#include <avr/io.h>#include <avr/interrupt.h>#include <avr/pgmspace.h>#include <avr/wdt.h>#include <avr/boot.h>#include "usbdrv.h"#include "bootloaderconfig.h"Go to the source code of this file.
Defines | |
| #define | USBBOOT_FUNC_WRITE_PAGE 2 |
| #define | USBBOOT_FUNC_LEAVE_BOOT 1 |
| #define | USBBOOT_FUNC_GET_PAGESIZE 3 |
| #define | STATE_IDLE 0 |
| #define | STATE_WRITE_PAGE 1 |
Functions | |
| uchar | usbFunctionSetup (uchar data[8]) |
| uchar | usbFunctionWrite (uchar *data, uchar len) |
| int | main (void) |
Variables | |
| void(* | jump_to_app )(void) |
| #define STATE_IDLE 0 |
| #define STATE_WRITE_PAGE 1 |
| #define USBBOOT_FUNC_GET_PAGESIZE 3 |
| #define USBBOOT_FUNC_LEAVE_BOOT 1 |
| #define USBBOOT_FUNC_WRITE_PAGE 2 |
| int main | ( | void | ) |
Definition at line 124 of file main.c.
00125 { 00126 /* initialize hardware */ 00127 BOOTLOADER_INIT; 00128 00129 /* jump to application if jumper is set */ 00130 if (!BOOTLOADER_CONDITION) { 00131 leaveBootloader(); 00132 } 00133 00134 GICR = (1 << IVCE); /* enable change of interrupt vectors */ 00135 GICR = (1 << IVSEL); /* move interrupts to boot flash section */ 00136 00137 usbInit(); 00138 sei(); 00139 for(;;){ /* main event loop */ 00140 usbPoll(); 00141 } 00142 return 0; 00143 }
| uchar usbFunctionSetup | ( | uchar | data[8] | ) |
Definition at line 55 of file main.c.
00056 { 00057 uchar len = 0; 00058 00059 if (data[1] == USBBOOT_FUNC_LEAVE_BOOT) { 00060 leaveBootloader(); 00061 } else if (data[1] == USBBOOT_FUNC_WRITE_PAGE) { 00062 00063 state = STATE_WRITE_PAGE; 00064 00065 page_address = (data[3] << 8) | data[2]; /* page address */ 00066 page_offset = 0; 00067 00068 eeprom_busy_wait(); 00069 cli(); 00070 boot_page_erase(page_address); /* erase page */ 00071 sei(); 00072 boot_spm_busy_wait(); /* wait until page is erased */ 00073 00074 len = 0xff; /* multiple out */ 00075 00076 } else if (data[1] == USBBOOT_FUNC_GET_PAGESIZE) { 00077 00078 replyBuffer[0] = SPM_PAGESIZE >> 8; 00079 replyBuffer[1] = SPM_PAGESIZE & 0xff; 00080 len = 2; 00081 00082 } 00083 00084 usbMsgPtr = replyBuffer; 00085 00086 return len; 00087 }
| uchar usbFunctionWrite | ( | uchar * | data, | |
| uchar | len | |||
| ) |
Definition at line 90 of file main.c.
00091 { 00092 00093 uchar i; 00094 00095 /* check if we are in correct state */ 00096 if (state != STATE_WRITE_PAGE) 00097 return 0xff; 00098 00099 for (i = 0; i < len; i+=2) { 00100 00101 cli(); 00102 boot_page_fill(page_address + page_offset, data[i] | (data[i + 1] << 8)); 00103 sei(); 00104 page_offset += 2; 00105 00106 /* check if we are at the end of a page */ 00107 if (page_offset >= SPM_PAGESIZE) { 00108 00109 /* write page */ 00110 cli(); 00111 boot_page_write(page_address); 00112 sei(); 00113 boot_spm_busy_wait(); 00114 00115 state = STATE_IDLE; 00116 return 1; 00117 } 00118 00119 } 00120 00121 return 0; 00122 }
| void(* jump_to_app)(void) |
Definition at line 45 of file main.c.
00047 { 00048 cli(); 00049 boot_rww_enable(); 00050 GICR = (1 << IVCE); /* enable change of interrupt vectors */ 00051 GICR = (0 << IVSEL); /* move interrupts to application flash section */ 00052 jump_to_app(); 00053 }
1.5.8