Except for the always needed stack space, no SRAM s20 is used by the compiler. The available SRAM memory depends on the chip, from 64bytes in ATiny22 to 4k in ATmega103. With every declared variable, space is reserved in internal SRAM. If the compiler is run while an Assembler window is active then only the Assembler will be called! Test.bas -> Test.asm -> Test.hex, Test.obj and Test.eep (If InitEE is used!) Then Atmel's free Assembler (AvrAsm.exe) is called to generate an executable file in standard Intel Hex format! Also, Lst and Obj files are generated at the same time! The Obj file can be loaded directly into Atmel's free debugger-simulator AvrStudio! When user dont know about using Save, start with All and then try the minor versions!ĭevices not listed have the same interrupt names!įastAVR Basic Compiler compiles the Basic source file in the currently active editor window by pressing the RUN button! An assembler source file will be generated if no errors are encountered! When the Interrupt routine is more complex, use Save 2, Save 3 or Save All. Save All will save SREG and all registers from r0 to r5 and r19 to r31
#Avr dragon manual plus#
Save 4, as Save 2 plus r0, r1, r20, r21, r22, r23, xl and xh Save 2, as Save 0 plus r24 and r25 Save 3, as Save 1 plus r0, r1, xl and xh
Save 0, will save SREG only, could be omitted, Save 1, will save SREG, zl and zh only. This depends on what variables are used in the routine. Save x determines how many registers will be saved before calling the interrupt. The table of short names listed below may be used for Interrupt names! Of course, instead of using the keyword Sub we will use Interrupt. Interrupt service routines are just like normal subroutines. All AVR interrupts are supported by FastAVR!
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