This is the published version of the ADPD2140 driver for STM32 NUCLEO-L432KC microcontroller evaluation board. This firmware allows use of the ADPD2140 light angle sensor and ADPD1080 AFE on-chip gesture recognition engine. Swipe your hand over the sensor board to detect: -up -down -left -right -click
Diff: main.cpp
- Revision:
- 0:27c59a993903
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Tue Nov 20 18:16:45 2018 +0000 @@ -0,0 +1,82 @@ +// Copyright (C) 2018 Analog Devices, Inc. - All Rights Reserved +#include "mbed.h" + +I2C i2c(D4, D5); // I2C i2c(D14, D15); +DigitalIn gpio0(D9); +Serial serial(PA_2, PA_15, 115200); //Serial serial(D0, D1, 115200); + +uint16_t ADPD_Read_Register(uint8_t register_address) +{ + char data[1] = {register_address}; + char buffer[2]; + i2c.write(0xC8, data, 1); + i2c.read(0xC9, buffer, 2); + uint16_t register_value = buffer[0]*256 + buffer[1]; + return(register_value); +} + +void ADPD_Write_Register(uint8_t register_address, uint16_t register_value) +{ + char data[3]; + data[0] = register_address; + data[1] = register_value>>8; + data[2] = register_value; + i2c.write(0xC8, data, 3); +} + +void ADPD_Load_Config(void) +{ + ADPD_Write_Register(0x10, 0x0001); + ADPD_Write_Register(0x00, 0x80FF); + ADPD_Write_Register(0x01, 0x01EF); + ADPD_Write_Register(0x02, 0x0005); + ADPD_Write_Register(0x06, 0x0000); + ADPD_Write_Register(0x11, 0x300B); + ADPD_Write_Register(0x12, 0x0050); + ADPD_Write_Register(0x14, 0x0555); + ADPD_Write_Register(0x15, 0x0000); + ADPD_Write_Register(0x18, 0x1F00); + ADPD_Write_Register(0x19, 0x1F00); + ADPD_Write_Register(0x1A, 0x1F00); + ADPD_Write_Register(0x1B, 0x1F00); + ADPD_Write_Register(0x23, 0x303F); + ADPD_Write_Register(0x25, 0x02CC); + ADPD_Write_Register(0x26, 0x0A00); + ADPD_Write_Register(0x28, 0x0050); + ADPD_Write_Register(0x30, 0x0319); + ADPD_Write_Register(0x31, 0x0813); + ADPD_Write_Register(0x34, 0x0000); + ADPD_Write_Register(0x39, 0x21FB); + ADPD_Write_Register(0x3C, 0x3006); + ADPD_Write_Register(0x42, 0x1C34); + ADPD_Write_Register(0x43, 0xADA5); + ADPD_Write_Register(0x4B, 0x2695); + ADPD_Write_Register(0x54, 0x0AA0); +} + +int main() { + i2c.frequency(400000); + + ADPD_Load_Config(); + ADPD_Write_Register(0x10, 0x0002); + uint16_t G; + + while(1) { + if (gpio0 == 0) { + G = ADPD_Read_Register(0x60); + ADPD_Write_Register(0x00, 0x80FF); + + if ((G>>7) & 0x01) { + serial.printf("click\n\r"); + } else if ((G>>6) & 0x01) { + serial.printf("down\n\r"); + } else if ((G>>5) & 0x01) { + serial.printf("up\n\r"); + } else if ((G>>4) & 0x01) { + serial.printf("right\n\r"); + } else if ((G>>3) & 0x01) { + serial.printf("left\n\r"); + } + } + } +} \ No newline at end of file