no jump to UART2 service routine

[fischer]

Posted on July 25, 2006 at 13:34

no jump to UART2 service routine

[fischer]

Posted on May 17, 2011 at 11:50

uPSD3233B 80pin

hi all, this is my testprogram: EA=1; IEA=0x10; SCON2|=1; // grrrrr no ser2 interupt ---> C:0x0056 D2AF SETB EA(0xA8.7) C:0x0058 75A710 MOV IEA(0xA7),#0x10 // now i set RI2 to 1 (RI Flag of serport2) C:0x005B 439A01 ORL SCON2(0x9A),#0x01 // no jump to 0x4B ISR of serport2 C:0x005E B2B7 CPL P3_7(0xB0.7) C:0x0060 B2B7 CPL P3_7(0xB0.7) C:0x0062 B2B7 CPL P3_7(0xB0.7) C:0x0064 B2B7 CPL P3_7(0xB0.7) C:0x0065 B2B7 CPL P3_7(0xB0.7) C:0x0068 B2B7 CPL P3_7(0xB0.7) why is there no jump ??????? thanks a lot... :| [ This message was edited by: rafi on 25-07-2006 07:55 ] [ This message was edited by: rafi on 25-07-2006 07:56 ] [ This message was edited by: rafi on 25-07-2006 10:10 ]

[wek2]

Posted on May 17, 2011 at 11:50

I just tried something similar and it worked for me OK on uPSD3212.

Sorry for the nasty code, it was stitched together from various sources. It flashes 3x (as a consequence of calling aaa1 (my ''debug printout'') with 2*3 in r3 and a LED at P3.3), then toggles LED on P1.6 and repeats infinitely. I think this is enough proof that it works OK. The P1.1 test and subsequent ROM switch at the beginning is just a jump to bootloader, it works the same without this part, too. Jan Waclawek 0000 org 0 0000 02005C jmp main 004B org 004Bh 004B C0E0 push acc 004D C0D0 push psw 004F 539AFC anl SCON2,#11111100B ;clr ri(&ti) 0052 7B06 mov r3,#2*3 0054 12007E call aaa1 0057 D0D0 pop psw 0059 D0E0 pop acc 005B 32 reti 005C main: 005C 75AE55 mov WDKEY,#55h ;disable watchdog 005F 209109 jb P1.1,NoBoot 0062 9008E2 MOV DPTR, #VMREG 0065 7406 MOV A, #(VM_REG_PSEN_MAIN_FLASH OR VM_REG_PSEN_BOOT_FLASH) 0067 F0 MOVX @DPTR, A 0068 028000 jmp 8000h ; BootLoader ;jump to bootloader 006B NoBoot: 006B D2AF SETB EA 006D 75A710 MOV IEA,#010h 0070 loop: 0070 439A01 ORL SCON2,#01h 0073 innerloop: 0073 E59A mov a,scon2 0075 20E0FB jb acc.0,innerloop 0078 B296 cpl P1.6 007A 80F4 sjmp loop 007C 80FE stop: sjmp stop 007E aaa1: 007E B2B3 cpl p3.3 0080 7A03 mov r2,#3 0082 BB0102 cjne r3,#1,aaa 0085 7A06 mov r2,#6 0087 aaa: 0087 D8FE djnz r0,aaa 0089 D9FC djnz r1,aaa 008B DAFA djnz r2,aaa 008D DBEF djnz r3,aaa1 008F 22 ret end [ This message was edited by: wek1 on 25-07-2006 14:05 ] [ This message was edited by: wek1 on 25-07-2006 14:06 ]

[fischer]

Posted on May 17, 2011 at 11:50

hi wek1,

thanks for reply !! thats exactly the same that i do. you find the same code in my assembler: D2AF SETB EA 75A710 MOV IEA,#010h 439A01 ORL SCON2,#01h but mine doesnt work. never ever a jump to 0x4B. errata sheet of 3233B?? is there nobody from STM who cares ????????????