240 lines
6.3 KiB
Go
240 lines
6.3 KiB
Go
package display
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import (
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"context"
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"fmt"
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"image"
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"log"
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"math/rand"
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"time"
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"gitea.unprism.ru/yotia/display-test/pkg/mt12232a"
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)
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var _ = rand.Int() // TMP for import to exist
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type displayMt12232a struct {
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logger *log.Logger
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// GPIO pins
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dev mt12232a.Device
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}
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func newMt12232a(logger *log.Logger) (Display, error) {
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dev, err := mt12232a.New(log.New(logger.Writer(), "display-mt12864 : ", log.LstdFlags))
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if err != nil {
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return nil, fmt.Errorf("mt12864 create: %w", err)
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}
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// Allocate bits
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bits := make([][]byte, 32)
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for i := 0; i < 32; i++ {
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bits[i] = make([]byte, 122)
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}
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// if err := dev.PowerOn(); err != nil {
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// return nil, fmt.Errorf("power on: %w", err)
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// }
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// Setup submit goroutine
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d := displayMt12232a{
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logger: logger,
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dev: dev,
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}
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// Temp debug draw
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//if st0, st1 := d.dev.ReadStatus(0), d.dev.ReadStatus(1); false { //st0&0x20 == 0 && st1&0x20 == 0 {
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// d.logger.Println("Display is already on")
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//} else {
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d.status("Setup start")
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if err := d.dev.Reset(); err != nil {
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return nil, fmt.Errorf("reset: %w", err)
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}
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d.status("After reset")
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time.Sleep(200 * time.Millisecond)
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if st0, st1 := d.dev.ReadStatus(0), d.dev.ReadStatus(1); st0 == 0 && st1 == 0 {
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return nil, fmt.Errorf("No status response from dysplay")
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}
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if err := d.powerOn(); err != nil {
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return nil, fmt.Errorf("power on: %w", err)
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}
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d.status("Setup end")
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return &d, nil
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}
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func (d *displayMt12232a) status(label string) {
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//d.logger.Printf("STATUS %s -- L: %08b R: %08b\n", label, d.dev.ReadStatus(0)&0xFF, d.dev.ReadStatus(1)&0xFF)
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}
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func (d *displayMt12232a) powerOn() error {
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// Reset
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if err := d.dev.WriteCode(0, 0xE2); err != nil {
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return fmt.Errorf("reset: %w", err)
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}
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if err := d.dev.WriteCode(1, 0xE2); err != nil {
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return fmt.Errorf("reset: %w", err)
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}
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// ReadModifyWrite off
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if err := d.dev.WriteCode(0, 0xEE); err != nil {
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return fmt.Errorf("RMW off: %w", err)
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}
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if err := d.dev.WriteCode(1, 0xEE); err != nil {
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return fmt.Errorf("RMW off: %w", err)
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}
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// Turn on common mode
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if err := d.dev.WriteCode(0, 0xA4); err != nil {
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return fmt.Errorf("turn on common mode: %w", err)
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}
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if err := d.dev.WriteCode(1, 0xA4); err != nil {
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return fmt.Errorf("turn on common mode: %w", err)
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}
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// Multiplex 1/32
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if err := d.dev.WriteCode(0, 0xA9); err != nil {
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return fmt.Errorf("multiplex 1/32: %w", err)
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}
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if err := d.dev.WriteCode(1, 0xA9); err != nil {
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return fmt.Errorf("multiplex 1/32: %w", err)
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}
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// Top line to 0
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if err := d.dev.WriteCode(0, 0xC0); err != nil {
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return fmt.Errorf("top line to 0: %w", err)
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}
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if err := d.dev.WriteCode(1, 0xC0); err != nil {
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return fmt.Errorf("top line to 0: %w", err)
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}
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// Invert scan RAM
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if err := d.dev.WriteCode(0, 0xA1); err != nil {
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return fmt.Errorf("inver scan RAM: %w", err)
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}
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if err := d.dev.WriteCode(1, 0xA0); err != nil {
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return fmt.Errorf("inver scan RAM: %w", err)
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}
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// Display on
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if err := d.dev.WriteCode(0, 0xAF); err != nil {
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return fmt.Errorf("display on: %w", err)
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}
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if err := d.dev.WriteCode(1, 0xAF); err != nil {
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return fmt.Errorf("display on: %w", err)
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}
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//time.Sleep(time.Second)
