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| author | bnewbold <bnewbold@robocracy.org> | 2010-08-05 21:47:12 -0400 |
|---|---|---|
| committer | bnewbold <bnewbold@robocracy.org> | 2010-08-05 21:47:22 -0400 |
| commit | 0f55cc0d89dc018aa1a2e7ad1c926889f98ec26d (patch) | |
| tree | da21b7edba9b779591b56b6c08f0012ed2cbe31b /examples | |
| parent | ccd9833f264d6e20a9f2c81baebe162f07eec996 (diff) | |
| download | librambutan-0f55cc0d89dc018aa1a2e7ad1c926889f98ec26d.tar.gz librambutan-0f55cc0d89dc018aa1a2e7ad1c926889f98ec26d.zip | |
partial progress on FSMC for SRAM
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/test-fsmc.cpp | 149 |
1 files changed, 149 insertions, 0 deletions
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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