Hardware » Minutnik » Minutnik eInk

03.11.2022

15:02 Fehler #298 (Erledigt): Temperature-Sensor, Flash etc are permanently on VDD

There is already an switch for Display.
Temperature-sensor and FLASH can be connected to this power source.
Need ... Maximilian Seesslen

02.11.2022

10:52 Fehler #288 (Erledigt): Device No.2 freezes when connected to USB

The BOOT-Resistor was way too high (1M Ohm).
Replace it with 10K-Ohm worked.
Maximilian Seesslen

31.10.2022

12:47 Fehler #288: Device No.2 freezes when connected to USB

Seems the very high BOOT-resistor was the problem.
Maximilian Seesslen

29.10.2022

18:11 Fehler #294 (Erledigt): L1: Footprint 1206 instead of real 1210

Maximilian Seesslen

28.10.2022

22:17 Fehler #288: Device No.2 freezes when connected to USB

Could reproduce it also with serno.1.
The disturbtion on VDD is quite high when USB is connected (ca. 24ns breakdown... Maximilian Seesslen

14:35 Unterstützung #292 (Erledigt): Power injection pins 3V missing

One additional testpoint for 3V would help to measure power consumtion of MCU side.
Maximilian Seesslen

26.10.2022

14:45 Fehler #288: Device No.2 freezes when connected to USB

Is USB power to low?
Maximilian Seesslen

14:40 Fehler #291 (Erledigt): ADC Spannungsteiler ist permanent

Route the ground to an GPIO so it can be disabled and will be disabled when powered off.
Or even use an NMOS.
I m... Maximilian Seesslen

14:38 Fehler #290 (Neu): Yellow and red LEDs are quite dark

This is only noticable with lighttramitters which blocks/diffuse some light.
Maximilian Seesslen

25.10.2022

11:03 Fehler #288 (Erledigt): Device No.2 freezes when connected to USB

Device No.1 can not reproduce this.
Maybe Brownout-detection fails. Check other groups.
OB_BOR_LEVEL3: Supp... Maximilian Seesslen

06.10.2022

10:49 Fehler #268: USB-LED missing

This can be done via heartbeat LED.
Having the LDO-LED as generic "on"-LED on GPIO makes sense to visualise crashed ... Maximilian Seesslen

10:44 Fehler #266 (Erledigt): Dont use JTAG-RESET as LED

Disabling debigging in standby does the trick. Maximilian Seesslen

10:43 Fehler #267 (Erledigt): Multiple Wakeup-pins are not working

Workaround works.
As described in the stm32 errata, the device can not be powered off when usb is connected (WKUP2 s... Maximilian Seesslen

10:38 Fehler #272 (Abgewiesen): PIN Standby verification

Just disable debug in standby mode.
Maximilian Seesslen

10:20 Fehler #272: PIN Standby verification

Just disable debug in standby mode.
According to "reference manual":https://www.st.com/resource/en/reference_manual/... Maximilian Seesslen