GitHub - verilog-indeed/nano_4k_empu: Reference FPGA designs for interfacing with the internal ARM Cortex M3 MCU of the GW1NSR-4C, modified for use with boards like the Tang Nano 4K. Use gowin_empu coupled with the 1602 LCD library to be able to use 1602 LCD displays.

Basic Gowin EDA design to make use of the GW1NSR-4C's embedded Cortex M3.

Made with the Sipeed Tang Nano 4K board in mind.

The current configuration is as follows:

27MHz crystal oscillator for the system clock (pin 45).
Active-low reset using the onboard push button (pin 15).
8 GPIO lines at 2.5V where GPIO_Pin_7, 6, 5, 4, 3, 2, 1 and 0 map to pins 35, 34, 32, 31, 27, 28, 29 and 30 respectively.
UART TX on pin 19, UART RX on pin 20.

Name		Name	Last commit message	Last commit date
Latest commit History 1 Commit
impl		impl
src		src
README.md		README.md
nano_4k_empu.gprj		nano_4k_empu.gprj
nano_4k_empu.gprj.user		nano_4k_empu.gprj.user

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