I have successfuly run Keil MDK codes provided in "SDK_2.2.0_TWR-K60D100M_board" on TWR-K60D100M-KIT. Now I am trying to write codes for my own design circuit which uses MK60DX256VLL10. In sample code of GPIO, PORTA11 in TWR-K60D100M is used to toggle LED on/off. Now in my own design circuit, same pin PORTA11 is used to toggle LED on/off. The problem is that the code is built successfuly in KEIL MDK 5.34 but when I press the debug button, the code debugs but instead of normal procedure (in which when debug is pressed, code enters in debug mode and you have to press RUN to run the code on your target ) the code shows RUN button as gray (as if without pressing the RUN button, code has entered RUN mode) but nothing happens on design circuit and when I press STOP button, the error appears ( error message is typed in bold as below to distiguish form my question)
Cannot access memory @0x2000fff8, Read, Acc Size: 4 Byte
Cannot access memory @0x2000fffc, Read, Acc Size: 4 Byte
Cannot access memory @0x20011f94, Read, Acc Size: 4 Byte
I have tried to undesrstand this error. 20011f94 minus 2000fff8 = 1F9C = 8092 (decimal) = 8K memory.
Can anybody help me understand this error. Are there any special setting to change in code when exporting from TWR-K60D100M to MK60DX256VLL10 (apart from target selection in Keil MDK). Project/Code is attached whic is very simple to understand so please have look at it.gpio.zip
In the .scf file, following modifications were made;
#define m_interrupts_ram_start 0x1FFF8000#define m_interrupts_ram_size __ram_vector_table_size__
#define m_data_start (m_interrupts_ram_start + m_interrupts_ram_size)#define m_data_size (0x00008000 - m_interrupts_ram_size)
#define m_data_2_start 0x20000000#define m_data_2_size 0x00008000
After this, code ran successfuly.