qmk_firmware/keyboards/handwired/d48/ds1307.c
Andrew Dunai 1f7bbf279c
[Keyboard] Added D48 keyboard ()
* [Keyboard] Added D48 keyboard.

* Updated README.

* Cleanups.

* Moved d48 to handwired/

* Added link to build process album.

* Coding conventions cleanups.

* Added DS1307 RTC!

* Minor cleanups.

* Apply suggestions from code review

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Minor refactoring.

* Readme fix.

* Moved leftover keymap-specific code from keyboard space into keymap.

* Added encoder button pins to extra matrix row.

* Updated README, updated pinout & cleaned up the glcdfont

* Apply suggestions from code review

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update config.h

* Apply suggestions from code review

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Added default keymap. Refactored existing keymap.

* Update keyboards/handwired/d48/README.md

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Apply suggestions from code review

Co-Authored-By: Joel Challis <git@zvecr.com>

* Minor alignment fix.

* Update keyboards/handwired/d48/glcdfont_d48.c

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Changes as per PR.

* Apply suggestions from code review

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>
2020-05-08 23:59:50 -07:00

21 lines
695 B
C

#include "ds1307.h"
#include "i2c_master.h"
void ds1307_set_time(uint8_t h, uint8_t m, uint8_t s) {
uint8_t data[] = {
((s % 10) | ((s / 10) << 4)) & 0x7F,
((m % 10) | ((m / 10) << 4)) & 0x7F,
((h % 10) | ((h / 10) << 4)) & 0x3F,
0, 0, 0, 0, 0
}; // 24-hour mode
i2c_writeReg(DS1307_ADDR, 0, data, 8, 100);
}
void ds1307_get_time(uint8_t *h, uint8_t *m, uint8_t *s) {
uint8_t data[3];
i2c_readReg(DS1307_ADDR, 0, data, 3, 100);
i2c_stop();
*s = (data[0] & 0b1111) + ((data[0] & 0b1110000) >> 4) * 10;
*m = (data[1] & 0b1111) + ((data[1] & 0b1110000) >> 4) * 10;
*h = (data[2] & 0b1111) + ((data[2] & 0b0110000) >> 4) * 10;
}