Problems with IRAM1 and IRAM2

Hy
I'm using LPC2368. The programm size is about 150kB. if i make a new array (200 Byte) and the memory assignement is default (placed in IRAM1) the programm isn't working correct. If the memory assignement is set to IRAM2 the programm works correct. In IRAM1 there is at least 10kB free. who can tell me why is not working if the array is placed in IRAM1?

Does anyone ave a solution?

I attached the memory map of IRAM1 an 2 from the list file.
Array placed in IRAM1, programm is not working correct:
****************************************************************************************** Execution Region RW_IRAM1 (Base: 0x40000100, Size: 0x00003ce0, Max: 0x00007eff, ABSOLUTE, COMPRESSED[0x0000014c])

Base Addr Size Type Attr Idx E Section Name Object

0x40000100 0x00000004 Data RW 7 .data utilities.o 0x40000104 0x000000f8 Data RW 18 .data globals.o 0x400001fc 0x00000008 Data RW 24 .data inputs.o 0x40000204 0x00000038 Data RW 30 .data timer.o 0x4000023c 0x00000008 Data RW 32 .data pca9554.o 0x40000244 0x00000010 Data RW 39 .data uart.o 0x40000254 0x00000004 Data RW 43 .data i2c.o 0x40000258 0x0000000c Data RW 48 .data fat16.o 0x40000264 0x00000020 Data RW 52 .data sd.o 0x40000284 0x00000004 Data RW 54 .data retarget.o 0x40000288 0x00000008 Data RW 60 .data main.o 0x40000290 0x00000008 Data RW 64 .data command.o 0x40000298 0x00000021 Data RW 67 .data rs485.o 0x400002b9 0x00000003 PAD 0x400002bc 0x00000008 Data RW 71 .data ir.o 0x400002c4 0x00000018 Data RW 74 .data motor.o 0x400002dc 0x0000000c Data RW 83 .data lcode.o 0x400002e8 0x00000008 Data RW 86 .data log.o 0x400002f0 0x00000010 Data RW 91 .data error.o 0x40000300 0x00000234 Data RW 96 .data debug.o 0x40000534 0x00000034 Data RW 99 .data intervall.o 0x40000568 0x00000008 Data RW 103 .data testmode.o 0x40000570 0x0000003d Data RW 105 .data vevey.o 0x400005ad 0x00000003 PAD 0x400005b0 0x00000010 Zero RW 11 .bss auxout.o 0x400005c0 0x000002e0 Zero RW 20 .bss globals.o 0x400008a0 0x00000034 Zero RW 22 .bss gpio.o 0x400008d4 0x0000007c Zero RW 25 .bss inputs.o 0x40000950 0x00000024 Zero RW 28 .bss outputs.o 0x40000974 0x000001a0 Zero RW 40 .bss uart.o 0x40000b14 0x00000110 Zero RW 46 .bss srecord.o 0x40000c24 0x00000388 Zero RW 50 .bss fat16.o 0x40000fac 0x0000001c Zero RW 65 .bss command.o 0x40000fc8 0x00000154 Zero RW 69 .bss rs485.o 0x4000111c 0x00000018 Zero RW 72 .bss ir.o 0x40001134 0x00000150 Zero RW 76 .bss motor.o 0x40001284 0x00000018 Zero RW 81 .bss setup.o 0x4000129c 0x00000010 Zero RW 87 .bss log.o 0x400012ac 0x0000003c Zero RW 89 .bss memo.o 0x400012e8 0x000000d1 Zero RW 107 .bss vevey.o 0x400013b9 0x00000003 PAD 0x400013bc 0x00000060 Zero RW 179 .bss libspace.o(c_t.l) 0x4000141c 0x00000004 PAD 0x40001420 0x00001000 Zero RW 2 HEAP lpc2300.o 0x40002420 0x000019c0 Zero RW 1 STACK lpc2300.o

Execution Region RW_IRAM2 (Base: 0x7fe00000, Size: 0x00002470, Max: 0x00003fff, ABSOLUTE)

