kingkevin
/
clapperboard
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

add example code using TM1637

This commit is contained in:
King Kévin 2017-02-08 12:44:34 +01:00
parent 8094ed6293
commit 25af0ba6eb
1 changed files with 27 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
main.c
View File

@ -42,6 +42,7 @@
#include "global.h" // board definitions
#include "usart.h" // USART utilities
#include "usb_cdcacm.h" // USB CDC ACM utilities
#include "led_tm1637.h" // TM1637 7-segment controller utilities
#define WATCHDOG_PERIOD 10000 /**< watchdog period in ms */
@ -183,12 +184,35 @@ void main(void)
uint32_t ticks_time = rtc_get_counter_val(); // get time from internal RTC (since first start/power up)
printf("uptime: %lu.%02lu:%02lu:%02lu\n", ticks_time/(60*60*24), (ticks_time/(60*60))%24, (ticks_time%(60*60))/60, (ticks_time%60)); // display uptime
// setup TM1637
printf("setup 7-segment display: ");
led_tm1637_setup();
if (!led_tm1637_time(88,88)) { // test display
fprintf(stderr,"could not send time to TM1637\n");
}
if (!led_tm1637_on()) { // switch on display
fprintf(stderr,"could not switch on TM1637\n");
}
for (uint32_t i=0; i<5000000; i++) { // wait a bit to have the user check the display
__asm__("nop");
}
if (!led_tm1637_text(" ")) { // clear display
fprintf(stderr,"could not clear\n");
}
if (!led_tm1637_off()) { // switch off display
fprintf(stderr,"could not switch off TM1637\n");
}
printf("OK\n");
// main loop
printf("command input: ready\n");
bool action = false; // if an action has been performed don't go to sleep
button_flag = false; // reset button flag
char c = '\0'; // to store received character
bool char_flag = false; // a new character has been received
if (!led_tm1637_on()) { // switch on display
fprintf(stderr,"could not switch on TM1637\n");
}
while (true) { // infinite loop
iwdg_reset(); // kick the dog
while (usart_received) { // data received over UART
@ -237,6 +261,9 @@ void main(void)
if ((ticks_time%(60))==0) { // one minute passed
printf("uptime: %lu.%02lu:%02lu:%02lu\n", ticks_time/(60*60*24), (ticks_time/(60*60))%24, (ticks_time%(60*60))/60, (ticks_time%60)); // display uptime
}
if (!led_tm1637_time((ticks_time%(60*60))/60, ticks_time%60)) {
fprintf(stderr,"could not set time on TM1637\n");
}
}
if (action) { // go to sleep if nothing had to be done, else recheck for activity
action = false;