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-rw-r--r--boards.txt20
-rwxr-xr-xbootloaders/atmega/ATmegaBOOT_168.c138
-rw-r--r--bootloaders/atmega/ATmegaBOOT_168_atmega1280.hex245
-rwxr-xr-xbootloaders/atmega/Makefile15
-rwxr-xr-xcores/arduino/HardwareSerial.cpp149
-rwxr-xr-xcores/arduino/HardwareSerial.h24
-rwxr-xr-xcores/arduino/WInterrupts.c140
-rwxr-xr-xcores/arduino/pins_arduino.c308
-rw-r--r--cores/arduino/pins_arduino.h27
-rwxr-xr-xcores/arduino/wiring.c11
-rwxr-xr-xcores/arduino/wiring_analog.c85
-rwxr-xr-xcores/arduino/wiring_digital.c12
-rwxr-xr-xcores/arduino/wiring_private.h10
13 files changed, 1093 insertions, 91 deletions
diff --git a/boards.txt b/boards.txt
index d4bff7b..df14e89 100644
--- a/boards.txt
+++ b/boards.txt
@@ -177,3 +177,23 @@ atmega328.bootloader.lock_bits=0x0F
atmega328.build.mcu=atmega328p
atmega328.build.f_cpu=16000000L
atmega328.build.core=arduino
+
+##############################################################
+
+mega.name=Arduino Mega
+
+mega.upload.protocol=stk500
+mega.upload.maximum_size=126976
+mega.upload.speed=57600
+
+mega.bootloader.low_fuses=0xFF
+mega.bootloader.high_fuses=0xDA
+mega.bootloader.extended_fuses=0xF5
+mega.bootloader.path=atmega
+mega.bootloader.file=ATmegaBOOT_168_atmega1280.hex
+mega.bootloader.unlock_bits=0x3F
+mega.bootloader.lock_bits=0x0F
+
+mega.build.mcu=atmega1280
+mega.build.f_cpu=16000000L
+mega.build.core=arduino
diff --git a/bootloaders/atmega/ATmegaBOOT_168.c b/bootloaders/atmega/ATmegaBOOT_168.c
index 9413f86..8ea1509 100755
--- a/bootloaders/atmega/ATmegaBOOT_168.c
+++ b/bootloaders/atmega/ATmegaBOOT_168.c
@@ -6,6 +6,12 @@
/* */
/* ATmegaBOOT.c */
/* */
+/* */
+/* 20090308: integrated Mega changes into main bootloader */
+/* source by D. Mellis */
+/* 20080930: hacked for Arduino Mega (with the 1280 */
+/* processor, backwards compatible) */
+/* by D. Cuartielles */
/* 20070626: hacked for Arduino Diecimila (which auto- */
/* resets when a USB connection is made to it) */
/* by D. Mellis */
@@ -101,6 +107,7 @@
/* Adjust to suit whatever pin your hardware uses to enter the bootloader */
/* ATmega128 has two UARTS so two pins are used to enter bootloader and select UART */
+/* ATmega1280 has four UARTS, but for Arduino Mega, we will only use RXD0 to get code */
/* BL0... means UART0, BL1... means UART1 */
#ifdef __AVR_ATmega128__
#define BL_DDR DDRF
@@ -108,6 +115,8 @@
#define BL_PIN PINF
#define BL0 PINF7
#define BL1 PINF6
+#elif defined __AVR_ATmega1280__
+/* we just don't do anything for the MEGA and enter bootloader on reset anyway*/
#else
/* other ATmegas have only one UART, so only one pin is defined to enter bootloader */
#define BL_DDR DDRD
@@ -119,26 +128,25 @@
/* onboard LED is used to indicate, that the bootloader was entered (3x flashing) */
/* if monitor functions are included, LED goes on after monitor was entered */
-#ifdef __AVR_ATmega128__
-/* Onboard LED is connected to pin PB7 (e.g. Crumb128, PROBOmega128, Savvy128) */
+#if defined __AVR_ATmega128__ || defined __AVR_ATmega1280__
+/* Onboard LED is connected to pin PB7 (e.g. Crumb128, PROBOmega128, Savvy128, Arduino Mega) */
#define LED_DDR DDRB
#define LED_PORT PORTB
#define LED_PIN PINB
#define LED PINB7
#else
-/* Onboard LED is connected to pin PB2 (e.g. Crumb8, Crumb168) */
+/* Onboard LED is connected to pin PB5 in Arduino NG, Diecimila, and Duomilanuove */
+/* other boards like e.g. Crumb8, Crumb168 are using PB2 */
#define LED_DDR DDRB
#define LED_PORT PORTB
#define LED_PIN PINB
-/* 20060803: hacked by DojoCorp, LED pin is B5 in Arduino */
-/* #define LED PINB2 */
#define LED PINB5
#endif
/* monitor functions will only be compiled when using ATmega128, due to bootblock size constraints */
-#ifdef __AVR_ATmega128__
-#define MONITOR
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
+#define MONITOR 1
#endif
@@ -146,7 +154,17 @@
/* manufacturer byte is always the same */
#define SIG1 0x1E // Yep, Atmel is the only manufacturer of AVR micros. Single source :(
-#if defined __AVR_ATmega128__
+#if defined __AVR_ATmega1280__
+#define SIG2 0x97
+#define SIG3 0x03
+#define PAGE_SIZE 0x80U //128 words
+
+#elif defined __AVR_ATmega1281__
+#define SIG2 0x97
+#define SIG3 0x04
+#define PAGE_SIZE 0x80U //128 words
+
+#elif defined __AVR_ATmega128__
#define SIG2 0x97
#define SIG3 0x02
#define PAGE_SIZE 0x80U //128 words
@@ -282,6 +300,7 @@ int main(void)
#else
/* We run the bootloader regardless of the state of this pin. Thus, don't
put it in a different state than the other pins. --DAM, 070709
+ This also applies to Arduino Mega -- DC, 080930
BL_DDR &= ~_BV(BL);
BL_PORT |= _BV(BL);
*/
@@ -298,24 +317,30 @@ int main(void)
}
#endif
+#if defined __AVR_ATmega1280__
+ /* the mega1280 chip has four serial ports ... we could eventually use any of them, or not? */
+ /* however, we don't wanna confuse people, to avoid making a mess, we will stick to RXD0, TXD0 */
+ bootuart = 1;
+#endif
+
/* check if flash is programmed already, if not start bootloader anyway */
if(pgm_read_byte_near(0x0000) != 0xFF) {
#ifdef __AVR_ATmega128__
- /* no UART was selected, start application */
- if(!bootuart) {
- app_start();
- }
+ /* no UART was selected, start application */
+ if(!bootuart) {
+ app_start();
+ }
#else
- /* check if bootloader pin is set low */
- /* we don't start this part neither for the m8, nor m168 */
- //if(bit_is_set(BL_PIN, BL)) {
- // app_start();
- //}
+ /* check if bootloader pin is set low */
+ /* we don't start this part neither for the m8, nor m168 */
+ //if(bit_is_set(BL_PIN, BL)) {
+ // app_start();
+ // }
#endif
}
-#ifdef __AVR_ATmega128__
+#ifdef __AVR_ATmega128__
/* no bootuart was selected, default to uart 0 */
if(!bootuart) {
bootuart = 1;
@@ -324,7 +349,7 @@ int main(void)
/* initialize UART(s) depending on CPU defined */
-#ifdef __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
if(bootuart == 1) {
UBRR0L = (uint8_t)(F_CPU/(BAUD_RATE*16L)-1);
UBRR0H = (F_CPU/(BAUD_RATE*16L)-1) >> 8;
@@ -370,12 +395,22 @@ int main(void)
UCSRB = _BV(TXEN)|_BV(RXEN);
#endif
+#if defined __AVR_ATmega1280__
+ /* Enable internal pull-up resistor on pin D0 (RX), in order