Base Addr Size Type Attr Idx E Section Name Object

0x7fe00000 0x00000010 Data RW 56 .data logger.o 0x7fe00010 0x00002460 Zero RW 57 .bss logger.o
*****************************************************************************************

Array placed in IRAM2, programm is working correct:

Execution Region RW_IRAM1 (Base: 0x40000100, Size: 0x00003bc8, Max: 0x00007eff, ABSOLUTE, COMPRESSED[0x00000138])

Base Addr Size Type Attr Idx E Section Name Object

0x40000100 0x00000004 Data RW 7 .data utilities.o 0x40000104 0x000000f8 Data RW 18 .data globals.o 0x400001fc 0x00000008 Data RW 24 .data inputs.o 0x40000204 0x00000038 Data RW 30 .data timer.o 0x4000023c 0x00000008 Data RW 32 .data pca9554.o 0x40000244 0x00000010 Data RW 39 .data uart.o 0x40000254 0x00000004 Data RW 43 .data i2c.o 0x40000258 0x0000000c Data RW 48 .data fat16.o 0x40000264 0x00000020 Data RW 52 .data sd.o 0x40000284 0x00000004 Data RW 54 .data retarget.o 0x40000288 0x00000008 Data RW 60 .data main.o 0x40000290 0x00000008 Data RW 64 .data command.o 0x40000298 0x00000021 Data RW 67 .data rs485.o 0x400002b9 0x00000003 PAD 0x400002bc 0x00000008 Data RW 71 .data ir.o 0x400002c4 0x00000018 Data RW 74 .data motor.o 0x400002dc 0x0000000c Data RW 83 .data lcode.o 0x400002e8 0x00000008 Data RW 86 .data log.o 0x400002f0 0x00000010 Data RW 91 .data error.o 0x40000300 0x00000234 Data RW 96 .data debug.o 0x40000534 0x00000034 Data RW 99 .data intervall.o 0x40000568 0x00000008 Data RW 103 .data testmode.o 0x40000570 0x00000010 Zero RW 11 .bss auxout.o 0x40000580 0x000002e0 Zero RW 20 .bss globals.o 0x40000860 0x00000034 Zero RW 22 .bss gpio.o 0x40000894 0x0000007c Zero RW 25 .bss inputs.o 0x40000910 0x00000024 Zero RW 28 .bss outputs.o 0x40000934 0x000001a0 Zero RW 40 .bss uart.o 0x40000ad4 0x00000110 Zero RW 46 .bss srecord.o 0x40000be4 0x00000388 Zero RW 50 .bss fat16.o 0x40000f6c 0x0000001c Zero RW 65 .bss command.o 0x40000f88 0x00000154 Zero RW 69 .bss rs485.o 0x400010dc 0x00000018 Zero RW 72 .bss ir.o 0x400010f4 0x00000150 Zero RW 76 .bss motor.o 0x40001244 0x00000018 Zero RW 81 .bss setup.o 0x4000125c 0x00000010 Zero RW 87 .bss log.o 0x4000126c 0x0000003c Zero RW 89 .bss memo.o 0x400012a8 0x00000060 Zero RW 179 .bss libspace.o(c_t.l) 0x40001308 0x00001000 Zero RW 2 HEAP lpc2300.o 0x40002308 0x000019c0 Zero RW 1 STACK lpc2300.o

Execution Region RW_IRAM2 (Base: 0x7fe00000, Size: 0x00002584, Max: 0x00003fff, ABSOLUTE)

Base Addr Size Type Attr Idx E Section Name Object

0x7fe00000 0x00000010 Data RW 56 .data logger.o 0x7fe00010 0x0000003d Data RW 105 .data vevey.o 0x7fe0004d 0x00000003 PAD 0x7fe00050 0x00002460 Zero RW 57 .bss logger.o 0x7fe024b0 0x000000d1 Zero RW 107 .bss vevey.o