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libopencm3
A free/libre/open-source firmware library for various ARM Cortex-M3 microcontrollers.
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| ▼CM3 Defines | Defined Constants and Types for Cortex M3 core features |
| Debugging | Macros and functions to aid in debugging |
| ▼Cortex Core Defines | libopencm3 Defined Constants and Types for the Cortex Core |
| Cortex Core Atomic support Defines | Atomic operation support |
| Cortex-M Data Watch and Trace unit. | System Control Space (SCS) => Data Watchpoint and Trace (DWT) |
| Cortex-M Flash Patch and Breakpoint (FPB) unit | |
| Cortex-M Instrumentation Trace Macrocell (ITM) | |
| ▼Cortex-M MPU Defines | libopencm3 Cortex Memory Protection Unit |
| MPU Registers | |
| MPU TYPE register fields | The MPU_TYPE register is always available, even if the MPU is not implemented |
| MPU CTRL register fields | Defines for the Control Register |
| MPU RNR register fields | Defines for the Region Number Register |
| MPU RBAR register fields | Defines for the Region Base Address Register |
| ▼MPU RASR register fields | Defines for the Region Attribute and Size Register |
| MPU RASR Attributes | Not all attributes are available on v6m |
| ▼Cortex-M NVIC Defines | libopencm3 Cortex Nested Vectored Interrupt Controller |
| NVIC Registers | |
| Cortex M0/M3/M4 System Interrupts | IRQ numbers -3 and -6 to -9 are reserved |
| User interrupts for GD32F1x0 Series | |
| ▼Cortex-M System Control Block | The System Control Block is a section of the System Control Space |
| SCB Registers | |
| SCB_CPUID Values | |
| SCB_ICSR Values | |
| SCB_VTOR Values | |
| SCB_AICR Values | |
| SCB_SCR Values | |
| SCB_CCR Values | |
| ▼Cortex-M System Control Space | The System Control Space (SCS) is a memory-mapped 4KB address space that provides 32-bit registers for configuration, status reporting and control |
| SCS Registers | |
| ▼Cortex-M SysTick Defines | libopencm3 Defined Constants and Types for the Cortex SysTick |
| ▼STK_CSR Values | |
| Clock source selection | |
| STK_RVR Values | |
| STK_CALIB Values | |
| Cortex-M Trace Port Interface Unit (TPIU) | |
| ▼Cortex Core Peripheral APIs | APIs for Cortex Core peripherals |
| DWT | libopencm3 Cortex-M Data Watchpoint and Trace unit |
| NVIC | libopencm3 Cortex Nested Vectored Interrupt Controller |
| SCB | libopencm3 Cortex-M System Control Block |
| SysTick | libopencm3 Cortex System Tick Timer |
| Coresight Registers | CoreSight Lock Status Registers and Lock Access Registers are documented for the DWT, ITM, FPB and TPIU peripherals |
| ▼Peripheral APIs | APIs for device peripherals |
| FLASH peripheral API | libopencm3 GD32F1x0 FLASH |
| RCC peripheral API | libopencm3 GD32F1x0 Reset and Clock Control |
| GPIO peripheral API | |
| GD32F1x0xx | Libraries for GigaDevices GD32F1x0xx series |
| ▼GD32F1x0xx Defines | Defined Constants and Types for the GD32F1x0xx series |
| ▼FLASH Defines | Defined Constants and Types for the GD32F1x0 Flash memory |
| FLASH Wait States | |
| ▼GPIO Defines | Defined Constants and Types for the GD32F1x0 General Purpose I/O |
| GPIO Pin Identifiers | |
| GPIO Port IDs | |
| GPIO Pin Direction and Analog/Digital Mode | |
| GPIO Output Pin Driver Type | |
| GPIO Output Pin Speed | |
| GPIO Output Pin Pullup | |
| Alternate Function Pin Selection | |
| ▼RCC Defines | Defined Constants and Types for the GD32F1x0 Reset and Clock Control |
| USBPRE: USB prescaler (RCC_CFGR[23:22]) | |
| PLLMUL: PLL multiplication factor | |
| PLLXTPRE: HSE divider for PLL entry | |
| PLLSRC: PLL entry clock source | |
| ADCPRE: ADC prescaler | |
| RCC_CFGR APBx prescale factors | These can be used for both APB1 and APB2 prescaling |
| HPRE: AHB prescaler | |
| SW: System clock switch | |
| RCC_CFGR Deprecated dividers | Older compatible definitions to ease migration |
| RCC_APB2RSTR reset values values | |
| RCC_APB1RSTR reset values values | |
| RCC_AHBENR enable values | |
| RCC_APB2ENR enable values | |
| RCC_APB1ENR enable values | |
| RCC_AHBRSTR reset values values | |
| User interrupt service routines (ISR) prototypes for GD32F1x0 Series | |
| User interrupt service routines (ISR) defaults for GD32F1x0 Series |