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Add: beta working mt12232a display

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This commit is contained in:
Andrey Egorov
2024-09-04 21:05:02 +03:00
parent c6af2620e0
commit 7e41196dce
5 changed files with 345 additions and 105 deletions
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41
pkg/parallel8bit/parallel8bit.go
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@ -18,8 +18,11 @@ const (
type Device interface {
Reset()
WriteByte(b byte, cd rpio.State)
WriteBytes(b []byte, cd rpio.State)
ReadByte(cd rpio.State) byte
Pins() DevicePins
WaitReady() error
}
@ -44,6 +47,7 @@ type DevicePins struct {
type device struct {
logger *log.Logger
isBusOutput bool
DevicePins
}
@ -54,6 +58,10 @@ func New(logger *log.Logger, pins DevicePins) Device {
}
}
func (d *device) Pins() DevicePins {
return d.DevicePins
}
func (d *device) Reset() {
d.PinA0.Output()
d.PinRW.Output()
@ -88,6 +96,31 @@ func (d *device) WriteByte(b byte, cd rpio.State) {
time.Sleep(time.Millisecond - dataStrobeTimeout - adressWriteTimeout)
}
func (d *device) WriteBytes(b []byte, cd rpio.State) {
// d.logger.Println("Write byte", b, cd, l, r)
d.busOutput()
d.PinRW.Low() // We write
d.PinA0.Write(cd)
// Write bus
d.PinDB0.Write(rpio.State(b[0]))
d.PinDB1.Write(rpio.State(b[1]))
d.PinDB2.Write(rpio.State(b[2]))
d.PinDB3.Write(rpio.State(b[3]))
d.PinDB4.Write(rpio.State(b[4]))
d.PinDB5.Write(rpio.State(b[5]))
d.PinDB6.Write(rpio.State(b[6]))
d.PinDB7.Write(rpio.State(b[7]))
// Strobe start
d.PinE.High()
time.Sleep(dataStrobeTimeout)
// Strobe end
d.PinE.Low()
time.Sleep(time.Millisecond - dataStrobeTimeout - adressWriteTimeout)
}
func (d *device) ReadByte(cd rpio.State) byte {
// Setup
var b byte
@ -148,6 +181,9 @@ func (d *device) WaitReady() error {
// Set bus pins to output
func (d *device) busOutput() {
// if d.isBusOutput {
// return
// }
d.PinDB0.Output()
d.PinDB1.Output()
d.PinDB2.Output()
@ -156,9 +192,13 @@ func (d *device) busOutput() {
d.PinDB5.Output()
d.PinDB6.Output()
d.PinDB7.Output()
d.isBusOutput = true
}
func (d *device) busInput() {
//if !d.isBusOutput {
// return
//}
d.PinDB0.Input()
d.PinDB1.Input()
d.PinDB2.Input()
@ -167,4 +207,5 @@ func (d *device) busInput() {
d.PinDB5.Input()
d.PinDB6.Input()
d.PinDB7.Input()
d.isBusOutput = false
}