First version

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@158 a1c6a512-1295-4272-9138-f99709370657
2002-04-20 23:18:14 +00:00 · 2002-04-20 23:18:14 +00:00 · 257d17da6d
commit 257d17da6d
parent f3989d3c93
6 changed files with 462 additions and 0 deletions
--- a/firmware/test/i2c/main.c
+++ b/firmware/test/i2c/main.c
@ -0,0 +1,128 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "i2c.h"
+#include "mas.h"
+#include "sh7034.h"
+#include "debug.h"
+
+int strlen(unsigned char* str)
+{
+   int i=0;
+   while (*str++)
+      i++;
+   return i;
+}
+
+int main(void)
+{
+   char buf[40];
+   char str[32];
+   int i=0;
+
+   /* Clear it all! */
+    SSR1 &= ~(SCI_RDRF | SCI_ORER | SCI_PER | SCI_FER);
+
+    /* This enables the serial Rx interrupt, to be able to exit into the
+       debugger when you hit CTRL-C */
+    SCR1 |= 0x40;
+    SCR1 &= ~0x80;
+    asm ("ldc\t%0,sr" : : "r"(0<<4));
+
+    debugf("Olle: %d\n", 7);
+    
+   i2c_init();
+   debug("I2C Init done\n");
+   i=mas_readmem(MAS_BANK_D1,0xff6,(unsigned long*)buf,2);
+   if (i) {
+       debugf("Error - mas_readmem() returned %d\n", i);
+       while(1);
+   }
+
+   i = buf[0] | buf[1] << 8;
+   debugf("MAS version: %x\n", i);
+   i = buf[4] | buf[5] << 8;
+   debugf("MAS revision: %x\n", i);
+
+   i=mas_readmem(MAS_BANK_D1,0xff9,(unsigned long*)buf,7);
+   if (i) {
+       debugf("Error - mas_readmem() returned %d\n", i);
+       while(1);
+   }
+
+   for(i = 0;i < 7;i++)
+   {
+       str[i*2+1] = buf[i*4];
+       str[i*2] = buf[i*4+1];
+   }
+   str[i*2] = 0;
+   debugf("Description: %s\n", str);
+
+   i=mas_readreg(0xe6);
+   if (i < 0) {
+       debugf("Error - mas_readreg() returned %d\n", i);
+       while(1);
+   }
+
+   debugf("Register 0xe6: %x\n", i);
+   
+
+   debugf("Writing register 0xaa\n");
+   
+   i=mas_writereg(0xaa, 0x1);
+   if (i < 0) {
+       debugf("Error - mas_writereg() returned %d\n", i);
+       while(1);
+   }
+
+   i=mas_readreg(0xaa);
+   if (i < 0) {
+       debugf("Error - mas_readreg() returned %d\n", i);
+       while(1);
+   }
+
+   debugf("Register 0xaa: %x\n", i);
+   
+   debugf("Writing register 0xaa again\n");
+   
+   i=mas_writereg(0xaa, 0);
+   if (i < 0) {
+       debugf("Error - mas_writereg() returned %d\n", i);
+       while(1);
+   }
+
+   i=mas_readreg(0xaa);
+   if (i < 0) {
+       debugf("Error - mas_readreg() returned %d\n", i);
+       while(1);
+   }
+
+   debugf("Register 0xaa: %x\n", i);
+   
+   while(1);
+}
+
+extern const void stack(void);
+
+const void* vectors[] __attribute__ ((section (".vectors"))) = 
+{
+   main,	/* Power-on reset */
+   stack,	/* Power-on reset (stack pointer) */
+   main,	/* Manual reset */
+   stack	/* Manual reset (stack pointer) */
+};