Revision 4:fdba0c0ad686, committed 2015-04-02

Comitter:

rlinnmoran

Date:

Thu Apr 02 20:07:39 2015 +0000

Parent:

3:7b35d1709458

Commit message:

- Improved SD functionality; - added UDP functionality; - made code more robust for error reporting; - added LED status indication; ; To do:; - Document code thoroughly; - Multi levels of debug statements; - Recovery from failure conditions

Changed in this revision

diff -r 7b35d1709458 -r fdba0c0ad686 SDFileSystem.cpp
--- a/SDFileSystem.cpp	Mon Mar 17 14:34:01 2014 +0000
+++ b/SDFileSystem.cpp	Thu Apr 02 20:07:39 2015 +0000
@@ -273,8 +273,8 @@
     _spi.write(arg >> 8);
     _spi.write(arg >> 0);
     _spi.write(0x95);
-    
-    // wait for the repsonse (response[7] == 0)
+
+   // wait for the repsonse (response[7] == 0)
     for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
         int response = _spi.write(0xFF);
         if (!(response & 0x80)) {
@@ -348,10 +348,10 @@
 
 int SDFileSystem::_read(uint8_t *buffer, uint32_t 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);
@@ -412,19 +412,20 @@
     uint32_t block_len, mult, blocknr, capacity;
     uint32_t hc_c_size;
     uint64_t blocks;
-    
+  
     // CMD9, Response R2 (R1 byte + 16-byte block read)
     if (_cmdx(9, 0) != 0) {
         debug("Didn't get a response from the disk\n");
         return 0;
     }
     
+    
     uint8_t csd[16];
     if (_read(csd, 16) != 0) {
         debug("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]