Sam Grove
A UNIX emulation shell to access the underlying SDCard FileSystem through a terminal interface
Information
Dependencies not included with library:
Information
SDShell does not change the com baudrate. Access is made using the baud as initialized by the Serial object when passed into the SDShell object
Example
#include "mbed.h"
#include "SDFileSystem.h"
#include "SDShell.h"
Serial com(USBTX, USBRX);
SDFileSystem sd(p11, p12, p13, p14, "sd");
SDShell emulate;
int main()
{
emulate.init();
emulate.shell(com, sd, "/sd");
}
Diff: SDShell.cpp
- Revision:
- 9:5e1764ff5dfa
- Parent:
- 8:30aa615d4508
- Child:
- 10:f269775edfdf
--- a/SDShell.cpp Wed May 08 06:16:46 2013 +0000
+++ b/SDShell.cpp Tue May 14 12:49:18 2013 +0000
@@ -6,6 +6,7 @@
SDShell::SDShell()
{
_debug = 0;
+ memset(_cwd, 0, SHELL_BUF_SIZE);
return;
}
@@ -24,6 +25,7 @@
_cmds.attachMsg("rm" , this, &SDShell::rm);
_cmds.attachMsg("exit" , this, &SDShell::exit);
_cmds.attachMsg("debug", this, &SDShell::debug);
+ _cmds.attachMsg("du" , this, &SDShell::du);
return;
}
@@ -41,6 +43,9 @@
while(0 == done)
{
+ memset(_cmd , 0, SHELL_BUF_SIZE);
+ memset(_cmdline, 0, SHELL_BUF_SIZE);
+ memset(_newpath, 0, SHELL_BUF_SIZE);
// gather input from the Serial object
shellInput();
// break up the command line arguemnt
@@ -278,6 +283,7 @@
char *SDShell::cat(char *cmd)
{
+ memset(_buf, 0, 512);
FILE *fp= fopen(_newpath, "r");
if (fp != NULL)
{
@@ -358,11 +364,28 @@
return (char *)OK;
}
-char SDShell::btoa(uint8_t b)
+char *SDShell::du(char *cmd)
{
- return ((b&0xf) < 0xa) ? ((b&0xf)+0x30) : ((b&0xf)+0x37);
+ uint32_t file_size = 0;
+ memset(_buf, 0, 512);
+
+ FILE *fp= fopen(_newpath, "rb");
+ if (fp != NULL)
+ {
+ while (!feof(fp))
+ {
+ uint32_t tmp = fread(_buf, 1, 512, fp);
+ file_size += tmp;
+ }
+ fclose(fp);
+ _com->printf(" %d (bytes) %s\n", file_size, _newpath);
+ }
+ else
+ {
+ _com->printf("%s: No such file\n", _newpath);
+ }
+ return (char *)OK;
}
-
