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11 Threads found on edaboard.com: ht1380
Two possible explanations for the huge (nearly 2000 ppm) RTC clock deviation: - wrong crystal circuit with ht1380 - the read routine rtcGetDateTime() is erroneously activating the stop clock flag during read. We should see the respective sources. You can check the latter point by slowing down the RTC accesses (e.g. 2 or 5 sec delay) for test.
also read datasheet ht1380 and DS1302 #include #include < reg51.h> sbit CE = P0^0; sbit SCLK = P0^1; sbit IO = P0^2; /***************************************************************************/ /* Prototypes */ /*****************************************
Hi I4m trying to interface a PIC (f84) with a Serial timekeeper from Holtek ht1380, has anybody already written some routines to communicate with the ht1380?? What kind of routine should I use to read or write
Hi I4m trying to interface a M16c microcontroller with a Serial timekeeper from Holtek ht1380, has anybody already written some routines to communicate with the ht1380?? What kind of routine should I use to read or write
plz.... Any body help........................
good evening to all I am sudhakar. I am beginner in the microcontroller.i want to display ht 1380 rtc clock using m16c controller with c coding.plz help me Its very urgently required. Thanking you Regards Sudhakar
Dear all, Please help me to find out the Military grade versions of the following components, as even after my best efforts, I am failed to search out the same. The operating temperature above 100C will be sufficient for my purpose. 1) Microcontroller 8051 2) ADC 0820 3) RTC ht1380 4) Crystals 20MHz & 32.768KHz Regards, Mak
Here is example RTC interface 80c51 family. If your ht1380 is serial i2c RTC, this code is can be applied:
Do have interface the any rtc ever. I was interface with new rtc but i have holtech rtc ht1380 but i was not able to locate the datasheet for this chip so i wasn`t go fo prog. if you have it send it to me i try my best to help you.
Hai I am using ht1380 RTC with PIC. This chip has got only one Vdd how is the best arrangement for a battery backup for the chip with a lithium 3v cell? Also please link me any assembly programes for PIC with this or dallas DS13XX rtc chip.(I have c driver fo
You can find C sources to interface ht1380 (HT1381 is the same... only package changes) at the URL Bye