Stack_Size EQU 0x00000400 AREA STACK, NOINIT, READWRITE, ALIGN=3 Stack_Mem SPACE Stack_Size __initial_sp Heap_Size EQU 0x00000200 AREA HEAP, NOINIT, READWRITE, ALIGN=3 __heap_base Heap_Mem SPACE Heap_Size __heap_limit PRESERVE8 THUMB ; Vector Table Mapped to Address 0 at Reset AREA RESET, DATA, READONLY EXPORT __Vectors EXPORT __Vectors_End EXPORT __Vectors_Size __Vectors DCD __initial_sp ; Top of Stack DCD Reset_Handler ; Reset Handler DCD NMI_Handler ; NMI Handler DCD HardFault_Handler ; Hard Fault Handler DCD MemManage_Handler ; MPU Fault Handler DCD BusFault_Handler ; Bus Fault Handler DCD UsageFault_Handler ; Usage Fault Handler DCD 0 ; Reserved DCD 0 ; Reserved DCD 0 ; Reserved DCD 0 ; Reserved DCD SVC_Handler ; SVCall Handler DCD DebugMon_Handler ; Debug Monitor Handler DCD 0 ; Reserved DCD PendSV_Handler ; PendSV Handler DCD SysTick_Handler ; SysTick Handler ; External Interrupts DCD WWDG_IRQHandler ; Window WatchDog DCD PVD_IRQHandler ; PVD through EXTI Line detection DCD TAMP_STAMP_IRQHandler ; Tamper and TimeStamps through the EXTI line DCD RTC_WKUP_IRQHandler ; RTC Wakeup through the EXTI line DCD FLASH_IRQHandler ; FLASH DCD RCC_IRQHandler ; RCC DCD EXTI0_IRQHandler ; EXTI Line0 DCD EXTI1_IRQHandler ; EXTI Line1 DCD EXTI2_IRQHandler ; EXTI Line2 DCD EXTI3_IRQHandler ; EXTI Line3 DCD EXTI4_IRQHandler ; EXTI Line4 DCD DMA1_Stream0_IRQHandler ; DMA1 Stream 0 DCD DMA1_Stream1_IRQHandler ; DMA1 Stream 1 DCD DMA1_Stream2_IRQHandler ; DMA1 Stream 2 DCD DMA1_Stream3_IRQHandler ; DMA1 Stream 3 DCD DMA1_Stream4_IRQHandler ; DMA1 Stream 4 DCD DMA1_Stream5_IRQHandler ; DMA1 Stream 5 DCD DMA1_Stream6_IRQHandler ; DMA1 Stream 6 DCD ADC_IRQHandler ; ADC1, ADC2 and ADC3s DCD CAN1_TX_IRQHandler ; CAN1 TX DCD CAN1_RX0_IRQHandler ; CAN1 RX0 DCD CAN1_RX1_IRQHandler ; CAN1 RX1 DCD CAN1_SCE_IRQHandler ; CAN1 SCE DCD EXTI9_5_IRQHandler ; External Line[9:5]s DCD TIM1_BRK_TIM9_IRQHandler ; TIM1 Break and TIM9 DCD TIM1_UP_TIM10_IRQHandler ; TIM1 Update and TIM10 DCD TIM1_TRG_COM_TIM11_IRQHandler ; TIM1 Trigger and Commutation and TIM11 DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare DCD TIM2_IRQHandler ; TIM2 DCD TIM3_IRQHandler ; TIM3 DCD TIM4_IRQHandler ; TIM4 DCD I2C1_EV_IRQHandler ; I2C1 Event DCD I2C1_ER_IRQHandler ; I2C1 Error DCD I2C2_EV_IRQHandler ; I2C2 Event DCD I2C2_ER_IRQHandler ; I2C2 Error DCD SPI1_IRQHandler ; SPI1 DCD SPI2_IRQHandler ; SPI2 DCD USART1_IRQHandler ; USART1 DCD USART2_IRQHandler ; USART2 DCD USART3_IRQHandler ; USART3 DCD EXTI15_10_IRQHandler ; External Line[15:10]s DCD RTC_Alarm_IRQHandler ; RTC Alarm (A and B) through EXTI