カテゴリー: raspberry pi pico

#!/usr/bin/python
# -*- coding: utf-8 -*-
from machine import Pin, I2C
import time
import binascii

#    the first version use i2c1
#I2C_PORT = 1
#I2C_SDA = 6
#I2C_SCL = 7

#    the new version use i2c0,if it dont work,try to uncomment the line 14 and comment line 17
#    it should solder the R3 with 0R resistor if want to use alarm function,please refer to the Sch file on waveshare Pico-RTC-DS3231 wiki
#    https://www.waveshare.net/w/upload/0/08/Pico-RTC-DS3231_Sch.pdf
I2C_PORT = 0
I2C_SDA = 20
I2C_SCL = 21

ALARM_PIN = 3


class ds3231(object):
#            13:45:00 Mon 24 May 2021
#  the register value is the binary-coded decimal (BCD) format
#               sec min hour week day month year
    NowTime = b'\x00\x45\x13\x02\x24\x05\x21'
    w  = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
    address = 0x68
    start_reg = 0x00
    alarm1_reg = 0x07
    control_reg = 0x0e
    status_reg = 0x0f
    
    def __init__(self,i2c_port,i2c_scl,i2c_sda):
        self.bus = I2C(i2c_port,scl=Pin(i2c_scl),sda=Pin(i2c_sda))

    def set_time(self,new_time):
        hour = new_time[0] + new_time[1]
        minute = new_time[3] + new_time[4]
        second = new_time[6] + new_time[7]
        week = "0" + str(self.w.index(new_time.split(",",2)[1])+1)
        year = new_time.split(",",2)[2][2] + new_time.split(",",2)[2][3]
        month = new_time.split(",",2)[2][5] + new_time.split(",",2)[2][6]
        day = new_time.split(",",2)[2][8] + new_time.split(",",2)[2][9]
        now_time = binascii.unhexlify((second + " " + minute + " " + hour + " " + week + " " + day + " " + month + " " + year).replace(' ',''))
        #print(binascii.unhexlify((second + " " + minute + " " + hour + " " + week + " " + day + " " + month + " " + year).replace(' ','')))
        #print(self.NowTime)
        self.bus.writeto_mem(int(self.address),int(self.start_reg),now_time)
    
    def read_time(self):
        t = self.bus.readfrom_mem(int(self.address),int(self.start_reg),7)
        a = t[0]&0x7F  #second
        b = t[1]&0x7F  #minute
        c = t[2]&0x3F  #hour
        d = t[3]&0x07  #week
        e = t[4]&0x3F  #day
        f = t[5]&0x1F  #month
        print("20%x/%02x/%02x %02x:%02x:%02x %s" %(t[6],t[5],t[4],t[2],t[1],t[0],self.w[t[3]-1]))

    def set_alarm_time(self, alarm_time):
        self.alarm_pin = Pin(ALARM_PIN, Pin.IN, Pin.PULL_UP)
        self.alarm_pin.irq(lambda pin: print("alarm1 time is up"), Pin.IRQ_FALLING)

    # ステータスフラグクリア
        status = self.bus.readfrom_mem(self.address, self.status_reg, 1)
        self.bus.writeto_mem(self.address, self.status_reg, bytes([status[0] & 0xFE]))

    # コントロールレジスタ設定 (INTCN=1, A1IE=1)
        self.bus.writeto_mem(self.address, self.control_reg, b'\x07')

    # アラーム時刻設定
        hour = alarm_time[0] + alarm_time[1]
        minute = alarm_time[3] + alarm_time[4]
        second = alarm_time[6] + alarm_time[7]
        date = alarm_time.split(",", 2)[2][8] + alarm_time.split(",", 2)[2][9]
        now_time = binascii.unhexlify((second + minute + hour + date).replace(' ', ''))
        self.bus.writeto_mem(self.address, self.alarm1_reg, now_time)
        
if __name__ == '__main__':
    rtc = ds3231(I2C_PORT,I2C_SCL,I2C_SDA)
    rtc.set_time('17:18:00,Friday,2025-09-12')
    rtc.read_time()
    rtc.set_alarm_time('17:18:10,Friday,2025-09-12')
    
    try:
        while True:
            time.sleep(1)  
    except KeyboardInterrupt:
        print("terminated")

// Pin definitions for the LCD connection
//#define BL_PIN 13 // Backlight pin
#define DC_PIN 20   // Data/Command pin
#define RST_PIN 21  // Reset pin
#define MOSI_PIN 19 // SPI MOSI pin
#define SCK_PIN 18  // SPI Clock pin
#define CS_PIN 17   // Chip Select pin

// SPI configuration
#define SPI_PORT spi0
#define SPI_BAUDRATE 2000000  // 62.5 MHz SPI clock

// Function prototypes for internal use
static void lcd_write_command(uint8_t cmd);
static void lcd_write_data(uint8_t data);
static void lcd_set_window(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);

// Initialize the LCD
void lcd_init() {
    // Initialize SPI
    spi_init(SPI_PORT, SPI_BAUDRATE);
    spi_set_format(SPI_PORT, 8, SPI_CPOL_1, SPI_CPHA_1, SPI_MSB_FIRST);     // to add this line

