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fix(MiscDrivers): Refactor TFT SPI transmit for tft_ssd2119. #943

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merged 2 commits into from
Mar 6, 2024
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fix(MiscDrivers): Refactor TFT SPI transmit for tft_ssd2119. #943

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55ab894
fix(MiscDrivers): Refactor TFT SPI transmit for tft_ssd2119.
ahmetyazicii Mar 5, 2024
36107de
Merge branch 'analogdevicesinc:main' into main
ahmetyazicii Mar 6, 2024
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11 changes: 4 additions & 7 deletions Libraries/MiscDrivers/Display/tft_ssd2119.c
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Original file line number Diff line number Diff line change
Expand Up @@ -196,16 +196,9 @@ static void spi_transmit(void *datain, unsigned int count)
volatile uint16_t *u16ptrin = (volatile uint16_t *)datain;
unsigned int start = 0;

MXC_SPI_SetFrequency((mxc_spi_regs_t *)spi, tft_spi_freq);
MXC_SPI_SetDataSize((mxc_spi_regs_t *)spi, 9);

// HW requires disabling/renabling SPI block at end of each transaction (when SS is inactive).
spi->ctrl0 &= ~(MXC_F_SPI_CTRL0_EN);

// Setup the slave select
MXC_SETFIELD(spi->ctrl0, MXC_F_SPI_CTRL0_SS_ACTIVE,
((1 << ssel) << MXC_F_SPI_CTRL0_SS_ACTIVE_POS));

// number of RX Char is 0xffff
spi->ctrl1 &= ~(MXC_F_SPI_CTRL1_RX_NUM_CHAR);

Expand Down Expand Up @@ -526,6 +519,10 @@ static void tft_spi_init(void)
MXC_GPIO_SetVSSEL(g_spi_gpio.port, g_spi_gpio.vssel, g_spi_gpio.mask);
MXC_SPI_SetDataSize((mxc_spi_regs_t *)spi, 9);
MXC_SPI_SetWidth((mxc_spi_regs_t *)spi, SPI_WIDTH_STANDARD);
MXC_SPI_SetFrequency((mxc_spi_regs_t *)spi, tft_spi_freq);
// Setup the slave select
MXC_SETFIELD(spi->ctrl0, MXC_F_SPI_CTRL0_SS_ACTIVE,
((1 << ssel) << MXC_F_SPI_CTRL0_SS_ACTIVE_POS));
}

static void displayInit(void)
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