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| # SyterKit Common | ||
| # TinyVision | ||
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| ## start.S | ||
| TinyVision - A Tiny Linux Board / IPC / Server / Router / And so on... | ||
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| This code snippet is an ARM assembly language program that includes initialization settings and exception handlers. Here's a breakdown of its functionalities: | ||
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| 1. Initialization Settings: It sets registers and writes specific values to configure the processor's working mode, interrupt enable, etc. | ||
| - Based on Allwinner V851se / V851s3 | ||
| - Cortex-A7 Core up to 1200MHz | ||
| - RISC-V E907GC@600MHz | ||
| - 0.5Tops@int8 NPU | ||
| - Built in 64M DDR2 (V851se) / 128M DDR3L (V851s3) memory | ||
| - One TF Card Slot, Support UHS-SDR104 | ||
| - On board SD NAND | ||
| - On board USB&UART Combo | ||
| - Supports one 2-lane MIPI CSI inputs | ||
| - Supports 1 individual ISP, with maximum resolution of 2560 x 1440 | ||
| - H.264/H.265 decoding at 4096x4096 | ||
| - H.264/H.265 encoder supports 3840x2160@20fps | ||
| - Online Video encode | ||
| - RISC-V E907 RTOS Support, Based on RT-Thread + RTOS-HAL | ||
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| 2. Set Vector Table: It writes the address of the vector table to the Vector Base Address Register, which is used for handling exceptions and interrupts. | ||
| ## 购买链接 | ||
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| 3. Enable NEON/VFP Unit: It configures the processor to enable the NEON (Advanced SIMD) and VFP (Floating-Point) units. | ||
| ### TinyVision | ||
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| 4. Clear BSS Section: It zeroes out variables in the BSS section. | ||
| - [https://item.taobao.com/item.htm?&id=756255119524](https://item.taobao.com/item.htm?&id=756255119524) | ||
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| 5. Disable Interrupts: It disables FIQ and IRQ interrupts and switches the processor to SVC32 mode. | ||
| ### 配套配件 | ||
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| 6. Set Timer Frequency: It sets the timer frequency to 24M. | ||
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| 7. Call the main Function: It jumps to the main function to execute the main logic. | ||
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| ## eabi_compat.c | ||
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| This code snippet appears to be providing implementations for the functions `abort`, `raise`, and `__aeabi_unwind_cpp_pr0`. Here's a breakdown of their functionalities: | ||
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| 1. `void abort(void)`: This function creates an infinite loop, causing the program to hang indefinitely. It is typically used to indicate a critical error or unrecoverable condition in a program. | ||
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| 2. `int raise(int signum)`: This function is a placeholder and always returns 0. In standard C, this function is used to raise a signal and initiate the corresponding signal handler. However, in this implementation, it does nothing and simply returns 0. | ||
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| 3. `void __aeabi_unwind_cpp_pr0(void)`: This is a dummy function that serves as a placeholder to avoid linker complaints. Its purpose is to satisfy the linker when using C++ exceptions and unwinding, but it does not contain any actual functionality. | ||
| - GC2053摄像头: [https://item.taobao.com/item.htm?&id=736796459015](https://item.taobao.com/item.htm?&id=736796459015) | ||
| - RJ45 百兆线（选择4P转水晶头 50CM）: [https://item.taobao.com/item.htm?&id=626832235333](https://item.taobao.com/item.htm?&id=626832235333) |