Line DCD OTG_FS_WKUP_IRQHandler ; USB OTG FS Wakeup through EXTI line DCD TIM8_BRK_TIM12_IRQHandler ; TIM8 Break and TIM12 DCD TIM8_UP_TIM13_IRQHandler ; TIM8 Update and TIM13 DCD TIM8_TRG_COM_TIM14_IRQHandler ; TIM8 Trigger and Commutation and TIM14 DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare DCD DMA1_Stream7_IRQHandler ; DMA1 Stream7 DCD FMC_IRQHandler ; FMC DCD SDIO_IRQHandler ; SDIO DCD TIM5_IRQHandler ; TIM5 DCD SPI3_IRQHandler ; SPI3 DCD UART4_IRQHandler ; UART4 DCD UART5_IRQHandler ; UART5 DCD TIM6_DAC_IRQHandler ; TIM6 and DAC1&2 underrun errors DCD TIM7_IRQHandler ; TIM7 DCD DMA2_Stream0_IRQHandler ; DMA2 Stream 0 DCD DMA2_Stream1_IRQHandler ; DMA2 Stream 1 DCD DMA2_Stream2_IRQHandler ; DMA2 Stream 2 DCD DMA2_Stream3_IRQHandler ; DMA2 Stream 3 DCD DMA2_Stream4_IRQHandler ; DMA2 Stream 4 DCD ETH_IRQHandler ; Ethernet DCD ETH_WKUP_IRQHandler ; Ethernet Wakeup through EXTI line DCD CAN2_TX_IRQHandler ; CAN2 TX DCD CAN2_RX0_IRQHandler ; CAN2 RX0 DCD CAN2_RX1_IRQHandler ; CAN2 RX1 DCD CAN2_SCE_IRQHandler ; CAN2 SCE DCD OTG_FS_IRQHandler ; USB OTG FS DCD DMA2_Stream5_IRQHandler ; DMA2 Stream 5 DCD DMA2_Stream6_IRQHandler ; DMA2 Stream 6 DCD DMA2_Stream7_IRQHandler ; DMA2 Stream 7 DCD USART6_IRQHandler ; USART6 DCD I2C3_EV_IRQHandler ; I2C3 event DCD I2C3_ER_IRQHandler ; I2C3 error DCD OTG_HS_EP1_OUT_IRQHandler ; USB OTG HS End Point 1 Out DCD OTG_HS_EP1_IN_IRQHandler ; USB OTG HS End Point 1 In DCD OTG_HS_WKUP_IRQHandler ; USB OTG HS Wakeup through EXTI DCD OTG_HS_IRQHandler ; USB OTG HS DCD DCMI_IRQHandler ; DCMI DCD CRYP_IRQHandler ; CRYP crypto DCD HASH_RNG_IRQHandler ; Hash and Rng DCD FPU_IRQHandler ; FPU DCD UART7_IRQHandler ; UART7 DCD UART8_IRQHandler ; UART8 DCD SPI4_IRQHandler ; SPI4 DCD SPI5_IRQHandler ; SPI5 DCD SPI6_IRQHandler ; SPI6 DCD SAI1_IRQHandler ; SAI1 DCD LTDC_IRQHandler ; LTDC DCD LTDC_ER_IRQHandler ; LTDC error DCD DMA2D_IRQHandler ; DMA2D __Vectors_End __Vectors_Size EQU __Vectors_End - __Vectors AREA |.text|, CODE, READONLY ; Reset handler Reset_Handler PROC EXPORT Reset_Handler [WEAK] LDR R0, =Main BX R0 ENDP ; Dummy Exception Handlers (infinite loops which can be modified) NMI_Handler PROC EXPORT NMI_Handler [WEAK] B . ENDP HardFault_Handler\ PROC EXPORT HardFault_Handler [WEAK] B . ENDP MemManage_Handler\ PROC EXPORT MemManage_Handler [WEAK] B . ENDP BusFault_Handler\ PROC EXPORT BusFault_Handler [WEAK] B . ENDP UsageFault_Handler\ PROC EXPORT UsageFault_Handler [WEAK] B . ENDP SVC_Handler PROC EXPORT SVC_Handler [WEAK] B . ENDP DebugMon_Handler\ PROC EXPORT DebugMon_Handler [WEAK] B . ENDP PendSV_Handler