From 0f55cc0d89dc018aa1a2e7ad1c926889f98ec26d Mon Sep 17 00:00:00 2001
From: bnewbold <bnewbold@robocracy.org>
Date: Thu, 5 Aug 2010 21:47:12 -0400
Subject: partial progress on FSMC for SRAM

---
 examples/test-fsmc.cpp | 149 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 examples/test-fsmc.cpp

(limited to 'examples')

diff --git a/examples/test-fsmc.cpp b/examples/test-fsmc.cpp
new file mode 100644
index 0000000..a4e43d6
--- /dev/null
+++ b/examples/test-fsmc.cpp
@@ -0,0 +1,149 @@
+/* *****************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2010 LeafLabs LLC.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ * ****************************************************************************/
+
+/**
+ *  @brief Sample main.cpp file. Sends "Hello world!" out SPI1.
+ *
+ *  SPI1 is set up to be a master transmitter at 4.5MHz, little endianness,
+ *  and SPI mode 0.
+ *
+ *  Pin 10 is used as Chip Select
+ *
+ */
+
+#include "wirish.h"
+#include "fsmc.h"
+#include "rcc.h"
+#include "gpio.h"
+
+#define LED_PIN 23
+#define DISC_PIN 14
+
+// System control block registers
+#define SCB_BASE    (SCB_Reg*)(0xE000ED00)
+
+typedef struct {
+    volatile uint32 CPUID;
+    volatile uint32 ICSR;
+    volatile uint32 VTOR;
+    volatile uint32 AIRCR;
+    volatile uint32 SCR;
+    volatile uint32 CCR;
+    volatile uint32 SHPR1;
+    volatile uint32 SHPR2;
+    volatile uint32 SHPR3;
+    volatile uint32 SHCRS;
+    volatile uint32 CFSR;
+    volatile uint32 HFSR;
+    uint32 pad1;   
+    volatile uint32 MMAR;
+    volatile uint32 BFAR;
+} SCB_Reg;
+
+SCB_Reg *scb; 
+
+uint16 *ptr;
+int toggle = 0;
+
+void setup() {
+   uint32 id;
+   scb = (SCB_Reg*)SCB_BASE;
+
+   rcc_enable_clk_fsmc();
+
+   pinMode(LED_PIN, OUTPUT);
+   pinMode(DISC_PIN, OUTPUT);
+   digitalWrite(DISC_PIN,1);
+   digitalWrite(LED_PIN,1);
+
+   Serial1.begin(9600);
+   Serial1.println("Hello World!");
+
+   Serial1.print("Init... ");
+   fsmc_native_sram_init();
+   Serial1.println("Done.");
+
+
+   ptr = (uint16*)(0x60000000);
+   //ptr = (uint16*)(0x68000000);
+   //ptr = (uint16*)(0x80000000);
+   Serial1.print("Writing... ");
+
+   *ptr = 0xFFFF;
+   Serial1.println("Done.");
+
+   Serial1.print("Reading... ");
+   id = *ptr;
+   Serial1.print("Done: ");
+   Serial1.println(id,BIN);
+
+   /*
+   Serial1.print("CPUID is at: ");
+   id = (uint32)(&(scb->CPUID));
+   Serial1.println(id,BIN);
+   */
+
+   Serial1.print("CPUID: ");
+   id = scb->CPUID;
+   Serial1.println(id,BIN);
+   Serial1.print("ICSR:  ");
+   id = scb->ICSR;
+   Serial1.println(id,BIN);
+   Serial1.print("CFSR:  ");
+   id = scb->CFSR;
+   Serial1.println(id,BIN);
+   Serial1.print("HFSR:  ");
+   id = scb->HFSR;
+   Serial1.println(id,BIN);
+   Serial1.print("MMAR:  ");
+   id = scb->MMAR;
+   Serial1.println(id,BIN);
+   Serial1.print("BFAR:  ");
+   id = scb->BFAR;
+   Serial1.println(id,BIN);
+
+}
+
+void loop() {
+   digitalWrite(LED_PIN, toggle);
+   toggle ^= 1;
+   delay(100);
+
+   *ptr = 0xFFFF;
+   /*
+   Serial1.print((uint32)(ptr),HEX);
+   Serial1.print(": ");
+   Serial1.println(*ptr,BIN);
+   */
+}
+
+int main(void) {
+   init();
+   setup();
+
+   while (1) {
+      loop();
+   }
+   return 0;
+}
-- 
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