![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Test program for BoB3 breakout board. Refer to my Notebook page for further details and contact info.
Revision 0:788d8ebe64b5, committed 2010-04-06
- Comitter:
- paulg
- Date:
- Tue Apr 06 17:08:41 2010 +0000
- Commit message:
Changed in this revision
diff -r 000000000000 -r 788d8ebe64b5 FATFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FATFileSystem.lib Tue Apr 06 17:08:41 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_unsupported/code/fatfilesystem/ \ No newline at end of file
diff -r 000000000000 -r 788d8ebe64b5 SDFileSystem.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.cpp Tue Apr 06 17:08:41 2010 +0000 @@ -0,0 +1,441 @@ +/* mbed Microcontroller Library - SDFileSystem + * Copyright (c) 2008-2009, sford + */ + +// VERY DRAFT CODE! Needs serious rework/refactoring + +/* Introduction + * ------------ + * SD and MMC cards support a number of interfaces, but common to them all + * is one based on SPI. This is the one I'm implmenting because it means + * it is much more portable even though not so performant, and we already + * have the mbed SPI Interface! + * + * The main reference I'm using is Chapter 7, "SPI Mode" of: + * http://www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf + * + * SPI Startup + * ----------- + * The SD card powers up in SD mode. The SPI interface mode is selected by + * asserting CS low and sending the reset command (CMD0). The card will + * respond with a (R1) response. + * + * CMD8 is optionally sent to determine the voltage range supported, and + * indirectly determine whether it is a version 1.x SD/non-SD card or + * version 2.x. I'll just ignore this for now. + * + * ACMD41 is repeatedly issued to initialise the card, until "in idle" + * (bit 0) of the R1 response goes to '0', indicating it is initialised. + * + * You should also indicate whether the host supports High Capicity cards, + * and check whether the card is high capacity - i'll also ignore this + * + * SPI Protocol + * ------------ + * The SD SPI protocol is based on transactions made up of 8-bit words, with + * the host starting every bus transaction by asserting the CS signal low. The + * card always responds to commands, data blocks and errors. + * + * The protocol supports a CRC, but by default it is off (except for the + * first reset CMD0, where the CRC can just be pre-calculated, and CMD8) + * I'll leave the CRC off I think! + * + * Standard capacity cards have variable data block sizes, whereas High + * Capacity cards fix the size of data block to 512 bytes. I'll therefore + * just always use the Standard Capacity cards with a block size of 512 bytes. + * This is set with CMD16. + * + * You can read and write single blocks (CMD17, CMD25) or multiple blocks + * (CMD18, CMD25). For simplicity, I'll just use single block accesses. When + * the card gets a read command, it responds with a response token, and then + * a data token or an error. + * + * SPI Command Format + * ------------------ + * Commands are 6-bytes long, containing the command, 32-bit argument, and CRC. + * + * +---------------+------------+------------+-----------+----------+--------------+ + * | 01 | cmd[5:0] | arg[31:24] | arg[23:16] | arg[15:8] | arg[7:0] | crc[6:0] | 1 | + * +---------------+------------+------------+-----------+----------+--------------+ + * + * As I'm not using CRC, I can fix that byte to what is needed for CMD0 (0x95) + * + * All Application Specific commands shall be preceded with APP_CMD (CMD55). + * + * SPI Response Format + * ------------------- + * The main response format (R1) is a status byte (normally zero). Key flags: + * idle - 1 if the card is in an idle state/initialising + * cmd - 1 if an illegal command code was detected + * + * +-------------------------------------------------+ + * R1 | 0 | arg | addr | seq | crc | cmd | erase | idle | + * +-------------------------------------------------+ + * + * R1b is the same, except it is followed by a busy signal (zeros) until + * the first non-zero byte when it is ready again. + * + * Data Response Token + * ------------------- + * Every data block written to the card is acknowledged by a byte + * response token + * + * +----------------------+ + * | xxx | 0 | status | 1 | + * +----------------------+ + * 010 - OK! + * 101 - CRC Error + * 110 - Write Error + * + * Single Block Read and Write + * --------------------------- + * + * Block transfers have a byte header, followed by the data, followed + * by a 16-bit CRC. In our case, the data will always be 512 bytes. + * + * +------+---------+---------+- - - -+---------+-----------+----------+ + * | 0xFE | data[0] | data[1] | | data[n] | crc[15:8] | crc[7:0] | + * +------+---------+---------+- - - -+---------+-----------+----------+ + */ + +#include "SDFileSystem.h" + +#define SD_COMMAND_TIMEOUT 5000 + +SDFileSystem::SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name) : + FATFileSystem(name), _spi(mosi, miso, sclk), _cs(cs) { + _cs = 1; +} + +#define R1_IDLE_STATE (1 << 0) +#define R1_ERASE_RESET (1 << 1) +#define R1_ILLEGAL_COMMAND (1 << 2) +#define R1_COM_CRC_ERROR (1 << 3) +#define R1_ERASE_SEQUENCE_ERROR (1 << 4) +#define R1_ADDRESS_ERROR (1 << 5) +#define R1_PARAMETER_ERROR (1 << 6) + +// Types +// - v1.x Standard Capacity +// - v2.x Standard Capacity +// - v2.x High Capacity +// - Not recognised as an SD Card + +#define SDCARD_FAIL 0 +#define SDCARD_V1 1 +#define SDCARD_V2 2 +#define SDCARD_V2HC 3 + +int SDFileSystem::initialise_card() { + // Set to 100kHz for initialisation, and clock card with cs = 1 + _spi.frequency(100000); + _cs = 1; + for(int i=0; i<16; i++) { + _spi.write(0xFF); + } + + // send CMD0, should return with all zeros except IDLE STATE set (bit 0) + if(_cmd(0, 0) != R1_IDLE_STATE) { + fprintf(stderr, "No disk, or could not put SD card in to SPI idle state\n"); + return SDCARD_FAIL; + } + + // send CMD8 to determine whther it is ver 2.x + int r = _cmd8(); + if(r == R1_IDLE_STATE) { + return initialise_card_v2(); + } else if(r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) { + return initialise_card_v1(); + } else { + fprintf(stderr, "Not in idle state after sending CMD8 (not an SD card?)\n"); + return SDCARD_FAIL; + } +} + +int SDFileSystem::initialise_card_v1() { + for(int i=0; i<SD_COMMAND_TIMEOUT; i++) { + _cmd(55, 0); + if(_cmd(41, 0) == 0) { + return SDCARD_V1; + } + } + + fprintf(stderr, "Timeout waiting for v1.x card\n"); + return SDCARD_FAIL; +} + +int SDFileSystem::initialise_card_v2() { + + for(int i=0; i<SD_COMMAND_TIMEOUT; i++) { + _cmd(55, 0); + if(_cmd(41, 0) == 0) { + _cmd58(); + return SDCARD_V2; + } + } + + fprintf(stderr, "Timeout waiting for v2.x card\n"); + return SDCARD_FAIL; +} + +int SDFileSystem::disk_initialize() { + + int i = initialise_card(); +// printf("init card = %d\n", i); +// printf("OK\n"); + + _sectors = _sd_sectors(); + + // Set block length to 512 (CMD16) + if(_cmd(16, 512) != 0) { + fprintf(stderr, "Set 512-byte block timed out\n"); + return 1; + } + + _spi.frequency(1000000); // Set to 1MHz for data transfer + return 0; +} + +int SDFileSystem::disk_write(const