| 06:42.20 | *** join/#openjtag aproemel (n=aproemel@www-cache.bocholt.fh-gelsenkirchen.de) |
| 12:13.55 | aproemel | hi together |
| 12:14.14 | aproemel | vmaster: i debugged the registers |
| 12:14.59 | aproemel | and found following: SYS Interrupt is pending, Interrupt Mask enables the SYS Interrupt, in the Interrupt Vector is the adress of the ASM Handler function |
| 12:15.20 | aproemel | but it won't serviced |
| 12:15.41 | aproemel | is there a global interrupt enable flag? i haven't found someting about that in the manual |
| 12:28.00 | vmaster | did you enable interrupts in the CPSR? |
| 12:28.28 | vmaster | the I and F bits are used to mask out interrupts and fiqs |
| 12:28.56 | aproemel | I'll check it, but should AICEnableI |
| 12:29.03 | aproemel | sorry, incomplete line ^^ |
| 12:29.27 | aproemel | AT91F_AIC_EnableIt() done this for me ? |
| 12:29.33 | aproemel | but i check the flags right now |
| 12:30.17 | vmaster | gotta get lunch, i'll be back in 15 minutes |
| 12:30.32 | aproemel | ok, "Guten Appetit" |
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| 12:43.51 | aproemel | vmaster: CPSR: 0x000000df |
| 12:44.14 | aproemel | so: I_Bit is not set (Ibit= 0x20) |
| 12:46.24 | vmaster | mhh, isn't I 0x80 and F 0x40? 0x20 is the T-Bit indicating Thumb |
| 12:48.29 | aproemel | your right |
| 12:48.42 | aproemel | my fault |
| 12:48.47 | aproemel | then thats the problem |
| 12:49.04 | aproemel | I 0x80, F 0x40, T 0x20 |
| 12:53.14 | aproemel | vmaster: i'm a little bit confused today :-( |
| 13:18.06 | aproemel | vmaster: Do I have to clear the I_BIT manually? at my Startup? |
| 13:18.16 | aproemel | then my interrupts will work? |
| 13:18.23 | aproemel | Or am I wrong? |
| 13:19.05 | vmaster | you should clear it once the interrupt source and the interrupt controller are set up |
| 13:19.18 | vmaster | isn't there example code from Atmel showing how to use their ROM services? |
| 13:19.37 | aproemel | yes, but i looked, and haven't found where they clear the bit |
| 13:28.43 | vmaster | ok, in: AT91RM9200-BasicROM_Services-ARM1_2-2_0.zip/AT91RM9200-BasicROM_Services/compil/cstartup_ads.s at the end of the stack setup the code switches to SYSTEM mode with only the F bit set |
| 13:28.44 | aproemel | I looked for clearing the bit |
| 13:28.44 | aproemel | you're right |
| 13:30.51 | aproemel | i did so too, but CPSR 0x200000db |
| 13:31.21 | aproemel | so bit 0x80 is set |
| 13:31.46 | aproemel | i'll paste my startup.s |
| 13:32.57 | aproemel | http://pastebin.ca/366033 |
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