RTC-Test » Historie » Version 4
Maximilian Seesslen, 28.10.2025 16:32
| 1 | 1 | Maximilian Seesslen | h1. RTC-Test |
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| 2 | |||
| 3 | Companion board for eval-stm32f072xx. |
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| 4 | 3 | Maximilian Seesslen | This board should already implement much key features of helios. Switching on light by RTC should work. |
| 5 | 1 | Maximilian Seesslen | |
| 6 | * PMOSFET on RTC-Alarm-output enables max1450-blah so MCU is powered by battery. |
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| 7 | 4 | Maximilian Seesslen | * Enable-circuit from driver board (Switch 36V). At least isolate them from each other by 165 Ohm to limit current to 20mA. Both having 120Ohm is OK. |
| 8 | 1 | Maximilian Seesslen | * WKUP-Button |
| 9 | * Hold-PIN (Power MCU by battery but without RTC) |
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| 10 | 4 | Maximilian Seesslen | ** A second pin pulling down? Leave RTC_ALARM pin unconfigured? |
| 11 | 1 | Maximilian Seesslen | * Force-Button (Start MCU with battery) |
| 12 | 2 | Maximilian Seesslen | * LED VDD_BAT on enable-pin of max-blah |