char *buffer, int block_number) { + // set write address for single block (CMD24) + if(_cmd(24, block_number * 512) != 0) { + return 1; + } + + // send the data block + _write(buffer, 512); + return 0; +} + +int SDFileSystem::disk_read(char *buffer, int block_number) { + // set read address for single block (CMD17) + if(_cmd(17, block_number * 512) != 0) { + return 1; + } + + // receive the data + _read(buffer, 512); + return 0; +} + +int SDFileSystem::disk_status() { return 0; } +int SDFileSystem::disk_sync() { return 0; } +int SDFileSystem::disk_sectors() { return _sectors; } + +// PRIVATE FUNCTIONS + +int SDFileSystem::_cmd(int cmd, int arg) { + _cs = 0; + + // send a command + _spi.write(0x40 | cmd); + _spi.write(arg >> 24); + _spi.write(arg >> 16); + _spi.write(arg >> 8); + _spi.write(arg >> 0); + _spi.write(0x95); + + // wait for the repsonse (response[7] == 0) + for(int i=0; i<SD_COMMAND_TIMEOUT; i++) { + int response = _spi.write(0xFF); + if(!(response & 0x80)) { + _cs = 1; + _spi.write(0xFF); + return response; + } + } + _cs = 1; + _spi.write(0xFF); + return -1; // timeout +} +int SDFileSystem::_cmdx(int cmd, int arg) { + _cs = 0; + + // send a command + _spi.write(0x40 | cmd); + _spi.write(arg >> 24); + _spi.write(arg >> 16); + _spi.write(arg >> 8); + _spi.write(arg >> 0); + _spi.write(0x95); + + // wait for the repsonse (response[7] == 0) + for(int i=0; i<SD_COMMAND_TIMEOUT; i++) { + int response = _spi.write(0xFF); + if(!(response & 0x80)) { + return response; + } + } + _cs = 1; + _spi.write(0xFF); + return -1; // timeout +} + + +int SDFileSystem::_cmd58() { + _cs = 0; + int arg = 0; + + // send a command + _spi.write(0x40 | 58); + _spi.write(arg >> 24); + _spi.write(arg >> 16); + _spi.write(arg >> 8); + _spi.write(arg >> 0); + _spi.write(0x95); + + // wait for the repsonse (response[7] == 0) + for(int i=0; i<SD_COMMAND_TIMEOUT; i++) { + int response = _spi.write(0xFF); + if(!(response & 0x80)) { + int ocr = _spi.write(0xFF) << 24; + ocr |= _spi.write(0xFF) << 16; + ocr |= _spi.write(0xFF) << 8; + ocr |= _spi.write(0xFF) << 0; +// printf("OCR = 0x%08X\n", ocr); + _cs = 1; + _spi.write(0xFF); + return response; + } + } + _cs = 1; + _spi.write(0xFF); + return -1; // timeout +} + +int SDFileSystem::_cmd8() { + _cs = 0; + + // send a command + _spi.write(0x40 | 8); // CMD8 + _spi.write(0x00); // reserved + _spi.write(0x00); // reserved + _spi.write(0x01); // 3.3v + _spi.write(0xAA); // check pattern + _spi.write(0x87); // crc + + // wait for the repsonse (response[7] == 0) + for(int i=0; i<SD_COMMAND_TIMEOUT * 1000; i++) { + char response[5]; + response[0] = _spi.write(0xFF); + if(!(response[0] & 0x80)) { + for(int j=1; j<5; j++) { + response[i] = _spi.write(0xFF); + } + _cs = 1; + _spi.write(0xFF); + return response[0]; + } + } + _cs = 1; + _spi.write(0xFF); + return -1; // timeout +} + +int SDFileSystem::_read(char *buffer, int length) { + _cs = 0; + + // read until start byte (0xFF) + while(_spi.write(0xFF) != 0xFE); + + // read data + for(int i=0; i<length; i++) { + buffer[i] = _spi.write(0xFF); + } + _spi.write(0xFF); // checksum + _spi.write(0xFF); + + _cs = 1; + _spi.write(0xFF); + return 0; +} + +int SDFileSystem::_write(const char *buffer, int length) { + _cs = 0; + + // indicate start of block + _spi.write(0xFE); + + // write the data + for(int i=0; i<length; i++) { + _spi.write(buffer[i]); + } + + // write the checksum + _spi.write(0xFF); + _spi.write(0xFF); + + // check the repsonse token + if((_spi.write(0xFF) & 0x1F) != 0x05) { + _cs = 1; + _spi.write(0xFF); + return 1; + } + + // wait