From 7400fe9569778d8f9b1527f3f801e0364c539161 Mon Sep 17 00:00:00 2001 From: Trumeet Date: Sat, 22 Jan 2022 15:54:15 -0800 Subject: Add STM32F429ZIT6 Hello World --- STM32F429ZIT6_HelloWorld/CMakeLists.txt | 23 ++ STM32F429ZIT6_HelloWorld/README.md | 11 + STM32F429ZIT6_HelloWorld/boot.S | 34 +++ STM32F429ZIT6_HelloWorld/core.S | 433 ++++++++++++++++++++++++++++++++ STM32F429ZIT6_HelloWorld/linker.ld | 65 +++++ STM32F429ZIT6_HelloWorld/main.c | 28 +++ 6 files changed, 594 insertions(+) create mode 100644 STM32F429ZIT6_HelloWorld/CMakeLists.txt create mode 100644 STM32F429ZIT6_HelloWorld/README.md create mode 100644 STM32F429ZIT6_HelloWorld/boot.S create mode 100644 STM32F429ZIT6_HelloWorld/core.S create mode 100644 STM32F429ZIT6_HelloWorld/linker.ld create mode 100644 STM32F429ZIT6_HelloWorld/main.c diff --git a/STM32F429ZIT6_HelloWorld/CMakeLists.txt b/STM32F429ZIT6_HelloWorld/CMakeLists.txt new file mode 100644 index 0000000..8f02a0b --- /dev/null +++ b/STM32F429ZIT6_HelloWorld/CMakeLists.txt @@ -0,0 +1,23 @@ +cmake_minimum_required(VERSION 3.21) +project(STM32 C ASM) + +set(CMAKE_VERBOSE_MAKEFILE ON) + +set(CMAKE_C_COMPILER arm-none-eabi-gcc) +set(CMAKE_CXX_COMPILER arm-none-eabi-g++) +set(CMAKE_ASM_COMPILER arm-none-eabi-gcc) +set(CMAKE_AR arm-none-eabi-ar) +set(CMAKE_OBJCOPY arm-none-eabi-objcopy) +set(CMAKE_OBJDUMP arm-none-eabi-objdump) +set(SIZE arm-none-eabi-size) + +set(CMAKE_C_STANDARD 99) +set(CMAKE_SYSTEM_PROCESSOR cortex-m4) + +add_link_options(-Wl,--print-memory-usage,-Map=${PROJECT_BINARY_DIR}/${PROJECT_NAME}.map) +add_link_options(--specs=nosys.specs) +add_link_options(-mcpu=${CMAKE_SYSTEM_PROCESSOR} -mthumb -nostdlib) +add_link_options(-T ${CMAKE_SOURCE_DIR}/linker.ld) +add_compile_options(-mcpu=${CMAKE_SYSTEM_PROCESSOR} -mthumb) +add_compile_options(-O0) +add_executable(STM32 linker.ld core.S boot.S main.c) diff --git a/STM32F429ZIT6_HelloWorld/README.md b/STM32F429ZIT6_HelloWorld/README.md new file mode 100644 index 0000000..72ea134 --- /dev/null +++ b/STM32F429ZIT6_HelloWorld/README.md @@ -0,0 +1,11 @@ +# STM32F429ZIT6U Hello World + +Yeah, it just turns LEDs on. + +References: + +* [Bare Metal STM32 Programming Series](https://vivonomicon.com/2018/04/20/bare-metal-stm32-programming-part-2-making-it-to-main/) + +* STM32F429ZIT6U Reference Manual and Datasheet + +* Nucleo F429ZI Manual diff --git a/STM32F429ZIT6_HelloWorld/boot.S b/STM32F429ZIT6_HelloWorld/boot.S new file mode 100644 index 0000000..81e0a47 --- /dev/null +++ b/STM32F429ZIT6_HelloWorld/boot.S @@ -0,0 +1,34 @@ +.syntax unified +.cpu cortex-m4 +.fpu vfp +.thumb +.global reset_handler +.type reset_handler, %function +reset_handler: + LDR r0, =_estack + MOV sp, r0 + MOVS r0, #0 + LDR r1, =_sdata + LDR r2, =_edata + LDR r3, =_sidata + B copy_sidata_loop + copy_sidata: + LDR r4, [r3, r0] + STR r4, [r1, r0] + ADDS r0, r0, #4 + copy_sidata_loop: + ADDS r4, r0, r1 + CMP r4, r2 + BCC copy_sidata + MOVS r0, #0 + LDR r1, =_sbss + LDR r2, =_ebss + B reset_bss_loop + reset_bss: + STR r0, [r1] + ADDS r1, r1, #4 + reset_bss_loop: + CMP r1, r2 + BCC reset_bss + B main +.size reset_handler, .