docs/reference: update to v0.24.0

Author: aykevl

content/docs/reference/microcontrollers/machine/arduino-mega1280.md

@@ -289,7 +289,16 @@ Always use UART0 as the serial output.
 var (
 	// UART0 is the hardware serial port on the AVR.
 	UART0	= &_UART0
-	_UART0	= UART{Buffer: NewRingBuffer()}
+	_UART0	= UART{
+		Buffer:	NewRingBuffer(),
+
+		dataReg:	avr.UDR0,
+		baudRegH:	avr.UBRR0H,
+		baudRegL:	avr.UBRR0L,
+		statusRegA:	avr.UCSR0A,
+		statusRegB:	avr.UCSR0B,
+		statusRegC:	avr.UCSR0C,
+	}
 )
 ```
 
@@ -978,7 +987,15 @@ SPIConfig is used to store config info for SPI.
 
 ```go
 type UART struct {
-	Buffer *RingBuffer
+	Buffer	*RingBuffer
+
+	dataReg		*volatile.Register8
+	baudRegH	*volatile.Register8
+	baudRegL	*volatile.Register8
+
+	statusRegA	*volatile.Register8
+	statusRegB	*volatile.Register8
+	statusRegC	*volatile.Register8
 }
 ```
 

content/docs/reference/microcontrollers/machine/arduino-mega2560.md

@@ -61,12 +61,12 @@ const (
 	D11	Pin	= PB5
 	D12	Pin	= PB6
 	D13	Pin	= PB7
-	D14	Pin	= PJ1
-	D15	Pin	= PJ0
-	D16	Pin	= PH1
-	D17	Pin	= PH0
-	D18	Pin	= PD3
-	D19	Pin	= PD2
+	D14	Pin	= PJ1	// TX3
+	D15	Pin	= PJ0	// RX3
+	D16	Pin	= PH1	// TX2
+	D17	Pin	= PH0	// RX2
+	D18	Pin	= PD3	// TX1
+	D19	Pin	= PD2	// RX1
 	D20	Pin	= PD1
 	D21	Pin	= PD0
 	D22	Pin	= PA0
@@ -106,6 +106,24 @@ const (
 
 
 
+```go
+const (
+	UART_TX_PIN	Pin	= UART0_TX_PIN
+	UART_RX_PIN	Pin	= UART0_RX_PIN
+	UART0_TX_PIN	Pin	= D1
+	UART0_RX_PIN	Pin	= D0
+	UART1_TX_PIN	Pin	= D18
+	UART1_RX_PIN	Pin	= D19
+	UART2_TX_PIN	Pin	= D16
+	UART2_RX_PIN	Pin	= D17
+	UART3_TX_PIN	Pin	= D14
+	UART3_RX_PIN	Pin	= D15
+)
+```
+
+UART pins
+
+
 ```go
 const (
 	TWI_FREQ_100KHZ	= 100000
@@ -258,6 +276,46 @@ const (
 
 ## Variables
 
+```go
+var (
+	UART1	= &_UART1
+	_UART1	= UART{
+		Buffer:	NewRingBuffer(),
+
+		dataReg:	avr.UDR1,
+		baudRegH:	avr.UBRR1H,
+		baudRegL:	avr.UBRR1L,
+		statusRegA:	avr.UCSR1A,
+		statusRegB:	avr.UCSR1B,
+		statusRegC:	avr.UCSR1C,
+	}
+	UART2	= &_UART2
+	_UART2	= UART{
+		Buffer:	NewRingBuffer(),
+
+		dataReg:	avr.UDR2,
+		baudRegH:	avr.UBRR2H,
+		baudRegL:	avr.UBRR2L,
+		statusRegA:	avr.UCSR2A,
+		statusRegB:	avr.UCSR2B,
+		statusRegC:	avr.UCSR2C,
+	}
+	UART3	= &_UART3
+	_UART3	= UART{
+		Buffer:	NewRingBuffer(),
+
+		dataReg:	avr.UDR3,
+		baudRegH:	avr.UBRR3H,
+		baudRegL:	avr.UBRR3L,
+		statusRegA:	avr.UCSR3A,
+		statusRegB:	avr.UCSR3B,
+		statusRegC:	avr.UCSR3C,
+	}
+)
+```
+
+
+
 ```go
 var (
 	ErrTimeoutRNG		= errors.New("machine: RNG Timeout")
@@ -289,7 +347,16 @@ Always use UART0 as the serial output.
 var (
 	// UART0 is the hardware serial port on the AVR.
 	UART0	= &_UART0
-	_UART0	= UART{Buffer: NewRingBuffer()}
+	_UART0	= UART{
+		Buffer:	NewRingBuffer(),
+
+		dataReg:	avr.UDR0,
+		baudRegH:	avr.UBRR0H,
+		baudRegL:	avr.UBRR0L,
+		statusRegA:	avr.UCSR0A,
+		statusRegB:	avr.UCSR0B,
+		statusRegC:	avr.UCSR0C,
+	}
 )
 ```
 
@@ -835,7 +902,15 @@ SPIConfig is used to store config info for SPI.
 
 ```go
 type UART struct {
-	Buffer *RingBuffer
+	Buffer	*RingBuffer
+
+	dataReg		*volatile.Register8
+	baudRegH	*volatile.Register8
+	baudRegL	*volatile.Register8
+
+	statusRegA	*volatile.Register8
+	statusRegB	*volatile.Register8
+	statusRegC	*volatile.Register8
 }
 ```