STM32F4系列（F1类似），使用DMA驱动硬件SPI 高速推动OLED屏。
提供的是经过改进后的OLED.C这个文件，明白的人看了就会用。
zhuOLED_DrawPoint函数需要自行修改
2021-08-01 08:00:08
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STM32用PWM +DMA驱动 WS2812
/* Buffer that holds one complete DMA transmission
*
* Ensure that this buffer is big enough to hold
* all data bytes that need to be sent
*
* The buffer size can be calculated as follows:
* number of LEDs * 24 bytes + 42 bytes
*
* This leaves us with a maximum string length of
* (2^16 bytes per DMA stream - 42 bytes)/24 bytes per LED = 2728 LEDs
2021-06-01 09:42:18
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xilliix pcie dma 驱动 （基于 xilnx xdma ip核 4.0 的WDF驱动）
---
# XDMA Windows Driver
This project is Xilinx's sample Windows driver for 'DMA/Bridge Subsystem for PCI Express v4.0' (XDMA) IP.
*Please note that this driver and associated software are supplied to give a basic generic reference
implementation only. Customers may have specific use-cases and/or requirements for which this driver
is not suitable.*
### Dependencies
* Target machine running Windows 7 or Windows 10
* Development machine running Windows 7 (or later)
* Visual Studio 2015 (or later) installed on development machine
* Windows Driver Kit (WDK) version 1703 (or later) installed on development machine
## Directory Structure
```
/
|__ build/ - Generated directory containing build output binaries.
|__ exe/ - Contains sample client application source code.
| |__ simple_dma/ - Sample code for AXI-MM configured XDMA IP.
| |__ streaming_dma/ - Sample code for AXI-ST configured XDMA IP.
| |__ user_events/ - Sample code for access to user event interrupts.
| |__ xdma_info/ - Utility application which prints out the XDMA core ip
| | configuration.
| |__ xdma_rw/ - Utility for reading/writing to/from xdma device nodes such
| | as control, user, bypass, h2c_0, c2h_0 etc.
| |__ xdma_test/ - Basic test application which performs H2C/C2H transfers on
| all present channels.
|__ inc/ - Contains public API header file for XDMA driver.
|__ libxdma/ - Static kernel library for XDMA IP.
|__ sys/ - Reference driver source code which uses libxdma
|__ README.md - This file.
|__ XDMA.sln - Visual Studio Solution.
```
2019-12-24 03:22:06
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