for write to finish + while(_spi.write(0xFF) == 0); + + _cs = 1; + _spi.write(0xFF); + return 0; +} + +static int ext_bits(char *data, int msb, int lsb) { + int bits = 0; + int size = 1 + msb - lsb; + for(int i=0; i<size; i++) { + int position = lsb + i; + int byte = 15 - (position >> 3); + int bit = position & 0x7; + int value = (data[byte] >> bit) & 1; + bits |= value << i; + } + return bits; +} + +int SDFileSystem::_sd_sectors() { + + // CMD9, Response R2 (R1 byte + 16-byte block read) + if(_cmdx(9, 0) != 0) { + fprintf(stderr, "Didn't get a response from the disk\n"); + return 0; + } + + char csd[16]; + if(_read(csd, 16) != 0) { + fprintf(stderr, "Couldn't read csd response from disk\n"); + return 0; + } + + // csd_structure : csd[127:126] + // c_size : csd[73:62] + // c_size_mult : csd[49:47] + // read_bl_len : csd[83:80] - the *maximum* read block length + + int csd_structure = ext_bits(csd, 127, 126); + int c_size = ext_bits(csd, 73, 62); + int c_size_mult = ext_bits(csd, 49, 47); + int read_bl_len = ext_bits(csd, 83, 80); + +// printf("CSD_STRUCT = %d\n", csd_structure); + + if(csd_structure != 0) { + fprintf(stderr, "This disk tastes funny! I only know about type 0 CSD structures\n"); + return 0; + } + + // memory capacity = BLOCKNR * BLOCK_LEN + // where + // BLOCKNR = (C_SIZE+1) * MULT + // MULT = 2^(C_SIZE_MULT+2) (C_SIZE_MULT < 8) + // BLOCK_LEN = 2^READ_BL_LEN, (READ_BL_LEN < 12) + + int block_len = 1 << read_bl_len; + int mult = 1 << (c_size_mult + 2); + int blocknr = (c_size + 1) * mult; + int capacity = blocknr * block_len; + + int blocks = capacity / 512; + + return blocks; +}
diff -r 000000000000 -r 788d8ebe64b5 SDFileSystem.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.h Tue Apr 06 17:08:41 2010 +0000 @@ -0,0 +1,66 @@ +/* mbed Microcontroller Library - SDFileSystem + * Copyright (c) 2008-2009, sford + */ + +// VERY DRAFT CODE!!! + +#ifndef SDFILESYSTEM_H +#define SDFILESYSTEM_H + +#include "mbed.h" +#include "FATFileSystem.h" + +/* Class: SDFileSystem + * Access the filesystem on an SD Card using SPI + * + * Example: + * > SDFileSystem sd(p5, p6, p7, p12, "sd"); + * > + * > int main() { + * > FILE *fp = fopen("/sd/myfile.txt", "w"); + * > fprintf(fp, "Hello World!\n"); + * > fclose(fp); + * > } + */ +class SDFileSystem : public FATFileSystem { +public: + + /* Constructor: SDFileSystem + * Create the File System for accessing an SD Card using SPI + * + * Variables: + * mosi - SPI mosi pin connected to SD Card + * miso - SPI miso pin conencted to SD Card + * sclk - SPI sclk pin connected to SD Card + * cs - DigitalOut pin used as SD Card chip select + * name - The name used to access the filesystem + */ + SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name); + virtual int disk_initialize(); + virtual int disk_write(const char *buffer, int block_number); + virtual int disk_read(char *buffer, int block_number); + virtual int disk_status(); + virtual int disk_sync(); + virtual int disk_sectors(); + +protected: + + int _cmd(int cmd, int arg); + int _cmdx(int cmd, int arg); + int _cmd8(); + int _cmd58(); + int initialise_card(); + int initialise_card_v1(); + int initialise_card_v2(); + + + int _read(char *buffer, int length); + int _write(const char *buffer, int length); + int _sd_sectors(); + int _sectors; + + SPI _spi; + DigitalOut _cs; +}; + +#endif
diff -r 000000000000 -r 788d8ebe64b5 lwip.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lwip.lib Tue Apr 06 17:08:41 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_unsupported/code/lwip/ \ No newline at end of file
