Post by thread:Setting configuration bits in 18c452

I'm moving some code from the 16c74 to the 18c452 and having trouble setting the configuration bits on the 18c452 using MPLAB 4.12.12 . Below is a portion of the absolute listing (sorry about the line wraps). The 18c452 uses little endian ordering, so the WORD at 0x300000 has the low byte at 0x300000 and the high byte at 0x300001. Looking at the first config word in the listing, we find the assembler came up with 0x020F while it APPEARS it should've come up with 0x22FF. So, it looks like the assembler is clearing the high nibble of each byte. Any ideas on what I (or the assembler) am doing wrong, and how to fix it? Thanks! Harold 00201 IFDEF __18C452 00202 __CONFIG 0X300000, 0XFF ; No code protect 300000 020F 00203 __CONFIG 0X300001, B'100010' ; Oscillator switch disabled, HS oscillator 00204 __CONFIG 0X300002, B'10' ; Brown out resets at 4.5V, power up timer enabled 300002 0102 00205 __CONFIG 0X300003, B'1' ; WDT enabled with postscaler of 128 300004 01FF 00206 __CONFIG 0X300005, B'1' ; CCP2 muxed with RC1, just like 16c74 300006 FF03 00207 __CONFIG 0X300006, B'11' ; Reset on stack under/overflow 00208 ENDIF Harold Hallikainen spam_OUTharoldTakeThisOuThallikainen.com Hallikainen & Friends, Inc. See the FCC Rules at http://hallikainen.com/FccRules and comments filed in LPFM proceeding at http://hallikainen.com/lpfm ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: dl.http://www.juno.com/dynoget/tagj.