The experimental solution with STM32F4 and XC6LX9 discrete development boards.
This problem is that many pins are hard-wired to some specific features. For example, the SelectMap port cannot be used on my current FPGA board. The goal would be to have 32-bit input and output between the FPGA and the microcontroller, as well as 16-bit SelectMap interface connected to the microcontroller GPIO/Memory controller.
- ① STM32F4 ARM microcontroller
- ② XC6LX9 Xilinx FPGA
- Ⓐ Connection between the FSMC port of the microcontroller (external memory) and SelectMap port of the FPGA (parallel config).
- Ⓑ Connection between the GPIO of the microcontroller and the user IO of the FPGA, in a way to allow circular DMA buffer mode on the STM32 side.
Dedicated development board for microcontroller-controlled dynamic reconfiguration of the FPGA
I ordered the parts for building my own board, which would feature:
- STM32F4 microcontroller [1] in TQFP-144 package on its adapter board [2].
- Spartan-6 LX9 FPGA [DS162] in the same TQFP-144 package and the same adapter board.
- Linear voltage regulators in the SOT-223 package on their own adapter boards [3].
- Pull-up or pull-down resistors on a dedicated adapter board [4].
- FTDI-based USB-to-TTL adapters [5].
Mini dictionary for ordering on 淘宝 (Taobao)
- 转接板: adapter board
- 针: pin
- 芯片: chip
| [1] | STM32F405xx, STM32F407xx datasheet http://www.st.com/web/en/resource/technical/document/datasheet/DM00037051.pdf |
| [2] | 转接板无铅 QFP/EQFP/TQFP/LQFP144/128 贴片转直插DIP CPU空板 http://item.taobao.com/item.htm?id=40141157360 |
| [DS162] | Spartan-6 FPGA Datasheet: DC and Switching Characteristics http://www.xilinx.com/support/documentation/data_sheets/ds162.pdf |
| [3] | SOT89转SIP SOT223转DIP 转接板 1.5mm pitch引脚间距 电子设计 http://item.taobao.com/item.htm?id=40114907309 |
| [4] | 贴片转直插 0805 0603 0402 SMT转DIP 电容 电阻 LED SMT转接板 http://item.taobao.com/item.htm?id=40157924653 |
| [5] | 批发 单排针 单排插针 2.54MM 1*40PIN 直针 长11MM 2.54 排针 http://item.taobao.com/item.htm?id=40072713284 |
| [6] | USB转TTL 升级小板 CH340模块 STC单片机下载线 刷机板 USB转串口 http://item.taobao.com/item.htm?id=39893289376 |