-reset_handler \ No newline at end of file diff --git a/STM32F429ZIT6_HelloWorld/core.S b/STM32F429ZIT6_HelloWorld/core.S new file mode 100644 index 0000000..da5b90e --- /dev/null +++ b/STM32F429ZIT6_HelloWorld/core.S @@ -0,0 +1,433 @@ +.syntax unified +.cpu cortex-m4 +.fpu vfp +.thumb + +.global vtable +.global default_interrupt_handler + +.type vtable, %object +.section .vector_table,"a",%progbits +vtable: + .word _estack + .word reset_handler + + .word NMI_Handler + .word HardFault_Handler + .word MemManage_Handler + .word BusFault_Handler + .word UsageFault_Handler + .word 0 + .word 0 + .word 0 + .word 0 + .word SVC_Handler + .word DebugMon_Handler + .word 0 + .word PendSV_Handler + .word SysTick_Handler + + /* External Interrupts */ + .word WWDG_IRQHandler /* Window WatchDog */ + .word PVD_IRQHandler /* PVD through EXTI Line detection */ + .word TAMP_STAMP_IRQHandler /* Tamper and TimeStamps through the EXTI line */ + .word RTC_WKUP_IRQHandler /* RTC Wakeup through the EXTI line */ + .word FLASH_IRQHandler /* FLASH */ + .word RCC_IRQHandler /* RCC */ + .word EXTI0_IRQHandler /* EXTI Line0 */ + .word EXTI1_IRQHandler /* EXTI Line1 */ + .word EXTI2_IRQHandler /* EXTI Line2 */ + .word EXTI3_IRQHandler /* EXTI Line3 */ + .word EXTI4_IRQHandler /* EXTI Line4 */ + .word DMA1_Stream0_IRQHandler /* DMA1 Stream 0 */ + .word DMA1_Stream1_IRQHandler /* DMA1 Stream 1 */ + .word DMA1_Stream2_IRQHandler /* DMA1 Stream 2 */ + .word DMA1_Stream3_IRQHandler /* DMA1 Stream 3 */ + .word DMA1_Stream4_IRQHandler /* DMA1 Stream 4 */ + .word DMA1_Stream5_IRQHandler /* DMA1 Stream 5 */ + .word DMA1_Stream6_IRQHandler /* DMA1 Stream 6 */ + .word ADC_IRQHandler /* ADC1, ADC2 and ADC3s */ + .word CAN1_TX_IRQHandler /* CAN1 TX */ + .word CAN1_RX0_IRQHandler /* CAN1 RX0 */ + .word CAN1_RX1_IRQHandler /* CAN1 RX1 */ + .word CAN1_SCE_IRQHandler /* CAN1 SCE */ + .word EXTI9_5_IRQHandler /* External Line[9:5]s */ + .word TIM1_BRK_TIM9_IRQHandler /* TIM1 Break and TIM9 */ + .word TIM1_UP_TIM10_IRQHandler /* TIM1 Update and TIM10 */ + .word TIM1_TRG_COM_TIM11_IRQHandler /* TIM1 Trigger and Commutation and TIM11 */ + .word TIM1_CC_IRQHandler /* TIM1 Capture Compare */ + .word TIM2_IRQHandler /* TIM2 */ + .word TIM3_IRQHandler /* TIM3 */ + .word TIM4_IRQHandler /* TIM4 */ + .word I2C1_EV_IRQHandler /* I2C1 Event */ + .word I2C1_ER_IRQHandler /* I2C1 Error */ + .word I2C2_EV_IRQHandler /* I2C2 Event */ + .word I2C2_ER_IRQHandler /* I2C2 Error */ + .word SPI1_IRQHandler /* SPI1 */ + .word SPI2_IRQHandler /* SPI2 */ + .word USART1_IRQHandler /* USART1 */ + .word USART2_IRQHandler /* USART2 */ + .word USART3_IRQHandler /* USART3 */ + .word EXTI15_10_IRQHandler /* External Line[15:10]s */ + .word RTC_Alarm_IRQHandler /* RTC Alarm (A and B) through EXTI Line */ + .word OTG_FS_WKUP_IRQHandler /* USB OTG FS Wakeup through EXTI line */ + .word TIM8_BRK_TIM12_IRQHandler /* TIM8 Break and TIM12 */ + .word TIM8_UP_TIM13_IRQHandler /* TIM8 Update and TIM13 */ + .word TIM8_TRG_COM_TIM14_IRQHandler /* TIM8 Trigger and Commutation and TIM14 */ + .word TIM8_CC_IRQHandler /* TIM8 Capture Compare */ + .word DMA1_Stream7_IRQHandler /* DMA1 Stream7 */ + .word FMC_IRQHandler /* FMC */ + .word SDIO_IRQHandler /* SDIO */ + .word TIM5_IRQHandler /* TIM5 */ + .word SPI3_IRQHandler /* SPI3 */ + .word UART4_IRQHandler /* UART4 */ + .word UART5_IRQHandler /* UART5 */ + .word TIM6_DAC_IRQHandler /* TIM6 and DAC1&2 underrun errors */ + .word TIM7_IRQHandler /* TIM7 */ + .word DMA2_Stream0_IRQHandler /* DMA2 Stream 0 */ + .word DMA2_Stream1_IRQHandler /* DMA2 Stream 1 */ + .word DMA2_Stream2_IRQHandler /* DMA2 Stream 2 */ + .word DMA2_Stream3_IRQHandler /* DMA2 Stream 3 */ + .word DMA2_Stream4_IRQHandler /* DMA2 Stream 4 */ + .word ETH_IRQHandler /* Ethernet */ + .word ETH_WKUP_IRQHandler /* Ethernet Wakeup through EXTI line */ + .word CAN2_TX_IRQHandler /* CAN2 TX */ + .word CAN2_RX0_IRQHandler /* CAN2 RX0 */ + .word CAN2_RX1_IRQHandler /* CAN2 RX1 */ + .word CAN2_SCE_IRQHandler /* CAN2 SCE */ + .word OTG_FS_IRQHandler /* USB OTG FS */ + .word DMA2_Stream5_IRQHandler /* DMA2 Stream 5 */ + .word DMA2_Stream6_IRQHandler /* DMA2 Stream 6 */ + .word DMA2_Stream7_IRQHandler /* DMA2 Stream 7 */ + .word USART6_IRQHandler /* USART6 */ + .word I2C3_EV_IRQHandler /* I2C3 event */ + .word I2C3_ER_IRQHandler /* I2C3 error */ + .word OTG_HS_EP1_OUT_IRQHandler /* USB OTG HS End Point 1 Out */ + .word OTG_HS_EP1_IN_IRQHandler /* USB OTG HS End Point 1 In */ + .word OTG_HS_WKUP_IRQHandler /* USB OTG HS Wakeup through EXTI */ + .word OTG_HS_IRQHandler /* USB OTG HS */ + .word DCMI_IRQHandler /* DCMI */ + .word 0 /* Reserved */ + .word HASH_RNG_IRQHandler /* Hash and Rng */ + .word FPU_IRQHandler /* FPU */ + .word UART7_IRQHandler /* UART7 */ + .word UART8_IRQHandler /* UART8 */ + .word SPI4_IRQHandler /* SPI4 */ + .word SPI5_IRQHandler /* SPI5 */ + .word SPI6_IRQHandler /* SPI6 */ + .word SAI1_IRQHandler /* SAI1 */ + .word LTDC_IRQHandler /* LTDC_IRQHandler */ + .word LTDC_ER_IRQHandler /* LTDC_ER_IRQHandler */ + .word DMA2D_IRQHandler /* DMA2D */ + +/******************************************************************************* +* +* Provide weak aliases for each Exception handler to the default_interrupt_handler. +* As they are weak aliases, any function with the same name will