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firmware: FPGA "RTC" interface + offload SRAM loading

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ikari
2011-02-17 21:56:20 +01:00
parent cb202569d1
commit 00c6ed254e
7 changed files with 74 additions and 11 deletions
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22
src/rtc.c
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@@ -52,3 +52,25 @@ uint32_t get_fattime(void) {
((uint32_t)time.tm_min) << 5 |
((uint32_t)time.tm_sec) >> 1;
}
uint64_t get_bcdtime(void) {
struct tm time;
read_rtc(&time);
uint16_t year = time.tm_year + 1900;
return ((uint64_t)(time.tm_wday % 7) << 56)
|((uint64_t)((year / 1000) % 10) << 52)
|((uint64_t)((year / 100) % 10) << 48)
|((uint64_t)((year / 10) % 10) << 44)
|((uint64_t)(year % 10) << 40)
|((uint64_t)(time.tm_mon / 10) << 36)
|((uint64_t)(time.tm_mon % 10) << 32)
|((time.tm_mday / 10) << 28)
|((time.tm_mday % 10) << 24)
|((time.tm_hour / 10) << 20)
|((time.tm_hour % 10) << 16)
|((time.tm_min / 10) << 12)
|((time.tm_min % 10) << 8)
|((time.tm_sec / 10) << 4)
|(time.tm_sec % 10);
}