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Test of Embedded Artists LPCXpresso baseboard SD card and ethernet facilities. This program downloads files from a website to the SD card. This program now uses the HTTPClient from: http://mbed.org/users/donatien/programs/HTTPClient/latest which downloads the files without errors. The previous version of this program was used to demonstrate that an earlier HTTPClient downloaded files with errors.
Dependencies: EthernetNetIf FatFileSystem HTTPClient mbed
Fork of EA_DownloadToSD by
Diff: main.cpp
- Revision:
- 1:0734a7b0fd5e
- Parent:
- 0:1b55f626a40f
--- a/main.cpp Fri Jul 09 14:43:39 2010 +0000 +++ b/main.cpp Fri Aug 13 14:45:50 2010 +0000 @@ -1,78 +1,80 @@ /* Demo of Embedded Artists LPCXpresso baseboard SD card and ethernet facilities. - This program downloads three files from a website to the SD card. - + This program downloads three .wav files from a website to the SD card. + SD Card setup: - + 1. Insert all five jumpers in J39 as described in section 4.3.3 of base board users guide. - - 2. Remove jumper marked "A" in J55 In order to connect PIO1_11 + + 2. Remove jumper marked "A" in J55 In order to connect PIO1_11 to CS signal of J40 (the SPI-SSEL signal) as described in section 4.3.3 of base board users guide. - - Please note that there seems to be some problem with the libraries used. This program - downloads the files to the SD card but often looses some of the file data. - + + Now uses the HTTPClient from http://mbed.org/users/donatien/programs/HTTPClient/latest + which downloads the files without errors. + */ - #include "mbed.h" -#include "SDFileSystem.h" +#include "SDHCFileSystem.h" +#include "EthernetNetIf.h" #include "HTTPClient.h" DigitalOut led1(LED1);// blinks when all done DigitalOut led4(LED4);// blinks during file download +EthernetNetIf eth; HTTPClient http; Ticker tick; -SDFileSystem sd(p5, p6, p7, p24, "sd"); +//SDFileSystem sd(p5, p6, p7, p8, "sd");//mbed Workshop BOB +SDFileSystem sd(p5, p6, p7, p24, "sd");//EA baseboard mosi, miso, sclk, CS, name -void blinkLED4() { +void blinkLED4() {//blinks led4 during download led4 = !led4; } -void dowloadFileToSD(char *url, char *path) { +void downloadFileToSD(char *url, char *path) { - // Open a file to write. - FILE *fd = fopen(path, "w"); - if (fd == NULL) { - error("Can not write to SD, check SD and reset mbed.\r\n"); - } + HTTPFile httpfile(path); printf("Downloading to "); printf("%s", path); printf(" please wait ... \r\n"); tick.attach(& blinkLED4, 0.5); - - http.get(url, fd); + + HTTPResult result = http.get(url, &httpfile); - // Close the file. - fclose(fd); + if (result == HTTP_OK) { + printf("File downloaded OK\r\n"); + } else { + printf("Error during download %d\r\n", result); + } tick.detach(); - printf("File downloaded to SD card\r\n"); led4 = 0; } - -int main(void) { - - printf("\r\n----------- Starting ------------\r\n"); +int main() { - printf("Initialising NetServer ....\r\n"); - //Initialize NetServer which obtains our DHCP address and gets the network interface ready - NetServer * net = NetServer::ready(); + printf("Connecting to network ...\r\n"); + EthernetErr ethErr = eth.setup(); + if (ethErr) { + printf("Error %d in setup.\r\n", ethErr); + return -1; + } + printf("Network interface is up\r\n"); - printf("\r\nNetwork interface is up\r\n"); - dowloadFileToSD("http://homepage.ntlworld.com/green_bean/mbed/bong.wav", "/sd/bong.wav" ); - dowloadFileToSD("http://homepage.ntlworld.com/green_bean/mbed/quarter.wav", "/sd/quarter.wav" ); - dowloadFileToSD("http://homepage.ntlworld.com/green_bean/mbed/hour.wav", "/sd/hour.wav" ); + printf("\r\n----------- Starting download ------------\r\n"); + + downloadFileToSD("http://homepage.ntlworld.com/green_bean/mbed/bong.wav", "/sd/bong.wav" ); + downloadFileToSD("http://homepage.ntlworld.com/green_bean/mbed/quarter.wav", "/sd/quarter.wav" ); + downloadFileToSD("http://homepage.ntlworld.com/green_bean/mbed/hour.wav", "/sd/hour.wav" ); printf("-------------- All done ------------\r\n"); @@ -80,4 +82,5 @@ led1 = !led1; wait(0.2); } + }