+ to supress line noise that prevents the bootloader from
+ timing out (DAM: 20070509) */
+ /* feature added to the Arduino Mega --DC: 080930 */
+ DDRE &= ~_BV(PINE0);
+ PORTE |= _BV(PINE0);
+#endif
+
+
/* set LED pin as output */
LED_DDR |= _BV(LED);
/* flash onboard LED to signal entering of bootloader */
-#ifdef __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
// 4x for UART0, 5x for UART1
flash_led(NUM_LED_FLASHES + bootuart);
#else
@@ -383,10 +418,9 @@ int main(void)
#endif
/* 20050803: by DojoCorp, this is one of the parts provoking the
- system to stop listening, cancelled from the original */
+ system to stop listening, cancelled from the original */
//putch('\0');
-
/* forever loop */
for (;;) {
@@ -531,15 +565,18 @@ int main(void)
else { //Write to FLASH one page at a time
if (address.byte[1]>127) address_high = 0x01; //Only possible with m128, m256 will need 3rd address byte. FIXME
else address_high = 0x00;
-#ifdef __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega1281__)
RAMPZ = address_high;
#endif
address.word = address.word << 1; //address * 2 -> byte location
/* if ((length.byte[0] & 0x01) == 0x01) length.word++; //Even up an odd number of bytes */
if ((length.byte[0] & 0x01)) length.word++; //Even up an odd number of bytes
cli(); //Disable interrupts, just to be sure
- // HACKME: EEPE used to be EEWE
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega1281__)
while(bit_is_set(EECR,EEPE)); //Wait for previous EEPROM writes to complete
+#else
+ while(bit_is_set(EECR,EEWE)); //Wait for previous EEPROM writes to complete
+#endif
asm volatile(
"clr r17 \n\t" //page_word_count
"lds r30,address \n\t" //Address of FLASH location (in bytes)
@@ -634,7 +671,7 @@ int main(void)
"rjmp write_page \n\t"
"block_done: \n\t"
"clr __zero_reg__ \n\t" //restore zero register
-#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
+#if defined __AVR_ATmega168__ || __AVR_ATmega328P__ || __AVR_ATmega128__ || __AVR_ATmega1280__ || __AVR_ATmega1281__
: "=m" (SPMCSR) : "M" (PAGE_SIZE) : "r0","r16","r17","r24","r25","r28","r29","r30","r31"
#else
: "=m" (SPMCR) : "M" (PAGE_SIZE) : "r0","r16","r17","r24","r25","r28","r29","r30","r31"
@@ -656,7 +693,7 @@ int main(void)
else if(ch=='t') {
length.byte[1] = getch();
length.byte[0] = getch();
-#if defined __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
if (address.word>0x7FFF) flags.rampz = 1; // No go with m256, FIXME
else flags.rampz = 0;
#endif
@@ -680,7 +717,7 @@ int main(void)
else {
if (!flags.rampz) putch(pgm_read_byte_near(address.word));
-#if defined __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
else putch(pgm_read_byte_far(address.word + 0x10000));
// Hmmmm, yuck FIXME when m256 arrvies
#endif
@@ -702,7 +739,7 @@ int main(void)
putch(0x10);
} else {
if (++error_count == MAX_ERROR_COUNT)
- app_start();
+ app_start();
}
}
@@ -713,7 +750,7 @@ int main(void)
}
-#ifdef MONITOR
+#if defined MONITOR
/* here come the extended monitor commands by Erik Lins */
@@ -723,18 +760,20 @@ int main(void)
if(ch=='!') {
ch = getch();
if(ch=='!') {
-
-#ifdef __AVR_ATmega128__
+ PGM_P welcome = "";
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
uint16_t extaddr;
#endif
uint8_t addrl, addrh;
#ifdef CRUMB128
- PGM_P welcome = {"ATmegaBOOT / Crumb128 - (C) J.P.Kyle, E.Lins - 050815\n\r"};
+ welcome = "ATmegaBOOT / Crumb128 - (C) J.P.Kyle, E.Lins - 050815\n\r";
#elif defined PROBOMEGA128
- PGM_P welcome = {"ATmegaBOOT / PROBOmega128 - (C) J.P.Kyle, E.Lins - 050815\n\r"};
+ welcome = "ATmegaBOOT / PROBOmega128 - (C) J.P.Kyle, E.Lins - 050815\n\r";
#elif defined SAVVY128
- PGM_P welcome = {"ATmegaBOOT / Savvy128 - (C) J.P.Kyle, E.Lins - 050815\n\r"};
+ welcome = "ATmegaBOOT / Savvy128 - (C) J.P.Kyle, E.Lins - 050815\n\r";
+#elif defined __AVR_ATmega1280__
+ welcome = "ATmegaBOOT / Arduino Mega - (C) Arduino LLC - 090930\n\r";
#endif
/* turn on LED */
@@ -793,7 +832,7 @@ int main(void)
putch(getch());
}
}
-#ifdef __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
/* external bus loop */
else if(ch == 'b') {
putch('b');
@@ -872,7 +911,7 @@ void puthex(char ch) {
void putch(char ch)
{
-#ifdef __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
if(bootuart == 1) {
while (!(UCSR0A & _BV(UDRE0)));
UDR0 = ch;
@@ -894,13 +933,28 @@ void putch(char ch)
char getch(void)
{
-#ifdef __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
+ uint32_t count = 0;
if(bootuart == 1) {
- while(!(UCSR0A & _BV(RXC0)));
- return UDR0;
- }
+ while(!(UCSR0A & _BV(RXC0))) {
+ /* 20060803 DojoCorp:: Addon coming from the previous Bootloader*/
+ /* HACKME:: here is a good place to count times*/
+ count++;
+ if (count > MAX_TIME_COUNT)
+ app_start();
+ }
+
+ return UDR0;
+ }
else if(bootuart == 2) {
- while(!(UCSR1A & _BV(RXC1)));
+ while(!(UCSR1A & _BV(RXC1))) {
+ /* 20060803 DojoCorp:: Addon coming from the previous Bootloader*/
+ /* HACKME:: here is a good place to count times*/
+ count++;
+ if (count > MAX_TIME_COUNT)
+ app_start();
+ }
+
return UDR1;
}
return 0;
@@ -932,7 +986,7 @@ char getch(void)
void getNch(uint8_t count)
{
while(count--) {
-#ifdef __AVR_ATmega128__
+#if defined(__AVR_ATmega128__) || defined(__AVR_ATmega1280__)
if(bootuart == 1) {
while(!(UCSR0A & _BV(RXC0)));
UDR0;
diff --git a/bootloaders/atmega/ATmegaBOOT_168_atmega1280.hex b/bootloaders/atmega/ATmegaBOOT_168_atmega1280.hex
new file mode 100644
index 0000000..f16e877
--- /dev/null
+++ b/bootloaders/atmega/ATmegaBOOT_168_atmega1280.hex
@@ -0,0 +1,245 @@
+:020000021000EC
+:10F000000C9472F80C9492F80C9492F80C9492F878
+:10F010000C9492F80C9492F80C9492F80C9492F848
+:10F020000C9492F80C9492F80C9492F80C9492F838
+:10F030000C9492F80C9492F80C9492F80C9492F828
+:10F040000C9492F80C9492F80C9492F80C9492F818
+:10F050000C9492F80C9492F80C9492F80C9492F808
+:10F060000C9492F80C9492F80C9492F80C9492F8F8
+:10F070000C9492F80C9492F80C9492F80C9492F8E8
+:10F080000C9492F80C9492F80C9492F80C9492F8D8
+:10F090000C9492F80C9492F80C9492F80C9492F8C8
+:10F0A0000C9492F80C9492F80C9492F80C9492F8B8
+:10F0B0000C9492F80C9492F80C9492F80C9492F8A8
+:10F0C0000C9492F80C9492F80C9492F80C9492F898
+:10F0D0000C9492F80C9492F80C9492F80C9492F888