# Generated Cmake Pico project file

cmake_minimum_required(VERSION 3.13)

set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# Initialise pico_sdk from installed location
# (note this can come from environment, CMake cache etc)

# == DO NOT EDIT THE FOLLOWING LINES for the Raspberry Pi Pico VS Code Extension to work ==
if(WIN32)
    set(USERHOME $ENV{USERPROFILE})
else()
    set(USERHOME $ENV{HOME})
endif()
set(sdkVersion 2.1.1)
set(toolchainVersion 14_2_Rel1)
set(picotoolVersion 2.1.1)
#set(picoVscode ${USERHOME}/.pico-sdk/cmake/pico-vscode.cmake)
#if (EXISTS ${picoVscode})
#    include(${picoVscode})
#endif()
# ====================================================================================
set(PICO_BOARD pico2_w CACHE STRING "Board type")

set(PICO_SDK_PATH "$ENV{HOME}/pi/pico/pico-sdk")
#set(PICO_SDK_PATH "/Users/usamiryuuichi/pi/pico/pico-sdk")


# Pull in Raspberry Pi Pico SDK (must be before project)
include(pico_sdk_import.cmake)

project(dsp C CXX ASM)

# Initialise the Raspberry Pi Pico SDK
pico_sdk_init()

# Create a library for the LCD driver
add_library(lcd_driver STATIC
    lcd_st7789_library.c
    font_5x7.c
)

add_library(CMSISDSP STATIC IMPORTED GLOBAL)
set_target_properties(CMSISDSP PROPERTIES IMPORTED_LOCATION
  $ENV{HOME}/pi/pico/CMSISDSP/build/bin_dsp/libCMSISDSP.a)

#target_link_libraries(dsp CMSISDSP ...)

# Add executable. Default name is the project name, version 0.1

add_executable(dsp dsp.c )

pico_set_program_name(dsp "dsp")
pico_set_program_version(dsp "0.1")

# Modify the below lines to enable/disable output over UART/USB
pico_enable_stdio_uart(dsp 0)
pico_enable_stdio_usb(dsp 1)

# Add the standard library to the build
target_link_libraries(dsp
        pico_stdlib
        pico_multicore
        hardware_adc
        hardware_dma
        hardware_pio
        hardware_pwm
        hardware_spi
        CMSISDSP
        lcd_driver
        hardware_timer 
        pico_multicore
)

target_link_libraries(lcd_driver
    pico_stdlib
    hardware_spi
)

# Add the standard include files to the build
target_include_directories(dsp PRIVATE
        ${CMAKE_CURRENT_LIST_DIR}
        $ENV{HOME}/pi/pico/CMSISDSP/CMSIS-DSP/Include
        $ENV{HOME}/pi/pico/CMSISDSP/CMSIS_6/CMSIS/Core/Include
        ${PICO_SDK_PATH}/src/rp2
)

target_include_directories(lcd_driver PRIVATE
    ${CMAKE_CURRENT_LIST_DIR}
    ${PICO_SDK_PATH}/src/common
    ${PICO_SDK_PATH}/src/rp2
)

pico_add_extra_outputs(dsp)

// core1 will be used for LCD display control
#include "pico/stdlib.h"
#include "lcd_st7789_library.h"
#include "hardware/spi.h"

void core1_main()
{
    // Initialize the LCD
    lcd_init();

    // Fill the screen
    lcd_fill_color(create_color(255, 255, 255));

    // Draw a rectangle
    lcd_draw_rect(10, 10, 100, 50, create_color(0, 0, 255));

    // Draw some text
    lcd_draw_text(20, 20, "Hello, World!", create_color(255, 0, 0), create_color(255, 255, 255), 1); // char color, bg color, font size

    while (1)
    {

    }
}

    lcd_write_command(0x36);  // Memory Data Access Control
    lcd_write_data(0xA0);     // display rotation

#include <adafruit_gfx.h>
#include <adafruit_st7789.h>
#include <spi.h>

// ピン定義（PicoのGPIO番号）
#define TFT_CS    17  // pin 22
#define TFT_RST   21  // pin 27
#define TFT_DC    20  // pin 26
#define TFT_SCK   18  // pin 24
#define TFT_MOSI  19  // pin 25

SPISettings settings(2000000, MSBFIRST, SPI_MODE3);
Adafruit_ST7789 tft = Adafruit_ST7789(&SPI, TFT_CS, TFT_DC, TFT_RST);

void setup() {
  tft.init(240, 320, SPI_MODE3);
  delay(100);

  tft.fillScreen(ST77XX_WHITE);   // 背景を白に設定
  tft.setRotation(1);             // 画面を90度回転
  tft.setCursor(20, 100);         // 文字の表示位置を設定
  tft.setTextColor(ST77XX_BLUE);
  tft.setTextSize(3);             // 文字サイズを設定
  tft.print("Hello Pico");       // 文字の表示
}

void loop() {
  delay(1000);
}