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92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/*****************************************************************************
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* | File : DEV_Config.cpp
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* | Author : Waveshare team
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* | Function :
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* | Info :
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* Image scanning
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* Please use progressive scanning to generate images or fonts
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*----------------
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* | This version: V1.0
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* | Date : 2018-01-11
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* | Info : Basic version
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*
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******************************************************************************/
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#include "nrf_drv_spi.h"
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#include "DEV_Config.h"
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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uint32_t EPD_MOSI_PIN = 5;
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uint32_t EPD_SCLK_PIN = 8;
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uint32_t EPD_CS_PIN = 9;
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uint32_t EPD_DC_PIN = 10;
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uint32_t EPD_RST_PIN = 11;
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uint32_t EPD_BUSY_PIN = 12;
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uint32_t EPD_BS_PIN = 13;
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static const nrf_drv_spi_t spi = NRF_DRV_SPI_INSTANCE(0);
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/******************************************************************************
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function: Initialize Arduino, Initialize Pins, and SPI
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parameter:
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Info:
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******************************************************************************/
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UBYTE DEV_Module_Init(void)
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{
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nrf_gpio_cfg_output(EPD_CS_PIN);
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nrf_gpio_cfg_output(EPD_DC_PIN);
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nrf_gpio_cfg_output(EPD_RST_PIN);
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nrf_gpio_cfg_input(EPD_BUSY_PIN, NRF_GPIO_PIN_NOPULL);
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nrf_gpio_cfg_output(EPD_BS_PIN);
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DEV_Digital_Write(EPD_BS_PIN, 0);
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nrf_drv_spi_config_t spi_config =
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{
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.sck_pin = EPD_SCLK_PIN,
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.mosi_pin = EPD_MOSI_PIN,
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.miso_pin = NRF_DRV_SPI_PIN_NOT_USED,
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.ss_pin = NRF_DRV_SPI_PIN_NOT_USED,
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.frequency = NRF_DRV_SPI_FREQ_4M,
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.mode = NRF_DRV_SPI_MODE_0,
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};
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nrf_drv_spi_init(&spi, &spi_config, NULL);
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DEV_Digital_Write(EPD_DC_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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DEV_Digital_Write(EPD_RST_PIN, 1);
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return 0;
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}
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/*********************************************
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function: Hardware interface
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note:
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SPI4W_Write_Byte(value) :
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Register hardware SPI
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*********************************************/
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void DEV_SPI_WriteByte(UBYTE value)
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{
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nrf_drv_spi_transfer(&spi, &value, 1, NULL, 0);
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}
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UBYTE DEV_SPI_ReadByte(void)
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{
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UBYTE value;
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nrf_drv_spi_transfer(&spi, NULL, 0, &value, 1);
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return value;
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}
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void DEV_Module_Exit(void)
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{
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DEV_Digital_Write(EPD_DC_PIN, 0);
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DEV_Digital_Write(EPD_CS_PIN, 0);
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//close 5V
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DEV_Digital_Write(EPD_RST_PIN, 0);
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nrf_drv_spi_uninit(&spi);
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}
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