kingkevin/led_clock-old
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add simple led demo

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This commit is contained in:
King Kévin 2016-02-18 11:02:28 +01:00
parent 3cb09b472c
commit a5818ebe07
1 changed files with 31 additions and 4 deletions
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35
main.c
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@ -33,6 +33,7 @@
#include "global.h" // board definitions
#include "usart.h" // USART utilities
#include "usb_cdcacm.h" // USB CDC ACM utilities
#include "led_ws2812b.h" // WS2812b LEDs utilities
/* flag set in interrupts to be processed in main taks */
volatile bool button_flag = false; // button has been presse
@ -109,22 +110,48 @@ int main(void)
nvic_enable_irq(BUTTON_IRQ); // enable interrupt
#endif
printf("welcome to the STM32F1 CuVoodoo example code\n"); // print welcome message
ws2812b_setup(); // setup WS2812b LEDs
printf("welcome to the CuVoodoo LED clock\n"); // print welcome message
led_on(); // switch on LED to indicate setup completed
bool action = false; // if an action has been performed don't go to sleep
button_flag = false; // reset button flag
char c; // to store received character
bool char_flag = false; // a new character has been received
/* toggle the LED with every transmitted character */
while (true) { // infinite loop
while (usart_received) { // echo every received character
action = true; // action has been performed
led_toggle(); // toggle LED
printf("%c",usart_getchar()); // transmit receive character
c = usart_getchar(); // store receive character
char_flag = true; // notify character has been received
}
while (cdcacm_received) { // echo every received character
action = true; // action has been performed
led_toggle(); // toggle LED
printf("%c",cdcacm_getchar()); // transmit receive character
c = usart_getchar(); // store receive character
char_flag = true; // notify character has been received
}
while (char_flag) {
char_flag = false; // reset flag
action = true; // action has been performed
printf("%c",c); // echo receive character
switch (c) {
case 'r': // set red color
ws2812b_set_rgb(0,0xff,0,0);
break;
case 'g': // set green color
ws2812b_set_rgb(0,0,0xff,0);
break;
case 'b': // set blue color
ws2812b_set_rgb(0,0,0,0xff);
break;
default: // set no color
ws2812b_set_rgb(0,0,0,0);
break;
}
ws2812b_transmit(); // transmit set color
}
while (button_flag) {
button_flag = false; // reset flag
@ -132,7 +159,7 @@ int main(void)
led_toggle(); // toggle LED
}
// go to sleep if nothing had to be done, else recheck for activity
if (action) {
if (action) {
action = false;
} else {
__WFI(); // go to sleep