Erik - / Mbed 2 deprecated FOTA_K64F

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Dependencies:   mbed EthernetInterface mbed-rtos

Fork of Bootloader_K64F by Erik -

Bootloader/bootloader.h@10:fb5121bcc468, 2016-04-24 (annotated)

Committer:
Sissors
Date:
Sun Apr 24 12:46:37 2016 +0000
Revision:
10:fb5121bcc468
Parent:
9:56ed3a56ecc3 
I just committed already

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Sissors 8:00cefe0d59ed 1 #include "mbed.h"
Sissors 8:00cefe0d59ed 2 #include "EthernetInterface.h"
Sissors 8:00cefe0d59ed 3 #include "rtos.h"
Sissors 8:00cefe0d59ed 4
Sissors 7:4ab0430d06e3 5 #define START_ADDRESS 0x80000
Sissors 7:4ab0430d06e3 6 #define NUM_SECTORS 120
Sissors 7:4ab0430d06e3 7 #define SECTOR_SIZE 4096
Sissors 8:00cefe0d59ed 8 #define BUFFER_SIZE 1024
Sissors 7:4ab0430d06e3 9
Sissors 8:00cefe0d59ed 10
Sissors 9:56ed3a56ecc3 11 /*************************************************************/
Sissors 9:56ed3a56ecc3 12 // Bootloader functions
Sissors 9:56ed3a56ecc3 13 /*************************************************************/
Sissors 7:4ab0430d06e3 14 int *(*program_flash_boot)(int, char*, unsigned int) = (int *(*)(int, char*, unsigned int))0x795C9;
Sissors 7:4ab0430d06e3 15 int *(*erase_sector_boot)(int) = (int *(*)(int))0x79465;
Sissors 7:4ab0430d06e3 16 void *(*bootloader)(int) = (void *(*)(int))0x79121;
Sissors 7:4ab0430d06e3 17
Sissors 8:00cefe0d59ed 18
Sissors 9:56ed3a56ecc3 19 /*************************************************************/
Sissors 9:56ed3a56ecc3 20 // Retrieving binary from server
Sissors 9:56ed3a56ecc3 21 /*************************************************************/
Sissors 8:00cefe0d59ed 22 void write_flash(void)
Sissors 8:00cefe0d59ed 23 {
Sissors 8:00cefe0d59ed 24
Sissors 7:4ab0430d06e3 25 printf("Erasing flash!\r\n");
Sissors 7:4ab0430d06e3 26 for (int i = 0; i < NUM_SECTORS; i++)
Sissors 7:4ab0430d06e3 27 erase_sector_boot(START_ADDRESS + i * SECTOR_SIZE);
Sissors 8:00cefe0d59ed 28
Sissors 8:00cefe0d59ed 29 printf("Connecting ethernet\r\n");
Sissors 8:00cefe0d59ed 30 EthernetInterface eth;
Sissors 8:00cefe0d59ed 31 eth.init(); //Use DHCP
Sissors 8:00cefe0d59ed 32 eth.connect();
Sissors 8:00cefe0d59ed 33 printf("IP Address is %s\r\n", eth.getIPAddress());
Sissors 9:56ed3a56ecc3 34
Sissors 9:56ed3a56ecc3 35
Sissors 8:00cefe0d59ed 36 TCPSocketConnection sock;
Sissors 9:56ed3a56ecc3 37
Sissors 9:56ed3a56ecc3 38 //----------------YOUR SERVER DETAILS-----------------------//
Sissors 8:00cefe0d59ed 39 sock.connect("192.168.0.18", 80);
Sissors 9:56ed3a56ecc3 40 char http_cmd[] = "GET /loader_test.bin HTTP/1.1\r\nHost: 192.168.0.18 80\r\n\r\n";
Sissors 9:56ed3a56ecc3 41 //----------------YOUR SERVER DETAILS-----------------------//
Sissors 9:56ed3a56ecc3 42
Sissors 8:00cefe0d59ed 43 sock.send_all(http_cmd, sizeof(http_cmd)-1);
Sissors 9:56ed3a56ecc3 44
Sissors 7:4ab0430d06e3 45 char buffer[BUFFER_SIZE];
Sissors 9:56ed3a56ecc3 46 int received;
Sissors 9:56ed3a56ecc3 47 int binsize;
Sissors 9:56ed3a56ecc3 48 int bufcount;
Sissors 9:56ed3a56ecc3 49 int remaining;
Sissors 9:56ed3a56ecc3 50 int count = 0;
Sissors 9:56ed3a56ecc3 51
Sissors 9:56ed3a56ecc3 52 //Receive first packet
Sissors 9:56ed3a56ecc3 53 received = sock.receive(buffer, sizeof(buffer));
Sissors 9:56ed3a56ecc3 54 if (received <= 0) {
Sissors 9:56ed3a56ecc3 55 printf("No data received from server\r\n");
Sissors 8:00cefe0d59ed 56 while(1);
Sissors 8:00cefe0d59ed 57 }
Sissors 9:56ed3a56ecc3 58
Sissors 9:56ed3a56ecc3 59 //Search for "Content-Length", if not available, receive more until buffer is full
Sissors 9:56ed3a56ecc3 60 while(strstr(buffer, "Content-Length: ") == 0) {
Sissors 9:56ed3a56ecc3 61 if (received == sizeof(buffer)) {
Sissors 9:56ed3a56ecc3 62 printf("Could not determine size of bin file\r\n");
Sissors 9:56ed3a56ecc3 63 while(1);
