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Code Issues Packages Projects Releases 10 Wiki Activity

SetPixel removed, formatting

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This commit is contained in:
k-brk
2019-05-04 15:37:10 +02:00
committed by Ron Evans
parent 4560c61c61
commit ba4de1efb8
5 changed files with 52 additions and 31 deletions
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.circleci/config.yml
+2 -2
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@@ -23,6 +23,8 @@ jobs:
- run: tinygo build -size short -o test.elf -target=itsybitsy-m0 ./examples/espat/espconsole/main.go
- run: tinygo build -size short -o test.elf -target=itsybitsy-m0 ./examples/espat/esphub/main.go
- run: tinygo build -size short -o test.elf -target=itsybitsy-m0 ./examples/espat/espstation/main.go
- run: tinygo build -size short -o test.elf -target=microbit ./examples/hd44780/customchar/main.go
- run: tinygo build -size short -o test.elf -target=microbit ./examples/hd44780/text/main.go
- run: tinygo build -size short -o test.elf -target=microbit ./examples/hub75/main.go
- run: tinygo build -size short -o test.elf -target=circuitplay-express ./examples/lis3dh/main.go
- run: tinygo build -size short -o test.elf -target=itsybitsy-m0 ./examples/mag3110/main.go
@@ -33,5 +35,3 @@ jobs:
- run: tinygo build -size short -o test.elf -target=circuitplay-express ./examples/thermistor/main.go
- run: tinygo build -size short -o test.elf -target=itsybitsy-m0 ./examples/vl53l1x/main.go
- run: tinygo build -size short -o test.elf -target=circuitplay-express ./examples/ws2812/main.go
- run: tinygo build -size short -o test.elf -target=microbit ./examples/hd44780/text/main.go
- run: tinygo build -size short -o test.elf -target=microbit ./examples/hd44780/customchar/main.go
examples/hd44780/customchar/main.go
+13 -2
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@@ -8,9 +8,20 @@ import (
func main() {
lcd, _ := hd44780.NewGPIO4Bit([]uint8{machine.P0, machine.P1, machine.P2, machine.P3}, machine.P4, machine.P5, machine.P6)
lcd, _ := hd44780.NewGPIO4Bit(
[]uint8{machine.P0, machine.P1, machine.P2, machine.P3},
machine.P4,
machine.P5,
machine.P6,
)
lcd.Configure(hd44780.Config{
Width: 16,
Height: 2,
CursorOnOff: true,
CursorBlink: true,
})
lcd.Configure(hd44780.Config{Width: 16, Height: 2, CursorOnOff: true, CursorBlink: true})
lcd.CreateCharacter(0x0, []byte{0x04, 0x0E, 0x0E, 0x0E, 0x0E, 0x1F, 0x04, 0x0})
lcd.Write([]byte{0x0})
lcd.Display()
examples/hd44780/text/main.go
+13 -2
View File
@@ -8,9 +8,20 @@ import (
func main() {
lcd, _ := hd44780.NewGPIO4Bit([]uint8{machine.P0, machine.P1, machine.P2, machine.P3}, machine.P4, machine.P5, machine.P6)
lcd, _ := hd44780.NewGPIO4Bit(
[]uint8{machine.P0, machine.P1, machine.P2, machine.P3},
machine.P4,
machine.P5,
machine.P6,
)
lcd.Configure(hd44780.Config{
Width: 16,
Height: 2,
CursorOnOff: true,
CursorBlink: true,
})
lcd.Configure(hd44780.Config{Width: 16, Height: 2, CursorOnOff: true, CursorBlink: true})
lcd.Write([]byte("This is a long line"))
lcd.Display()
hd44780/gpio.go
+5 -1
View File
@@ -62,6 +62,7 @@ func (g *GPIO) SetCommandMode(set bool) {
}
}
// Write writes len(data) bytes from data to display driver
func (g *GPIO) Write(data []byte) (n int, err error) {
g.rw.Low()
for _, d := range data {
