what is the correct VGH, VGL, AVDD, GVCL, GVCD for the m5stickc?
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I am writting the lcd driver for the m5stickc.
There are many libraries exist for m5stickc lcd display, but the parameters for those power voltage settings are variant, some lib even send more parameters than the register required.for example, in lib m5stickc
it send to register ST7735_PWCTR1 with 3 parameters [0xA4, 0x04, 0x84]but in the datasheet st7735sv
the register PWCTR1 only accept 2 parameters.
in the comment, it said "-4.6v" .
but the 2nd paramter 0x4 is indicate "-4.5v"for lib M5GFX, src/lgfx/v1/panel/Panel_ST7735.hpp
class Panel_ST7735S.
it still send to register CMD_PWCTR1 with 3 parameters [0xA2, 0x02, 0x84]so what is the correct value for those voltage (VGH, VGL, AVDD, GVCL, GVCD)
I can't find the schematic of m5stickc, so I can't find the right value for those voltage.
in the datasheet st7735sv , page 165,
it said "The deviation value of VGH/ VGL between with Measurement and Specification: Max <= 1V".
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