override +* this definition. +* +*******************************************************************************/ + .weak NMI_Handler + .thumb_set NMI_Handler,default_interrupt_handler + + .weak HardFault_Handler + .thumb_set HardFault_Handler,default_interrupt_handler + + .weak MemManage_Handler + .thumb_set MemManage_Handler,default_interrupt_handler + + .weak BusFault_Handler + .thumb_set BusFault_Handler,default_interrupt_handler + + .weak UsageFault_Handler + .thumb_set UsageFault_Handler,default_interrupt_handler + + .weak SVC_Handler + .thumb_set SVC_Handler,default_interrupt_handler + + .weak DebugMon_Handler + .thumb_set DebugMon_Handler,default_interrupt_handler + + .weak PendSV_Handler + .thumb_set PendSV_Handler,default_interrupt_handler + + .weak SysTick_Handler + .thumb_set SysTick_Handler,default_interrupt_handler + + .weak WWDG_IRQHandler + .thumb_set WWDG_IRQHandler,default_interrupt_handler + + .weak PVD_IRQHandler + .thumb_set PVD_IRQHandler,default_interrupt_handler + + .weak TAMP_STAMP_IRQHandler + .thumb_set TAMP_STAMP_IRQHandler,default_interrupt_handler + + .weak RTC_WKUP_IRQHandler + .thumb_set RTC_WKUP_IRQHandler,default_interrupt_handler + + .weak FLASH_IRQHandler + .thumb_set FLASH_IRQHandler,default_interrupt_handler + + .weak RCC_IRQHandler + .thumb_set RCC_IRQHandler,default_interrupt_handler + + .weak EXTI0_IRQHandler + .thumb_set EXTI0_IRQHandler,default_interrupt_handler + + .weak EXTI1_IRQHandler + .thumb_set EXTI1_IRQHandler,default_interrupt_handler + + .weak EXTI2_IRQHandler + .thumb_set EXTI2_IRQHandler,default_interrupt_handler + + .weak EXTI3_IRQHandler + .thumb_set EXTI3_IRQHandler,default_interrupt_handler + + .weak EXTI4_IRQHandler + .thumb_set EXTI4_IRQHandler,default_interrupt_handler + + .weak DMA1_Stream0_IRQHandler + .thumb_set DMA1_Stream0_IRQHandler,default_interrupt_handler + + .weak DMA1_Stream1_IRQHandler + .thumb_set DMA1_Stream1_IRQHandler,default_interrupt_handler + + .weak DMA1_Stream2_IRQHandler + .thumb_set DMA1_Stream2_IRQHandler,default_interrupt_handler + + .weak DMA1_Stream3_IRQHandler + .thumb_set DMA1_Stream3_IRQHandler,default_interrupt_handler + + .weak DMA1_Stream4_IRQHandler + .thumb_set DMA1_Stream4_IRQHandler,default_interrupt_handler + + .weak DMA1_Stream5_IRQHandler + .thumb_set DMA1_Stream5_IRQHandler,default_interrupt_handler + + .weak DMA1_Stream6_IRQHandler + .thumb_set DMA1_Stream6_IRQHandler,default_interrupt_handler + + .weak ADC_IRQHandler + .thumb_set ADC_IRQHandler,default_interrupt_handler + + .weak CAN1_TX_IRQHandler + .thumb_set CAN1_TX_IRQHandler,default_interrupt_handler + + .weak CAN1_RX0_IRQHandler + .thumb_set CAN1_RX0_IRQHandler,default_interrupt_handler + + .weak CAN1_RX1_IRQHandler + .thumb_set CAN1_RX1_IRQHandler,default_interrupt_handler + + .weak CAN1_SCE_IRQHandler + .thumb_set CAN1_SCE_IRQHandler,default_interrupt_handler + + .weak EXTI9_5_IRQHandler + .thumb_set EXTI9_5_IRQHandler,default_interrupt_handler + + .weak TIM1_BRK_TIM9_IRQHandler + .thumb_set TIM1_BRK_TIM9_IRQHandler,default_interrupt_handler + + .weak TIM1_UP_TIM10_IRQHandler + .thumb_set TIM1_UP_TIM10_IRQHandler,default_interrupt_handler + + .weak TIM1_TRG_COM_TIM11_IRQHandler + .thumb_set TIM1_TRG_COM_TIM11_IRQHandler,default_interrupt_handler + + .weak TIM1_CC_IRQHandler + .thumb_set TIM1_CC_IRQHandler,default_interrupt_handler + + .weak TIM2_IRQHandler + .thumb_set TIM2_IRQHandler,default_interrupt_handler + + .weak TIM3_IRQHandler + .thumb_set TIM3_IRQHandler,default_interrupt_handler + + .weak TIM4_IRQHandler + .thumb_set TIM4_IRQHandler,default_interrupt_handler + + .weak I2C1_EV_IRQHandler + .thumb_set I2C1_EV_IRQHandler,default_interrupt_handler + + .weak I2C1_ER_IRQHandler + .thumb_set I2C1_ER_IRQHandler,default_interrupt_handler + + .weak I2C2_EV_IRQHandler + .thumb_set I2C2_EV_IRQHandler,default_interrupt_handler + + .weak I2C2_ER_IRQHandler + .thumb_set I2C2_ER_IRQHandler,default_interrupt_handler + + .weak SPI1_IRQHandler + .thumb_set SPI1_IRQHandler,default_interrupt_handler + + .weak SPI2_IRQHandler + .thumb_set SPI2_IRQHandler,default_interrupt_handler + + .weak USART1_IRQHandler + .thumb_set USART1_IRQHandler,default_interrupt_handler + + .weak USART2_IRQHandler + .thumb_set USART2_IRQHandler,default_interrupt_handler + + .weak USART3_IRQHandler + .thumb_set USART3_IRQHandler,default_interrupt_handler + + .weak EXTI15_10_IRQHandler + .thumb_set EXTI15_10_IRQHandler,default_interrupt_handler + + .weak RTC_Alarm_IRQHandler + .thumb_set RTC_Alarm_IRQHandler,default_interrupt_handler + + .weak OTG_FS_WKUP_IRQHandler + .thumb_set OTG_FS_WKUP_IRQHandler,default_interrupt_handler + + .weak TIM8_BRK_TIM12_IRQHandler + .thumb_set TIM8_BRK_TIM12_IRQHandler,default_interrupt_handler + + .weak TIM8_UP_TIM13_IRQHandler + .thumb_set TIM8_UP_TIM13_IRQHandler,default_interrupt_handler + + .weak TIM8_TRG_COM_TIM14_IRQHandler + .thumb_set TIM8_TRG_COM_TIM14_IRQHandler,default_interrupt_handler + + .weak TIM8_CC_IRQHandler + .thumb_set TIM8_CC_IRQHandler,default_interrupt_handler + + .weak DMA1_Stream7_IRQHandler + .thumb_set DMA1_Stream7_IRQHandler,default_interrupt_handler + + .weak FMC_IRQHandler + .thumb_set FMC_IRQHandler,default_interrupt_handler + + .weak SDIO_IRQHandler + .thumb_set SDIO_IRQHandler,default_interrupt_handler + + .weak TIM5_IRQHandler + .thumb_set TIM5_IRQHandler,default_interrupt_handler + + .weak SPI3_IRQHandler + .thumb_set SPI3_IRQHandler,default_interrupt_handler + + .weak UART4_IRQHandler + .thumb_set UART4_IRQHandler,default_interrupt_handler + + .weak UART5_IRQHandler + .thumb_set UART5_IRQHandler,default_interrupt_handler + + .weak TIM6_DAC_IRQHandler + .thumb_set TIM6_DAC_IRQHandler,default_interrupt_handler + + .weak TIM7_IRQHandler + .thumb_set TIM7_IRQHandler,default_interrupt_handler + + .weak DMA2_Stream0_IRQHandler + .thumb_set DMA2_Stream0_IRQHandler,default_interrupt_handler + + .weak DMA2_Stream1_IRQHandler + .thumb_set DMA2_Stream1_IRQHandler,default_interrupt_handler + + .weak DMA2_Stream2_IRQHandler + .thumb_set DMA2_Stream2_IRQHandler,default_interrupt_handler + + .weak DMA2_Stream3_IRQHandler + .thumb_set DMA2_Stream3_IRQHandler,default_interrupt_handler + + .weak DMA2_Stream4_IRQHandler + .thumb_set DMA2_Stream4_IRQHandler,default_interrupt_handler + + .weak ETH_IRQHandler + .thumb_set ETH_IRQHandler,default_interrupt_handler + + .weak ETH_WKUP_IRQHandler + .thumb_set ETH_WKUP_IRQHandler,default_interrupt_handler + + .weak CAN2_TX_IRQHandler + .thumb_set CAN2_TX_IRQHandler,default_interrupt_handler + + .weak CAN2_RX0_IRQHandler + .thumb_set CAN2_RX0_IRQHandler,default_interrupt_handler + + .weak CAN2_RX1_IRQHandler + .thumb_set CAN2_RX1_IRQHandler,default_interrupt_handler + + .weak CAN2_SCE_IRQHandler + .thumb_set CAN2_SCE_IRQHandler,default_interrupt_handler + + .weak OTG_FS_IRQHandler + .thumb_set OTG_FS_IRQHandler,default_interrupt_handler + + .weak DMA2_Stream5_IRQHandler + .thumb_set DMA2_Stream5_IRQHandler,default_interrupt_handler + + .weak DMA2_Stream6_IRQHandler + .thumb_set DMA2_Stream6_IRQHandler,default_interrupt_handler + + .weak DMA2_Stream7_IRQHandler + .thumb_set DMA2_Stream7_IRQHandler,default_interrupt_handler + + .weak USART6_IRQHandler + .thumb_set USART6_IRQHandler,default_interrupt_handler + + .weak I2C3_EV_IRQHandler + .thumb_set I2C3_EV_IRQHandler,default_interrupt_handler + + .weak I2C3_ER_IRQHandler + .thumb_set I2C3_ER_IRQHandler,default_interrupt_handler + + .weak OTG_HS_EP1_OUT_IRQHandler + .thumb_set OTG_HS_EP1_OUT_IRQHandler,default_interrupt_handler + + .weak OTG_HS_EP1_IN_IRQHandler + .thumb_set OTG_HS_EP1_IN_IRQHandler,default_interrupt_handler + + .weak OTG_HS_WKUP_IRQHandler + .thumb_set OTG_HS_WKUP_IRQHandler,default_interrupt_handler + + .weak OTG_HS_IRQHandler + .thumb_set OTG_HS_IRQHandler,default_interrupt_handler + + .weak DCMI_IRQHandler + .thumb_set DCMI_IRQHandler,default_interrupt_handler + + .weak HASH_RNG_IRQHandler + .thumb_set HASH_RNG_IRQHandler,default_interrupt_handler + + .weak FPU_IRQHandler + .thumb_set FPU_IRQHandler,default_interrupt_handler + + .weak UART7_IRQHandler + .thumb_set UART7_IRQHandler,default_interrupt_handler + + .weak UART8_IRQHandler + .thumb_set UART8_IRQHandler,default_interrupt_handler + + .weak SPI4_IRQHandler + .thumb_set SPI4_IRQHandler,default_interrupt_handler + + .weak SPI5_IRQHandler + .thumb_set SPI5_IRQHandler,default_interrupt_handler + + .weak SPI6_IRQHandler + .thumb_set SPI6_IRQHandler,default_interrupt_handler + + .weak SAI1_IRQHandler + .thumb_set SAI1_IRQHandler,default_interrupt_handler + + .weak LTDC_IRQHandler + .thumb_set LTDC_IRQHandler,default_interrupt_handler + + .weak LTDC_ER_IRQHandler + .thumb_set LTDC_ER_IRQHandler,default_interrupt_handler + + .weak DMA2D_IRQHandler + .thumb_set DMA2D_IRQHandler,default_interrupt_handler + +.size vtable, .