66 lines
1.5 KiB
ReStructuredText
66 lines
1.5 KiB
ReStructuredText
======
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GD32F4
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======
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The devices of GD32F4xx series are 32-bit general-purpose microcontrollers
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based on the Cortex-M4 processor. The Cortex-M4 processor includes three
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AHB buses known as I-Code, D-Code and System buses. All memory accesses of
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the Cortex-M4 processor are executed on the three buses according to the
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different purposes and the target memory spaces. The memory organization
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uses a Harvard architecture, pre-defined memory map and up to 4 GB of
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memory space, making the system flexible and extendable.
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Supported MCUs
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==============
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TODO
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Peripheral Support
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==================
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The following list indicates peripherals now supported
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in NuttX:
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========== ======= =====
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Peripheral Support Notes
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========== ======= =====
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SYSCFG Yes
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FMC Yes
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PMU yes
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RCU Yes
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GPIO Yes
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DMA Yes
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IPA no
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EXTI Yes
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SPI Yes
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TLI no
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I2C Yes
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USART Yes
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I2S no
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SDIO yes
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ENET Yes
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========== ======= =====
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Memory
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------
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- CONFIG_RAM_SIZE - Describes the installed DRAM (SRAM in this case)
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- CONFIG_RAM_START - The start address of installed DRAM
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- CONFIG_GD32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP
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- CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
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stack. If defined, this symbol is the size of the interrupt
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stack in bytes. If not defined, the user task stacks will be
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used during interrupt handling.
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Supported Boards
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================
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.. toctree::
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:glob:
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:maxdepth: 1
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boards/*/*
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