First test on using mbed library with naked LPC1114 chip on breadboard. Blink LED pin 28, append UART test, procedure putc(), puts(), PWM beep 1kHz on pin 1.
Fork of lpc1114test by
main.cpp@6:01a61ae34a8a, 2013-11-09 (annotated)
- Committer:
- psimik
- Date:
- Sat Nov 09 22:40:39 2013 +0000
- Revision:
- 6:01a61ae34a8a
- Parent:
- 5:051be37cfef7
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Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sdizdarevic | 0:15ea674d67d9 | 1 | #include "mbed.h" |
psimik | 6:01a61ae34a8a | 2 | // naked LPC1114 on breadboard, install LED pin28, pasive piezo-buzzer pin1 |
psimik | 6:01a61ae34a8a | 3 | DigitalOut myled(dp28); // LED ... P0_7 (pin 28) |
psimik | 6:01a61ae34a8a | 4 | Serial uart(dp16, dp15); // UART .. P1_7: TX (pin 16), P1_6: RX (pin 15) |
psimik | 6:01a61ae34a8a | 5 | PwmOut pwm(dp1); // PWM ... P0_8: CT16B0_MAT0 (pin1); sorry, blocking SPI! |
sdizdarevic | 0:15ea674d67d9 | 6 | |
sdizdarevic | 0:15ea674d67d9 | 7 | int main() { |
psimik | 3:23f3f69678be | 8 | char c = '0'; |
psimik | 3:23f3f69678be | 9 | pwm.period(0.001); // PWM period 1ms (1kHz) |
psimik | 1:8aecb799ae5e | 10 | uart.baud(115200); // Baud rate |
psimik | 1:8aecb799ae5e | 11 | uart.puts("Start.\n\r"); |
psimik | 1:8aecb799ae5e | 12 | while(1) { // repeat (period 1sec) |
psimik | 1:8aecb799ae5e | 13 | myled = 0; // LED on |
psimik | 6:01a61ae34a8a | 14 | pwm = 0.5; // PWM duty cycle 50%, tone 1kHz |
psimik | 1:8aecb799ae5e | 15 | wait(0.5); |
psimik | 2:6b5d2029ec07 | 16 | uart.putc(c++); if (c > '9') c = '0'; // Put Character & rotate 0,1,2,... 9 |
psimik | 1:8aecb799ae5e | 17 | myled = 1; // LED off |
psimik | 6:01a61ae34a8a | 18 | pwm = 0; // PWM stop, silent |
psimik | 1:8aecb799ae5e | 19 | wait(0.5); |
psimik | 1:8aecb799ae5e | 20 | uart.puts(" Hello world.\n\r"); // Put String "Hello..." |
sdizdarevic | 0:15ea674d67d9 | 21 | } |
sdizdarevic | 0:15ea674d67d9 | 22 | } |