diff -r 000000000000 -r 788d8ebe64b5 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Tue Apr 06 17:08:41 2010 +0000 @@ -0,0 +1,444 @@ +/* Test program for BoB3 breakout board + * Paul Griffith + * Last edit: 29 Jan 2010 + */ + +#include "mbed.h" +#include "SDFileSystem.h" +#include "lwip/opt.h" +#include "lwip/stats.h" +#include "lwip/sys.h" +#include "lwip/pbuf.h" +#include "lwip/udp.h" +#include "lwip/tcp.h" +#include "lwip/dns.h" +#include "lwip/dhcp.h" +#include "lwip/init.h" +#include "lwip/netif.h" +#include "netif/etharp.h" +#include "netif/loopif.h" +#include "device.h" + + +void printhelps(void); +void listdir(void); +void printfile(char *); +void bad_args(void); +int exist(char *); +int eth_test(void); + + +Serial pc(USBTX, USBRX); +SDFileSystem sd(p5, p6, p7, p8, "sd"); +DigitalOut led1(p25), led2(p26), led3(p27), led4(p28), led5(p29), led6(p30); + +int main() { + char buf[120], *cp; + char arg1[50], arg2[50], arg3[50], filename[20]; + int argc, cnt = 0, i, j, k, l; + FILE *fp; + time_t seconds; + struct tm t; + + + printf("BoB3 test program\n"); + printf("Type ? for help\n"); + + while (1) { + printf("> "); + cp = buf; + while ( (*cp++ = putchar(getchar())) != '\r') ; //get a line of input + *cp = '\0'; //terminate buffer + printf("\n"); + argc = sscanf(buf, "%s%s%s", arg1, arg2, arg3); //extract command and arguments + if (argc < 1) + continue; + switch (arg1[0]) { + + case 'c': //create file on uSD card + if (argc != 2) { + bad_args(); + break; + } + sprintf(filename, "/sd/%s", arg2); + if (exist(filename) == 1) { + printf("File already exists\n"); + break; + } + fp = fopen(filename, "w"); + if (fp == 0) { + printf("Unable to create file\n"); + } else { + printf("File created\n"); + seconds = time(NULL); + fprintf(fp, "Hello world, the time is %s\n", ctime(&seconds)); + fclose(fp); + } + break; + + case 'd': //delete file on uSD card + if (argc != 2) { + bad_args(); + break; + } + sprintf(filename, "/sd/%s", arg2); + if (exist(filename) == 0) + printf("File does not exist\n"); + else { + remove(filename); + printf("File deleted\n"); + } + break; + + case 'e': //test Ethernet status LEDS + if (argc == 1) + i = 0; + else + sscanf(arg2, "%d", &i); + switch (i) { + case 0: + led1 = 1; + wait(1.0); + led1 = 0; + wait(1.0); + led2 = 1; + wait(1.0); + led2 = 0; + break; + + case 1: + led3 = 1; + wait(1.0); + led3 = 0; + wait(1.0); + led4 = 1; + wait(1.0); + led4 = 0; + break; + + case 2: + led5 = 1; + wait(1.0); + led5 = 0; + wait(1.0); + led6 = 1; + wait(1.0); + led6 = 0; + break; + } + break; + + case 'E': //run Ethernet test + printf("Reset mbed to exit Ethernet test\n"); + i = eth_test(); + printf("Ethernet test returned %d\n", i); + break; + + case 'l': //list uSD card directory + listdir(); + break; + + case 'p': //print uSD card file + if (argc != 2) { + bad_args(); + break; + } + sprintf(filename, "/sd/%s", arg2); + if (exist(filename) == 0) + printf("File does not exist\n"); + else + printfile(filename); + break; + + case 'q': //quit + exit(1); + break; + + case 't': //print current time and date + seconds = time(NULL); + printf("Current time = %s\n", ctime(&seconds)); + break; + + case 'T': //set time and date + sscanf(buf, "%c %d %d %d %d %d", &i, &t.tm_hour, &t.tm_min, &t.tm_mday, + &t.tm_mon, &t.tm_year); + // adjust for tm structure required values + t.tm_year = t.tm_year - 1900; + t.tm_mon = t.tm_mon - 1; + t.tm_sec = 0; +// printf("tm = %d %d %d %d %d %d %d\n", t.tm_hour, t.tm_min, t.tm_sec, t.tm_mday, t.tm_mon, t.tm_year); + // set the time + set_time(mktime(&t)); + break; + + case 'U': //run USB test + printf("Any ideas folks?