Hello,
I have a website on LwIP with list of files with possibility to download
them. I'm using function:
#define BUFFER_OUT 16000
static BYTE archDownBuffer[BUFFER_OUT] __attribute__ ((section(".sdram")));
char archive_page[WEBSITE_BUFFER] __attribute__ ((section(".sdram")));
static BYTE respond[110];
UINT archDownCounter, sentCounter;
FIL arch_file;
/void archive_download(struct netconn *conn, const char* filepath)//
//{//
//
// FRESULT res;//
// archDownCounter = 0;//
// sentCounter = 0;//
// size_t written;//
// int cx;//
// err_t test;//
// res = f_open(&arch_file, filepath, FA_READ);
//// if (res == FR_OK)//
// {//
// cx =//
// snprintf(archDownBuffer, BUFFER_OUT,//
// "HTTP/1.1 200 OK \r\nContent-Type:
file/csv\r\nContent-Length: %lu\r\n\r\n",//
// arch_file.fsize);
//// netconn_write(conn, (const char* )(archDownBuffer), (size_t
)cx, NETCONN_NOCOPY);
//// for (;;)//
// {//
// res = f_read(&arch_file, archDownBuffer, sizeof
archDownBuffer, &archDownCounter); /* Read a chunk of source file *///
// if (res || archDownCounter == 0)//
// break; /* error or eof *///
// test = netconn_write_partly(conn, (const char*)
(archDownBuffer), (size_t) archDownCounter, NETCONN_NOCOPY,//&written);
//// if (test != ERR_OK)//break; /* error or disk full *///
// if (written != archDownCounter)//break;
//// vTaskDelay(40); //time for other tasks//
// }//
////
// f_close(&arch_file);//
// }//
//}
/to send them to a browser but after a couple of iterations the loop and
whole stack freezes and LwIP stops working.
With really small vTaskDelay and large BUFFER_OUT there is possibility
of Hard Fault pointing to lwip_netconn_do_writemore.
Is there any better method to send large files by netconn?
Regards,
Michal Golebiowski
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