Complete coding of M16C port

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1510 42af7a65-404d-4744-a932-0658087f49c3

Documentation/NuttX.html

@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
-      <p>Last Updated: February 14, 2009</p>
+      <p>Last Updated: February 16, 2009</p>
     </td>
   </tr>
 </table>
@@ -860,6 +860,28 @@
     </p>
    </td>
 </tr>
+<tr>
+  <td valign="top"><img height="20" width="20" src="favicon.ico"></td>
+  <td bgcolor="#5eaee1">
+    <b>Renesas M16C/26</b>
+  </td>
+</tr>
+<tr>
+  <td><br></td>
+  <td>
+    <p>
+      <b>Renesas M16C/26 Microncontroller</b>.
+      This port uses the Renesas SKP16C26 Starter kit and the GNU M32C toolchain. 
+      The development environment is either Linux or Cygwin under WinXP.
+    </p>
+    <p>
+      <b>STATUS:</b>
+      Initial source files released in nuttx-0.4.2.
+      At this point, the port has not been integrated;
+      That milestone will be announced in NuttX release notes when it is achieved.
+    </p>
+   </td>
+</tr>
 <tr>
   <td valign="top"><img height="20" width="20" src="favicon.ico"></td>
   <td bgcolor="#5eaee1">

TODO

@@ -24,7 +24,8 @@ NuttX TODO List (Last updated November 20, 2008)
   (6)  ARM/LPC214x (arch/arm/src/lpc214x/)
   (3)  ARM/STR71x (arch/arm/src/str71x/)
   (4)  pjrc-8052 / MCS51 (arch/pjrc-8051/)
-  (1)  SH-1 (arch/sh)
+  (1)  Hitachi/Renesas SH-1 (arch/sh/src/sh1)
+  (2)  Renesas M16C/26 (arch/sh/src/m16c)
   (8)  z80/z8/ez80 (arch/z80/)
   (8)  z16 (arch/z16/)
 
@@ -547,8 +548,8 @@ o pjrc-8052 / MCS51 (arch/pjrc-8051/)
   Priority:    Low -- only because there as so many other issues with 8051
 
 
-o SH-1 (arch/sh)
-  ^^^^^^^^^^^^^^
+o Hitachi/Renesas SH-1 (arch/sh/src/sh1)
+  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
   Description:  There are instabilities that make the SH-1 port un-usable.  The
                 nature of these is not understood; the behavior is that certain SH-1
@@ -570,6 +571,18 @@ o SH-1 (arch/sh)
   Priority:     Low -- because the SH-1, SH7032, is very old and only of historical
                 interest.
 
+o Renesas M16C/26 (arch/sh/src/m16c)
+  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  Description: Coding of the initial port is complete, but is untested.
+  Status:      Open
+  Priority:    Low
+
+  Description: Serial drivers were developed for the M16C, however, the SKP16C26
+               StarterKit has not serial connectors.
+  Status:      Open
+  Priority:    Low
+
 o z80/z8/ez80 (arch/z80)
  ^^^^^^^^^^^^^^^^^^^^^^^
 

arch/sh/src/common/up_internal.h

@@ -98,12 +98,6 @@ extern uint32 *current_regs;
  */
 
 extern uint32 g_heapbase;
-
-/* Address of the saved user stack pointer */
-
-#if CONFIG_ARCH_INTERRUPTSTACK > 3
-extern uint32 g_userstack;
-#endif
 #endif
 
 /****************************************************************************

arch/sh/src/sh1/chip.h

@@ -59,6 +59,14 @@
  * Public Data
  ************************************************************************************/
 
+/* Address of the saved user stack pointer */
+
+#ifndef __ASSEMBLY__
+#  if CONFIG_ARCH_INTERRUPTSTACK > 3
+     extern uint32 g_userstack;
+#  endif
+#endif
+
 /************************************************************************************
  * Public Functions
  ************************************************************************************/

configs/skp16c26/include/board.h

@@ -109,8 +109,8 @@
 #undef  M16C_DM1_PRIO            /* DMA1 interrupt priority */
 #undef  M16C_KUP_PRIO            /* Key input interrupt priority */
 #undef  M16C_AD_PRIO             /* A-D conversion interrupt priority */
-#undef  M16C_S2T_PRIO            /* UART2 transmit interrupt priority    */
-#undef  M16C_S2R_PRIO            /* UART2 receive interrupt priority    */
+#undef  M16C_S2T_PRIO            /* UART2 transmit interrupt priority */
+#undef  M16C_S2R_PRIO            /* UART2 receive interrupt priority */
 #undef  M16C_S0T_PRIO            /* UART0 transmit interrupt priority */
 #undef  M16C_S0R_PRIO            /* UART0 receive interrupt priority */
 #undef  M16C_S1T_PRIO            /* UART1 transmit interrupt priority */