mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-03 18:47:47 +00:00
Ayke van Laethem
9673ad3774
This avoids duplication of code. None of the smoke tests have changed their output.
51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
// +build avr,attiny
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package machine
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import (
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"device/avr"
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"runtime/volatile"
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)
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// Configure sets the pin to input or output.
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func (p Pin) Configure(config PinConfig) {
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if config.Mode == PinOutput { // set output bit
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avr.DDRB.SetBits(1 << uint8(p))
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} else { // configure input: clear output bit
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avr.DDRB.ClearBits(1 << uint8(p))
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}
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}
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func (p Pin) getPortMask() (*volatile.Register8, uint8) {
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return avr.PORTB, 1 << uint8(p)
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}
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// Get returns the current value of a GPIO pin.
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func (p Pin) Get() bool {
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val := avr.PINB.Get() & (1 << uint8(p))
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return (val > 0)
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}
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// UART on the AVR is a dummy implementation. UART has not been implemented for ATtiny
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// devices.
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type UART struct {
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Buffer *RingBuffer
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}
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// Configure is a dummy implementation. UART has not been implemented for ATtiny
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// devices.
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func (uart UART) Configure(config UARTConfig) {
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}
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// WriteByte is a dummy implementation. UART has not been implemented for ATtiny
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// devices.
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func (uart UART) WriteByte(c byte) error {
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return nil
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}
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// Tx is a dummy implementation. I2C has not been implemented for ATtiny
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// devices.
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func (i2c I2C) Tx(addr uint16, w, r []byte) error {
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return nil
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}
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