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// Check that crystals are turned on
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// The same but with error
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if d.dev.ReadStatus(0)&0x20 != 0 {
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return fmt.Errorf("Left cristal is off")
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}
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if d.dev.ReadStatus(1)&0x20 != 0 {
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return fmt.Errorf("Right cristal is off")
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}
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return nil
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}
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func (d *displayMt12232a) Test(ctx context.Context) error {
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d.dev.WriteCode(0, 0xB8)
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d.dev.WriteCode(0, 0x14)
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d.dev.WriteData(0, 0xAE)
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start := time.Now()
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d.status("4")
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for p := 0; p < 4; p++ {
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// First
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// d.dev.WriteCode(0, byte(p)|0xB8)
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// d.dev.WriteCode(0, 0x13)
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// for c := 0; c < 61; c++ {
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// d.dev.WriteData(0, 0)
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// }
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// d.dev.WriteCode(1, byte(p)|0xB8)
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// d.dev.WriteCode(1, 0x00)
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// for c := 0; c < 61; c++ {
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// d.dev.WriteData(1, 0)
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// }
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//
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// Second
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d.dev.WriteCode(0, byte(p)|0xB8)
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d.dev.WriteCode(0, 0x13)
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for c := 0; c < 61; c++ {
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//d.dev.WriteDatas(0, []byte{byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2)})
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//d.dev.WriteData(0, byte(0xF0^(0xFF*(c%2))))
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d.dev.WriteData(0, byte(rand.Int()))
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// d.dev.WriteData(0, 0xFF)
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//d.dev.WriteData(0, byte(p*122+c))
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//time.Sleep(2 * time.Millisecond)
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}
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d.dev.WriteCode(1, byte(p)|0xB8)
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d.dev.WriteCode(1, 0x00)
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for c := 0; c < 61; c++ {
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//d.dev.WriteDatas(1, []byte{byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2), byte(rand.Int() % 2)})
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d.dev.WriteData(1, byte(rand.Int()))
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// d.dev.WriteData(1, 0xFF)
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//d.dev.WriteData(1, byte(4*int(p)+c))
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//d.dev.WriteData(1, byte(p*122+c+61))
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//d.dev.WriteData(1, byte(rand.Int())>>1)
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//time.Sleep(2 * time.Millisecond)
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}
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}
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d.status("9")
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end := time.Now()
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d.logger.Println(end.Sub(start))
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// for p := byte(0); p < 8; p++ {
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// d.dev.WriteCodeL(p | 0xB8)
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// d.dev.WriteCodeL(0x40)
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// for c := 0; c < 64; c++ {
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// d.dev.WriteDataL(Logo128[p][c])
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// }
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// d.dev.WriteCodeR(p | 0xB8)
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// d.dev.WriteCodeR(0x40)
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// for c := 64; c < 128; c++ {
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// d.dev.WriteDataR(Logo128[p][c])
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// }
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// }
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//d.dev.WriteCodeL(0xAF) // Display on
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//d.dev.WriteCodeR(0xAF) // Display on
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return nil
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}
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func (d *displayMt12232a) GetBounds() image.Rectangle {
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return image.Rect(0, 0, 122, 32)
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}
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func (d *displayMt12232a) Flush(img *image.Gray) error {
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for p := byte(0); p < 4; p++ {
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d.dev.WriteCode(0, (3-p)|0xB8)
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d.dev.WriteCode(0, 0x13)
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for c := 0; c < 61; c++ {
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d.dev.WriteDatas(0, []byte{
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img.Pix[int(p<<3+7)*122+c],
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img.Pix[int(p<<3+6)*122+c],
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img.Pix[int(p<<3+5)*122+c],
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img.Pix[int(p<<3+4)*122+c],
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img.Pix[int(p<<3+3)*122+c],
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img.Pix[int(p<<3+2)*122+c],
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img.Pix[int(p<<3+1)*122+c],
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img.Pix[int(p<<3+0)*122+c],
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})
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}
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d.dev.WriteCode(1, (3-p)|0xB8)
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d.dev.WriteCode(1, 0x00)
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for c := 61; c < 122; c++ {
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d.dev.WriteDatas(1, []byte{
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img.Pix[int(p<<3+7)*122+c],
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img.Pix[int(p<<3+6)*122+c],
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img.Pix[int(p<<3+5)*122+c],
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img.Pix[int(p<<3+4)*122+c],
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img.Pix[int(p<<3+3)*122+c],
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img.Pix[int(p<<3+2)*122+c],
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img.Pix[int(p<<3+1)*122+c],
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img.Pix[int(p<<3+0)*122+c],
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})
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}
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}
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return nil
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}
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func (d *displayMt12232a) Close() error {
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return d.dev.Close()
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}
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