ejung/nowkas-iv-9-uhr
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apply timezone on displayed time

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Eggert Jung
2019-12-01 18:45:38 +01:00
parent 091a8c24e8
commit 9e934015e0
1 changed files with 9 additions and 0 deletions
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9
code/src/main.c
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@@ -57,6 +57,15 @@ int main(void){
cli(); cli();
DS3231_read(clock); DS3231_read(clock);
sei(); sei();
// convert from bcd and back
int8_t hour = (10 * (clock[2] & 0xF0)>>4) + (clock[2] & 0x0F);
hour += menu_val_timezone;
hour %= 24;
if(hour < 0)
hour = 24 + hour;
clock[2] = ((hour/10)<<4)|(hour % 10);
clock_to_buffer(clock); clock_to_buffer(clock);
PORTC = (PORTC & (~DOT)) | (clock[0]%2) << 4; // blink dots PORTC = (PORTC & (~DOT)) | (clock[0]%2) << 4; // blink dots