Due to a change in COFF file format, MPLAB C18 v3.00 and later will not be compatible with versions of MPLINK prior to v4.00 or versions of the MPLAB IDE prior to v7.21.

MPLINK v4.00 and later will have backward compatibility to earlier versions at the source level only. Any existing object files or libraries compiled with earlier versions of the tools will not link using new versions of the tools. They will need to be recompiled from source.

If the user attempts to use this release with object files or libraries compiled with earlier versions of MPLAB C18, MPLINK, and MPASM, the error message that will be received will be similar to:

Error - Coff file format for 'C:\mcc18\lib/c018i.o' is out of date.

If the user attempts to use an old version of MPLINK to link object files or libraries compiled with this release, the error message that will be received will be similar to:

Error - Coff file format for 'C:\mcc18\lib/c018i.o' does not appear to be a valid COFF file.

1. Problems resolved between v4.10 and v4.11:
   
   

   
   

   (BIN18-60 / BIN18-62)

   The 16F882 ICD2 linkerscript needs to be updated.

   
   
   

   (BIN18-61)

   Crash for size-0 section mapped to region via logical section.

   
   
   

10F200       10F202       10F204       10F206
10F220       10F222

12C508       12C508A      12C509       12C509A
12C671       12C672
12CE518      12CE519      12CE673      12CE674
12CR509A
12F508       12F509       12F510       12F519*
12F609       12F615       12F629       12F635
12F675       12F683
12HV609      12HV615

14000

16C432       16C433       16C505       16C52
16C54        16C54A       16C54B       16C54C
16C55        16C554       16C557       16C558
16C55A       16C56        16C56A       16C57
16C57C       16C58A       16C58B
16C5X
16C61        16C62        16C620       16C620A
16C621       16C621A      16C622       16C622A
16C62A       16C62B       16C63        16C63A
16C64        16C642       16C64A       16C65
16C65A       16C65B       16C66        16C662
16C67        16C71        16C710       16C711
16C712       16C715       16C716       16C717
16C72        16C72A       16C73        16C73A
16C73B       16C74        16C745       16C747
16C74A       16C74B       16C76        16C765
16C77        16C770       16C771       16C773
16C774       16C781       16C782       16C84
16C923       16C924       16C925       16C926
16CE623      16CE624      16CE625
16CR54       16CR54A      16CR54B      16CR54C
16CR56A      16CR57A      16CR57B      16CR57C
16CR58A      16CR58B      16CR62       16CR620A
16CR63       16CR64       16CR65       16CR72
16CR83       16CR84
16CXX
16F505       16F506       16F54        16F57
16F59        16F610       16F616       16F627
16F627A      16F628       16F628A      16F630
16F631       16F636       16F639       16F648A
16F676       16F677       16F684       16F685
16F687       16F688       16F689       16F690
16F716       16F72        16F722       16F723
16F724       16F726       16F727       16F73
16F737       16F74        16F76        16F767
16F77        16F777       16F785       16F818
16F819       16F83        16F84        16F84A
16F87        16F870       16F871       16F872
16F873       16F873A      16F874       16F874A
16F876       16F876A      16F877       16F877A
16F88        16F882       16F883       16F884
16F886       16F887       16F913       16F914
16F916       16F917       16F946

16HV540      16HV610       16HV616      16HV785

17C42        17C42A       17C43        17C44
17C752       17C756       17C756A      17C762
17C766
17CR42       17CR43
17CXX

