diff options
Diffstat (limited to 'bootloaders/stk500v2/stk500boot.c')
| -rwxr-xr-x | bootloaders/stk500v2/stk500boot.c | 1996 |
1 files changed, 1996 insertions, 0 deletions
diff --git a/bootloaders/stk500v2/stk500boot.c b/bootloaders/stk500v2/stk500boot.c new file mode 100755 index 0000000..13dec89 --- /dev/null +++ b/bootloaders/stk500v2/stk500boot.c @@ -0,0 +1,1996 @@ +/***************************************************************************** +Title: STK500v2 compatible bootloader + Modified for Wiring board ATMega128-16MHz +Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury +File: $Id: stk500boot.c,v 1.11 2006/06/25 12:39:17 peter Exp $ +Compiler: avr-gcc 3.4.5 or 4.1 / avr-libc 1.4.3 +Hardware: All AVRs with bootloader support, tested with ATmega8 +License: GNU General Public License + +Modified: Worapoht Kornkaewwattanakul <dev@avride.com> http://www.avride.com +Date: 17 October 2007 +Update: 1st, 29 Dec 2007 : Enable CMD_SPI_MULTI but ignore unused command by return 0x00 byte response.. +Compiler: WINAVR20060421 +Description: add timeout feature like previous Wiring bootloader + +DESCRIPTION: + This program allows an AVR with bootloader capabilities to + read/write its own Flash/EEprom. To enter Programming mode + an input pin is checked. If this pin is pulled low, programming mode + is entered. If not, normal execution is done from $0000 + "reset" vector in Application area. + Size fits into a 1024 word bootloader section + when compiled with avr-gcc 4.1 + (direct replace on Wiring Board without fuse setting changed) + +USAGE: + - Set AVR MCU type and clock-frequency (F_CPU) in the Makefile. + - Set baud rate below (AVRISP only works with 115200 bps) + - compile/link the bootloader with the supplied Makefile + - program the "Boot Flash section size" (BOOTSZ fuses), + for boot-size 1024 words: program BOOTSZ01 + - enable the BOOT Reset Vector (program BOOTRST) + - Upload the hex file to the AVR using any ISP programmer + - Program Boot Lock Mode 3 (program BootLock 11 and BootLock 12 lock bits) // (leave them) + - Reset your AVR while keeping PROG_PIN pulled low // (for enter bootloader by switch) + - Start AVRISP Programmer (AVRStudio/Tools/Program AVR) + - AVRISP will detect the bootloader + - Program your application FLASH file and optional EEPROM file using AVRISP + +Note: + Erasing the device without flashing, through AVRISP GUI button "Erase Device" + is not implemented, due to AVRStudio limitations. + Flash is always erased before programming. + + AVRdude: + Please uncomment #define REMOVE_CMD_SPI_MULTI when using AVRdude. + Comment #define REMOVE_PROGRAM_LOCK_BIT_SUPPORT to reduce code size + Read Fuse Bits and Read/Write Lock Bits is not supported + +NOTES: + Based on Atmel Application Note AVR109 - Self-programming + Based on Atmel Application Note AVR068 - STK500v2 Protocol + +LICENSE: + Copyright (C) 2006 Peter Fleury + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + +*****************************************************************************/ + +//************************************************************************ +//* Edit History +//************************************************************************ +//* Jul 7, 2010 <MLS> = Mark Sproul msproul@skycharoit.com +//* Jul 7, 2010 <MLS> Working on mega2560. No Auto-restart +//* Jul 7, 2010 <MLS> Switched to 8K bytes (4K words) so that we have room for the monitor +//* Jul 8, 2010 <MLS> Found older version of source that had auto restart, put that code back in +//* Jul 8, 2010 <MLS> Adding monitor code +//* Jul 11, 2010 <MLS> Added blinking LED while waiting for download to start +//* Jul 11, 2010 <MLS> Added EEPROM test +//* Jul 29, 2010 <MLS> Added recchar_timeout for timing out on bootloading +//* Aug 23, 2010 <MLS> Added support for atmega2561 +//* Aug 26, 2010 <MLS> Removed support for BOOT_BY_SWITCH +//************************************************************************ + + + +#include <inttypes.h> +#include <avr/io.h> +#include <avr/interrupt.h> +#include <avr/boot.h> +#include <avr/pgmspace.h> +#include <util/delay.h> +#include <avr/eeprom.h> +#include <avr/common.h> +#include <stdlib.h> +#include "command.h" + + +#if defined(_MEGA_BOARD_) || defined(_BOARD_AMBER128_) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__) + #define ENABLE_MONITOR + static void RunMonitor(void); +#endif + +//#define _DEBUG_SERIAL_ +//#define _DEBUG_WITH_LEDS_ + + +/* + * Uncomment the following lines to save code space + */ +//#define REMOVE_PROGRAM_LOCK_BIT_SUPPORT // disable program lock bits +//#define REMOVE_BOOTLOADER_LED // no LED to show active bootloader +//#define REMOVE_CMD_SPI_MULTI // disable processing of SPI_MULTI commands, Remark this line for AVRDUDE <Worapoht> +// + + + +//************************************************************************ +//* LED on pin "PROGLED_PIN" on port "PROGLED_PORT" +//* indicates that bootloader is active +//* PG2 -> LED on Wiring board +//************************************************************************ +#define BLINK_LED_WHILE_WAITING + +#ifdef _MEGA_BOARD_ + #define PROGLED_PORT PORTB + #define PROGLED_DDR DDRB + #define PROGLED_PIN PINB7 +#elif defined( _BOARD_AMBER128_ ) + //* this is for the amber 128 http://www.soc-robotics.com/ + //* onbarod led is PORTE4 + #define PROGLED_PORT PORTD + #define PROGLED_DDR DDRD + #define PROGLED_PIN PINE7 +#elif defined( _CEREBOTPLUS_BOARD_ ) + //* this is for the Cerebot 2560 board + //* onbarod leds are on PORTE4-7 + #define PROGLED_PORT PORTE + #define PROGLED_DDR DDRE + #define PROGLED_PIN PINE7 +#elif defined( _PENGUINO_ ) + //* this is for the Penguino + //* onbarod led is PORTE4 + #define PROGLED_PORT PORTC + #define PROGLED_DDR DDRC + #define PROGLED_PIN PINC6 +#elif defined( _ANDROID_2561_ ) || defined( __AVR_ATmega2561__ ) + //* this is for the