52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/* Drivers */
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#include "fsl_clock.h"
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#include "fsl_common.h"
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#include "fsl_edma.h"
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#include "fsl_gpio.h"
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/* Board */
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#include "peripherals.h"
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#include "pin_mux.h"
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/* LCD panel */
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#include "epd-spi/panel/lcd_generic_ssd1289.h"
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#define IMPL_LCD_COMMAND_BASE (*(uint16_t *)0x70000000)
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#define IMPL_LCD_DATA_BASE (*(uint16_t *)0x78000000)
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epd_ret_t epd_impl_write_command(void *handle, uint8_t *command, uint32_t len) {
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uint32_t param_len = (len - 1) / 2;
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IMPL_LCD_COMMAND_BASE = command[0];
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for (uint32_t i = 0; i < param_len; i++) {
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uint16_t le_param = (command[2 * i + 1] << 8) | command[2 * i + 2];
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IMPL_LCD_DATA_BASE = le_param;
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}
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return EPD_OK;
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}
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epd_ret_t epd_impl_write_data(void *handle, uint8_t *data, uint32_t len) {
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uint32_t data_len = (len / 2);
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for (uint32_t i = 0; i < data_len; i++) {
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IMPL_LCD_DATA_BASE = ((uint16_t *)data)[i];
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}
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return EPD_OK;
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}
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epd_ret_t epd_impl_reset(void *handle) {
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uint32_t delay = CLOCK_GetCoreSysClkFreq() / 50; /* 20 msec */
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GPIO_WritePinOutput(BOARD_INITPINS_TFT_RESET_GPIO, BOARD_INITPINS_TFT_RESET_PIN, 0U);
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for (uint32_t i = 0; i < delay; i++) {
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asm("nop");
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}
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GPIO_WritePinOutput(BOARD_INITPINS_TFT_RESET_GPIO, BOARD_INITPINS_TFT_RESET_PIN, 1U);
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return EPD_OK;
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} |