mirror of
https://github.com/jam422470459/EPD-nRF52-hema213.git
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224 lines
6.7 KiB
C
224 lines
6.7 KiB
C
/*****************************************************************************
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* | File : EPD_4in2.c
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* | Author : Waveshare team
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* | Function : 4.2inch e-paper
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* | Info :
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*----------------
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* | This version: V3.0
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* | Date : 2019-06-13
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* -----------------------------------------------------------------------------
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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******************************************************************************/
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#include "EPD_driver.h"
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#include "nrf_log.h"
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// Driver command list.
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#define CMD_PSR 0x00 // Panel Setting
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#define CMD_PWR 0x01 // Power Setting
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#define CMD_POF 0x02 // Power OFF
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#define CMD_PFS 0x03 // Power OFF Sequence Setting
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#define CMD_PON 0x04 // Power ON
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#define CMD_PMES 0x05 // Power ON Measure
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#define CMD_BTST 0x06 // Booster Soft Start
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#define CMD_DSLP 0x07 // Deep sleep
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#define CMD_DTM1 0x10 // Display Start Transmission 1
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#define CMD_DSP 0x11 // Data Stop
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#define CMD_DRF 0x12 // Display Refresh
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#define CMD_DTM2 0x13 // Display Start transmission 2
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#define CMD_LUTC 0x20 // VCOM LUT (LUTC)
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#define CMD_LUTWW 0x21 // W2W LUT (LUTWW)
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#define CMD_LUTBW 0x22 // B2W LUT (LUTBW / LUTR)
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#define CMD_LUTWB 0x23 // W2B LUT (LUTWB / LUTW)
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#define CMD_LUTBB 0x24 // B2B LUT (LUTBB / LUTB)
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#define CMD_PLL 0x30 // PLL control
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#define CMD_TSC 0x40 // Temperature Sensor Calibration
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#define CMD_TSE 0x41 // Temperature Sensor Selection
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#define CMD_TSW 0x42 // Temperature Sensor Write
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#define CMD_TSR 0x43 // Temperature Sensor Read
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#define CMD_CDI 0x50 // Vcom and data interval setting
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#define CMD_LPD 0x51 // Lower Power Detection
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#define CMD_TCON 0x60 // TCON setting
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#define CMD_TRES 0x61 // Resolution setting
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#define CMD_GSST 0x65 // GSST Setting
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#define CMD_REV 0x70 // Revision
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#define CMD_FLG 0x71 // Get Status
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#define CMD_AMV 0x80 // Auto Measurement Vcom
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#define CMD_VV 0x81 // Read Vcom Value
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#define CMD_VDCS 0x82 // VCM_DC Setting
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#define CMD_PTL 0x90 // Partial Window
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#define CMD_PTIN 0x91 // Partial In
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#define CMD_PTOUT 0x92 // Partial Out
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#define CMD_PGM 0xA0 // Program Mode
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#define CMD_APG 0xA1 // Active Progrmming
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#define CMD_ROTP 0xA2 // Read OTP
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#define CMD_CCSET 0xE0 // Cascade Setting
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#define CMD_PWS 0xE3 // Power Saving
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#define CMD_TSSET 0xE5 // Force Temperauture
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static void UC8176_WaitBusy(uint16_t timeout)
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{
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EPD_WaitBusy(LOW, timeout);
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}
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static void UC8176_PowerOn(void)
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{
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EPD_WriteCmd(CMD_PON);
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UC8176_WaitBusy(100);
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}
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static void UC8176_PowerOff(void)
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{
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EPD_WriteCmd(CMD_POF);
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UC8176_WaitBusy(100);
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}
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// Read temperature from driver chip
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int8_t UC8176_Read_Temp(void)
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{
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EPD_WriteCmd(CMD_TSC);
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UC8176_WaitBusy(100);
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return (int8_t)EPD_ReadByte();
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}
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// Force temperature (will trigger OTP LUT switch)
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void UC8176_Force_Temp(int8_t value)
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{
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EPD_Write(CMD_CCSET, 0x02);
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EPD_Write(CMD_TSSET, value);
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}
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void UC8176_Refresh(void)
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{
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NRF_LOG_DEBUG("[EPD]: refresh begin\n");
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UC8176_PowerOn();
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NRF_LOG_DEBUG("[EPD]: temperature: %d\n", UC8176_Read_Temp());
