Release 0.2.24 - #380
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Release 0.2.24#380
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On a weak USB supply with no battery, the inrush when the external 5V output is switched on in begin() pulls a DCDC output below 85% of its setting, and the AXP2101 powers itself off (REG21 = 0x20) until the power key is pressed. Seen on the CoreS3 SE and Core2 v1.1 behind several USB hubs; the backlight flashes once and the board is silent. With cfg.output_power = false, or with the power-off disabled, they boot. M5GFX disables this power-off (REG23 bit4:0) when it first powers the panel, but begin() re-armed DCDC1/DCDC3 on the Core2 v1.1, which undid it before the external output came on. begin() now disables DCDC1-5 on the Core2 v1.1 and the CoreS3 family instead. A dip then resets the ESP32 through its brown-out detector rather than latching the PMIC off. The DCDC over-voltage power-off and the VSYS under-voltage power-off (VOFF) stay enabled. setExtOutput(false) on the Core2 v1.1 no longer suspends and restores the power-off around the 5V bus switch-over: it stays disabled. Checked on a Core2 v1.1 without battery: switching the output off still ends in a brown-out reset that recovers, as before.
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Fixes
begin()pulled a DCDC output below 85% and the AXP2101 powered itself off.begin()keeps the DCDC under-voltage power-off disabled (on the Core2 v1.1 it used to re-arm it); a dip now ends in an ESP32 brown-out reset that recovers.setExtOutput(false)on the Core2 v1.1 no longer suspends and restores it around the 5V bus switch-over.Internal