103 lines
2 KiB
Go
103 lines
2 KiB
Go
//go:build mch2022
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package board
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import (
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"machine"
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"time"
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"tinygo.org/x/drivers/ili9341"
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"tinygo.org/x/drivers/pixel"
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"tinygo.org/x/drivers/ws2812"
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)
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const (
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Name = "mch2022"
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)
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var (
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Power = dummyBattery{state: UnknownBattery} // unimplemented
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Sensors = baseSensors{}
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Display = mainDisplay{}
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Buttons = noButtons{}
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)
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func init() {
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AddressableLEDs = &ws2812LEDs{}
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}
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type mainDisplay struct{}
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func (d mainDisplay) Configure() Displayer[pixel.RGB565BE] {
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machine.LCD_MODE.Configure(machine.PinConfig{Mode: machine.PinOutput})
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machine.LCD_MODE.Low()
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machine.SPI2.Configure(machine.SPIConfig{
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Frequency: 80_000_000, // This is probably overclocking the ILI9341 but it seems to work.
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SCK: 18,
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SDO: 23,
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SDI: 35,
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})
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display := ili9341.NewSPI(machine.SPI2, machine.LCD_DC, machine.SPI0_CS_LCD_PIN, machine.LCD_RESET)
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display.Configure(ili9341.Config{
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Rotation: ili9341.Rotation90,
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})
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return display
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}
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func (d mainDisplay) MaxBrightness() int {
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return 0
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}
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func (d mainDisplay) SetBrightness(level int) {
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// Brightness is controlled by the rp2040 chip.
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}
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func (d mainDisplay) WaitForVBlank(defaultInterval time.Duration) {
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// The FPGA has a parallel output and can probably do tear-free updates, but
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// not the ESP32.
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dummyWaitForVBlank(defaultInterval)
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}
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func (d mainDisplay) PPI() int {
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return 166 // 320px / (48.96mm / 25.4)
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}
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func (d mainDisplay) ConfigureTouch() TouchInput {
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return noTouch{}
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}
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type ws2812LEDs struct {
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data [5]colorGRB
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}
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func (l *ws2812LEDs) Configure() {
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// Enable power to the LEDs
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power := machine.PowerOn
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power.Configure(machine.PinConfig{Mode: machine.PinOutput})
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power.High()
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// Initialize the WS2812 data pin.
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machine.WS2812.Configure(machine.PinConfig{Mode: machine.PinOutput})
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}
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func (l *ws2812LEDs) Len() int {
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return len(l.data)
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}
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func (l *ws2812LEDs) SetRGB(i int, r, g, b uint8) {
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l.data[i] = colorGRB{
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R: r,
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G: g,
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B: b,
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}
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}
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// Send pixel data to the LEDs.
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func (l *ws2812LEDs) Update() {
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ws := ws2812.Device{Pin: machine.WS2812}
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ws.Write(pixelsToBytes(l.data[:]))
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}
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