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EPD_WriteCmd(CMD_DRF);
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delay(100);
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UC8176_WaitBusy(30000);
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UC8176_PowerOff();
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NRF_LOG_DEBUG("[EPD]: refresh end\n");
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}
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static void _setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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{
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uint16_t xe = (x + w - 1) | 0x0007; // byte boundary inclusive (last byte)
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uint16_t ye = y + h - 1;
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x &= 0xFFF8; // byte boundary
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xe |= 0x0007; // byte boundary
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EPD_Write(CMD_PTL, // partial window
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x / 256, x % 256,
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xe / 256, xe % 256,
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y / 256, y % 256,
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ye / 256, ye % 256,
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0x01);
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}
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void UC8176_Init()
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{
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epd_model_t *EPD = epd_get();
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EPD_Reset(HIGH, 10);
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EPD_Write(CMD_PSR, EPD->bwr ? 0x0F : 0x1F);
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EPD_Write(CMD_CDI, EPD->bwr ? 0x77 : 0x97);
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}
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void UC8176_Clear(bool refresh)
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{
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EPD_FillRAM(CMD_DTM1, 0xFF);
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EPD_FillRAM(CMD_DTM2, 0xFF);
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if (refresh)
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UC8176_Refresh();
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}
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void UC8176_Write_Image(uint8_t *black, uint8_t *color, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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{
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epd_model_t *EPD = epd_get();
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uint16_t wb = (w + 7) / 8; // width bytes, bitmaps are padded
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x -= x % 8; // byte boundary
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w = wb * 8; // byte boundary
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if (x + w > EPD->width || y + h > EPD->height)
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return;
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EPD_WriteCmd(CMD_PTIN); // partial in
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_setPartialRamArea(x, y, w, h);
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if (EPD->bwr)
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{
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EPD_WriteCmd(CMD_DTM1);
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for (uint16_t i = 0; i < h; i++)
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{
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for (uint16_t j = 0; j < w / 8; j++)
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EPD_WriteByte(black ? black[j + i * wb] : 0xFF);
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}
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}
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EPD_WriteCmd(CMD_DTM2);
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for (uint16_t i = 0; i < h; i++)
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{
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for (uint16_t j = 0; j < w / 8; j++)
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{
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if (EPD->bwr)
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EPD_WriteByte(color ? color[j + i * wb] : 0xFF);
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else
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EPD_WriteByte(black[j + i * wb]);
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}
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}
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EPD_WriteCmd(CMD_PTOUT); // partial out
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}
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void UC8176_Sleep(void)
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{
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UC8176_PowerOff();
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EPD_Write(CMD_DSLP, 0xA5);
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}
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// Declare driver and models
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static epd_driver_t epd_drv_uc8176 = {
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.init = UC8176_Init,
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.clear = UC8176_Clear,
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.write_image = UC8176_Write_Image,
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.refresh = UC8176_Refresh,
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.sleep = UC8176_Sleep,
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.read_temp = UC8176_Read_Temp,
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.force_temp = UC8176_Force_Temp,
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.cmd_write_ram1 = CMD_DTM1,
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.cmd_write_ram2 = CMD_DTM2,
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};
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// UC8176 400x300 Black/White
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const epd_model_t epd_uc8176_420_bw = {
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.id = EPD_UC8176_420_BW,
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.drv = &epd_drv_uc8176,
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.width = 400,
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.height = 300,
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.bwr = false,
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};
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// UC8176 400x300 Black/White/Red
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const epd_model_t epd_uc8176_420_bwr = {
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.id = EPD_UC8176_420_BWR,
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.drv = &epd_drv_uc8176,
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.width = 400,
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.height = 300,
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.bwr = true,
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};
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