\n"); + break; + + case '?': //print help + printhelps(); + break; + + default: + printf("?? Unknown command\n"); + break; + } + } +} + +//Command functions + +void printhelps(void) { + printf("Command summary:\n"); + printf("c filename create a file on uSD card\n"); + printf("d filename delete a file on uSD card\n"); + printf("e pins test Ethernet status LEDs (pins = 0-2)\n"); + printf("E run Ethernet test (reset mbed to exit)\n"); + printf("l list directory of uSD card\n"); + printf("p filename print file on uSD card to stdout\n"); + printf("q quit\n"); + printf("t print current time and date\n"); + printf("T h m d m y set RTC time and date\n"); + printf("U run USB device test\n"); + printf("? print help\n"); +} + +void listdir(void) { + DIR *d; + struct dirent *p; + + d = opendir("/sd"); + if (d != NULL) { + while ((p = readdir(d)) != NULL) { + printf(" - %s\n", p->d_name); + } + } else { + printf("Could not open directory!\n"); + } + closedir(d); +} + +void printfile(char *name) { + char buf[80], *cp; + FILE *fp; + + fp = fopen(name, "r"); + while (1) { + cp = fgets(buf, sizeof(buf), fp); + if (cp == NULL) + break; + if ( (cp = strchr(buf, '\n')) ) + *cp = '\0'; //trim trailing \n because + puts(buf); //puts will convert terminator to \n + } + fclose(fp); +} + +//Support functions + +void bad_args(void) { + printf("?? Bad arguments\n"); +} + +int exist(char *name) { + FILE *fp; + + fp = fopen(name, "r"); + if (fp != NULL) + fclose(fp); + return ((fp == NULL) ? 0 : 1); +} + + +//Ethernet test stuff (based on Michael Wei's Ethernet Tester program) + +Ethernet ethernet; +DigitalOut ledLink(p25); +DigitalOut ledSpeed(p26); +DigitalOut ledStage0(LED1); +DigitalOut ledStage1(LED2); +DigitalOut ledStage2(LED3); +DigitalOut ledTCP80(LED4); + +DigitalIn phyLink(P1_25); +DigitalIn phySpeed(P1_26); + +volatile char stage = 0; + +Ticker stage_blinker; + +struct netif netif_data; + +const char testPage[] = "HTTP/1.1 200 OK\r\n" + "Content-Type: text/html\r\n" + "Connection: Close\r\n\r\n" + "<html>" + "<head>" + "<title>mbed test page</title>" + "<style type='text/css'>" + "body{font-family:'Arial, sans-serif', sans-serif;font-size:.8em;background-color:#fff;}" + "</style>" + "</head>" + "<body>%s</body></html>\r\n\r\n"; + +char buffer[1024]; +char temp[1024]; + +err_t recv_callback(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err) { + struct netif *netif = &netif_data; + ledTCP80 = true; + printf("TCP callback from %d.%d.%d.%d\r\n", ip4_addr1(&(pcb->remote_ip)),ip4_addr2(&(pcb->remote_ip)),ip4_addr3(&(pcb->remote_ip)),ip4_addr4(&(pcb->remote_ip))); + char *data; + /* Check if status is ok and data is arrived. */ + if (err == ERR_OK && p != NULL) { + /* Inform TCP that we have taken the data. */ + tcp_recved(pcb, p->tot_len); + data = static_cast<char *>(p->payload); + /* If the data is a GET request we can handle it. */ + if (strncmp(data, "GET ", 4) == 0) { + printf("Handling GET request...\r\n"); + printf("Request:\r\n%s\r\n", data); + + //generate the test page + time_t seconds = time(NULL); + sprintf(temp, "<h1>Congratulations!</h1>If you can see this page, your mbed is working properly." + "<h2>mbed Configuration</h2>" + "mbed RTC time:%s<br/>" + "mbed HW address: %02x:%02x:%02x:%02x:%02x:%02x<br/>" + "mbed IP Address: %s<br/>", + ctime(&seconds), + (char*) netif->hwaddr[0], + (char*) netif->hwaddr[1], + (char*) netif->hwaddr[2], + (char*) netif->hwaddr[3], + (char*) netif->hwaddr[4], + (char*) netif->hwaddr[5], + inet_ntoa(*(struct in_addr*)&(netif->ip_addr)) + ); + sprintf(buffer, testPage, temp); + if (tcp_write(pcb, (void *)buffer, strlen(buffer), 1) == ERR_OK) { + tcp_output(pcb); + printf("Closing connection...