Diff: main.cpp

Revision:

2:980e3d46d20e

Parent:

1:be908b1aafe6

Child:

3:d4a2357f06e3

--- a/main.cpp	Fri Mar 04 15:50:11 2016 +0000
+++ b/main.cpp	Sat Mar 05 14:06:46 2016 +0000
@@ -1,3 +1,28 @@
+/* Cypress FM25W256 F-RAM component library test program
+ *
+ * Copyright (c) 2016 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *  *
+ *  @author  Toyomasa Watarai
+ *  @version 1.0
+ *  @date    5-March-2016
+ *
+ *  http://www.cypress.com/products/nonvolatile-ram
+ *  http://www.cypress.com/documentation/datasheets/fm25w256-256-kbit-32-k-8-serial-spi-f-ram?source=search&keywords=FM25W256&cat=technical_documents
+ *
+ */
+
 #include "mbed.h"
 #include "FM25W256.h"
 
@@ -25,6 +50,26 @@
     f_ram.write(0, buf, 16);
 }
 
+void write_protect_test()
+{
+    f_ram.set_write_protect(FM25W256::BANK_ALL);
+
+    pc.printf("[write data]\n");
+    pc.printf("0x0000 : ");
+    uint8_t buf[16];
+    for(int i=0; i<16; i++) {
+        buf[i] = i;
+        pc.printf("%02X ", buf[i]);
+    }
+    pc.printf("\n");
+    f_ram.write(0, buf, 16);
+
+    pc.printf("[read data]\n");
+    read_test();
+
+    f_ram.clear_write_protect();
+}
+
 int main()
 {
     pc.printf("\nFM25W256 test program - write test? (y/n) ");
@@ -37,6 +82,12 @@
         pc.printf("\n");
         read_test();
     }
+    
+    pc.printf("\nFM25W256 test program - write protect test? (y/n) ");
+    if (pc.getc() == 'y') {
+        pc.printf("\n");
+        write_protect_test();
+    }
 
     while(1) {
     }