EmbeddedArtists AB / EALib

A library with drivers for different peripherals on the LPC4088 QuickStart Board or related add-on boards.

Dependencies:   FATFileSystem

Dependents:   LPC4088test LPC4088test_ledonly LPC4088test_deleteall LPC4088_RAMtest ... more

Files at this revision

API Documentation at this revision

Revision 18:9f1f1a8b4729, committed 2014-10-27

Comitter:
embeddedartists
Date:
Mon Oct 27 10:18:08 2014 +0000
Parent:
17:b3a179cc3d88
Child:
19:74540582e639
Commit message:
Added support for Macronix QSPI flash

Changed in this revision

QSPIFileSystem.cpp Show annotated file Show diff for this revision Revisions of this file
SPIFI.cpp Show annotated file Show diff for this revision Revisions of this file
SPIFI.h Show annotated file Show diff for this revision Revisions of this file 
--- a/QSPIFileSystem.cpp	Wed Aug 27 14:24:16 2014 +0000
+++ b/QSPIFileSystem.cpp	Mon Oct 27 10:18:08 2014 +0000
@@ -215,6 +215,20 @@
         memInfo.tocBlockAddr   = SPIFI_MEM_BASE + (NUM_BLOCKS * ERASE_SIZE) - (memInfo.numTocs * memInfo.tocSizeInBytes);      
         break;
       
+      case SPIFI::Macronix_MX25L6435EM2I:
+        /* For the Macronix memory the TOC occupies 8192 bytes and that is bigger than 
+           one erase block (which is 4096 bytes). It is possible to either keep only
+           one TOC or to create a couple to reduce wear on the memory. In this case 
+           the multiple TOCs option is used. */
+        strcpy(memInfo.memName, "Macronix_MX25L6435EM2I");
+        memInfo.memSize        = obj->memSize;
+        memInfo.eraseBlockSize = 4*1024;
+        memInfo.numEraseBlocks = memInfo.memSize / memInfo.eraseBlockSize;
+        memInfo.tocSizeInBytes = sizeof(toc_entry_t) * memInfo.numEraseBlocks;
+        memInfo.numTocs        = 8;
+        memInfo.tocBlockAddr   = SPIFI_MEM_BASE + (NUM_BLOCKS * ERASE_SIZE) - (memInfo.numTocs * memInfo.tocSizeInBytes);      
+        break;
+      
       case SPIFI::UnknownDevice:
       default:
         debug("INIT: Memory is unknown and may not work as expected\n");

--- a/SPIFI.cpp	Wed Aug 27 14:24:16 2014 +0000
+++ b/SPIFI.cpp	Mon Oct 27 10:18:08 2014 +0000
@@ -158,6 +158,12 @@
       _memorySize = _romData->memSize;
       _eraseBlockSize = 4*1024;
     } 
+    else if ((_romData->mfger == 0xc2) && (_romData->devType == 0x20) && (_romData->devID == 0x17) && (_romData->memSize > 0x100000))
+    {
+      _device = Macronix_MX25L6435EM2I;
+      _memorySize = _romData->memSize;
+      _eraseBlockSize = 4*1024;
+    } 
     else 
     {
       debug("SPIFI::init(): Memory is unknown and may not work as expected\n");

--- a/SPIFI.h	Wed Aug 27 14:24:16 2014 +0000
+++ b/SPIFI.h	Mon Oct 27 10:18:08 2014 +0000
@@ -83,8 +83,9 @@
     };
     
     enum Device {
-        Spansion_S25FL032, /* Manufacturer: 0x01, devType: 0x02, devID: 0x15 */
-        Winbond_W25Q64FV,  /* Manufacturer: 0xEF, devType: 0x40, devID: 0x17 */
+        Spansion_S25FL032,      /* Manufacturer: 0x01, devType: 0x02, devID: 0x15 */
+        Winbond_W25Q64FV,       /* Manufacturer: 0xEF, devType: 0x40, devID: 0x17 */
+        Macronix_MX25L6435EM2I, /* Manufacturer: 0xC2, devType: 0x20, devID: 0x17 */
         UnknownDevice
     };