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Fix RP2040 with RPi type display

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RPi display requires 16 bit commands and slower DC and CS strobe timings.
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Bodmer committed 2021-11-05 00:09:42 +00:00
1 parent 9d33b3eac2
commit 0ad6de9161
5 files changed
+33 -11
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TFT_eSPI.cpp
+16 -4
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@@ -3093,7 +3093,11 @@ void TFT_eSPI::setWindow(int32_t x0, int32_t y0, int32_t x1, int32_t y1)
while (spi_get_hw(spi0)->sr & SPI_SSPSR_BSY_BITS) {};
DC_C;
#if !defined (SPI_18BIT_DRIVER)
spi_set_format(spi0, 8, (spi_cpol_t)0, (spi_cpha_t)0, SPI_MSB_FIRST);
#if defined (RPI_DISPLAY_TYPE) // RPi TFT type always needs 16 bit transfers
spi_set_format(spi0, 16, (spi_cpol_t)0, (spi_cpha_t)0, SPI_MSB_FIRST);
#else
spi_set_format(spi0, 8, (spi_cpol_t)0, (spi_cpha_t)0, SPI_MSB_FIRST);
#endif
#endif
spi_get_hw(spi0)->dr = (uint32_t)TFT_CASET;
@@ -3282,7 +3286,11 @@ void TFT_eSPI::drawPixel(int32_t x, int32_t y, uint32_t color)
// a busy check is not needed.
while (spi_get_hw(spi0)->sr & SPI_SSPSR_BSY_BITS) {};
DC_C;
spi_set_format(spi0, 8, (spi_cpol_t)0, (spi_cpha_t)0, SPI_MSB_FIRST);
#if defined (RPI_DISPLAY_TYPE) // RPi TFT type always needs 16 bit transfers
spi_set_format(spi0, 16, (spi_cpol_t)0, (spi_cpha_t)0, SPI_MSB_FIRST);
#else
spi_set_format(spi0, 8, (spi_cpol_t)0, (spi_cpha_t)0, SPI_MSB_FIRST);
#endif
spi_get_hw(spi0)->dr = (uint32_t)TFT_CASET;
while (spi_get_hw(spi0)->sr & SPI_SSPSR_BSY_BITS){};
@@ -3317,8 +3325,12 @@ void TFT_eSPI::drawPixel(int32_t x, int32_t y, uint32_t color)
#else
while (spi_get_hw(spi0)->sr & SPI_SSPSR_BSY_BITS) {};
DC_D;
spi_get_hw(spi0)->dr = (uint32_t)color>>8;
spi_get_hw(spi0)->dr = (uint32_t)color;
#if defined (RPI_DISPLAY_TYPE) // RPi TFT type always needs 16 bit transfers
spi_get_hw(spi0)->dr = (uint32_t)color;
#else
spi_get_hw(spi0)->dr = (uint32_t)color>>8;
spi_get_hw(spi0)->dr = (uint32_t)color;
#endif
#endif
/*
// Subsequent pixel reads work OK without draining the FIFO...