PROC EXPORT PendSV_Handler [WEAK] B . ENDP SysTick_Handler PROC EXPORT SysTick_Handler [WEAK] B . ENDP Default_Handler PROC EXPORT WWDG_IRQHandler [WEAK] EXPORT PVD_IRQHandler [WEAK] EXPORT TAMP_STAMP_IRQHandler [WEAK] EXPORT RTC_WKUP_IRQHandler [WEAK] EXPORT FLASH_IRQHandler [WEAK] EXPORT RCC_IRQHandler [WEAK] EXPORT EXTI0_IRQHandler [WEAK] EXPORT EXTI1_IRQHandler [WEAK] EXPORT EXTI2_IRQHandler [WEAK] EXPORT EXTI3_IRQHandler [WEAK] EXPORT EXTI4_IRQHandler [WEAK] EXPORT DMA1_Stream0_IRQHandler [WEAK] EXPORT DMA1_Stream1_IRQHandler [WEAK] EXPORT DMA1_Stream2_IRQHandler [WEAK] EXPORT DMA1_Stream3_IRQHandler [WEAK] EXPORT DMA1_Stream4_IRQHandler [WEAK] EXPORT DMA1_Stream5_IRQHandler [WEAK] EXPORT DMA1_Stream6_IRQHandler [WEAK] EXPORT ADC_IRQHandler [WEAK] EXPORT CAN1_TX_IRQHandler [WEAK] EXPORT CAN1_RX0_IRQHandler [WEAK] EXPORT CAN1_RX1_IRQHandler [WEAK] EXPORT CAN1_SCE_IRQHandler [WEAK] EXPORT EXTI9_5_IRQHandler [WEAK] EXPORT TIM1_BRK_TIM9_IRQHandler [WEAK] EXPORT TIM1_UP_TIM10_IRQHandler [WEAK] EXPORT TIM1_TRG_COM_TIM11_IRQHandler [WEAK] EXPORT TIM1_CC_IRQHandler [WEAK] EXPORT TIM2_IRQHandler [WEAK] EXPORT TIM3_IRQHandler [WEAK] EXPORT TIM4_IRQHandler [WEAK] EXPORT I2C1_EV_IRQHandler [WEAK] EXPORT I2C1_ER_IRQHandler [WEAK] EXPORT I2C2_EV_IRQHandler [WEAK] EXPORT I2C2_ER_IRQHandler [WEAK] EXPORT SPI1_IRQHandler [WEAK] EXPORT SPI2_IRQHandler [WEAK] EXPORT USART1_IRQHandler [WEAK] EXPORT USART2_IRQHandler [WEAK] EXPORT USART3_IRQHandler [WEAK] EXPORT EXTI15_10_IRQHandler [WEAK] EXPORT RTC_Alarm_IRQHandler [WEAK] EXPORT OTG_FS_WKUP_IRQHandler [WEAK] EXPORT TIM8_BRK_TIM12_IRQHandler [WEAK] EXPORT TIM8_UP_TIM13_IRQHandler [WEAK] EXPORT TIM8_TRG_COM_TIM14_IRQHandler [WEAK] EXPORT TIM8_CC_IRQHandler [WEAK] EXPORT DMA1_Stream7_IRQHandler [WEAK] EXPORT FMC_IRQHandler [WEAK] EXPORT SDIO_IRQHandler [WEAK] EXPORT TIM5_IRQHandler [WEAK] EXPORT SPI3_IRQHandler [WEAK] EXPORT UART4_IRQHandler [WEAK] EXPORT UART5_IRQHandler [WEAK] EXPORT TIM6_DAC_IRQHandler [WEAK] EXPORT TIM7_IRQHandler [WEAK] EXPORT DMA2_Stream0_IRQHandler [WEAK] EXPORT DMA2_Stream1_IRQHandler [WEAK] EXPORT DMA2_Stream2_IRQHandler [WEAK] EXPORT DMA2_Stream3_IRQHandler [WEAK] EXPORT DMA2_Stream4_IRQHandler [WEAK] EXPORT ETH_IRQHandler [WEAK] EXPORT ETH_WKUP_IRQHandler [WEAK] EXPORT CAN2_TX_IRQHandler [WEAK] EXPORT CAN2_RX0_IRQHandler [WEAK] EXPORT CAN2_RX1_IRQHandler [WEAK] EXPORT CAN2_SCE_IRQHandler [WEAK] EXPORT OTG_FS_IRQHandler [WEAK] EXPORT DMA2_Stream5_IRQHandler [WEAK] EXPORT DMA2_Stream6_IRQHandler [WEAK] EXPORT DMA2_Stream7_IRQHandler [WEAK] EXPORT USART6_IRQHandler [WEAK] EXPORT I2C3_EV_IRQHandler [WEAK] EXPORT I2C3_ER_IRQHandler [WEAK] EXPORT OTG_HS_EP1_OUT_IRQHandler [WEAK] EXPORT OTG_HS_EP1_IN_IRQHandler [WEAK] EXPORT OTG_HS_WKUP_IRQHandler [WEAK] EXPORT OTG_HS_IRQHandler [WEAK] EXPORT DCMI_IRQHandler [WEAK] EXPORT CRYP_IRQHandler [WEAK] EXPORT HASH_RNG_IRQHandler [WEAK] EXPORT FPU_IRQHandler [WEAK] EXPORT UART7_IRQHandler [WEAK] EXPORT UART8_IRQHandler [WEAK] EXPORT SPI4_IRQHandler [WEAK] EXPORT SPI5_IRQHandler [WEAK] EXPORT SPI6_IRQHandler [WEAK] EXPORT SAI1_IRQHandler [WEAK] EXPORT LTDC_IRQHandler [WEAK] EXPORT LTDC_ER_IRQHandler [WEAK] EXPORT DMA2D_IRQHandler [WEAK] WWDG_IRQHandler PVD_IRQHandler TAMP_STAMP_IRQHandler RTC_WKUP_IRQHandler FLASH_IRQHandler RCC_IRQHandler EXTI0_IRQHandler EXTI1_IRQHandler EXTI2_IRQHandler EXTI3_IRQHandler EXTI4_IRQHandler DMA1_Stream0_IRQHandler DMA1_Stream1_IRQHandler DMA1_Stream2_IRQHandler DMA1_Stream3_IRQHandler DMA1_Stream4_IRQHandler DMA1_Stream5_IRQHandler DMA1_Stream6_IRQHandler ADC_IRQHandler CAN1_TX_IRQHandler CAN1_RX0_IRQHandler CAN1_RX1_IRQHandler CAN1_SCE_IRQHandler EXTI9_5_IRQHandler TIM1_BRK_TIM9_IRQHandler TIM1_UP_TIM10_IRQHandler TIM1_TRG_COM_TIM11_IRQHandler TIM1_CC_IRQHandler TIM2_IRQHandler TIM3_IRQHandler TIM4_IRQHandler I2C1_EV_IRQHandler I2C1_ER_IRQHandler I2C2_EV_IRQHandler I2C2_ER_IRQHandler SPI1_IRQHandler SPI2_IRQHandler USART1_IRQHandler USART2_IRQHandler USART3_IRQHandler EXTI15_10_IRQHandler RTC_Alarm_IRQHandler OTG_FS_WKUP_IRQHandler TIM8_BRK_TIM12_IRQHandler TIM8_UP_TIM13_IRQHandler TIM8_TRG_COM_TIM14_IRQHandler TIM8_CC_IRQHandler DMA1_Stream7_IRQHandler FMC_IRQHandler SDIO_IRQHandler TIM5_IRQHandler SPI3_IRQHandler UART4_IRQHandler UART5_IRQHandler TIM6_DAC_IRQHandler TIM7_IRQHandler DMA2_Stream0_IRQHandler DMA2_Stream1_IRQHandler DMA2_Stream2_IRQHandler DMA2_Stream3_IRQHandler DMA2_Stream4_IRQHandler ETH_IRQHandler ETH_WKUP_IRQHandler CAN2_TX_IRQHandler CAN2_RX0_IRQHandler CAN2_RX1_IRQHandler CAN2_SCE_IRQHandler OTG_FS_IRQHandler DMA2_Stream5_IRQHandler DMA2_Stream6_IRQHandler DMA2_Stream7_IRQHandler USART6_IRQHandler I2C3_EV_IRQHandler I2C3_ER_IRQHandler OTG_HS_EP1_OUT_IRQHandler OTG_HS_EP1_IN_IRQHandler OTG_HS_WKUP_IRQHandler OTG_HS_IRQHandler DCMI_IRQHandler CRYP_IRQHandler HASH_RNG_IRQHandler FPU_IRQHandler UART7_IRQHandler UART8_IRQHandler SPI4_IRQHandler SPI5_IRQHandler SPI6_IRQHandler SAI1_IRQHandler LTDC_IRQHandler LTDC_ER_IRQHandler DMA2D_IRQHandler B . ENDP RCC EQU 0x40023800 GPIOA EQU 0x40020000 GPIOC EQU 0x40020800 GPIOG EQU 0x40021800 I2C3 EQU 0x40005C00 FLASH EQU 0x40023C00 ENTRY Main PROC LDR R0, =RCC ;PLL çikis frekansi 168Mhz MOVW R1, #0x5408 MOVT