18C242+      18C252+      18C442+      18C452+
18C601+      18C658+      18C801+      18C858+

18F1220+     18F1230      18F1231      18F1320+
18F1330      18F1331      18F2220+     18F2221
18F2320+     18F2321      18F2331+     18F2410+
18F242+      18F2420+     18F2423      18F2431+
18F2439+     18F2450      18F2455+     18F2458
18F248+      18F2480+     18F24J10+    18F24K20+
18F2510+     18F2515+     18F252+      18F2520+
18F2523      18F2525+     18F2539+     18F2550+
18F2553      18F258+      18F2580+     18F2585+
18F25J10+    18F25K20+    18F2610+     18F2620+
18F2680+     18F2682      18F2685      18F26K20*+
18F4220+     18F4221      18F4320+     18F4321
18F4331+     18F4410+     18F442+      18F4420+
18F4423      18F4431+     18F4439+     18F4450
18F4455+     18F4458      18F448+      18F4480+
18F44J10+    18F44K20+    18F4510+     18F4515+
18F452+      18F4520+     18F4523      18F4525+
18F4539+     18F4550+     18F4553      18F458+
18F4580+     18F4585+     18F45J10+    18F45K20+
18F4610+     18F4620+     18F4680+     18F4682
18F4685      18F46K20*+   18F6310+     18F6390+
18F63J11     18F63J90     18F6410+     18F6490+
18F64J11     18F64J15     18F64J90     18F6520+
18F6525+     18F6527+     18F6585+     18F65J10+
18F65J11     18F65J15+    18F65J50     18F65J90
18F6620+     18F6621+     18F6622+     18F6627+
18F6680+     18F66J10+    18F66J11     18F66J15+
18F66J16     18F66J50     18F66J55     18F66J60
18F66J65     18F6720+     18F6722+     18F67J10+
18F67J11     18F67J50     18F67J60     18F8310+
18F8390+     18F83J11     18F83J90     18F8410+
18F8490+     18F84J11     18F84J15     18F84J90
18F8520+     18F8525+     18F8527+     18F8585+
18F85J10+    18F85J11     18F85J15+    18F85J50
18F85J90     18F8620+     18F8621+     18F8622+
18F8627+     18F8680+     18F86J10+    18F86J11
18F86J15+    18F86J16     18F86J50     18F86J55
18F86J60     18F86J65     18F8720+     18F8722+
18F87J10+    18F87J11     18F87J50     18F87J60
18F96J60     18F96J65     18F97J60

EEPROM16     EEPROM8

RF509AF      RF509AG      RF675F       RF675H
RF675K

*Note: Early adopter support has been added for these devices since last release

+Note: These are the only PIC18 devices with peripheral library support.

THE PARTS CORRESPONDING TO THESE OPTIONS MAY NOT ALL BE COMMERCIALLY AVAILABLE.

The part selection is specified at assembly time and contained within the object file. An appropriate linker command file is necessary to properly link for the chosen part.

Windows XP and Windows 2000

(BIN18-3 / 22483)

MPLIB is unable to work with MPLAB C18 files compiled in the static overlay model.
For example, the source code:

        int add( int a, int b )
        {
           int c;
       
           c = a + b;
           return c;
        }

can be compiled and archived with the commands:

        mcc18 test.c -sco
        mplib -c test.lib test.o

However, attempting to list the files in the archive link the archive will result in the error:

        Error - Coff file 'test.o' could not read string table.
        Error - Could not build member 'test.o' in library file './test.lib'.

(BIN18-5 / 3224)

MPLINK Linker always links in the section which loads initialized data from program memory to data memory, even though it is not required.

(BIN18-21 / 18214)

If MPLINK.EXE is invoked without arguments, an error message stating "Error spawning _mplink.exe" is emitted. This message is spurious; it can be ignored.

(BIN18-22 / 18432)

An interrupt with locals of "overlay" storage class which calls a function reachable from main is incorrectly viewed as recursive.
For example, the program:

        int g (void) {
          return 2;
        }

        void f (void);
        #pragma interrupt f
        void f (void) {
          overlay int x;
          x = g ();
        }

        void main (void) {
          int x;
          x = g ();
        }

Will cause a linker error, stating that 'g' is recursive and has locals of "overlay" storage class. The workaround is to use "auto" instead of "overlay" in the interrupt.

(BIN18-26 / 19225)

MPLINK Linker may generate an assertion failure on programs which contain a section of zero length. The workaround is to remove such sections from the program.

(BIN18-27 / 20403)

The '/r' option of MP2HEX does not work correctly for ranges specified outside of any existing data.
For example, given the following source, 't.asm':

        LIST P=12C508
        CODE 0x100
        MOVLW 0
        MOVLW 1
        MOVLW 2
        MOVLW 3
        END

After assembly, execute 'mp2hex.exe t.o /r 0x104-0x104'. The hex file content is:

        :02 0000 04 0000FA
        :02 0206 00 030C E7
        :00 0000 01 FF

The data record shows the instruction 'MOVLW 3' at address 0x103, but 0x103 was not specified in the range.
Since no data exists at 0x104 in the COFF file, there should be no data bytes in the hex file.

(BIN18-29 / 22228)

Quiet mode (/q) disables the printing of errors and warnings to standard out.

(BIN18-33 / 22947)

The /? command-line option may give the following error message on Windows 2000:

        Error - unknown switch: /r

Use the /h option instead.

(BIN18-50 / 27314)

Program memory utilization is not correct in map files generated for 18F87J10.

(BIN18-53 / 28114)

The linker may disregard the section information in the last IDATA due to CONFIG syntax directives.

(BIN18-63)

ICD2 linker file for 16F506 device is not available.