Diff: flash/25AA02EE48.c

Revision:

0:0a841b89d614

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flash/25AA02EE48.c	Mon Oct 11 10:34:55 2010 +0000
@@ -0,0 +1,88 @@
+/****************************************************************************
+ *    Copyright 2010 Andy Kirkham, Stellar Technologies Ltd
+ *    
+ *    This file is part of the Satellite Observers Workbench (SOWB).
+ *
+ *    SOWB is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    SOWB is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with SOWB.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *    $Id: main.cpp 5 2010-07-12 20:51:11Z ajk $
+ *    
+ ***************************************************************************/
+
+#include "sowb.h"
+#include "user.h"
+#include "flash.h"
+#include "ssp0.h"
+#include "gpio.h"
+
+char mac_addr[6];
+
+/** _25AA02E48_mac_addr
+ *
+ * Get a copy of the MAC address with a null terminator.
+ *
+ * @param char *s a buffer, 7 bytes long, to hold the MAC+null
+ */
+void _25AA02E48_mac_addr(char *s) {
+    memcpy(s, mac_addr, 6);
+    s[6] = '\0';
+}
+
+/** _25AA02E48_mac_addr_printable
+ *
+ * Create a string that represents the MAC addr as a
+ * printable ASCII string. The caller is responsible 
+ * for allocating enough space in the buffer pointed
+ * to by s to hold the string.
+ *
+ * @param char *s a buffer, 18 bytes long, to hold the MAC
+ * @param char divider A character to divide the bytes or 0
+ */
+void _25AA02E48_mac_addr_printable(char *s, char divider) {
+    if (divider != 0) {
+        sprintf(s, "%02X%c%02X%c%02X%c%02X%c%02X%c%02X", 
+            mac_addr[0], divider, mac_addr[1], divider, mac_addr[2], divider, 
+            mac_addr[3], divider, mac_addr[4], divider, mac_addr[5]);
+    }
+    else {
+        sprintf(s, "%02X%02X%02X%02X%02X%02X", 
+            mac_addr[0], mac_addr[1], mac_addr[2], 
+            mac_addr[3], mac_addr[4], mac_addr[5]);    
+    }
+}
+
+/** _25AA02E48_init
+ */
+void _25AA02E48_init(void) {
+
+    /* Assumes SSP0 is already _init() */
+    
+    while(!SSP0_request()) WHILE_WAITING_DO_PROCESS_FUNCTIONS;
+    
+    LPC_SSP0->CPSR = _25AA02E48_SSP_INIT_CPSR;    
+    AA02E48_CS_ASSERT;
+    FLASH_SHORT_COMMAND(FLASH_READ);
+    SSP0_WRITE_BYTE(0xFA);
+    SSP0_FLUSH_RX_FIFO;
+    
+    for (int i = 0; i < 6; i++) {
+        SSP0_WRITE_BYTE(0x00);
+        while(SSP0_IS_BUSY || (LPC_SSP0->SR & (1UL << 2)) == 0);
+        mac_addr[i] = (char)LPC_SSP0->DR;        
+    }
+    
+    AA02E48_CS_DEASSERT;
+    LPC_SSP0->CPSR = FLASH_SSP_INIT_CPSR;
+    SSP0_release();
+}