+:10F0E0000C9492F811241FBECFEFD1E2DEBFCDBF4A
+:10F0F00012E0A0E0B2E0EEEDFEEF01E00BBF02C0D7
+:10F1000007900D92A833B107D9F71BBE13E0A8E30F
+:10F11000B2E001C01D92A334B107E1F70E9412FAD8
+:10F120000C946DFF0C9400F8982F959595959595F6
+:10F130009595905D8F708A301CF1282F295A809107
+:10F140003802813019F0823071F008958091C0004A
+:10F1500085FFFCCF9093C6008091C00085FFFCCF57
+:10F160002093C60008958091C80085FFFCCF90933E
+:10F17000CE008091C80085FFFCCF2093CE0008957B
+:10F18000282F205DDCCF982F80913802813019F034
+:10F19000823041F008958091C00085FFFCCF9093AC
+:10F1A000C60008958091C80085FFFCCF9093CE00E3
+:10F1B0000895EF92FF920F931F9380913802813050
+:10F1C00069F1823031F080E01F910F91FF90EF9054
+:10F1D0000895EE24FF2487018091C80087FD17C0A1
+:10F1E0000894E11CF11C011D111D81E4E81682E464
+:10F1F000F8068FE0080780E0180770F3E0913A0204
+:10F20000F0913B0209958091C80087FFE9CF80917A
+:10F21000CE001F910F91FF90EF900895EE24FF24F0
+:10F2200087018091C00087FD17C00894E11CF11C84
+:10F23000011D111D81E4E81682E4F8068FE008073D
+:10F2400080E0180770F3E0913A02F0913B020995D3
+:10F250008091C00087FFE9CF8091C6001F910F9178
+:10F26000FF90EF9008950E94D9F8982F809138026E
+:10F27000813049F0823091F091366CF490330CF08B
+:10F280009053892F08958091C00085FFFCCF909303
+:10F29000C60091369CF39755892F08958091C80038
+:10F2A00085FFFCCF9093CE00E7CF1F930E9433F9E8
+:10F2B000182F0E9433F91295107F810F1F91089526
+:10F2C000982F20913802992339F0213031F02230E3
+:10F2D00061F091509923C9F708958091C00087FF8C
+:10F2E000FCCF8091C6009150F5CF8091C80087FF78
+:10F2F000FCCF8091CE009150EDCF1F93182F0E942C
+:10F30000D9F8803249F0809139028F5F80933902B9
+:10F31000853091F11F910895809138028130B9F0C4
+:10F320008230C1F78091C80085FFFCCF84E18093D3
+:10F33000CE008091C80085FFFCCF1093CE00809155
+:10F34000C80085FFFCCF80E18093CE00E3CF8091A1
+:10F35000C00085FFFCCF84E18093C6008091C0008F
+:10F3600085FFFCCF1093C6008091C00085FFFCCFC5
+:10F3700080E18093C600CECFE0913A02F0913B024B
+:10F3800009951F9108950E94D9F8803241F080912B
+:10F3900039028F5F80933902853029F10895809179
+:10F3A0003802813089F08230C9F78091C80085FF2A
+:10F3B000FCCF84E18093CE008091C80085FFFCCF14
+:10F3C00080E18093CE0008958091C00085FFFCCF3E
+:10F3D00084E18093C6008091C00085FFFCCF80E16E
+:10F3E0008093C6000895E0913A02F0913B0209959E
+:10F3F000089540E951E08823A1F02F9A28EE33E0E8
+:10F40000FA013197F1F721503040D1F72F9828EECB
+:10F4100033E0FA013197F1F721503040D1F78150B4
+:10F4200061F708952F923F924F925F926F927F9271
+:10F430008F929F92AF92BF92CF92DF92EF92FF9204
+:10F440000F931F93CF93DF93000081E080933802E6
+:10F4500080E18093C4001092C5001092C00086E045
+:10F460008093C20088E18093C1006898709A279ABF
+:10F4700081E00E94F9F9E4E1EE2E7EE1D72E67E902
+:10F48000C62E53E0B52E40E1A42E9924939431E486
+:10F49000832E26E5722E92E5692E80E2582E09E42D
+:10F4A000402E13E5312EB0E52B2E0E94D9F8803383
+:10F4B000C9F1813309F452C0803409F4C8C08134E1
+:10F4C00009F4EAC0823489F1853409F4CAC0803570
+:10F4D00049F1823539F1813529F1853509F4ECC0DE
+:10F4E000863509F409C1843609F428C1843709F442
+:10F4F000ABC1853709F473C2863709F4D9C08132AC
+:10F5000009F4B7C2809139028F5F80933902853048
+:10F5100061F6E0913A02F0913B0209950E94D9F818
+:10F52000803339F60E94C3F9C0CF2091380293E1AD
+:10F5300005C0223061F09923A9F391502130C9F719
+:10F540008091C00087FFFCCF8091C600F4CF8091EE
+:10F55000C80087FFFCCF8091CE00EDCF0E94D9F884
+:10F56000803281F6809138028130D1F1823009F009
+:10F570009CCF8091C80085FFFCCFE092CE008091A7
+:10F58000C80085FFFCCF8092CE008091C80085FF27
+:10F59000FCCF7092CE008091C80085FFFCCF6092B6
+:10F5A000CE008091C80085FFFCCF5092CE008091A4
+:10F5B000C80085FFFCCF4092CE008091C80085FF37
+:10F5C000FCCF3092CE008091C80085FFFCCF209206
+:10F5D000CE008091C80085FFFCCFA092CE0065CF01
+:10F5E0008091C00085FFFCCFE092C6008091C000F2
+:10F5F00085FFFCCF8092C6008091C00085FFFCCFC4
+:10F600007092C6008091C00085FFFCCF6092C6005A
+:10F610008091C00085FFFCCF5092C6008091C00051
+:10F6200085FFFCCF4092C6008091C00085FFFCCFD3
+:10F630003092C6008091C00085FFFCCF2092C600AA
+:10F640008091C00085FFFCCFA092C6002ECF0E9403
+:10F65000D9F8863808F466CF0E94D9F80E94C3F919
+:10F6600024CF2091380294E0213041F0223069F01B
+:10F67000992309F457CF91502130C1F78091C000F0
+:10F6800087FFFCCF8091C600F3CF8091C80087FF31
+:10F69000FCCF8091CE00ECCF0E94D9F8803841F1A8
+:10F6A000813809F447C0823809F4CAC08839E1F0CA
+:10F6B00080E00E947DF9F9CE0E94D9F880933C0247
+:10F6C0000E94D9F880933D020E94C3F9EECE0E94B9
+:10F6D000D9F80E94D9F8182F0E94D9F8112309F4FB
+:10F6E0007EC2113009F40AC283E00E947DF9DDCEAA
+:10F6F00082E00E947DF9D9CE0E94D9F8803339F397
+:10F700002091380292E0213039F0223061F09923C3
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+:08FF0E00303933300A0D008088
+:040000031000F000F9
+:00000001FF
diff --git a/bootloaders/atmega/Makefile b/bootloaders/atmega/Makefile
index 861cedd..6c6c215 100755
--- a/bootloaders/atmega/Makefile
+++ b/bootloaders/atmega/Makefile
@@ -166,6 +166,21 @@ atmega328_isp: LFUSE = FF
atmega328_isp: EFUSE = 05
atmega328_isp: isp
+mega: TARGET = atmega1280
+mega: MCU_TARGET = atmega1280
+mega: CFLAGS += '-DMAX_TIME_COUNT=F_CPU>>4' '-DNUM_LED_FLASHES=0' -DBAUD_RATE=57600
+mega: AVR_FREQ = 16000000L
+mega: LDSECTION = --section-start=.text=0x1F000
+mega: $(PROGRAM)_atmega1280.hex
+
+mega_isp: mega
+mega_isp: TARGET = atmega1280
+mega_isp: MCU_TARGET = atmega1280
+mega_isp: HFUSE = DA
+mega_isp: LFUSE = FF
+mega_isp: EFUSE = F5
+mega_isp: isp
+
isp: $(TARGET)
$(ISPFUSES)
$(ISPFLASH)
diff --git a/cores/arduino/HardwareSerial.cpp b/cores/arduino/HardwareSerial.cpp
index aab7fc5..f8a959a 100755
--- a/cores/arduino/HardwareSerial.cpp
+++ b/cores/arduino/HardwareSerial.cpp
@@ -1,5 +1,5 @@
/*
- HarwareSerial.cpp - Hardware serial library for Wiring
+ HardwareSerial.cpp - Hardware serial library for Wiring
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
@@ -23,36 +23,169 @@
#include <string.h>
#include <inttypes.h>
#include "wiring.h"
+#include "wiring_private.h"
#include "HardwareSerial.h"
+// Define constants and variables for buffering incoming serial data. We're
+// using a ring buffer (I think), in which rx_buffer_head is the index of the
+// location to which to write the next incoming character and rx_buffer_tail
+// is the index of the location from which to read.