-vtable + +.section .text.default_interrupt_handler,"ax",%progbits +default_interrupt_handler: + default_interrupt_loop: + B default_interrupt_loop +.size default_interrupt_handler, .-default_interrupt_handler \ No newline at end of file diff --git a/STM32F429ZIT6_HelloWorld/linker.ld b/STM32F429ZIT6_HelloWorld/linker.ld new file mode 100644 index 0000000..c99ad1b --- /dev/null +++ b/STM32F429ZIT6_HelloWorld/linker.ld @@ -0,0 +1,65 @@ +ENTRY(reset_handler) +_estack = 0x200030800; + +MEMORY +{ + FLASH ( rw ) : ORIGIN = 0x08000000, LENGTH = 2048k + RAM ( rxw ) : ORIGIN = 0x20000000, LENGTH = 196k +} + +SECTIONS +{ + .vector_table : + { + . = ALIGN(4); + KEEP (*(.vector_table)) + . = ALIGN(4); + } >FLASH + + .text : + { + . = ALIGN(4); + *(.text) + *(.text*) + . = ALIGN(4); + } >FLASH + + .rodata : + { + . = ALIGN(4); + *(.rodata) + *(.rodata*) + . = ALIGN(4); + } >FLASH + + _sidata = .; + .data : AT(_sidata) + { + . = ALIGN(4); + _sdata = .; + *(.data) + *(.data*) + _edata = .; + . = ALIGN(4); + } >RAM + + .bss : + { + . = ALIGN(4); + _sbss = .; + *(.bss) + *(.bss*) + *(COMMON) + _ebss = .; + . = ALIGN(4); + } >RAM + + .dynamic_allocations : + { + . = ALIGN(4); + _ssystem_ram = .; + . = . + 0x400; + . = ALIGN(4); + _esystem_ram = .; + } >RAM +} \ No newline at end of file diff --git a/STM32F429ZIT6_HelloWorld/main.c b/STM32F429ZIT6_HelloWorld/main.c new file mode 100644 index 0000000..0025c55 --- /dev/null +++ b/STM32F429ZIT6_HelloWorld/main.c @@ -0,0 +1,28 @@ +#include +#include + +uint32_t *RCC = (uint32_t *) 0x40023800; +uint32_t *AHB1ENR = (uint32_t *) 0x40023830; +uint32_t *GPIOB_MODER = (uint32_t *) 0x40020400; +uint32_t *GPIOB_ODR = (uint32_t *) 0x40020414; +uint32_t *GPIOB = (uint32_t *) 0x40020400; +uint32_t *GPIOA_MODER = (uint32_t *) 0x40020000; +uint32_t *GPIOA = (uint32_t *) 0x40020000; + +#define set(reg, bit, val) *(reg) ^= (-(val) ^ *(reg)) & (1UL << (bit)) + +int main(void) { + set(AHB1ENR, 1 /* GPIOBEN */, true); + set(AHB1ENR, 0 /* GPIOAEN */, true); + + set(GPIOB_MODER, 0 /* MODER0 */, true); + set(GPIOB_MODER, 1 /* MODER0 */, false); + set(GPIOB_MODER, 14 /* MODER7 */, true); + set(GPIOB_MODER, 15 /* MODER7 */, false); + set(GPIOB_MODER, 28 /* MODER14 */, true); + set(GPIOB_MODER, 29 /* MODER14 */, false); + + set(GPIOB_ODR, 0 /* ODR0 */, true); + set(GPIOB_ODR, 7 /* ODR7 */, true); + set(GPIOB_ODR, 14 /* ODR14 */, true); +} -- cgit v1.2.3