Akifumi Takahashi / Mbed OS eth-filesystem-sample

This program is published for a question I throw at the forum (https://os.mbed.com/questions/80658/HardFault-occurs-when-fopen-is-called-af/). I will thank you for answering my question. Abstract: LPC1768 freezes while processing this program, especially when fopen() is called after EthernetInterface.connect() P.S.' This problem is discussed here: https://github.com/ARMmbed/mbed-os/issues/6578

P.S.' This problem is discussed here: https://github.com/ARMmbed/mbed-os/issues/6578

main.cpp@0:a1a5934e82aa, 2018-03-22 (annotated)

Committer:
aktk
Date:
Thu Mar 22 20:18:38 2018 +0000
Revision:
0:a1a5934e82aa
mbed freezes when fopen() after (EthernetInterface*)net->connet();

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aktk 0:a1a5934e82aa 1 #include "mbed.h"
aktk 0:a1a5934e82aa 2 #include "EthernetInterface.h"
aktk 0:a1a5934e82aa 3
aktk 0:a1a5934e82aa 4 LocalFileSystem local("local");
aktk 0:a1a5934e82aa 5 void func();
aktk 0:a1a5934e82aa 6 EthernetInterface *net;
aktk 0:a1a5934e82aa 7
aktk 0:a1a5934e82aa 8 int main()
aktk 0:a1a5934e82aa 9 {
aktk 0:a1a5934e82aa 10 func();
aktk 0:a1a5934e82aa 11 net = new EthernetInterface();
aktk 0:a1a5934e82aa 12 func();
aktk 0:a1a5934e82aa 13 if(net->connect()) {
aktk 0:a1a5934e82aa 14 printf("Error!@EthernetInterface::connect()\r\n");
aktk 0:a1a5934e82aa 15 } else {
aktk 0:a1a5934e82aa 16 printf("IP Address is %s\r\n", net->get_ip_address());
aktk 0:a1a5934e82aa 17 }
aktk 0:a1a5934e82aa 18 func();
aktk 0:a1a5934e82aa 19 }
aktk 0:a1a5934e82aa 20
aktk 0:a1a5934e82aa 21
aktk 0:a1a5934e82aa 22 void func()
aktk 0:a1a5934e82aa 23 {
aktk 0:a1a5934e82aa 24 static int i = 1;
aktk 0:a1a5934e82aa 25 printf("-------test of fopen()#%d----\r\n", i);
aktk 0:a1a5934e82aa 26 if(fopen("/local/test.txt", "r")==NULL)
aktk 0:a1a5934e82aa 27 printf("File could not open\r\n");
aktk 0:a1a5934e82aa 28 else
aktk 0:a1a5934e82aa 29 printf("File was opened successfully.\r\n");
aktk 0:a1a5934e82aa 30 i++;
aktk 0:a1a5934e82aa 31 }