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LPC 18xx and RAM blocks

Question asked by Jan Malý on Jul 18, 2017
Latest reply on Jul 25, 2017 by Jan Malý

Hello,

 

can me somebody help, please?

I try to use different blocks of RAM. LPC 1837 has

Flash    MFLASH 512

Flash2  MFLASH 512

RAM RamLoc32

RAM2 RamLoc40

RAM3 RamAHB32

RAM4 RamAHB16

RAM5 RamAHB_ETB16

 

When I use RAM and RAM2, it works:

__DATA(RAM2) test_array_1 t1;

__DATA(RAM) test_array_2 t2;

 

but, when I try to use another blocks, the processor has any problem. It can't boot or has a problem with USB (doesn't work).

__DATA(RAM3) test_array_3 t3;

__DATA(RAM4) test_array_4 t4;

__DATA(RAM5) test_array_5 t5;

 

These RAM3, RAM4, RAM5 are usefull only for peripheries?

 

thx

 

 

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