+#define RX_BUFFER_SIZE 128
+
+struct ring_buffer {
+ unsigned char buffer[RX_BUFFER_SIZE];
+ int head;
+ int tail;
+};
+
+ring_buffer rx_buffer = { { 0 }, 0, 0 };
+
+#if defined(__AVR_ATmega1280__)
+ring_buffer rx_buffer1 = { { 0 }, 0, 0 };
+ring_buffer rx_buffer2 = { { 0 }, 0, 0 };
+ring_buffer rx_buffer3 = { { 0 }, 0, 0 };
+#endif
+
+inline void store_char(unsigned char c, ring_buffer *rx_buffer)
+{
+ int i = (rx_buffer->head + 1) % RX_BUFFER_SIZE;
+
+ // if we should be storing the received character into the location
+ // just before the tail (meaning that the head would advance to the
+ // current location of the tail), we're about to overflow the buffer
+ // and so we don't write the character or advance the head.
+ if (i != rx_buffer->tail) {
+ rx_buffer->buffer[rx_buffer->head] = c;
+ rx_buffer->head = i;
+ }
+}
+
+#if defined(__AVR_ATmega1280__)
+
+SIGNAL(SIG_USART0_RECV)
+{
+ unsigned char c = UDR0;
+ store_char(c, &rx_buffer);
+}
+
+SIGNAL(SIG_USART1_RECV)
+{
+ unsigned char c = UDR1;
+ store_char(c, &rx_buffer1);
+}
+
+SIGNAL(SIG_USART2_RECV)
+{
+ unsigned char c = UDR2;
+ store_char(c, &rx_buffer2);
+}
+
+SIGNAL(SIG_USART3_RECV)
+{
+ unsigned char c = UDR3;
+ store_char(c, &rx_buffer3);
+}
+
+#else
+
+#if defined(__AVR_ATmega8__)
+SIGNAL(SIG_UART_RECV)
+#else
+SIGNAL(USART_RX_vect)
+#endif
+{
+#if defined(__AVR_ATmega8__)
+ unsigned char c = UDR;
+#else
+ unsigned char c = UDR0;
+#endif
+ store_char(c, &rx_buffer);
+}
+
+#endif
+
+// Constructors ////////////////////////////////////////////////////////////////
+
+HardwareSerial::HardwareSerial(ring_buffer *rx_buffer,
+ volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
+ volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
+ volatile uint8_t *udr,
+ uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udre)
+{
+ _rx_buffer = rx_buffer;
+ _ubrrh = ubrrh;
+ _ubrrl = ubrrl;
+ _ucsra = ucsra;
+ _ucsrb = ucsrb;
+ _udr = udr;
+ _rxen = rxen;
+ _txen = txen;
+ _rxcie = rxcie;
+ _udre = udre;
+}
+
// Public Methods //////////////////////////////////////////////////////////////
void HardwareSerial::begin(long speed)
{
- beginSerial(speed);
+ *_ubrrh = ((F_CPU / 16 + speed / 2) / speed - 1) >> 8;
+ *_ubrrl = ((F_CPU / 16 + speed / 2) / speed - 1);
+ sbi(*_ucsrb, _rxen);
+ sbi(*_ucsrb, _txen);
+ sbi(*_ucsrb, _rxcie);
}
uint8_t HardwareSerial::available(void)
{
- return serialAvailable();
+ return (RX_BUFFER_SIZE + _rx_buffer->head - _rx_buffer->tail) % RX_BUFFER_SIZE;
}
int HardwareSerial::read(void)
{
- return serialRead();
+ // if the head isn't ahead of the tail, we don't have any characters
+ if (_rx_buffer->head == _rx_buffer->tail) {
+ return -1;
+ } else {
+ unsigned char c = _rx_buffer->buffer[_rx_buffer->tail];
+ _rx_buffer->tail = (_rx_buffer->tail + 1) % RX_BUFFER_SIZE;
+ return c;
+ }
}
void HardwareSerial::flush()
{
- serialFlush();
+ // don't reverse this or there may be problems if the RX interrupt
+ // occurs after reading the value of rx_buffer_head but before writing
+ // the value to rx_buffer_tail; the previous value of rx_buffer_head
+ // may be written to rx_buffer_tail, making it appear as if the buffer
+ // don't reverse this or there may be problems if the RX interrupt
+ // occurs after reading the value of rx_buffer_head but before writing
+ // the value to rx_buffer_tail; the previous value of rx_buffer_head
+ // may be written to rx_buffer_tail, making it appear as if the buffer
+ // were full, not empty.
+ _rx_buffer->head = _rx_buffer->tail;
}
-void HardwareSerial::write(uint8_t b) {
- serialWrite(b);
+void HardwareSerial::write(uint8_t c)
+{
+ while (!((*_ucsra) & (1 << _udre)))
+ ;
+
+ *_udr = c;
}
// Preinstantiate Objects //////////////////////////////////////////////////////
-HardwareSerial Serial = HardwareSerial();
+#if defined(__AVR_ATmega8__)
+HardwareSerial Serial(&rx_buffer, &UBRRH, &UBRRL, &UCSRA, &UCSRB, &UDR, RXEN, TXEN, RXCIE, UDRE);
+#else
+HardwareSerial Serial(&rx_buffer, &UBRR0H, &UBRR0L, &UCSR0A, &UCSR0B, &UDR0, RXEN0, TXEN0, RXCIE0, UDRE0);
+#endif
+
+#if defined(__AVR_ATmega1280__)
+HardwareSerial Serial1(&rx_buffer1, &UBRR1H, &UBRR1L, &UCSR1A, &UCSR1B, &UDR1, RXEN1, TXEN1, RXCIE1, UDRE1);
+HardwareSerial Serial2(&rx_buffer2, &UBRR2H, &UBRR2L, &UCSR2A, &UCSR2B, &UDR2, RXEN2, TXEN2, RXCIE2, UDRE2);
+HardwareSerial Serial3(&rx_buffer3, &UBRR3H, &UBRR3L, &UCSR3A, &UCSR3B, &UDR3, RXEN3, TXEN3, RXCIE3, UDRE3);
+#endif
diff --git a/cores/arduino/HardwareSerial.h b/cores/arduino/HardwareSerial.h
index e4cb969..55abf07 100755
--- a/cores/arduino/HardwareSerial.h
+++ b/cores/arduino/HardwareSerial.h
@@ -24,9 +24,27 @@
#include "Print.h"
+struct ring_buffer;
+
class HardwareSerial : public Print
{
+ private:
+ ring_buffer *_rx_buffer;
+ volatile uint8_t *_ubrrh;
+ volatile uint8_t *_ubrrl;
+ volatile uint8_t *_ucsra;
+ volatile uint8_t *_ucsrb;
+ volatile uint8_t *_udr;
+ uint8_t _rxen;
+ uint8_t _txen;
+ uint8_t _rxcie;
+ uint8_t _udre;
public:
+ HardwareSerial(ring_buffer *rx_buffer,
+ volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
+ volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
+ volatile uint8_t *udr,
+ uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udre);
void begin(long);
uint8_t available(void);
int read(void);
@@ -36,5 +54,11 @@ class HardwareSerial : public Print
extern HardwareSerial Serial;
+#if defined(__AVR_ATmega1280__)
+extern HardwareSerial Serial1;
+extern HardwareSerial Serial2;
+extern HardwareSerial Serial3;
+#endif
+
#endif
diff --git a/cores/arduino/WInterrupts.c b/cores/arduino/WInterrupts.c
index 8b9003f..69a78b0 100755
--- a/cores/arduino/WInterrupts.c
+++ b/cores/arduino/WInterrupts.c
@@ -44,29 +44,101 @@ void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) {
if(interruptNum < EXTERNAL_NUM_INTERRUPTS) {
intFunc[interruptNum] = userFunc;
- if (interruptNum == 0) {
- // Configure the interrupt mode (trigger on low input, any change, rising
- // edge, or falling edge). The mode constants were chosen to correspond
- // to the configuration bits in the hardware register, so we simply shift
- // the mode into place.
- EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
+ // Configure the interrupt mode (trigger on low input, any change, rising
+ // edge, or falling edge). The mode constants were chosen to correspond
+ // to the configuration bits in the hardware register, so we simply shift
+ // the mode into place.
+
+ // Enable the interrupt.
- // Enable the interrupt.