Sissors 9:56ed3a56ecc3 64 } else {
Sissors 9:56ed3a56ecc3 65 received += sock.receive(buffer + received, sizeof(buffer) - received);
Sissors 9:56ed3a56ecc3 66 }
Sissors 9:56ed3a56ecc3 67 }
Sissors 9:56ed3a56ecc3 68 //Determine size of the file
Sissors 9:56ed3a56ecc3 69 char *temp = strstr(buffer, "Content-Length: ") + 16; //'16' is size of "Content-Length: "
Sissors 9:56ed3a56ecc3 70 sscanf(temp, "%d", &binsize);
Sissors 9:56ed3a56ecc3 71 printf("Size of the binary = %d bytes\r\n", binsize);
Sissors 7:4ab0430d06e3 72
Sissors 9:56ed3a56ecc3 73 //Search for "\r\n\r\n" (beginning of bin file), if not available, receive more until buffer is full
Sissors 9:56ed3a56ecc3 74 while(strstr(buffer, "\r\n\r\n") == 0) {
Sissors 9:56ed3a56ecc3 75 if (received == sizeof(buffer)) {
Sissors 9:56ed3a56ecc3 76 printf("Could not find start of bin file\r\n");
Sissors 9:56ed3a56ecc3 77 while(1);
Sissors 9:56ed3a56ecc3 78 } else {
Sissors 9:56ed3a56ecc3 79 received += sock.receive(buffer+received, sizeof(buffer) - received);
Sissors 8:00cefe0d59ed 80 }
Sissors 9:56ed3a56ecc3 81 }
Sissors 9:56ed3a56ecc3 82 //Get pointer to begin of the file in the buffer
Sissors 9:56ed3a56ecc3 83 temp = strstr(buffer, "\r\n\r\n") + 4; //'16' is size of "\r\n\r\n"
Sissors 9:56ed3a56ecc3 84
Sissors 9:56ed3a56ecc3 85 //See how much of the bin file we already received, and move this to the start of the buffer
Sissors 9:56ed3a56ecc3 86 bufcount = received - ((uint32_t)temp - (uint32_t)buffer);
Sissors 9:56ed3a56ecc3 87 memmove(buffer, temp, bufcount);
Sissors 9:56ed3a56ecc3 88 printf("Received %d bytes\r\n", bufcount);
Sissors 9:56ed3a56ecc3 89
Sissors 9:56ed3a56ecc3 90 //Start receiving the remaining bin file
Sissors 9:56ed3a56ecc3 91 remaining = binsize - bufcount;
Sissors 8:00cefe0d59ed 92
Sissors 9:56ed3a56ecc3 93 while (remaining > 0) {
Sissors 9:56ed3a56ecc3 94 //Completely fill the buffer each time so we can easily write it to flash
Sissors 9:56ed3a56ecc3 95 while (bufcount < sizeof(buffer)) {
Sissors 9:56ed3a56ecc3 96 //Try to receive remainder of the buffer
Sissors 9:56ed3a56ecc3 97 received = sock.receive(&buffer[bufcount], sizeof(buffer)-bufcount);
Sissors 9:56ed3a56ecc3 98 printf("Received %d\r\n", received);
Sissors 9:56ed3a56ecc3 99 if (received <= 0) {
Sissors 9:56ed3a56ecc3 100 printf("Error, should not happen\r\n");
Sissors 8:00cefe0d59ed 101 while(1);
Sissors 8:00cefe0d59ed 102 }
Sissors 7:4ab0430d06e3 103
Sissors 9:56ed3a56ecc3 104 //Track how much we received and how much is left
Sissors 9:56ed3a56ecc3 105 bufcount += received;
Sissors 9:56ed3a56ecc3 106 remaining -= received;
Sissors 9:56ed3a56ecc3 107 if (remaining == 0) {
Sissors 9:56ed3a56ecc3 108 if (program_flash_boot(count+START_ADDRESS, buffer, sizeof(buffer)) != 0) {
Sissors 9:56ed3a56ecc3 109 printf("Error @ 0x%X!\r\n", count);
Sissors 9:56ed3a56ecc3 110 while(1);
Sissors 9:56ed3a56ecc3 111 }
Sissors 9:56ed3a56ecc3 112 count += sizeof(buffer);
Sissors 9:56ed3a56ecc3 113 break;
Sissors 9:56ed3a56ecc3 114 }
Sissors 7:4ab0430d06e3 115 }
Sissors 9:56ed3a56ecc3 116 //Buffer is full, program it and increase the counter (the counter is a bit redundant, we could get it from the other variables)
Sissors 9:56ed3a56ecc3 117 if (program_flash_boot(count+START_ADDRESS, buffer, sizeof(buffer)) != 0) {
Sissors 9:56ed3a56ecc3 118 printf("Error @ 0x%X!\r\n", count);
Sissors 9:56ed3a56ecc3 119 while(1);
Sissors 9:56ed3a56ecc3 120 }
Sissors 9:56ed3a56ecc3 121 count += sizeof(buffer);
Sissors 9:56ed3a56ecc3 122 bufcount = 0;
Sissors 7:4ab0430d06e3 123 }
Sissors 9:56ed3a56ecc3 124 printf("Done\r\n");
Sissors 8:00cefe0d59ed 125 sock.close();
Sissors 9:56ed3a56ecc3 126
Sissors 8:00cefe0d59ed 127 eth.disconnect();
Sissors 7:4ab0430d06e3 128
Sissors 7:4ab0430d06e3 129 bootloader(count);
Sissors 8:00cefe0d59ed 130
Sissors 7:4ab0430d06e3 131 }