@@ -87,11 +88,12 @@ func (g *GPIO) write4BitMode(data byte) {
g.e.Low()
}
// Read reads len(data) bytes from display RAM to data starting from RAM address counter position
// Ram address can be changed by writing address in command mode
func (g *GPIO) Read(data []byte) (n int, err error) {
if len(data) == 0 {
return 0, errors.New("Length greater than 0 is required")
}
g.rs.Low()
g.rw.High()
g.reconfigureGPIOMode(machine.GPIO_INPUT)
for i := 0; i < len(data); i++ {
@@ -111,12 +113,14 @@ func (g *GPIO) read4BitMode() byte {
g.e.Low()
return data
}
func (g *GPIO) read8BitMode() byte {
g.e.High()
data := g.pins()
g.e.Low()
return data
}
func (g *GPIO) reconfigureGPIOMode(mode machine.GPIOMode) {
for i := 0; i < len(g.dataPins); i++ {
g.dataPins[i].Configure(machine.GPIOConfig{Mode: mode})
hd44780/hd44780.go
+19 -24
View File
@@ -2,7 +2,6 @@ package hd44780
import (
"errors"
"image/color"
"io"
"time"
)
@@ -12,24 +11,6 @@ type Buser interface {
SetCommandMode(set bool)
}
// NewGPIO4Bit returns 4bit data length HD44780 driver. Datapins are LCD DB pins starting from DB4 to DB7
func NewGPIO4Bit(dataPins []uint8, e, rs, rw uint8) (Device, error) {
const fourBitMode = 4
if len(dataPins) != fourBitMode {
return Device{}, errors.New("4 pins are required in data slice (D7-D4) when HD44780 is used in 4 bit mode")
}
return newGPIO(dataPins, e, rs, rw, DATA_LENGTH_4BIT), nil
}
// NewGPIO8Bit returns 8bit data length HD44780 driver. Datapins are LCD DB pins starting from DB0 to DB7
func NewGPIO8Bit(dataPins []uint8, e, rs, rw uint8) (Device, error) {
const eightBitMode = 8
if len(dataPins) != eightBitMode {
return Device{}, errors.New("8 pins are required in data slice (D7-D0) when HD44780 is used in 8 bit mode")
}
return newGPIO(dataPins, e, rs, rw, DATA_LENGTH_8BIT), nil
}
type Device struct {
bus Buser
width uint8
@@ -56,6 +37,24 @@ type Config struct {
Font uint8
}
// NewGPIO4Bit returns 4bit data length HD44780 driver. Datapins are LCD DB pins starting from DB4 to DB7
func NewGPIO4Bit(dataPins []uint8, e, rs, rw uint8) (Device, error) {
const fourBitMode = 4
if len(dataPins) != fourBitMode {
return Device{}, errors.New("4 pins are required in data slice (D4-D7) when HD44780 is used in 4 bit mode")
}
return newGPIO(dataPins, e, rs, rw, DATA_LENGTH_4BIT), nil
}
// NewGPIO8Bit returns 8bit data length HD44780 driver. Datapins are LCD DB pins starting from DB0 to DB7
func NewGPIO8Bit(dataPins []uint8, e, rs, rw uint8) (Device, error) {
const eightBitMode = 8
if len(dataPins) != eightBitMode {
return Device{}, errors.New("8 pins are required in data slice (D0-D7) when HD44780 is used in 8 bit mode")
}
return newGPIO(dataPins, e, rs, rw, DATA_LENGTH_8BIT), nil
}
// Configure initializes device
func (d *Device) Configure(cfg Config) error {
d.busyStatus = make([]byte, 1)
@@ -205,15 +204,11 @@ func (d *Device) CreateCharacter(cgramAddr uint8, data []byte) {
// Busy returns true when hd447890 is busy
func (d *Device) Busy() bool {
d.bus.SetCommandMode(true)
d.bus.Read(d.busyStatus)
return (d.busyStatus[0] & BUSY) > 0
}
// SetPixel is not supported on devices which uses HD44780 driver
func (d *Device) SetPixel(x, y int16, c color.RGBA) {
panic("HD44780 does not support setting individual pixels")
}
// Size returns the current size of the display.
func (d *Device) Size() (w, h int16) {
return int16(d.width), int16(d.height)