Run Nick G's spellchecker github.com/client9/misspell, carefuly fix what it found (#4235)

src/machine/board_nano-33-ble.go

@@ -26,7 +26,7 @@
 // SoftDevice (s140v7) must be flashed first to enable use of bluetooth on this board.
 // See https://github.com/tinygo-org/bluetooth
 //
-// SoftDevice overwrites original bootloader and flashing method described above is not avalable anymore.
+// SoftDevice overwrites original bootloader and flashing method described above is not available anymore.
 // Instead, please use debug probe and flash your code with "nano-33-ble-s140v7" target.
 package machine
 

src/machine/machine_atsamd21.go

@@ -1304,7 +1304,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
 	return byte(spi.Bus.DATA.Get()), nil
 }
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous write/read
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous write/read
 // interface, there must always be the same number of bytes written as bytes read.
 // The Tx method knows about this, and offers a few different ways of calling it.
 //
@@ -1459,7 +1459,7 @@ func (tcc *TCC) Configure(config PWMConfig) error {
 	for tcc.timer().SYNCBUSY.Get() != 0 {
 	}
 
-	// Return any error that might have occured in the tcc.setPeriod call.
+	// Return any error that might have occurred in the tcc.setPeriod call.
 	return err
 }
 
@@ -1606,7 +1606,7 @@ func (tcc *TCC) Counter() uint32 {
 	return tcc.timer().COUNT.Get()
 }
 
-// Some constans to make pinTimerMapping below easier to read.
+// Some constants to make pinTimerMapping below easier to read.
 const (
 	pinTCC0     = 1
 	pinTCC1     = 2
@@ -1759,7 +1759,7 @@ func (tcc *TCC) Set(channel uint8, value uint32) {
 	}
 }
 
-// EnterBootloader should perform a system reset in preperation
+// EnterBootloader should perform a system reset in preparation
 // to switch to the bootloader to flash new firmware.
 func EnterBootloader() {
 	arm.DisableInterrupts()

src/machine/machine_atsamd51.go

@@ -1587,7 +1587,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
 	return byte(spi.Bus.DATA.Get()), nil
 }
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous write/read
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous write/read
 // interface, there must always be the same number of bytes written as bytes read.
 // The Tx method knows about this, and offers a few different ways of calling it.
 //
@@ -1720,7 +1720,7 @@ func (tcc *TCC) Configure(config PWMConfig) error {
 	for tcc.timer().SYNCBUSY.Get() != 0 {
 	}
 
-	// Return any error that might have occured in the tcc.setPeriod call.
+	// Return any error that might have occurred in the tcc.setPeriod call.
 	return err
 }
 

src/machine/machine_atsame5x_can.go

@@ -155,7 +155,7 @@ func (can *CAN) Configure(config CANConfig) error {
 }
 
 // Callbacks to be called for CAN.SetInterrupt(). Wre're using the magic
-// constant 2 and 32 here beacuse th SAM E51/E54 has 2 CAN and 32 interrupt
+// constant 2 and 32 here because the SAM E51/E54 has 2 CAN and 32 interrupt
 // sources.
 var (
 	canInstances [2]*CAN

src/machine/machine_esp32.go

@@ -460,7 +460,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
 	return byte(spi.Bus.W0.Get()), nil
 }
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous write/read
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous write/read
 // interface, there must always be the same number of bytes written as bytes read.
 // This is accomplished by sending zero bits if r is bigger than w or discarding
 // the incoming data if w is bigger than r.

src/machine/machine_esp32c3.go

@@ -312,7 +312,7 @@ func (uart *UART) configure(config UARTConfig, regs registerSet) error {
 
 	initUARTClock(uart.Bus, regs)
 