R1, #0x0740 STR R1, [R0, #0x04] ;HSE aktif, PLL aktif MOVT R1, #0x0101 LDR R2, [R0, #0x00] ORR R1, R1, R2 STR R1, [R0, #0x00] ;Prefetch Aktif, 5WS LDR R0, =FLASH MOVW R1, #0x0705 STR R1, [R0, #0x00] ;Çekirdek clock kaynagi : PLL LDR R0, =RCC MOV R1, #0x02 STR R1, [R0, #0x08] ;APB1 = 84 Mhz, APB2 = 42 Mhz LDR R0, =RCC LDR R1, [R0, #0x08] MOV R2, #0x940A ORR R1, R1, R2 STR R1, [R0, #0x08] ;AHB1 üzerindeki GPIOA, GPIOC ve GPIOG clock hatlarini aktiflestir LDR R1, [R0, #0x30] ORR R1, R1, #0x0055 STR R1, [R0, #0x30] ;APB1 üzerindeki I2C3 clock hattini aktiflestir LDR R1, [R0, #0x40] MOV R2, #0x0003 MOVT R2, #0x0080 ORR R1, R2 STR R1, [R0, #0x40] ;GPIOA portunun 8. bacagini alternate function olarak tanimla LDR R0, =GPIOA LDR R1, [R0] ORR R1, R1, #0x00020000 STR R1, [R0] ;GPIOA portunun 8. bacagini Open-Drain olarak tanimla LDR R1, [R0, #0x04] ORR R1, R1, #0x00000100 STR R1, [R0, #0x04] ;GPIOA portunun 8. bacagindaki Pull-Up direncini aktiflestir LDR R1, [R0, #0x0C] ORR R1, R1, #0x00010000 STR R1, [R0, #0x0C] ;GPIOA portunun 8. bacagini I2C donanimina bagla LDR R1, [R0, #0x24] ORR R1, R1, #0x00000004 STR R1, [R0, #0x24] ;GPIOC portunun 9. bacagini alternate function olarak tanimla LDR R0, =GPIOC LDR R1, [R0] ORR R1, R1, #0x00080000 STR R1, [R0] ;GPIOC portunun 9. bacagini Open-Drain olarak tanimla LDR R1, [R0, #0x04] ORR R1, R1, #0x00000200 STR R1, [R0, #0x04] ;GPIOC portunun 9. bacagindaki Pull-Up direncini aktiflestir LDR R1, [R0, #0x0C] ORR R1, R1, #0x00040000 STR R1, [R0, #0x0C] ;GPIOC portunun 9. bacagini I2C donanimina bagla LDR R1, [R0, #0x24] ORR R1, R1, #0x00000040 STR R1, [R0, #0x24] ;GPIOG portunun 13. ve 14. bacaklari çikis olarak tanimla LDR R0, =GPIOG LDR R1, [R0] ORR R1, #0x14000000 STR R1, [R0] ;I2C3 donanimini 42Mhz de çalisacak sekilde ayarla LDR R0, =I2C3 LDR R1, [R0, #0x04] ORR R1, R1, #0x0000002A STR R1, [R0, #0x04] ;I2C3 donanimini 7bit adresleme ile çalistir MOV R1, #0x4000 STR R1, [R0, #0x08] ;I2C3 donaniminin clock ayarini yap MOV R1, #0x80D2; STRH R1, [R0, #0x1C] ;I2C3 donaniminin maksimum rise zamanini ayarla MOV R1, #0x2B; STRH R1, [R0, #0x20] ;I2C3 donanimini aktif et LDR R1, [R0, #0x00] ORR R1, R1, #0x0001 STR R1, [R0, #0x00] ;I2C3 donanimina ACK gönderimini aktif et LDR R1, [R0, #0x00] ORR R1, R1, #0x00000400 STR R1, [R0, #0X00] MOV R5, #0x00 Butonlari_oku MOVT R8, #0x001A Bekle SUBS R8, R8, #1 BNE Bekle LDR R0, =I2C3 ;I2C3 donaniminda ACK aktif LDRH R1, [R0, #0x00] ORR R1, R1, #0x00000400 STRH R1, [R0, #0x00] ;Start biti gönder LDRH R1, [R0, #0x00] ORR R1, R1, #0x00000100 STRH R1, [R0, #0x00] ;Start_bitinin_gonderilmesini_bekle