\r\n"); + tcp_close(pcb); + } + } + else + { + printf("Non GET request...\r\nRequest:\r\n%s\r\n", data); + } + + pbuf_free(p); + } + + else { + /* No data arrived */ + /* That means the client closes the connection and sent us a packet with FIN flag set to 1. */ + /* We have to cleanup and destroy out TCPConnection. */ + printf("Connection closed by client.\r\n"); + pbuf_free(p); + } + /* Don't panic! Everything is fine. */ + ledTCP80 = false; + return ERR_OK; +} +/* Accept an incomming call on the registered port */ +err_t accept_callback(void *arg, struct tcp_pcb *npcb, err_t err) { + LWIP_UNUSED_ARG(arg); + /* Subscribe a receive callback function */ + tcp_recv(npcb, &recv_callback); + /* Don't panic! Everything is fine. */ + return ERR_OK; +} + +void stageblinker() +{ + switch (stage) + { + case 0: + ledStage0 = !ledStage0; + ledStage1 = false; + ledStage2 = false; + break; + case 1: + ledStage0 = true; + ledStage1 = !ledStage1; + ledStage2 = false; + break; + case 2: + ledStage0 = true; + ledStage1 = true; + ledStage2 = true; + stage_blinker.detach(); + break; + } +} + +int eth_test() { + printf("mBed Ethernet Tester 1.0\r\nStarting Up...\r\n"); + stage = 0; + struct netif *netif = &netif_data; + struct ip_addr ipaddr; + struct ip_addr netmask; + struct ip_addr gateway; + Ticker tickFast, tickSlow, tickARP, eth_tick, dns_tick, dhcp_coarse, dhcp_fine; + stage_blinker.attach_us(&stageblinker, 1000*500); + + char *hostname = "my-mbed"; + + printf("Configuring device for DHCP...\r\n"); + /* Start Network with DHCP */ + IP4_ADDR(&netmask, 255,255,255,255); + IP4_ADDR(&gateway, 0,0,0,0); + IP4_ADDR(&ipaddr, 0,0,0,0); + /* Initialise after configuration */ + lwip_init(); + netif->hwaddr_len = ETHARP_HWADDR_LEN; + device_address((char *)netif->hwaddr); + netif = netif_add(netif, &ipaddr, &netmask, &gateway, NULL, device_init, ip_input); + netif->hostname = hostname; + netif_set_default(netif); + dhcp_start(netif); // <-- Use DHCP + + /* Initialise all needed timers */ + tickARP.attach_us( ðarp_tmr, ARP_TMR_INTERVAL * 1000); + tickFast.attach_us(&tcp_fasttmr, TCP_FAST_INTERVAL * 1000); + tickSlow.attach_us(&tcp_slowtmr, TCP_SLOW_INTERVAL * 1000); + dns_tick.attach_us(&dns_tmr, DNS_TMR_INTERVAL * 1000); + dhcp_coarse.attach_us(&dhcp_coarse_tmr, DHCP_COARSE_TIMER_MSECS * 1000); + dhcp_fine.attach_us(&dhcp_fine_tmr, DHCP_FINE_TIMER_MSECS * 1000); + stage = 1; + while (!netif_is_up(netif)) { + ledLink = ethernet.link(); + ledSpeed = !phySpeed; + device_poll(); + } + +/* + while (!(netif->dhcp->state == DHCP_BOUND || netif->dhcp->state == DHCP_PERMANENT)) + { + ledLink = ethernet.link(); + device_poll(); + //printf("Waiting for DHCP response, state = %d\r\n", netif->dhcp->state); + //wait_ms(100); + } + */ + stage = 2; + printf("Interface is up, local IP is %s\r\n", + inet_ntoa(*(struct in_addr*)&(netif->ip_addr))); + + printf("Starting Web Server...\r\n"); + + /* Bind a function to a tcp port */ + struct tcp_pcb *pcb = tcp_new(); + if (tcp_bind(pcb, IP_ADDR_ANY, 80) == ERR_OK) { + pcb = tcp_listen(pcb); + tcp_accept(pcb, &accept_callback); + } + + printf("Waiting for connection...\r\n"); + while(1) { + device_poll(); + ledLink = ethernet.link(); + ledSpeed = !phySpeed; + } +}
diff -r 000000000000 -r 788d8ebe64b5 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Apr 06 17:08:41 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/49a220cc26e0