Board Support Package For NodeMCU-ESP8266 Boards

Introduction

This board support package (BSP) supports NodeMCU-ESP8266 boards. The BSP is based on ESP8266 Xtensa libraries and tool chain.

Getting Started

§     Install Silicon Labs CP210x USB drivers for host PC. These drivers are available on manufacturer web site

§     Create model and build to generate required binary.

§     Refer below for programming and debugging support.

Board Configuration

· General Configuration

Configuration Parameter	Parameter Value
Board Title	ESP8266 NodeMCU
Tool Chain Type	Local Build
Board Preprocessor Symbol	_BUILD_BRD_ESP8266_NODEMCU
Platform Preprocessor Symbol	_BUILD_PLT_ESP8266
Compiler Preprocessor Symbol	_BUILD_CMP_XTENSA_GCC
C++11 Standard Support	No
File System Support	Yes
OpenMP/OpenCL/CUDA Support	No
Simulation Panel Support	No/No/No

· Hardware Configuration

Configuration Parameter	Parameter Values same for both targets mentioned above except in number of cores
Number of CPU cores	1
Dynamic Memory Support	Yes
Prefer Fixed/Floating Point	Floating Point
DI/DO Pins	D0 (LED1)[16], D1[5], D2[4], D3[0], D4 (LED2)[2], D5[14], D6[12], D7[13], D8[15], RX[3], TX[1], SD3[10], SD2[9], SD1[8], CMD[11], SD0[7], CLK[6]
ADC Default Resolution	10
ADC Pins	A0[A0]
PWM Default Resolution	10
PWM Pins	D1[5], D2[4], D3[0], D4 (LED2)[2], D5[14], D6[12], D7[13], D8[15], RX[3], TX[1]
DAC Default Resolution	10
DAC Pins	-
UART0 Pins	via USB programmer port
UART1 Pins	-
UART2 Pins	-
UART3 Pins	-
SPI Pins	D7(MOSI), D6(MISO), D5(CLK), D8(SS)
I2C Pins	D2(SDA), D1(SCL)
Onboard WiFi	Implemented through TargetHw_Wifi101 block

Programmer

CASP supports Programmer0 (using esptool.exe) for uploading generated binary file to the board.

Debugging

Debugging is supported over USB serial.

Known Issues & Limitations

§     For limitations on usage of GPIOs please refer to vendor’s documentation.

§     For ADC (A0) to work properly ensure that ‘TargetHw IO’ block execution interval is above 10 msec.