+ switch (interruptNum) {
+#if defined(__AVR_ATmega1280__)
+ case 2:
+ EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
+ EIMSK |= (1 << INT0);
+ break;
+ case 3:
+ EICRA = (EICRA & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
+ EIMSK |= (1 << INT1);
+ break;
+ case 4:
+ EICRA = (EICRA & ~((1 << ISC20) | (1 << ISC21))) | (mode << ISC20);
+ EIMSK |= (1 << INT2);
+ break;
+ case 5:
+ EICRA = (EICRA & ~((1 << ISC30) | (1 << ISC31))) | (mode << ISC30);
+ EIMSK |= (1 << INT3);
+ break;
+ case 0:
+ EICRB = (EICRB & ~((1 << ISC40) | (1 << ISC41))) | (mode << ISC40);
+ EIMSK |= (1 << INT4);
+ break;
+ case 1:
+ EICRB = (EICRB & ~((1 << ISC50) | (1 << ISC51))) | (mode << ISC50);
+ EIMSK |= (1 << INT5);
+ break;
+ case 6:
+ EICRB = (EICRB & ~((1 << ISC60) | (1 << ISC61))) | (mode << ISC60);
+ EIMSK |= (1 << INT6);
+ break;
+ case 7:
+ EICRB = (EICRB & ~((1 << ISC70) | (1 << ISC71))) | (mode << ISC70);
+ EIMSK |= (1 << INT7);
+ break;
+#else
+ case 0:
+ EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
EIMSK |= (1 << INT0);
- } else {
+ break;
+ case 1:
EICRA = (EICRA & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
EIMSK |= (1 << INT1);
+ break;
+#endif
}
}
}
void detachInterrupt(uint8_t interruptNum) {
if(interruptNum < EXTERNAL_NUM_INTERRUPTS) {
- if (interruptNum == 0)
- // Disable the interrupt.
+ // Disable the interrupt. (We can't assume that interruptNum is equal
+ // to the number of the EIMSK bit to clear, as this isn't true on the
+ // ATmega8. There, INT0 is 6 and INT1 is 7.)
+ switch (interruptNum) {
+#if defined(__AVR_ATmega1280__)
+ case 2:
+ EIMSK &= ~(1 << INT0);
+ break;
+ case 3:
+ EIMSK &= ~(1 << INT1);
+ break;
+ case 4:
+ EIMSK &= ~(1 << INT2);
+ break;
+ case 5:
+ EIMSK &= ~(1 << INT3);
+ break;
+ case 0:
+ EIMSK &= ~(1 << INT4);
+ break;
+ case 1:
+ EIMSK &= ~(1 << INT5);
+ break;
+ case 6:
+ EIMSK &= ~(1 << INT6);
+ break;
+ case 7:
+ EIMSK &= ~(1 << INT7);
+ break;
+#else
+ case 0:
EIMSK &= ~(1 << INT0);
- else
+ break;
+ case 1:
EIMSK &= ~(1 << INT1);
+ break;
+#endif
+ }
intFunc[interruptNum] = 0;
}
@@ -78,6 +150,50 @@ void attachInterruptTwi(void (*userFunc)(void) ) {
}
*/
+#if defined(__AVR_ATmega1280__)
+
+SIGNAL(INT0_vect) {
+ if(intFunc[EXTERNAL_INT_2])
+ intFunc[EXTERNAL_INT_2]();
+}
+
+SIGNAL(INT1_vect) {
+ if(intFunc[EXTERNAL_INT_3])
+ intFunc[EXTERNAL_INT_3]();
+}
+
+SIGNAL(INT2_vect) {
+ if(intFunc[EXTERNAL_INT_4])
+ intFunc[EXTERNAL_INT_4]();
+}
+
+SIGNAL(INT3_vect) {
+ if(intFunc[EXTERNAL_INT_5])
+ intFunc[EXTERNAL_INT_5]();
+}
+
+SIGNAL(INT4_vect) {
+ if(intFunc[EXTERNAL_INT_0])
+ intFunc[EXTERNAL_INT_0]();
+}
+
+SIGNAL(INT5_vect) {
+ if(intFunc[EXTERNAL_INT_1])
+ intFunc[EXTERNAL_INT_1]();
+}
+
+SIGNAL(INT6_vect) {
+ if(intFunc[EXTERNAL_INT_6])
+ intFunc[EXTERNAL_INT_6]();
+}
+
+SIGNAL(INT7_vect) {
+ if(intFunc[EXTERNAL_INT_7])
+ intFunc[EXTERNAL_INT_7]();
+}
+
+#else
+
SIGNAL(INT0_vect) {
if(intFunc[EXTERNAL_INT_0])
intFunc[EXTERNAL_INT_0]();
@@ -88,6 +204,8 @@ SIGNAL(INT1_vect) {
intFunc[EXTERNAL_INT_1]();
}
+#endif
+
/*
SIGNAL(SIG_2WIRE_SERIAL) {
if(twiIntFunc)
diff --git a/cores/arduino/pins_arduino.c b/cores/arduino/pins_arduino.c
index ef3f168..1c1c088 100755
--- a/cores/arduino/pins_arduino.c
+++ b/cores/arduino/pins_arduino.c
@@ -51,15 +51,315 @@
//
// (PWM+ indicates the additional PWM pins on the ATmega168.)
+// ATMEL ATMEGA1280 / ARDUINO
+//
+// 0-7 PE0-PE7 works
+// 8-13 PB0-PB5 works
+// 14-21 PA0-PA7 works
+// 22-29 PH0-PH7 works
+// 30-35 PG5-PG0 works
+// 36-43 PC7-PC0 works
+// 44-51 PJ7-PJ0 works
+// 52-59 PL7-PL0 works
+// 60-67 PD7-PD0 works
+// A0-A7 PF0-PF7
+// A8-A15 PK0-PK7
+#define PA 1
#define PB 2
#define PC 3
#define PD 4
+#define PE 5
+#define PF 6
+#define PG 7
+#define PH 8
+#define PJ 10
+#define PK 11
+#define PL 12
+
+#define REPEAT8(x) x, x, x, x, x, x, x, x
+#define BV0TO7 _BV(0), _BV(1), _BV(2), _BV(3), _BV(4), _BV(5), _BV(6), _BV(7)
+#define BV7TO0 _BV(7), _BV(6), _BV(5), _BV(4), _BV(3), _BV(2), _BV(1), _BV(0)
+
+
+#if defined(__AVR_ATmega1280__)
+const uint16_t PROGMEM port_to_mode_PGM[] = {
+ NOT_A_PORT,
+ &DDRA,
+ &DDRB,
+ &DDRC,
+ &DDRD,
+ &DDRE,
+ &DDRF,
+ &DDRG,
+ &DDRH,
+ NOT_A_PORT,
+ &DDRJ,
+ &DDRK,
+ &DDRL,
+};
+
+const uint16_t PROGMEM port_to_output_PGM[] = {
+ NOT_A_PORT,
+ &PORTA,
+ &PORTB,
+ &PORTC,
+ &PORTD,
+ &PORTE,
+ &PORTF,
+ &PORTG,
+ &PORTH,
+ NOT_A_PORT,
+ &PORTJ,
+ &PORTK,
+ &PORTL,
+};
+const uint16_t PROGMEM port_to_input_PGM[] = {
+ NOT_A_PIN,
+ &PINA,
+ &PINB,
+ &PINC,
+ &PIND,
+ &PINE,
+ &PINF,
+ &PING,
+ &PINH,
+ NOT_A_PIN,
+ &PINJ,
+ &PINK,
+ &PINL,
+};
+
+const uint8_t PROGMEM digital_pin_to_port_PGM[] = {
+ // PORTLIST
+ // -------------------------------------------