Boston Android 2561 + //* onbarod led is PORTE4 + #define PROGLED_PORT PORTA + #define PROGLED_DDR DDRA + #define PROGLED_PIN PINA3 +#else + #define PROGLED_PORT PORTG + #define PROGLED_DDR DDRG + #define PROGLED_PIN PING2 +#endif + + + +/* + * define CPU frequency in Mhz here if not defined in Makefile + */ +#ifndef F_CPU + #define F_CPU 16000000UL +#endif + +/* + * UART Baudrate, AVRStudio AVRISP only accepts 115200 bps + */ + +#ifndef BAUDRATE + #define BAUDRATE 115200 +#endif + +/* + * Enable (1) or disable (0) USART double speed operation + */ +#ifndef UART_BAUDRATE_DOUBLE_SPEED + #if defined (__AVR_ATmega32__) + #define UART_BAUDRATE_DOUBLE_SPEED 0 + #else + #define UART_BAUDRATE_DOUBLE_SPEED 1 + #endif +#endif + +/* + * HW and SW version, reported to AVRISP, must match version of AVRStudio + */ +#define CONFIG_PARAM_BUILD_NUMBER_LOW 0 +#define CONFIG_PARAM_BUILD_NUMBER_HIGH 0 +#define CONFIG_PARAM_HW_VER 0x0F +#define CONFIG_PARAM_SW_MAJOR 2 +#define CONFIG_PARAM_SW_MINOR 0x0A + +/* + * Calculate the address where the bootloader starts from FLASHEND and BOOTSIZE + * (adjust BOOTSIZE below and BOOTLOADER_ADDRESS in Makefile if you want to change the size of the bootloader) + */ +//#define BOOTSIZE 1024 +#if FLASHEND > 0x0F000 + #define BOOTSIZE 8192 +#else + #define BOOTSIZE 2048 +#endif + +#define APP_END (FLASHEND -(2*BOOTSIZE) + 1) + +/* + * Signature bytes are not available in avr-gcc io_xxx.h + */ +#if defined (__AVR_ATmega8__) + #define SIGNATURE_BYTES 0x1E9307 +#elif defined (__AVR_ATmega16__) + #define SIGNATURE_BYTES 0x1E9403 +#elif defined (__AVR_ATmega32__) + #define SIGNATURE_BYTES 0x1E9502 +#elif defined (__AVR_ATmega8515__) + #define SIGNATURE_BYTES 0x1E9306 +#elif defined (__AVR_ATmega8535__) + #define SIGNATURE_BYTES 0x1E9308 +#elif defined (__AVR_ATmega162__) + #define SIGNATURE_BYTES 0x1E9404 +#elif defined (__AVR_ATmega128__) + #define SIGNATURE_BYTES 0x1E9702 +#elif defined (__AVR_ATmega1280__) + #define SIGNATURE_BYTES 0x1E9703 +#elif defined (__AVR_ATmega2560__) + #define SIGNATURE_BYTES 0x1E9801 +#elif defined (__AVR_ATmega2561__) + #define SIGNATURE_BYTES 0x1e9802 +#else + #error "no signature definition for MCU available" +#endif + + +#if defined(__AVR_ATmega8__) || defined(__AVR_ATmega16__) || defined(__AVR_ATmega32__) \ + || defined(__AVR_ATmega8515__) || defined(__AVR_ATmega8535__) + /* ATMega8 with one USART */ + #define UART_BAUD_RATE_LOW UBRRL + #define UART_STATUS_REG UCSRA + #define UART_CONTROL_REG UCSRB + #define UART_ENABLE_TRANSMITTER TXEN + #define UART_ENABLE_RECEIVER RXEN + #define UART_TRANSMIT_COMPLETE TXC + #define UART_RECEIVE_COMPLETE RXC + #define UART_DATA_REG UDR + #define UART_DOUBLE_SPEED U2X + +#elif defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__) || defined(__AVR_ATmega162__) \ + || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega2561__) + /* ATMega with two USART, use UART0 */ + #define UART_BAUD_RATE_LOW UBRR0L + #define UART_STATUS_REG UCSR0A + #define UART_CONTROL_REG UCSR0B + #define UART_ENABLE_TRANSMITTER TXEN0 + #define UART_ENABLE_RECEIVER RXEN0 + #define UART_TRANSMIT_COMPLETE TXC0 + #define UART_RECEIVE_COMPLETE RXC0 + #define UART_DATA_REG UDR0 + #define UART_DOUBLE_SPEED U2X0 +#else + #error "no UART definition for MCU available" +#endif + + + +/* + * Macro to calculate UBBR from XTAL and baudrate + */ +#if defined(__AVR_ATmega32__) && UART_BAUDRATE_DOUBLE_SPEED + #define UART_BAUD_SELECT(baudRate,xtalCpu) ((xtalCpu / 4 / baudRate - 1) / 2) +#elif defined(__AVR_ATmega32__) + #define UART_BAUD_SELECT(baudRate,xtalCpu) ((xtalCpu / 8 / baudRate - 1) / 2) +#elif UART_BAUDRATE_DOUBLE_SPEED + #define UART_BAUD_SELECT(baudRate,xtalCpu) (((float)(xtalCpu))/(((float)(baudRate))*8.0)-1.0+0.5) +#else + #define UART_BAUD_SELECT(baudRate,xtalCpu) (((float)(xtalCpu))/(((float)(baudRate))*16.0)-1.0+0.5) +#endif + + +/* + * States used in the receive state machine + */ +#define ST_START 0 +#define ST_GET_SEQ_NUM 1 +#define ST_MSG_SIZE_1 2 +#define ST_MSG_SIZE_2 3 +#define ST_GET_TOKEN 4 +#define ST_GET_DATA 5 +#define ST_GET_CHECK 6 +#define ST_PROCESS 7 + +/* + * use 16bit address variable for ATmegas with <= 64K flash + */ +#if defined(RAMPZ) + typedef uint32_t address_t; +#else + typedef uint16_t address_t; +#endif + +/* + * function prototypes + */ +static void sendchar(char c); +static unsigned char recchar(void); + +/* + * since this bootloader is not linked against the avr-gcc crt1 functions, + * to reduce the code size, we need to provide our own initialization + */ +void __jumpMain (void) __attribute__ ((naked)) __attribute__ ((section (".init9"))); +#include <avr/sfr_defs.h> + +//#define SPH_REG 0x3E +//#define SPL_REG 0x3D + +//***************************************************************************** +void __jumpMain(void) +{ +//* July 17, 2010 <MLS> Added stack pointer initialzation +//* the first line did not do the job on the ATmega128 + + asm volatile ( ".set __stack, %0" :: "i" (RAMEND) ); + +// ldi r16,high(RAMEND) +// out SPH,r16 ; Set stack pointer to top of RAM + +// asm volatile ( "ldi 16, 0x10"); + asm volatile ( "ldi 16, %0" :: "i" (RAMEND >> 8) ); +// asm volatile ( "out 0x3E,16"); +// asm volatile ( "out %0,16" :: "i" (SPH_REG) ); + asm volatile ( "out %0,16" :: "i" (AVR_STACK_POINTER_HI_ADDR) ); + +// asm volatile ( "ldi 16, 0x00"); + asm volatile ( "ldi 16, %0" :: "i" (RAMEND & 0x0ff) ); +// asm volatile ( "out 0x3d,16"); +// asm volatile ( "out %0,16" :: "i" (SPL_REG) ); + asm volatile ( "out %0,16" :: "i" (AVR_STACK_POINTER_LO_ADDR) ); + + + + asm volatile ( "clr __zero_reg__" ); // GCC depends on register r1 set to 0 + asm volatile ( "out %0, __zero_reg__" :: "I" (_SFR_IO_ADDR(SREG)) ); // set SREG to 0 +// asm volatile ( "rjmp main"); // jump to main() + asm volatile ( "jmp main"); // jump to main() +} + + +//***************************************************************************** +void delay_ms(unsigned int timedelay) +{ + unsigned int i; + for (i=0;i<timedelay;i++) + { + _delay_ms(0.5); + } +} + + +//***************************************************************************** +/* + * send single byte to USART, wait until transmission is completed + */ +static void sendchar(char c) +{ + UART_DATA_REG = c; // prepare transmission + while (!