diff options
Diffstat (limited to 'demo/demo4.asm')
| -rw-r--r-- | demo/demo4.asm | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/demo/demo4.asm b/demo/demo4.asm new file mode 100644 index 0000000..662c740 --- /dev/null +++ b/demo/demo4.asm @@ -0,0 +1,81 @@ +; MCU 8051 IDE - Demostration code +; Interrupt monitor and list of active subprograms + +; 1) Press Ctrl+0 to show tab "List of subprograms" on righ panel +; 2) Run interrupt monitor +; (Main menu: Simulator -> Interrupt monitor) +; 3) Press F2 to start simulator and F6 to run animation mode + +; Macro instructions +; ------------------ + +;; Handle interrupt +intr macro + ; Set UART interrupt flags + setb RI + setb TI + + ; Wait a while and return from interrupt + acall wait + reti +endm + + +; Interrupt vectors +; ----------------- + org 00h ; Reset + ajmp start + + org 03h ; External 0 + intr + + org 0Bh ; Timer 0 + intr + + org 13h ; External 0 + intr + + org 1Bh ; Timer 1 + intr + + org 23h ; UART and SPI + intr + + org 2Bh ; Timer 2 + intr + + org 33h ; Analog comparator + intr + +; Subprograms +; ----------------- +wait: ; Wait for 24 cycles + mov R7, #10h + acall wait_aux + ret + +wait_aux: + djnz R7, $ + ret + + +; Program start +; ----------------- +start: + ; Set some interrupt bits + setb TF0 + setb TF1 + setb IE0 + setb IE1 + + ; Enable all interrupts and set priorities + mov IE, #0FFh + setb PS + + ; Infinite loop + sjmp $ + + +; End of code +; ----------------- + end |