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27 lines
895 B
C
27 lines
895 B
C
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#pragma once
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// Data specific to the Waveshare35b display
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#ifdef WAVESHARE35B_ILI9486
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// SPI_BUS_CLOCK_DIVISOR specifies how fast to communicate the SPI bus at. Possible values
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// are 4, 6, 8, 10, 12, ... Smaller values are faster. On my Waveshare35b display, the
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// following values were observed to work (on a Pi 3B):
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// core_freq=400: CDIV=14, results in 28.57MHz
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// core_freq=255: CDIV=8, results in 31.875MHz
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// While the following values were seen to not work:
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// core_freq=400: CDIV=12, would result in 33.33MHz, but this was too fast for the display
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// core_freq=256: CDIV=8, would result in 32.00MHz, this would work 99% of the time, but occassionally every ~few minutes would glitch a pixel or two
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#if !defined(GPIO_TFT_DATA_CONTROL)
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#define GPIO_TFT_DATA_CONTROL 24
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#endif
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#if !defined(GPIO_TFT_RESET_PIN)
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#define GPIO_TFT_RESET_PIN 25
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#endif
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#endif
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