(UART_STATUS_REG & (1 << UART_TRANSMIT_COMPLETE))); // wait until byte sent + UART_STATUS_REG |= (1 << UART_TRANSMIT_COMPLETE); // delete TXCflag +} + + +//************************************************************************ +static int Serial_Available(void) +{ + return(UART_STATUS_REG & (1 << UART_RECEIVE_COMPLETE)); // wait for data +} + + +//***************************************************************************** +/* + * Read single byte from USART, block if no data available + */ +static unsigned char recchar(void) +{ + while (!(UART_STATUS_REG & (1 << UART_RECEIVE_COMPLETE))) + { + // wait for data + } + return UART_DATA_REG; +} + +#define MAX_TIME_COUNT (F_CPU >> 1) +//***************************************************************************** +static unsigned char recchar_timeout(void) +{ +uint32_t count = 0; + + while (!(UART_STATUS_REG & (1 << UART_RECEIVE_COMPLETE))) + { + // wait for data + count++; + if (count > MAX_TIME_COUNT) + { + unsigned int data; + #if (FLASHEND > 0x0FFFF) + data = pgm_read_word_far(0); //* get the first word of the user program + #else + data = pgm_read_word_near(0); //* get the first word of the user program + #endif + if (data != 0xffff) //* make sure its valid before jumping to it. + { + asm volatile( + "clr r30 \n\t" + "clr r31 \n\t" + "ijmp \n\t" + ); + } + count = 0; + } + } + return UART_DATA_REG; +} + + + +//***************************************************************************** +int main(void) +{ + address_t address = 0; + address_t eraseAddress = 0; + unsigned char msgParseState; + unsigned int ii = 0; + unsigned char checksum = 0; + unsigned char seqNum = 0; + unsigned int msgLength = 0; + unsigned char msgBuffer[285]; + unsigned char c, *p; + unsigned char isLeave = 0; + + unsigned long boot_timeout; + unsigned long boot_timer; + unsigned int boot_state; +#ifdef ENABLE_MONITOR + unsigned int exPointCntr = 0; +#endif + + + boot_timer = 0; + boot_state = 0; + +#ifdef BLINK_LED_WHILE_WAITING + boot_timeout = 20000; //* should be about 1 second +// boot_timeout = 170000; +#else + boot_timeout = 3500000; // 7 seconds , approx 2us per step when optimize "s" +#endif + /* + * Branch to bootloader or application code ? + */ + +#ifndef REMOVE_BOOTLOADER_LED + /* PROG_PIN pulled low, indicate with LED that bootloader is active */ + PROGLED_DDR |= (1<<PROGLED_PIN); +// PROGLED_PORT &= ~(1<<PROGLED_PIN); // active low LED ON + PROGLED_PORT |= (1<<PROGLED_PIN); // active high LED ON + +#ifdef _DEBUG_WITH_LEDS_ + for (ii=0; ii<3; ii++) + { + PROGLED_PORT &= ~(1<<PROGLED_PIN); // turn LED off + delay_ms(100); + PROGLED_PORT |= (1<<PROGLED_PIN); // turn LED on + delay_ms(100); + } +#endif + +#endif + /* + * Init UART + * set baudrate and enable USART receiver and transmiter without interrupts + */ +#if UART_BAUDRATE_DOUBLE_SPEED + UART_STATUS_REG |= (1 <<UART_DOUBLE_SPEED); +#endif + UART_BAUD_RATE_LOW = UART_BAUD_SELECT(BAUDRATE,F_CPU); + UART_CONTROL_REG = (1 << UART_ENABLE_RECEIVER) | (1 << UART_ENABLE_TRANSMITTER); + + asm volatile ("nop"); // wait until port has changed + +#ifdef _DEBUG_SERIAL_ +// delay_ms(500); + + sendchar('s'); + sendchar('t'); + sendchar('k'); +// sendchar('5'); +// sendchar('0'); +// sendchar('0'); + sendchar('v'); + sendchar('2'); + sendchar(0x0d); + sendchar(0x0a); + + delay_ms(100); +#endif + + while (boot_state==0) + { + while ((!(Serial_Available())) && (boot_state == 0)) // wait for data + { + _delay_ms(0.001); + boot_timer++; + if (boot_timer > boot_timeout) + { + boot_state = 1; // (after ++ -> boot_state=2 bootloader timeout, jump to main 0x00000 ) + } + #ifdef BLINK_LED_WHILE_WAITING + if ((boot_timer % 7000) == 0) + { + //* toggle the LED + PROGLED_PORT ^= (1<<PROGLED_PIN); // turn LED ON + } + #endif + } + boot_state++; // ( if boot_state=1 bootloader received byte from UART, enter bootloader mode) + } + + + if (boot_state==1) + { + //* main loop + while (!isLeave) + { + /* + * Collect received bytes to a complete message + */ + msgParseState = ST_START; + while ( msgParseState != ST_PROCESS ) + { + if (boot_state==1) + { + boot_state = 0; + c = UART_DATA_REG; + } + else + { + // c = recchar(); + c = recchar_timeout(); + } + + #ifdef ENABLE_MONITOR + if (c == '!') + { + exPointCntr++; + if (exPointCntr == 3) + { + RunMonitor(); + exPointCntr = 0; // reset back to zero so we dont get in an endless loop + isLeave = 1; + msgParseState = 99; //* we dont want it do anything + break; + } + } + else + { + exPointCntr = 0; + } + #endif + + switch (msgParseState) + { + case ST_START: + if ( c == MESSAGE_START ) + { + msgParseState = ST_GET_SEQ_NUM; + checksum = MESSAGE_START^0; + } + break; + + case ST_GET_SEQ_NUM: + if ( (c == 1) || (c == seqNum) ) + { + seqNum = c; + msgParseState = ST_MSG_SIZE_1; + checksum ^= c; + } + else + { + msgParseState = ST_START; + } + break; + + case ST_MSG_SIZE_1: + msgLength = c<<8; + msgParseState = ST_MSG_SIZE_2; + checksum ^= c; + break; + + case ST_MSG_SIZE_2: + msgLength |= c; + msgParseState = ST_GET_TOKEN; + checksum ^= c; + break; + + case ST_GET_TOKEN: + if ( c == TOKEN ) + { + msgParseState = ST_GET_DATA; + checksum ^= c; + ii = 0; + } + else + { + msgParseState = ST_START; + } + break; + + case ST_GET_DATA: + msgBuffer[ii++] = c; + checksum ^= c; + if (ii == msgLength ) + { + msgParseState = ST_GET_CHECK; + } + break; + + case ST_GET_CHECK: + if ( c == checksum ) + { + msgParseState = ST_PROCESS; + } + else + { + msgParseState = ST_START; + } + break; + } // switch + } // while(msgParseState) + + /* + * Now process the STK500 commands, see Atmel Appnote AVR068 + */ + + switch (msgBuffer[0]) + { + #ifndef REMOVE_CMD_SPI_MULTI + case CMD_SPI_MULTI: + { + unsigned char answerByte; + unsigned char flag=0; + + if ( msgBuffer[4]== 0x30 ) + { + unsigned char signatureIndex = msgBuffer[6]; + + if ( signatureIndex == 0 ) + answerByte = (SIGNATURE_BYTES >>16) & 0x000000FF; + else if ( signatureIndex == 1 ) + answerByte = (SIGNATURE_BYTES >> 8) & 0x000000FF; + else + answerByte = SIGNATURE_BYTES & 0x000000FF; + } + else if ( msgBuffer[4] & 0x50 ) + { + answerByte = 0; //read fuse/lock bits not implemented, return dummy value + } + else + { + answerByte = 0; // for all others command are not implemented, return dummy value for AVRDUDE happy <Worapoht> + // flag = 1; // Remark this line for AVRDUDE <Worapoht> + } + if ( !flag ) + { + msgLength = 7; + msgBuffer[1] = STATUS_CMD_OK; + msgBuffer[2] = 0; + msgBuffer[3] = msgBuffer[4]; + msgBuffer[4] = 0; + msgBuffer[5] = answerByte; + msgBuffer[6] = STATUS_CMD_OK; + } + } + break; + #endif + case CMD_SIGN_ON: + msgLength = 11; + msgBuffer[1] = STATUS_CMD_OK; + msgBuffer[2] = 8; + msgBuffer[3] = 'A'; + msgBuffer[4] = 'V'; + msgBuffer[5] = 'R'; + msgBuffer[6] = 'I'; + msgBuffer[7] = 'S'; + msgBuffer[8] = 'P'; + msgBuffer[9] = '_'; + msgBuffer[10] = '2'; + break; + + case CMD_GET_PARAMETER: + { + unsigned char value; + + switch(msgBuffer[1]) + { + case PARAM_BUILD_NUMBER_LOW: + value = CONFIG_PARAM_BUILD_NUMBER_LOW; + break; + case PARAM_BUILD_NUMBER_HIGH: + value = CONFIG_PARAM_BUILD_NUMBER_HIGH; + break; + case PARAM_HW_VER: + value = CONFIG_PARAM_HW_VER; + break; + case PARAM_SW_MAJOR: + value = CONFIG_PARAM_SW_MAJOR; + break; + case PARAM_SW_MINOR: + value = CONFIG_PARAM_SW_MINOR; + break; + default: + value = 0; + break; + } + msgLength = 3; + msgBuffer[1] = STATUS_CMD_OK; + msgBuffer[2] = value; + } + break; + + case CMD_LEAVE_PROGMODE_ISP: + isLeave = 1; + //* fall thru + + case CMD_SET_PARAMETER: + case CMD_ENTER_PROGMODE_ISP: + msgLength = 2; + msgBuffer[1] = STATUS_CMD_OK; + break; + + case CMD_READ_SIGNATURE_ISP: + { + unsigned char signatureIndex = msgBuffer[4]; + unsigned char signature; + + if ( signatureIndex == 0 ) + signature = (SIGNATURE_BYTES >>16) & 0x000000FF; + else if ( signatureIndex == 1 ) + signature = (SIGNATURE_BYTES >> 8) & 0x000000FF; + else + signature = SIGNATURE_BYTES & 0x000000FF; + + msgLength = 4; + msgBuffer[1] = STATUS_CMD_OK; + msgBuffer[2] = signature; + msgBuffer[3] = STATUS_CMD_OK; + } + break; + + case CMD_READ_LOCK_ISP: + msgLength = 4; + msgBuffer[1] = STATUS_CMD_OK; + msgBuffer[2] = boot_lock_fuse_bits_get( GET_LOCK_BITS ); + msgBuffer[3] = STATUS_CMD_OK; + break; + + case CMD_READ_FUSE_ISP: + { + unsigned char fuseBits; + + if ( msgBuffer[2] == 0x50 ) + { + if ( msgBuffer[3] == 0x08 ) + fuseBits = boot_lock_fuse_bits_get( GET_EXTENDED_FUSE_BITS ); + else + fuseBits = boot_lock_fuse_bits_get( GET_LOW_FUSE_BITS ); + } + else + { + fuseBits = boot_lock_fuse_bits_get( GET_HIGH_FUSE_BITS ); + } + msgLength = 4; + msgBuffer[1] = STATUS_CMD_OK; + msgBuffer[2] = fuseBits; + msgBuffer[3] = STATUS_CMD_OK; + } + break; + + #ifndef REMOVE_PROGRAM_LOCK_BIT_SUPPORT + case CMD_PROGRAM_LOCK_ISP: + { + unsigned char lockBits = msgBuffer[4]; + + lockBits = (~lockBits) & 0x3C; // mask BLBxx bits + boot_lock_bits_set(lockBits); // and program it + boot_spm_busy_wait(); + + msgLength = 3; + msgBuffer[1] = STATUS_CMD_OK; + msgBuffer[2] = STATUS_CMD_OK; + } + break; + #endif + case CMD_CHIP_ERASE_ISP: + eraseAddress = 0; + msgLength = 2; + msgBuffer[1] = STATUS_CMD_OK; + break; + + case CMD_LOAD_ADDRESS: + #if defined(RAMPZ) + address = ( ((address_t)(msgBuffer[1])<<24)|((address_t)(msgBuffer[2])<<16)|((address_t)(msgBuffer[3])<<8)|(msgBuffer[4]) )<<1; + #else + address = ( ((msgBuffer[3])<<8)|(msgBuffer[4]) )<<1; //convert word to byte address + #endif + msgLength = 2; + msgBuffer[1] = STATUS_CMD_OK; + break; + + case CMD_PROGRAM_FLASH_ISP: + case CMD_PROGRAM_EEPROM_ISP: + { + unsigned int size = ((msgBuffer[1])<<8) | msgBuffer[2]; + unsigned char *p = msgBuffer+10; + unsigned int data; + unsigned char highByte, lowByte; + address_t tempaddress = address; + + + if ( msgBuffer[0] == CMD_PROGRAM_FLASH_ISP ) + { + // erase only main section (bootloader protection) + if (eraseAddress < APP_END ) + { + boot_page_erase(eraseAddress); // Perform page erase + boot_spm_busy_wait(); // Wait until the memory is erased. + eraseAddress += SPM_PAGESIZE; // point to next page to be erase + } + + /* Write FLASH */ + do { + lowByte = *p++; + highByte = *p++; + + data = (highByte << 8) | lowByte; + boot_page_fill(address,data); + + address = address + 2; // Select next word in memory + size -= 2; // Reduce number of bytes to write by two + } while (size); // Loop until all bytes written + + boot_page_write(tempaddress); + boot_spm_busy_wait(); + boot_rww_enable(); // Re-enable the RWW section + } + else + { + #if (!defined(__AVR_ATmega1280__) && !defined(__AVR_ATmega2560__) && !defined(__AVR_ATmega2561__)) + /* write EEPROM */ + do { + EEARL = address; // Setup EEPROM address + EEARH = (address >> 8); + address++; // Select next EEPROM byte + + EEDR = *p++; // get byte from buffer + EECR |= (1<<EEMWE); // Write data into EEPROM + EECR |= (1<<EEWE); + + while (EECR & (1<<EEWE)); // Wait for write operation to finish + size--; // Decrease number of bytes to write + } while (size); // Loop until all bytes written + #endif + } + msgLength = 2; + msgBuffer[1] = STATUS_CMD_OK; + } + break; + + case CMD_READ_FLASH_ISP: + case CMD_READ_EEPROM_ISP: + { + unsigned int size = ((msgBuffer[1])<<8) | msgBuffer[2]; + unsigned char *p = msgBuffer+1; + msgLength = size+3; + + *p++ = STATUS_CMD_OK; + if (msgBuffer[0] == CMD_READ_FLASH_ISP ) + { + unsigned int data; + + // Read FLASH + do { + #if defined(RAMPZ) + data = pgm_read_word_far(address); + #else + data = pgm_read_word_near(address); + #endif + *p++ = (unsigned char)data; //LSB + *p++ = (unsigned char)(data >> 8); //MSB + address += 2; // Select next word in memory + size -= 2; + }while (size); + } + else + { + /* Read EEPROM */ + do { + EEARL = address; // Setup EEPROM address + EEARH = ((address >> 8)); + address++; // Select next EEPROM byte + EECR |= (1<<EERE); // Read EEPROM + *p++ = EEDR; // Send EEPROM data + size--; + } while (size); + } + *p++ = STATUS_CMD_OK; + } + break; + + default: + msgLength = 2; + msgBuffer[1] = STATUS_CMD_FAILED; + break; + } + + /* + * Now send answer message back + */ + sendchar(MESSAGE_START); + checksum = MESSAGE_START^0; + + sendchar(seqNum); + checksum ^= seqNum; + + c = ((msgLength>>8)&0xFF); + sendchar(c); + checksum ^= c; + + c = msgLength&0x00FF; + sendchar(c); + checksum ^= c; + + sendchar(TOKEN); + checksum ^= TOKEN; + + p = msgBuffer; + while ( msgLength ) + { + c = *p++; + sendchar(c); + checksum ^=c; + msgLength--; + } + sendchar(checksum); + seqNum++; + + #ifndef REMOVE_BOOTLOADER_LED + //* <MLS> toggle the LED + PROGLED_PORT ^= (1<<PROGLED_PIN); // active high LED ON + #endif + + } + } + +#ifdef _DEBUG_WITH_LEDS_ + //* this is for debugging it can be removed + for (ii=0; ii<10; ii++) + { + PROGLED_PORT &= ~(1<<PROGLED_PIN); // turn LED off + delay_ms(200); + PROGLED_PORT |= (1<<PROGLED_PIN); // turn LED on + delay_ms(200); + } + PROGLED_PORT &= ~(1<<PROGLED_PIN); // turn LED off +#endif + +#ifdef _DEBUG_SERIAL_ + sendchar('j'); +// sendchar('u'); +// sendchar('m'); +// sendchar('p'); +// sendchar(' '); +// sendchar('u'); +// sendchar('s'); +// sendchar('r'); + sendchar(0x0d); + sendchar(0x0a); + + delay_ms(100); +#endif + + +#ifndef REMOVE_BOOTLOADER_LED + PROGLED_DDR &= ~(1<<PROGLED_PIN); // set to default + PROGLED_PORT &= ~(1<<PROGLED_PIN); // active low LED OFF +// PROGLED_PORT |= (1<<PROGLED_PIN); // active high LED OFf + delay_ms(100); // delay after exit +#endif + + + asm volatile ("nop"); // wait until port has changed + + /* + * Now leave bootloader + */ + + UART_STATUS_REG &= 0xfd; + boot_rww_enable(); // enable application section + + + asm volatile( + "clr r30 \n\t" + "clr r31 \n\t" + "ijmp \n\t" + ); +// asm volatile ( "push r1" "\n\t" // Jump to Reset vector in Application Section +// "push r1" "\n\t" +// "ret" "\n\t" +// ::); + + /* + * Never return to stop GCC to generate exit return code + * Actually we will never reach this point, but the compiler doesn't + * understand this + */ + for(;;); +} + +/* +base address = f800 + +avrdude: Device signature = 0x1e9703 +avrdude: safemode: lfuse reads as FF +avrdude: safemode: hfuse reads as DA +avrdude: safemode: efuse reads as F5 +avrdude> + + +base address = f000 +avrdude: Device signature = 0x1e9703 +avrdude: safemode: lfuse reads as FF +avrdude: safemode: hfuse reads as D8 +avrdude: safemode: efuse reads as F5 +avrdude> +*/ + +//************************************************************************ +#ifdef ENABLE_MONITOR +#include <math.h> + +unsigned long gRamIndex; +unsigned long gFlashIndex; +unsigned long gEepromIndex; + + +#define true 1 +#define false 0 + +#if defined(__AVR_ATmega128__) + #define kCPU_NAME "ATmega128" +#elif defined(__AVR_ATmega1280__) + #define kCPU_NAME "ATmega1280" +#elif defined(__AVR_ATmega1281__) + #define kCPU_NAME "ATmega1281" +#elif defined(__AVR_ATmega2560__) + #define kCPU_NAME "ATmega2560" +#elif defined(__AVR_ATmega2561__) + #define kCPU_NAME "ATmega2561" +#endif + +#ifdef _VECTORS_SIZE + #define kInterruptVectorCount (_VECTORS_SIZE / 4) +#else + #define kInterruptVectorCount 23 +#endif + + +void PrintDecInt(int theNumber, int digitCnt); + +#ifdef kCPU_NAME + prog_char gTextMsg_CPU_Name[] PROGMEM = kCPU_NAME; +#else + prog_char gTextMsg_CPU_Name[] PROGMEM = "UNKNOWN"; +#endif + + prog_char gTextMsg_Explorer[] PROGMEM = "Arduino explorer stk500V2 by MLS"; + prog_char gTextMsg_Prompt[] PROGMEM = "Bootloader>"; + prog_char gTextMsg_HUH[] PROGMEM = "Huh?"; + prog_char gTextMsg_COMPILED_ON[] PROGMEM = "Compiled on = "; + prog_char gTextMsg_CPU_Type[] PROGMEM = "CPU Type = "; + prog_char gTextMsg_AVR_ARCH[] PROGMEM = "__AVR_ARCH__ = "; + prog_char gTextMsg_AVR_LIBC[] PROGMEM = "AVR LibC Ver = "; + prog_char gTextMsg_GCC_VERSION[] PROGMEM = "GCC Version = "; + prog_char gTextMsg_CPU_SIGNATURE[] PROGMEM = "CPU signature= "; + prog_char gTextMsg_FUSE_BYTE_LOW[] PROGMEM = "Low fuse = "; + prog_char gTextMsg_FUSE_BYTE_HIGH[] PROGMEM = "High fuse = "; + prog_char gTextMsg_FUSE_BYTE_EXT[] PROGMEM = "Ext fuse = "; + prog_char gTextMsg_FUSE_BYTE_LOCK[] PROGMEM = "Lock fuse = "; + prog_char gTextMsg_GCC_DATE_STR[] PROGMEM = __DATE__; + prog_char gTextMsg_AVR_LIBC_VER_STR[] PROGMEM = __AVR_LIBC_VERSION_STRING__; + prog_char gTextMsg_GCC_VERSION_STR[] PROGMEM = __VERSION__; + prog_char gTextMsg_VECTOR_HEADER[] PROGMEM = "V# ADDR op code instruction addr Interrupt"; + prog_char gTextMsg_noVector[] PROGMEM = "no vector"; + prog_char gTextMsg_rjmp[] PROGMEM = "rjmp "; + prog_char gTextMsg_jmp[] PROGMEM = "jmp "; + prog_char gTextMsg_WHAT_PORT[] PROGMEM = "What port:"; + prog_char gTextMsg_PortNotSupported[] PROGMEM = "Port not supported"; + prog_char gTextMsg_MustBeLetter[] PROGMEM = "Must be a letter"; + prog_char gTextMsg_SPACE[] PROGMEM = " "; + prog_char gTextMsg_WriteToEEprom[] PROGMEM = "Writting EE"; + prog_char gTextMsg_ReadingEEprom[] PROGMEM = "Reading EE"; + prog_char gTextMsg_EEPROMerrorCnt[] PROGMEM = "eeprom error count="; + prog_char gTextMsg_PORT[] PROGMEM = "PORT"; + + +//************************************************************************ +//* Help messages + prog_char gTextMsg_HELP_MSG_0[] PROGMEM = "0=Zero address ctrs"; + prog_char gTextMsg_HELP_MSG_QM[] PROGMEM = "?