Start_bitinin_gonderilmesini_bekle LDRH R1, [R0, #0x14] LDRH R2, [R0, #0x18] LSLS R2, R2, #16 ORR R3, R1, R2 AND R3, R3, #0x00FFFFFF MOV R4, #0x0001 MOVT R4, #0x0003 AND R3, R3, R4 CMP R3, R4 BNE Start_bitinin_gonderilmesini_bekle ;Slave cihazin adresini gönder MOV R1, #0x02 STRH R1, [R0, #0x10] ;Slave cihazdan ACK bekle ACK_Bekle LDRH R1, [R0, #0x14] LDRH R2, [R0, #0x18] LSLS R2, R2, #16 ORR R3, R1, R2 AND R3, R3, #0x00FFFFFF MOV R4, #0x0082 MOVT R4, #0x0007 AND R3, R3, R4 CMP R3, R4 BNE ACK_Bekle ;Okunmak istenen registerin adres bilgisini gönder STRH R5, [R0, #0x10] ;Verinin gönderilmesini bekle Verinin_gonderilmesini_bekle LDRH R1, [R0, #0x14] LDRH R2, [R0, #0x18] LSLS R2, R2, #16 ORR R3, R1, R2 AND R3, R3, #0x00FFFFFF MOV R4, #0x0084 MOVT R4, #0x0007 AND R3, R3, R4 CMP R3, R4 BNE Verinin_gonderilmesini_bekle ;Tekrar start biti gönder LDRH R1, [R0, #0x00] ORR R1, R1, #0x0100 STRH R1, [R0, #0X00] ;Start_bitinin_gonderilmesini_bekle Start_bitinin_gonderilmesini_bekle1 LDRH R1, [R0, #0x14] LDRH R2, [R0, #0x18] LSLS R2, R2, #16 ORR R3, R1, R2 AND R3, R3, #0x00FFFFFF MOV R4, #0x0001 MOVT R4, #0x0003 AND R3, R3, R4 CMP R3, R4 BNE Start_bitinin_gonderilmesini_bekle1 ;Slave cihazin adresini gönder (0. bit okuma icin '1') MOV R1, #0x03 STRH R1, [R0, #0x10] ;Verinin gönderilmesini bekle Verinin_gonderilmesini_bekle1 LDRH R1, [R0, #0x14] LDRH R2, [R0, #0x18] LSLS R2, R2, #16 ORR R3, R1, R2 AND R3, R3, #0x00FFFFFF MOV R4, #0x0002 MOVT R4, #0x0003 AND R3, R3, R4 CMP R3, R4 BNE Verinin_gonderilmesini_bekle1 ;ACK gönderimi kapat LDRH R1, [R0, #0x00] MOV R2, #0xFBFF AND R1, R1, R2 STRH R1, [R0, #0x00] ;Okunmak istenen registere ait verinin gelmesini bekle Veri_gelmesini_bekle LDRH R1, [R0, #0x14] LDRH R2, [R0, #0x18] LSLS R2, R2, #16 ORR R3, R1, R2 AND R3, R3, #0x00FFFFFF MOV R4, #0x0040 MOVT R4, #0x0003 AND R3, R3, R4 CMP R3, R4 BNE Veri_gelmesini_bekle ;Stop biti gönder LDR R1, [R0, #0x00] ORR R1, R1, #0x00000200 STR R1, [R0, #0x00] ;Gelen veriyi al (R1) LDRH R1, [R0, #0x10] ;Gelen veri 0 ise Led0'a, 1 ise Led1'e dallan CMP R5, #0x00 BLEQ Led0 CMP R5, #0x01 BLEQ Led1 ;Daha sonra Okunmak istenen register adresini degistir CMP R5, #0x00 MOVEQ R5, #0x01 MOVNE R5, #0x00 ;Basa dön B Butonlari_oku ;Gelen veri(R1) 0x01 ise ledi yak, 0x00 ise ledi söndür Led0 LDR R0, =GPIOG MOV R2, #0x2000 CMP R1, #0x01 STREQ R2, [R0, #0x18] BXEQ lr LSLS R2, R2, #16 STR R2, [R0, #0x18] BX lr ;Gelen veri(R1) 0x01 ise ledi yak, 0x00 ise ledi söndür Led1 LDR R0, =GPIOG MOV R2, #0x4000 CMP R1, #0x01 STREQ R2, [R0, #0x18] BXEQ lr LSLS R2, R2, #16 STR R2, [R0, #0x18] BX lr B . ENDP ALIGN END