+ PE , // PE 0 ** 0 ** USART0_RX
+ PE , // PE 1 ** 1 ** USART0_TX
+ PE , // PE 4 ** 2 ** PWM2
+ PE , // PE 5 ** 3 ** PWM3
+ PG , // PG 5 ** 4 ** PWM4
+ PE , // PE 3 ** 5 ** PWM5
+ PH , // PH 3 ** 6 ** PWM6
+ PH , // PH 4 ** 7 ** PWM7
+ PH , // PH 5 ** 8 ** PWM8
+ PH , // PH 6 ** 9 ** PWM9
+ PB , // PB 4 ** 10 ** PWM10
+ PB , // PB 5 ** 11 ** PWM11
+ PB , // PB 6 ** 12 ** PWM12
+ PB , // PB 7 ** 13 ** PWM13
+ PJ , // PJ 1 ** 14 ** USART3_TX
+ PJ , // PJ 0 ** 15 ** USART3_RX
+ PH , // PH 1 ** 16 ** USART2_TX
+ PH , // PH 0 ** 17 ** USART2_RX
+ PD , // PD 3 ** 18 ** USART1_TX
+ PD , // PD 2 ** 19 ** USART1_RX
+ PD , // PD 1 ** 20 ** I2C_SDA
+ PD , // PD 0 ** 21 ** I2C_SCL
+ PA , // PA 0 ** 22 ** D22
+ PA , // PA 1 ** 23 ** D23
+ PA , // PA 2 ** 24 ** D24
+ PA , // PA 3 ** 25 ** D25
+ PA , // PA 4 ** 26 ** D26
+ PA , // PA 5 ** 27 ** D27
+ PA , // PA 6 ** 28 ** D28
+ PA , // PA 7 ** 29 ** D29
+ PC , // PC 7 ** 30 ** D30
+ PC , // PC 6 ** 31 ** D31
+ PC , // PC 5 ** 32 ** D32
+ PC , // PC 4 ** 33 ** D33
+ PC , // PC 3 ** 34 ** D34
+ PC , // PC 2 ** 35 ** D35
+ PC , // PC 1 ** 36 ** D36
+ PC , // PC 0 ** 37 ** D37
+ PD , // PD 7 ** 38 ** D38
+ PG , // PG 2 ** 39 ** D39
+ PG , // PG 1 ** 40 ** D40
+ PG , // PG 0 ** 41 ** D41
+ PL , // PL 7 ** 42 ** D42
+ PL , // PL 6 ** 43 ** D43
+ PL , // PL 5 ** 44 ** D44
+ PL , // PL 4 ** 45 ** D45
+ PL , // PL 3 ** 46 ** D46
+ PL , // PL 2 ** 47 ** D47
+ PL , // PL 1 ** 48 ** D48
+ PL , // PL 0 ** 49 ** D49
+ PB , // PB 3 ** 50 ** SPI_MISO
+ PB , // PB 2 ** 51 ** SPI_MOSI
+ PB , // PB 1 ** 52 ** SPI_SCK
+ PB , // PB 0 ** 53 ** SPI_SS
+ PF , // PF 0 ** 54 ** A0
+ PF , // PF 1 ** 55 ** A1
+ PF , // PF 2 ** 56 ** A2
+ PF , // PF 3 ** 57 ** A3
+ PF , // PF 4 ** 58 ** A4
+ PF , // PF 5 ** 59 ** A5
+ PF , // PF 6 ** 60 ** A6
+ PF , // PF 7 ** 61 ** A7
+ PK , // PK 0 ** 62 ** A8
+ PK , // PK 1 ** 63 ** A9
+ PK , // PK 2 ** 64 ** A10
+ PK , // PK 3 ** 65 ** A11
+ PK , // PK 4 ** 66 ** A12
+ PK , // PK 5 ** 67 ** A13
+ PK , // PK 6 ** 68 ** A14
+ PK , // PK 7 ** 69 ** A15
+};
+
+const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
+ // PIN IN PORT
+ // -------------------------------------------
+ _BV( 0 ) , // PE 0 ** 0 ** USART0_RX
+ _BV( 1 ) , // PE 1 ** 1 ** USART0_TX
+ _BV( 4 ) , // PE 4 ** 2 ** PWM2
+ _BV( 5 ) , // PE 5 ** 3 ** PWM3
+ _BV( 5 ) , // PG 5 ** 4 ** PWM4
+ _BV( 3 ) , // PE 3 ** 5 ** PWM5
+ _BV( 3 ) , // PH 3 ** 6 ** PWM6
+ _BV( 4 ) , // PH 4 ** 7 ** PWM7
+ _BV( 5 ) , // PH 5 ** 8 ** PWM8
+ _BV( 6 ) , // PH 6 ** 9 ** PWM9
+ _BV( 4 ) , // PB 4 ** 10 ** PWM10
+ _BV( 5 ) , // PB 5 ** 11 ** PWM11
+ _BV( 6 ) , // PB 6 ** 12 ** PWM12
+ _BV( 7 ) , // PB 7 ** 13 ** PWM13
+ _BV( 1 ) , // PJ 1 ** 14 ** USART3_TX
+ _BV( 0 ) , // PJ 0 ** 15 ** USART3_RX
+ _BV( 1 ) , // PH 1 ** 16 ** USART2_TX
+ _BV( 0 ) , // PH 0 ** 17 ** USART2_RX
+ _BV( 3 ) , // PD 3 ** 18 ** USART1_TX
+ _BV( 2 ) , // PD 2 ** 19 ** USART1_RX
+ _BV( 1 ) , // PD 1 ** 20 ** I2C_SDA
+ _BV( 0 ) , // PD 0 ** 21 ** I2C_SCL
+ _BV( 0 ) , // PA 0 ** 22 ** D22
+ _BV( 1 ) , // PA 1 ** 23 ** D23
+ _BV( 2 ) , // PA 2 ** 24 ** D24
+ _BV( 3 ) , // PA 3 ** 25 ** D25
+ _BV( 4 ) , // PA 4 ** 26 ** D26
+ _BV( 5 ) , // PA 5 ** 27 ** D27
+ _BV( 6 ) , // PA 6 ** 28 ** D28
+ _BV( 7 ) , // PA 7 ** 29 ** D29
+ _BV( 7 ) , // PC 7 ** 30 ** D30
+ _BV( 6 ) , // PC 6 ** 31 ** D31
+ _BV( 5 ) , // PC 5 ** 32 ** D32
+ _BV( 4 ) , // PC 4 ** 33 ** D33
+ _BV( 3 ) , // PC 3 ** 34 ** D34
+ _BV( 2 ) , // PC 2 ** 35 ** D35
+ _BV( 1 ) , // PC 1 ** 36 ** D36
+ _BV( 0 ) , // PC 0 ** 37 ** D37
+ _BV( 7 ) , // PD 7 ** 38 ** D38
+ _BV( 2 ) , // PG 2 ** 39 ** D39
+ _BV( 1 ) , // PG 1 ** 40 ** D40
+ _BV( 0 ) , // PG 0 ** 41 ** D41
+ _BV( 7 ) , // PL 7 ** 42 ** D42
+ _BV( 6 ) , // PL 6 ** 43 ** D43
+ _BV( 5 ) , // PL 5 ** 44 ** D44
+ _BV( 4 ) , // PL 4 ** 45 ** D45
+ _BV( 3 ) , // PL 3 ** 46 ** D46
+ _BV( 2 ) , // PL 2 ** 47 ** D47
+ _BV( 1 ) , // PL 1 ** 48 ** D48
+ _BV( 0 ) , // PL 0 ** 49 ** D49
+ _BV( 3 ) , // PB 3 ** 50 ** SPI_MISO
+ _BV( 2 ) , // PB 2 ** 51 ** SPI_MOSI
+ _BV( 1 ) , // PB 1 ** 52 ** SPI_SCK
+ _BV( 0 ) , // PB 0 ** 53 ** SPI_SS
+ _BV( 0 ) , // PF 0 ** 54 ** A0
+ _BV( 1 ) , // PF 1 ** 55 ** A1
+ _BV( 2 ) , // PF 2 ** 56 ** A2
+ _BV( 3 ) , // PF 3 ** 57 ** A3
+ _BV( 4 ) , // PF 4 ** 58 ** A4
+ _BV( 5 ) , // PF 5 ** 59 ** A5
+ _BV( 6 ) , // PF 6 ** 60 ** A6
+ _BV( 7 ) , // PF 7 ** 61 ** A7
+ _BV( 0 ) , // PK 0 ** 62 ** A8
+ _BV( 1 ) , // PK 1 ** 63 ** A9
+ _BV( 2 ) , // PK 2 ** 64 ** A10
+ _BV( 3 ) , // PK 3 ** 65 ** A11
+ _BV( 4 ) , // PK 4 ** 66 ** A12
+ _BV( 5 ) , // PK 5 ** 67 ** A13
+ _BV( 6 ) , // PK 6 ** 68 ** A14
+ _BV( 7 ) , // PK 7 ** 69 ** A15
+};
+
+const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
+ // TIMERS
