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Merge pull request #570 from mabartibin/dev-pcrtc

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Driver for PC style RTC, MC146818/DS1285/DS12885
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Wayne Warthen
2025-06-06 15:06:15 -07:00
committed by GitHub
parent a110b24d76 1813100142
commit edf3cf93bb
6 changed files with 395 additions and 0 deletions
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Source/Doc/Hardware.md
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@@ -2318,6 +2318,7 @@ Note:
| DSRTC | Maxim DS1302 Real-Time Clock w/ NVRAM |
| EZ80RTC | eZ80 Real-Time Clock |
| INTRTC | Interrupt-based Real Time Clock |
| PCRTC | MC146818/DS1285/DS12885 PC style |
| PCF | PCF8584-based I2C Real-Time Clock |
| RP5C01 | Ricoh RPC01A Real-Time Clock w/ NVRAM |
| SIMRTC | SIMH Simulator Real-Time Clock |

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Source/Doc/SystemGuide.md
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@@ -1416,6 +1416,7 @@ unit. The table below enumerates these values.
| RTCDEV_DS7 | 0x04 | Maxim DS1307 PCF I2C RTC w/ NVRAM | ds7rtc.asm |
| RTCDEV_RP5 | 0x05 | Ricoh RPC01A Real-Time Clock w/ NVRAM | rp5rtc.asm |
| RTCDEV_EZ80 | 0x07 | eZ80 on-chip RTC | ez80rtc.asm |
| RTCDEV_PC | 0x08 | MC146818/DS1285/DS12885 RTC w/ NVRAM | pcrtc.asm |
The time functions to get and set the time (RTCGTM and RTCSTM) require a
6 byte date/time buffer in the following format. Each byte is BCD