int main() |
| icserny | 0:307548c79526 | 20 | { |
| icserny | 0:307548c79526 | 21 | int i = 0; |
| icserny | 1:03b6c60e3554 | 22 | pc.printf("Hello World!\r\n"); |
| icserny | 0:307548c79526 | 23 | |
| icserny | 0:307548c79526 | 24 | while (true) { |
| icserny | 0:307548c79526 | 25 | wait_ms(1000); // wait a small period of time |
| icserny | 0:307548c79526 | 26 | i++; // increment the variable |
| icserny | 0:307548c79526 | 27 | myled = !myled; // toggle a led |
| icserny | 0:307548c79526 | 28 | int s = myled; |
| icserny | 1:03b6c60e3554 | 29 | pc.printf("%d. ledstate = %d \r\n", i,s); // print variable i and LED state |
| icserny | 0:307548c79526 | 30 | } |
| icserny | 0:307548c79526 | 31 | } |