+ // -------------------------------------------
+ NOT_ON_TIMER , // PE 0 ** 0 ** USART0_RX
+ NOT_ON_TIMER , // PE 1 ** 1 ** USART0_TX
+ TIMER3B , // PE 4 ** 2 ** PWM2
+ TIMER3C , // PE 5 ** 3 ** PWM3
+ TIMER0B , // PG 5 ** 4 ** PWM4
+ TIMER3A , // PE 3 ** 5 ** PWM5
+ TIMER4A , // PH 3 ** 6 ** PWM6
+ TIMER4B , // PH 4 ** 7 ** PWM7
+ TIMER4C , // PH 5 ** 8 ** PWM8
+ TIMER2B , // PH 6 ** 9 ** PWM9
+ TIMER2A , // PB 4 ** 10 ** PWM10
+ TIMER1A , // PB 5 ** 11 ** PWM11
+ TIMER1B , // PB 6 ** 12 ** PWM12
+ TIMER0A , // PB 7 ** 13 ** PWM13
+ NOT_ON_TIMER , // PJ 1 ** 14 ** USART3_TX
+ NOT_ON_TIMER , // PJ 0 ** 15 ** USART3_RX
+ NOT_ON_TIMER , // PH 1 ** 16 ** USART2_TX
+ NOT_ON_TIMER , // PH 0 ** 17 ** USART2_RX
+ NOT_ON_TIMER , // PD 3 ** 18 ** USART1_TX
+ NOT_ON_TIMER , // PD 2 ** 19 ** USART1_RX
+ NOT_ON_TIMER , // PD 1 ** 20 ** I2C_SDA
+ NOT_ON_TIMER , // PD 0 ** 21 ** I2C_SCL
+ NOT_ON_TIMER , // PA 0 ** 22 ** D22
+ NOT_ON_TIMER , // PA 1 ** 23 ** D23
+ NOT_ON_TIMER , // PA 2 ** 24 ** D24
+ NOT_ON_TIMER , // PA 3 ** 25 ** D25
+ NOT_ON_TIMER , // PA 4 ** 26 ** D26
+ NOT_ON_TIMER , // PA 5 ** 27 ** D27
+ NOT_ON_TIMER , // PA 6 ** 28 ** D28
+ NOT_ON_TIMER , // PA 7 ** 29 ** D29
+ NOT_ON_TIMER , // PC 7 ** 30 ** D30
+ NOT_ON_TIMER , // PC 6 ** 31 ** D31
+ NOT_ON_TIMER , // PC 5 ** 32 ** D32
+ NOT_ON_TIMER , // PC 4 ** 33 ** D33
+ NOT_ON_TIMER , // PC 3 ** 34 ** D34
+ NOT_ON_TIMER , // PC 2 ** 35 ** D35
+ NOT_ON_TIMER , // PC 1 ** 36 ** D36
+ NOT_ON_TIMER , // PC 0 ** 37 ** D37
+ NOT_ON_TIMER , // PD 7 ** 38 ** D38
+ NOT_ON_TIMER , // PG 2 ** 39 ** D39
+ NOT_ON_TIMER , // PG 1 ** 40 ** D40
+ NOT_ON_TIMER , // PG 0 ** 41 ** D41
+ NOT_ON_TIMER , // PL 7 ** 42 ** D42
+ NOT_ON_TIMER , // PL 6 ** 43 ** D43
+ TIMER5C , // PL 5 ** 44 ** D44
+ TIMER5B , // PL 4 ** 45 ** D45
+ TIMER5A , // PL 3 ** 46 ** D46
+ NOT_ON_TIMER , // PL 2 ** 47 ** D47
+ NOT_ON_TIMER , // PL 1 ** 48 ** D48
+ NOT_ON_TIMER , // PL 0 ** 49 ** D49
+ NOT_ON_TIMER , // PB 3 ** 50 ** SPI_MISO
+ NOT_ON_TIMER , // PB 2 ** 51 ** SPI_MOSI
+ NOT_ON_TIMER , // PB 1 ** 52 ** SPI_SCK
+ NOT_ON_TIMER , // PB 0 ** 53 ** SPI_SS
+ NOT_ON_TIMER , // PF 0 ** 54 ** A0
+ NOT_ON_TIMER , // PF 1 ** 55 ** A1
+ NOT_ON_TIMER , // PF 2 ** 56 ** A2
+ NOT_ON_TIMER , // PF 3 ** 57 ** A3
+ NOT_ON_TIMER , // PF 4 ** 58 ** A4
+ NOT_ON_TIMER , // PF 5 ** 59 ** A5
+ NOT_ON_TIMER , // PF 6 ** 60 ** A6
+ NOT_ON_TIMER , // PF 7 ** 61 ** A7
+ NOT_ON_TIMER , // PK 0 ** 62 ** A8
+ NOT_ON_TIMER , // PK 1 ** 63 ** A9
+ NOT_ON_TIMER , // PK 2 ** 64 ** A10
+ NOT_ON_TIMER , // PK 3 ** 65 ** A11
+ NOT_ON_TIMER , // PK 4 ** 66 ** A12
+ NOT_ON_TIMER , // PK 5 ** 67 ** A13
+ NOT_ON_TIMER , // PK 6 ** 68 ** A14
+ NOT_ON_TIMER , // PK 7 ** 69 ** A15
+};
+#else
// these arrays map port names (e.g. port B) to the
// appropriate addresses for various functions (e.g. reading
// and writing)
-const uint8_t PROGMEM port_to_mode_PGM[] = {
+const uint16_t PROGMEM port_to_mode_PGM[] = {
NOT_A_PORT,
NOT_A_PORT,
&DDRB,
@@ -67,7 +367,7 @@ const uint8_t PROGMEM port_to_mode_PGM[] = {
&DDRD,
};
-const uint8_t PROGMEM port_to_output_PGM[] = {
+const uint16_t PROGMEM port_to_output_PGM[] = {
NOT_A_PORT,
NOT_A_PORT,
&PORTB,
@@ -75,7 +375,7 @@ const uint8_t PROGMEM port_to_output_PGM[] = {
&PORTD,
};
-const uint8_t PROGMEM port_to_input_PGM[] = {
+const uint16_t PROGMEM port_to_input_PGM[] = {
NOT_A_PORT,
NOT_A_PORT,
&PINB,
@@ -166,4 +466,4 @@ const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
NOT_ON_TIMER,
NOT_ON_TIMER,
};
-
+#endif
diff --git a/cores/arduino/pins_arduino.h b/cores/arduino/pins_arduino.h
index e0b7add..c7e40fd 100644
--- a/cores/arduino/pins_arduino.h
+++ b/cores/arduino/pins_arduino.h
@@ -39,14 +39,25 @@
#define TIMER2A 6
#define TIMER2B 7
-extern const uint8_t PROGMEM port_to_mode_PGM[];
-extern const uint8_t PROGMEM port_to_input_PGM[];
-extern const uint8_t PROGMEM port_to_output_PGM[];
+#define TIMER3A 8
+#define TIMER3B 9
+#define TIMER3C 10
+#define TIMER4A 11
+#define TIMER4B 12
+#define TIMER4C 13
+#define TIMER5A 14
+#define TIMER5B 15
+#define TIMER5C 16
+
+// On the ATmega1280, the addresses of some of the port registers are
+// greater than 255, so we can't store them in uint8_t's.
+extern const uint16_t PROGMEM port_to_mode_PGM[];
+extern const uint16_t PROGMEM port_to_input_PGM[];
+extern const uint16_t PROGMEM port_to_output_PGM[];
extern const uint8_t PROGMEM digital_pin_to_port_PGM[];
-extern const uint8_t PROGMEM digital_pin_to_bit_PGM[];
+// extern const uint8_t PROGMEM digital_pin_to_bit_PGM[];
extern const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[];
-
extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
// Get the bit location within the hardware port of the given virtual pin.