-	// - disbale TX/RX clock to make sure the UART transmitter or receiver is not at work during configuration
+	// - disable TX/RX clock to make sure the UART transmitter or receiver is not at work during configuration
 	uart.Bus.SetCLK_CONF_TX_SCLK_EN(0)
 	uart.Bus.SetCLK_CONF_RX_SCLK_EN(0)
 

src/machine/machine_esp32c3_spi.go

@@ -234,7 +234,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
 	return byte(spi.Bus.GetW0()), nil
 }
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous write/read
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous write/read
 // interface, there must always be the same number of bytes written as bytes read.
 // This is accomplished by sending zero bits if r is bigger than w or discarding
 // the incoming data if w is bigger than r.

src/machine/machine_generic.go

@@ -66,7 +66,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
 	return spiTransfer(spi.Bus, w), nil
 }
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous write/read
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous write/read
 // interface, there must always be the same number of bytes written as bytes read.
 // The Tx method knows about this, and offers a few different ways of calling it.
 //

src/machine/machine_nrf.go

@@ -108,7 +108,7 @@ func (p Pin) Get() bool {
 func (p Pin) SetInterrupt(change PinChange, callback func(Pin)) error {
 	// Some variables to easily check whether a channel was already configured
 	// as an event channel for the given pin.
-	// This is not just an optimization, this is requred: the datasheet says
+	// This is not just an optimization, this is required: the datasheet says
 	// that configuring more than one channel for a given pin results in
 	// unpredictable behavior.
 	expectedConfigMask := uint32(nrf.GPIOTE_CONFIG_MODE_Msk | nrf.GPIOTE_CONFIG_PSEL_Msk)

src/machine/machine_nrf51.go

@@ -133,7 +133,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
 	return byte(r), nil
 }
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous write/read
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous write/read
 // interface, there must always be the same number of bytes written as bytes read.
 // The Tx method knows about this, and offers a few different ways of calling it.
 //

src/machine/machine_nrf52xxx.go

@@ -277,7 +277,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
 	return buf[0], err
 }
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous
 // write/read interface, there must always be the same number of bytes written
 // as bytes read. Therefore, if the number of bytes don't match it will be
 // padded until they fit: if len(w) > len(r) the extra bytes received will be

src/machine/machine_rp2040_i2c.go

@@ -348,7 +348,7 @@ func (i2c *I2C) tx(addr uint8, tx, rx []byte, timeout_us uint64) (err error) {
 		}
 		if abort || last {
 			// If the transaction was aborted or if it completed
-			// successfully wait until the STOP condition has occured.
+			// successfully wait until the STOP condition has occurred.
 
 			// TODO Could there be an abort while waiting for the STOP
 			// condition here? If so, additional code would be needed here

src/machine/machine_rp2040_spi.go

@@ -48,7 +48,7 @@ type SPI struct {
 	Bus *rp.SPI0_Type
 }
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous write/read
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous write/read
 // interface, there must always be the same number of bytes written as bytes read.
 // The Tx method knows about this, and offers a few different ways of calling it.
 //

src/machine/machine_stm32l5x2.go

@@ -23,7 +23,7 @@ const APB2_TIM_FREQ = 110e6 // 110MHz
 // Configure the UART.
 func (uart *UART) configurePins(config UARTConfig) {
 	if config.RX.getPort() == stm32.GPIOG || config.TX.getPort() == stm32.GPIOG {
-		// Enable VDDIO2 power supply, which is an independant power supply for the PGx pins
+		// Enable VDDIO2 power supply, which is an independent power supply for the PGx pins
 		stm32.PWR.CR2.SetBits(stm32.PWR_CR2_IOSV)
 	}
 

src/machine/spi_tx.go

@@ -5,7 +5,7 @@
 
 package machine
 
-// Tx handles read/write operation for SPI interface. Since SPI is a syncronous write/read
+// Tx handles read/write operation for SPI interface. Since SPI is a synchronous write/read
 // interface, there must always be the same number of bytes written as bytes read.
 // The Tx method knows about this, and offers a few different ways of calling it.
 //