=CPU stats"; + prog_char gTextMsg_HELP_MSG_AT[] PROGMEM = "@=EEPROM test"; + prog_char gTextMsg_HELP_MSG_B[] PROGMEM = "B=Blink LED"; + prog_char gTextMsg_HELP_MSG_E[] PROGMEM = "E=Dump EEPROM"; + prog_char gTextMsg_HELP_MSG_F[] PROGMEM = "F=Dump FLASH"; + prog_char gTextMsg_HELP_MSG_H[] PROGMEM = "H=Help"; + prog_char gTextMsg_HELP_MSG_L[] PROGMEM = "L=List I/O Ports"; + prog_char gTextMsg_HELP_MSG_Q[] PROGMEM = "Q=Quit & jump to user pgm"; + prog_char gTextMsg_HELP_MSG_R[] PROGMEM = "R=Dump RAM"; + prog_char gTextMsg_HELP_MSG_V[] PROGMEM = "V=show interrupt Vectors"; + prog_char gTextMsg_HELP_MSG_Y[] PROGMEM = "Y=Port blink"; + + prog_char gTextMsg_END[] PROGMEM = "*"; + + +//************************************************************************ +void PrintFromPROGMEM(void *dataPtr, unsigned char offset) +{ +uint8_t ii; +char theChar; + + ii = offset; + theChar = 1; + + while (theChar != 0) + { + theChar = pgm_read_byte_far((uint32_t)dataPtr + ii); + if (theChar != 0) + { + sendchar(theChar); + } + ii++; + } +} + +//************************************************************************ +void PrintNewLine(void) +{ + sendchar(0x0d); + sendchar(0x0a); +} + + +//************************************************************************ +void PrintFromPROGMEMln(void *dataPtr, unsigned char offset) +{ + PrintFromPROGMEM(dataPtr, offset); + + PrintNewLine(); +} + + +//************************************************************************ +void PrintString(char *textString) +{ +char theChar; +int ii; + + theChar = 1; + ii = 0; + while (theChar != 0) + { + theChar = textString[ii]; + if (theChar != 0) + { + sendchar(theChar); + } + ii++; + } +} + +//************************************************************************ +void PrintHexByte(unsigned char theByte) +{ +char theChar; + + theChar = 0x30 + ((theByte >> 4) & 0x0f); + if (theChar > 0x39) + { + theChar += 7; + } + sendchar(theChar ); + + theChar = 0x30 + (theByte & 0x0f); + if (theChar > 0x39) + { + theChar += 7; + } + sendchar(theChar ); +} + +//************************************************************************ +void PrintDecInt(int theNumber, int digitCnt) +{ +int theChar; +int myNumber; + + myNumber = theNumber; + + if ((myNumber > 100) || (digitCnt >= 3)) + { + theChar = 0x30 + myNumber / 100; + sendchar(theChar ); + } + + if ((myNumber > 10) || (digitCnt >= 2)) + { + theChar = 0x30 + ((myNumber % 100) / 10 ); + sendchar(theChar ); + } + theChar = 0x30 + (myNumber % 10); + sendchar(theChar ); +} + + + + +//************************************************************************ +static void PrintCPUstats(void) +{ +unsigned char fuseByte; + + PrintFromPROGMEMln(gTextMsg_Explorer, 0); + + PrintFromPROGMEM(gTextMsg_COMPILED_ON, 0); + PrintFromPROGMEMln(gTextMsg_GCC_DATE_STR, 0); + + PrintFromPROGMEM(gTextMsg_CPU_Type, 0); + PrintFromPROGMEMln(gTextMsg_CPU_Name, 0); + + PrintFromPROGMEM(gTextMsg_AVR_ARCH, 0); + PrintDecInt(__AVR_ARCH__, 1); + PrintNewLine(); + + PrintFromPROGMEM(gTextMsg_GCC_VERSION, 0); + PrintFromPROGMEMln(gTextMsg_GCC_VERSION_STR, 0); + + //* these can be found in avr/version.h + PrintFromPROGMEM(gTextMsg_AVR_LIBC, 0); + PrintFromPROGMEMln(gTextMsg_AVR_LIBC_VER_STR, 0); + +#if defined(SIGNATURE_0) + PrintFromPROGMEM(gTextMsg_CPU_SIGNATURE, 0); + //* these can be found in avr/iomxxx.h + PrintHexByte(SIGNATURE_0); + PrintHexByte(SIGNATURE_1); + PrintHexByte(SIGNATURE_2); + PrintNewLine(); +#endif + + +#if defined(GET_LOW_FUSE_BITS) + //* fuse settings + PrintFromPROGMEM(gTextMsg_FUSE_BYTE_LOW, 0); + fuseByte = boot_lock_fuse_bits_get(GET_LOW_FUSE_BITS); + PrintHexByte(fuseByte); + PrintNewLine(); + + PrintFromPROGMEM(gTextMsg_FUSE_BYTE_HIGH, 0); + fuseByte = boot_lock_fuse_bits_get(GET_HIGH_FUSE_BITS); + PrintHexByte(fuseByte); + PrintNewLine(); + + PrintFromPROGMEM(gTextMsg_FUSE_BYTE_EXT, 0); + fuseByte = boot_lock_fuse_bits_get(GET_EXTENDED_FUSE_BITS); + PrintHexByte(fuseByte); + PrintNewLine(); + + PrintFromPROGMEM(gTextMsg_FUSE_BYTE_LOCK, 0); + fuseByte = boot_lock_fuse_bits_get(GET_LOCK_BITS); + PrintHexByte(fuseByte); + PrintNewLine(); + +#endif + +} + +#ifndef sbi + #define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit)) +#endif + +//************************************************************************ +int analogRead(uint8_t 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 & 0x07); + ADMUX = (1 << 6) | (pin & 0x07); + +#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) + // 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); + + // start the conversion + sbi(ADCSRA, ADSC); + + // ADSC is cleared when the conversion finishes + while (bit_is_set(ADCSRA, ADSC)); + + // we have to read ADCL first; doing so locks both ADCL + // and ADCH until ADCH is read. reading ADCL second would + // cause the results of each conversion to be discarded, + // as ADCL and ADCH would be locked when it completed. + low = ADCL; + high = ADCH; + + // combine the two bytes + return (high << 8) | low; +} + +//************************************************************************ +static void BlinkLED(void) +{ + PROGLED_DDR |= (1<<PROGLED_PIN); + PROGLED_PORT |= (1<<PROGLED_PIN); // active high LED ON + + while (!Serial_Available()) + { + PROGLED_PORT &= ~(1<<PROGLED_PIN); // turn LED off + delay_ms(100); + PROGLED_PORT |= (1<<PROGLED_PIN); // turn LED on + delay_ms(100); + } + recchar(); // get the char out of the buffer +} + +enum +{ + kDUMP_FLASH = 0, + kDUMP_EEPROM, + kDUMP_RAM +}; + +//************************************************************************ +static void DumpHex(unsigned char dumpWhat, unsigned long startAddress, unsigned char numRows) +{ +unsigned long myAddressPointer; +uint8_t ii; +unsigned char theValue; +char asciiDump[18]; +unsigned char *ramPtr; + + + ramPtr = 0; + theValue = 0; + myAddressPointer = startAddress; + while (numRows > 0) + { + if (myAddressPointer > 0x10000) + { + PrintHexByte((myAddressPointer >> 16) & 0x00ff); + } + PrintHexByte((myAddressPointer >> 8) & 0x00ff); + PrintHexByte(myAddressPointer & 0x00ff); + sendchar(0x20); + sendchar('-'); + sendchar(0x20); + + asciiDump[0] = 0; + for (ii=0; ii<16; ii++) + { + switch(dumpWhat) + { + case kDUMP_FLASH: + theValue = pgm_read_byte_far(myAddressPointer); + break; + + case kDUMP_EEPROM: + theValue = eeprom_read_byte((void *)myAddressPointer); + break; + + case kDUMP_RAM: + theValue = ramPtr[myAddressPointer]; + break; + + } + PrintHexByte(theValue); + sendchar(0x20); + if ((theValue >= 0x20) && (theValue < 0x7f)) + { + asciiDump[ii % 16] = theValue; + } + else + { + asciiDump[ii % 16] = '.'; + } + + myAddressPointer++; + } + asciiDump[16] = 0; + PrintString(asciiDump); + PrintNewLine(); + + numRows--; + } +} + + + +//************************************************************************ +//* returns amount of extended memory +static void EEPROMtest(void) +{ +int ii; +char theChar; +char theEEPROMchar; +int errorCount; + + PrintFromPROGMEMln(gTextMsg_WriteToEEprom, 0); + PrintNewLine(); + ii = 0; + while (((theChar = pgm_read_byte_far(gTextMsg_Explorer + ii)) != '*') && (ii < 512)) + { + eeprom_write_byte((uint8_t *)ii, theChar); + if (theChar == 0) + { + PrintFromPROGMEM(gTextMsg_SPACE, 0); + } + else + { + sendchar(theChar); + } + ii++; + } + + //* no go back through and test + PrintNewLine(); + PrintNewLine(); + PrintFromPROGMEMln(gTextMsg_ReadingEEprom, 0); + PrintNewLine(); + errorCount = 0; + ii = 0; + while (((theChar = pgm_read_byte_far(gTextMsg_Explorer + ii)) != '*') && (ii < 512)) + { + theEEPROMchar = eeprom_read_byte((uint8_t *)ii); + if (theEEPROMchar == 0) + { + PrintFromPROGMEM(gTextMsg_SPACE, 0); + } + else + { + sendchar(theEEPROMchar); + } + if (theEEPROMchar != theChar) + { + errorCount++; + } + ii++; + } + PrintNewLine(); + PrintNewLine(); + PrintFromPROGMEM(gTextMsg_EEPROMerrorCnt, 0); + PrintDecInt(errorCount, 1); + PrintNewLine(); + PrintNewLine(); + + gEepromIndex = 0; //* set index back to zero for next eeprom dump + +} + + + +#if (FLASHEND > 0x08000) + #include "avrinterruptnames.h" + #ifndef _INTERRUPT_NAMES_DEFINED_ + #warning Interrupt vectors not defined + #endif +#endif + +//************************************************************************ +static void VectorDisplay(void) +{ +unsigned long byte1; +unsigned long byte2; +unsigned long byte3; +unsigned long byte4; +unsigned long word1; +unsigned long word2; +int vectorIndex; +unsigned long myMemoryPtr; +unsigned long wordMemoryAddress; +unsigned long realitiveAddr; +unsigned long myFullAddress; +unsigned long absoluteAddr; +#if defined(_INTERRUPT_NAMES_DEFINED_) + long stringPointer; +#endif + + myMemoryPtr = 0; + vectorIndex = 0; + PrintFromPROGMEMln(gTextMsg_CPU_Name, 0); + PrintFromPROGMEMln(gTextMsg_VECTOR_HEADER, 0); + // V# ADDR op code + // 1 - 0000 = C3 BB 00 00 rjmp 03BB >000776 RESET + while (vectorIndex < kInterruptVectorCount) + { + wordMemoryAddress = myMemoryPtr / 2; + // 01 - 0000 = 12 34 + PrintDecInt(vectorIndex + 1, 2); + sendchar(0x20); + sendchar('-'); + sendchar(0x20); + PrintHexByte((wordMemoryAddress >> 8) & 0x00ff); + PrintHexByte((wordMemoryAddress) & 0x00ff); + sendchar(0x20); + sendchar('='); + sendchar(0x20); + + + //* the AVR is LITTLE ENDIAN, swap the byte order + byte1 = pgm_read_byte_far(myMemoryPtr++); + byte2 = pgm_read_byte_far(myMemoryPtr++); + word1 = (byte2 << 8) + byte1; + + byte3 = pgm_read_byte_far(myMemoryPtr++); + byte4 = pgm_read_byte_far(myMemoryPtr++); + word2 = (byte4 << 8) + byte3; + + + PrintHexByte(byte2); + sendchar(0x20); + PrintHexByte(byte1); + sendchar(0x20); + PrintHexByte(byte4); + sendchar(0x20); + PrintHexByte(byte3); + sendchar(0x20); + + if (word1 == 0xffff) + { + PrintFromPROGMEM(gTextMsg_noVector, 0); + } + else if ((word1 & 0xc000) == 0xc000) + { + //* rjmp instruction + realitiveAddr = word1 & 0x3FFF; + absoluteAddr = wordMemoryAddress + realitiveAddr; //* add the offset to the current address + absoluteAddr = absoluteAddr << 1; //* multiply by 2 for byte address + + PrintFromPROGMEM(gTextMsg_rjmp, 0); + PrintHexByte((realitiveAddr >> 8) & 0x00ff); + PrintHexByte((realitiveAddr) & 0x00ff); + sendchar(0x20); + sendchar('>'); + PrintHexByte((absoluteAddr >> 16) & 0x00ff); + PrintHexByte((absoluteAddr >> 8) & 0x00ff); + PrintHexByte((absoluteAddr) & 0x00ff); + + } + else if ((word1 & 0xfE0E) == 0x940c) + { + //* jmp instruction, this is REALLY complicated, refer to the instruction manual (JMP) + myFullAddress = ((byte1 & 0x01) << 16) + + ((byte1 & 0xf0) << 17) + + ((byte2 & 0x01) << 21) + + word2; + + absoluteAddr = myFullAddress << 1; + + PrintFromPROGMEM(gTextMsg_jmp, 0); + PrintHexByte((myFullAddress >> 16) & 0x00ff); + PrintHexByte((myFullAddress >> 8) & 0x00ff); + PrintHexByte((myFullAddress) & 0x00ff); + sendchar(0x20); + sendchar('>'); + PrintHexByte((absoluteAddr >> 16) & 0x00ff); + PrintHexByte((absoluteAddr >> 8) & 0x00ff); + PrintHexByte((absoluteAddr) & 0x00ff); + } + + #if defined(_INTERRUPT_NAMES_DEFINED_) + sendchar(0x20); + stringPointer = pgm_read_word_far(&(gInterruptNameTable[vectorIndex])); + PrintFromPROGMEM((char *)stringPointer, 0); + #endif + PrintNewLine(); + + vectorIndex++; + } +} + +//************************************************************************ +static void PrintAvailablePort(char thePortLetter) +{ + PrintFromPROGMEM(gTextMsg_PORT, 0); + sendchar(thePortLetter); + PrintNewLine(); +} + +//************************************************************************ +static void ListAvailablePorts(void) +{ + +#ifdef DDRA + PrintAvailablePort('A'); +#endif + +#ifdef DDRB + PrintAvailablePort('B'); +#endif + +#ifdef DDRC + PrintAvailablePort('C'); +#endif + +#ifdef DDRD + PrintAvailablePort('D'); +#endif + +#ifdef DDRE + PrintAvailablePort('E'); +#endif + +#ifdef DDRF + PrintAvailablePort('F'); +#endif + +#ifdef DDRG + PrintAvailablePort('G'); +#endif + +#ifdef DDRH + PrintAvailablePort('H'); +#endif + +#ifdef DDRI + PrintAvailablePort('I'); +#endif + +#ifdef DDRJ + PrintAvailablePort('J'); +#endif + +#ifdef DDRK + PrintAvailablePort('K'); +#endif + +#ifdef DDRL + PrintAvailablePort('L'); +#endif + +} + +//************************************************************************ +static void AVR_PortOutput(void) +{ +char portLetter; +char getCharFlag; + + PrintFromPROGMEM(gTextMsg_WHAT_PORT, 0); + + portLetter = recchar(); + portLetter = portLetter & 0x5f; + sendchar(portLetter); + PrintNewLine(); + + if ((portLetter >= 'A') && (portLetter <= 'Z')) + { + getCharFlag = true; + switch(portLetter) + { + #ifdef DDRA + case 'A': + DDRA = 0xff; + while (!Serial_Available()) + { + PORTA ^= 0xff; + delay_ms(200); + } + PORTA = 0; + break; + #endif + + #ifdef DDRB + case 'B': + DDRB = 0xff; + while (!Serial_Available()) + { + PORTB ^= 0xff; + delay_ms(200); + } + PORTB = 0; + break; + #endif + + #ifdef DDRC + case 'C': + DDRC = 0xff; + while (!Serial_Available()) + { + PORTC ^= 0xff; + delay_ms(200); + } + PORTC = 0; + break; + #endif + + #ifdef DDRD + case 'D': + DDRD = 0xff; + while (!Serial_Available()) + { + PORTD ^= 0xff; + delay_ms(200); + } + PORTD = 0; + break; + #endif + + #ifdef DDRE + case 'E': + DDRE = 0xff; + while (!Serial_Available()) + { + PORTE ^= 0xff; + delay_ms(200); + } + PORTE = 0; + break; + #endif + + #ifdef DDRF + case 'F': + DDRF = 0xff; + while (!Serial_Available()) + { + PORTF ^= 0xff; + delay_ms(200); + } + PORTF = 0; + break; + #endif + + #ifdef DDRG + case 'G': + DDRG = 0xff; + while (!Serial_Available()) + { + PORTG ^= 0xff; + delay_ms(200); + } + PORTG = 0; + break; + #endif + + #ifdef DDRH + case 'H': + DDRH = 0xff; + while (!Serial_Available()) + { + PORTH ^= 0xff; + delay_ms(200); + } + PORTH = 0; + break; + #endif + + #ifdef DDRI + case 'I': + DDRI = 0xff; + while (!Serial_Available()) + { + PORTI ^= 0xff; + delay_ms(200); + } + PORTI = 0; + break; + #endif + + #ifdef DDRJ + case 'J': + DDRJ = 0xff; + while (!Serial_Available()) + { + PORTJ ^= 0xff; + delay_ms(200); + } + PORTJ = 0; + break; + #endif + + #ifdef DDRK + case 'K': + DDRK = 0xff; + while (!Serial_Available()) + { + PORTK ^= 0xff; + delay_ms(200); + } + PORTK = 0; + break; + #endif + + #ifdef DDRL + case 'L': + DDRL = 0xff; + while (!Serial_Available()) + { + PORTL ^= 0xff; + delay_ms(200); + } + PORTL = 0; + break; + #endif + + default: + PrintFromPROGMEMln(gTextMsg_PortNotSupported, 0); + getCharFlag = false; + break; + } + if (getCharFlag) + { + recchar(); + } + } + else + { + PrintFromPROGMEMln(gTextMsg_MustBeLetter, 0); + } +} + + +//******************************************************************* +static void PrintHelp(void) +{ + PrintFromPROGMEMln(gTextMsg_HELP_MSG_0, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_QM, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_AT, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_B, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_E, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_F, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_H, 0); + + PrintFromPROGMEMln(gTextMsg_HELP_MSG_L, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_Q, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_R, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_V, 0); + PrintFromPROGMEMln(gTextMsg_HELP_MSG_Y, 0); +} + +//************************************************************************ +static void RunMonitor(void) +{ +char keepGoing; +unsigned char theChar; +int ii, jj; + + for (ii=0; ii<5; ii++) + { + for (jj=0; jj<25; jj++) + { + sendchar('!'); + } + PrintNewLine(); + } + + gRamIndex = 0; + gFlashIndex = 0; + gEepromIndex = 0; + + PrintFromPROGMEMln(gTextMsg_Explorer, 0); + + keepGoing = 1; + while (keepGoing) + { + PrintFromPROGMEM(gTextMsg_Prompt, 0); + theChar = recchar(); + if (theChar >= 0x60) + { + theChar = theChar & 0x5F; + } + #if defined( _CEREBOTPLUS_BOARD_ ) + if (theChar == 0x5F) + { + + } + else + #endif + if (theChar >= 0x20) + { + sendchar(theChar); + sendchar(0x20); + } + + switch(theChar) + { + case '0': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_0, 2); + gFlashIndex = 0; + gRamIndex = 0; + gEepromIndex = 0; + break; + + case '?': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_QM, 2); + PrintCPUstats(); + break; + + case '@': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_AT, 2); + EEPROMtest(); + break; + + case 'B': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_B, 2); + BlinkLED(); + break; + + case 'E': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_E, 2); + DumpHex(kDUMP_EEPROM, gEepromIndex, 16); + gEepromIndex += 256; + if (gEepromIndex > E2END) + { + gEepromIndex = 0; + } + break; + + case 'F': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_F, 2); + DumpHex(kDUMP_FLASH, gFlashIndex, 16); + gFlashIndex += 256; + break; + + case 'H': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_H, 2); + PrintHelp(); + break; + + case 'L': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_L, 2); + ListAvailablePorts(); + break; + + case 'Q': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_Q, 2); + keepGoing = false; + break; + + case 'R': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_R, 2); + DumpHex(kDUMP_RAM, gRamIndex, 16); + gRamIndex += 256; + break; + + case 'V': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_V, 2); + VectorDisplay(); + break; + + case 'Y': + PrintFromPROGMEMln(gTextMsg_HELP_MSG_Y, 2); + AVR_PortOutput(); + break; + + #if defined( _CEREBOTPLUS_BOARD_ ) + case 0x5F: + //* do nothing + break; + #endif + + default: + PrintFromPROGMEMln(gTextMsg_HUH, 0); + break; + } + } +} + +#endif + |