@@ -58,8 +69,8 @@ extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
#define digitalPinToBitMask(P) ( pgm_read_byte( digital_pin_to_bit_mask_PGM + (P) ) )
#define digitalPinToTimer(P) ( pgm_read_byte( digital_pin_to_timer_PGM + (P) ) )
#define analogInPinToBit(P) (P)
-#define portOutputRegister(P) ( (volatile uint8_t *)( pgm_read_byte( port_to_output_PGM + (P))) )
-#define portInputRegister(P) ( (volatile uint8_t *)( pgm_read_byte( port_to_input_PGM + (P))) )
-#define portModeRegister(P) ( (volatile uint8_t *)( pgm_read_byte( port_to_mode_PGM + (P))) )
+#define portOutputRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_output_PGM + (P))) )
+#define portInputRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_input_PGM + (P))) )
+#define portModeRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_mode_PGM + (P))) )
#endif
diff --git a/cores/arduino/wiring.c b/cores/arduino/wiring.c
index aaf7b86..73c26f2 100755
--- a/cores/arduino/wiring.c
+++ b/cores/arduino/wiring.c
@@ -196,6 +196,17 @@ void init()
sbi(TCCR2A, WGM20);
#endif
+#if defined(__AVR_ATmega1280__)
+ // set timer 3, 4, 5 prescale factor to 64
+ sbi(TCCR3B, CS31); sbi(TCCR3B, CS30);
+ sbi(TCCR4B, CS41); sbi(TCCR4B, CS40);
+ sbi(TCCR5B, CS51); sbi(TCCR5B, CS50);
+ // put timer 3, 4, 5 in 8-bit phase correct pwm mode
+ sbi(TCCR3A, WGM30);
+ sbi(TCCR4A, WGM40);
+ sbi(TCCR5A, WGM50);
+#endif
+
// set a2d prescale factor to 128
// 16 MHz / 128 = 125 KHz, inside the desired 50-200 KHz range.
// XXX: this will not work properly for other clock speeds, and
diff --git a/cores/arduino/wiring_analog.c b/cores/arduino/wiring_analog.c
index f3767d2..529ad52 100755
--- a/cores/arduino/wiring_analog.c
+++ b/cores/arduino/wiring_analog.c
@@ -37,12 +37,18 @@ void analogReference(uint8_t mode)
int analogRead(uint8_t pin)
{
- uint8_t low, high, ch = analogInPinToBit(pin);
+ uint8_t low, high;
// set the analog reference (high two bits of ADMUX) and select the
// channel (low 4 bits). this also sets ADLAR (left-adjust result)
// to 0 (the default).
- ADMUX = (analog_reference << 6) | (pin & 0x0f);
+ ADMUX = (analog_reference << 6) | (pin & 0x07);
+
+#if defined(__AVR_ATmega1280__)
+ // the MUX5 bit of ADCSRB selects whether we're reading from channels
+ // 0 to 7 (MUX5 low) or 8 to 15 (MUX5 high).
+ ADCSRB = (ADCSRB & ~(1 << MUX5)) | (((pin >> 3) & 0x01) << MUX5);
+#endif
// without a delay, we seem to read from the wrong channel
//delay(1);
@@ -95,23 +101,23 @@ void analogWrite(uint8_t pin, int val)
OCR2 = val;
#else
} else if (digitalPinToTimer(pin) == TIMER0A) {
- if (val == 0) {
- digitalWrite(pin, LOW);
- } else {
- // connect pwm to pin on timer 0, channel A
- sbi(TCCR0A, COM0A1);
- // set pwm duty
- OCR0A = val;
- }
+ if (val == 0) {
+ digitalWrite(pin, LOW);
+ } else {
+ // connect pwm to pin on timer 0, channel A
+ sbi(TCCR0A, COM0A1);
+ // set pwm duty
+ OCR0A = val;
+ }
} else if (digitalPinToTimer(pin) == TIMER0B) {
- if (val == 0) {
- digitalWrite(pin, LOW);
- } else {
- // connect pwm to pin on timer 0, channel B
- sbi(TCCR0A, COM0B1);
- // set pwm duty
- OCR0B = val;
- }
+ if (val == 0) {
+ digitalWrite(pin, LOW);
+ } else {
+ // connect pwm to pin on timer 0, channel B
+ sbi(TCCR0A, COM0B1);
+ // set pwm duty
+ OCR0B = val;
+ }
} else if (digitalPinToTimer(pin) == TIMER2A) {
// connect pwm to pin on timer 2, channel A
sbi(TCCR2A, COM2A1);
@@ -123,6 +129,49 @@ void analogWrite(uint8_t pin, int val)
// set pwm duty
OCR2B = val;
#endif
+#if defined(__AVR_ATmega1280__)
+ // XXX: need to handle other timers here
+ } else if (digitalPinToTimer(pin) == TIMER3A) {
+ // connect pwm to pin on timer 3, channel A
+ sbi(TCCR3A, COM3A1);
+ // set pwm duty
+ OCR3A = val;
+ } else if (digitalPinToTimer(pin) == TIMER3B) {
+ // connect pwm to pin on timer 3, channel B
+ sbi(TCCR3A, COM3B1);
+ // set pwm duty
+ OCR3B = val;
+ } else if (digitalPinToTimer(pin) == TIMER3C) {
+ // connect pwm to pin on timer 3, channel C
+ sbi(TCCR3A, COM3C1);
+ // set pwm duty
+ OCR3C = val;
+ } else if (digitalPinToTimer(pin) == TIMER4A) {
+ // connect pwm to pin on timer 4, channel A
+ sbi(TCCR4A, COM4A1);
+ // set pwm duty
+ OCR4A = val;
+ } else if (digitalPinToTimer(pin) == TIMER4B) {
+ // connect pwm to pin on timer 4, channel B
+ sbi(TCCR4A, COM4B1);
+ // set pwm duty
+ OCR4B = val;
+ } else if (digitalPinToTimer(pin) == TIMER4C) {
+ // connect pwm to pin on timer 4, channel C
+ sbi(TCCR4A, COM4C1);
+ // set pwm duty
+ OCR4C = val;
+ } else if (digitalPinToTimer(pin) == TIMER5A) {
+ // connect pwm to pin on timer 5, channel A
+ sbi(TCCR5A, COM5A1);
+ // set pwm duty
+ OCR5A = val;
+ } else if (digitalPinToTimer(pin) == TIMER5B) {
+ // connect pwm to pin on timer 5, channel B
+ sbi(TCCR5A, COM5B1);
+ // set pwm duty
+ OCR5B = val;
+#endif
} else if (val < 128)
digitalWrite(pin, LOW);
else
diff --git a/cores/arduino/wiring_digital.c b/cores/arduino/wiring_digital.c
index 3044e18..1cdbf6c 100755
--- a/cores/arduino/wiring_digital.c
+++ b/cores/arduino/wiring_digital.c
@@ -61,6 +61,18 @@ static inline void turnOffPWM(uint8_t timer)
if (timer == TIMER2A) cbi(TCCR2A, COM2A1);
if (timer == TIMER2B) cbi(TCCR2A, COM2B1);
#endif
+
+#if defined(__AVR_ATmega1280__)
+ if (timer == TIMER3A) cbi(TCCR3A, COM3A1);
+ if (timer == TIMER3B) cbi(TCCR3A, COM3B1);
+ if (timer == TIMER3C) cbi(TCCR3A, COM3C1);
+ if (timer == TIMER4A) cbi(TCCR4A, COM4A1);
+ if (timer == TIMER4B) cbi(TCCR4A, COM4B1);
+ if (timer == TIMER4C) cbi(TCCR4A, COM4C1);
+ if (timer == TIMER5A) cbi(TCCR5A, COM5A1);
+ if (timer == TIMER5B) cbi(TCCR5A, COM5B1);
+ if (timer == TIMER5C) cbi(TCCR5A, COM5C1);
+#endif
}
void digitalWrite(uint8_t pin, uint8_t val)
diff --git a/cores/arduino/wiring_private.h b/cores/arduino/wiring_private.h
index b30c1f0..2dfe552 100755
--- a/cores/arduino/wiring_private.h
+++ b/cores/arduino/wiring_private.h
@@ -46,8 +46,18 @@ extern "C"{
#define EXTERNAL_INT_0 0
#define EXTERNAL_INT_1 1
+#define EXTERNAL_INT_2 2
+#define EXTERNAL_INT_3 3
+#define EXTERNAL_INT_4 4
+#define EXTERNAL_INT_5 5
+#define EXTERNAL_INT_6 6
+#define EXTERNAL_INT_7 7
+#if defined(__AVR_ATmega1280__)
+#define EXTERNAL_NUM_INTERRUPTS 8
+#else
#define EXTERNAL_NUM_INTERRUPTS 2
+#endif
typedef void (*voidFuncPtr)(void);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-22 15:31:06 +0000