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backlight working

This commit is contained in:
Jorj Bauer 2022-01-18 17:18:12 -05:00
parent f1c8b7ba04
commit d7b833da61
1 changed files with 4 additions and 2 deletions
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6
teensy/RA8875_t4.cpp
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@ -163,8 +163,10 @@ void RA8875_t4::_initializeTFT()
delay(1);
fillWindow(); // defaults to black
_writeRegister(RA8875_GPIOX, true); // turn on backlight
// turn on backlight
_writeRegister(RA8875_P1CR, (RA8875_PxCR_ENABLE | (RA8875_PWM_CLK_DIV1024 & 0xF)));
_writeRegister(RA8875_P1DCR, 255); // brightness
// set graphics mode & default memory write order/behavior
_writeRegister(RA8875_MWCR0, 0x00);