boochow

class RAMBlockDev:
    def __init__(self, block_size, num_blocks):
        self.block_size = block_size
        self.data = bytearray(block_size * num_blocks)

    def readblocks(self, block_num, buf):
        for i in range(len(buf)):
            buf[i] = self.data[block_num * self.block_size + i]

    def writeblocks(self, block_num, buf):

boochow

import time

def performanceTest():
    millis = time.ticks_ms
    endTime = millis() + 10000
    count = 0
    while millis() < endTime:
        count += 1
    print("Count: ", count)

boochow

class RAMBlockDev:
    def __init__(self, block_size, num_blocks):
        self.block_size = block_size
        self.data = bytearray(block_size * num_blocks)

    def readblocks(self, block_num, buf):
        for i in range(len(buf)):
            buf[i] = self.data[block_num * self.block_size + i]

    def writeblocks(self, block_num, buf):

boochow

if (sd_init() == SD_OK) {
    unsigned char buf[1024];
    if (sd_readblock(0, buf, 1)) {
        for (int i = 0; i < 512; i++) {
            if (i % 16 == 0) {
                printf("%04x:", i);
            }
            printf("%02x ", buf[i]);
            if ((i + 1) % 16 == 0) {
                printf("\n\r");

boochow

sd = SD()
os.mount(sd, '/sd')
os.chdir('sd')

import gpu, framebuf
gpu.fb_init(320, 240, screen_w=1920, screen_h=1080)
fb = framebuf.FrameBuffer(gpu.fb_data(), 320, 240, framebuf.RGB565)
fb.fill_rect(0, 0, 320, 240, 0)

f = open('test1.raw', 'rb')

boochow

    def write_data(self, buf):
        self.temp[0] = self.addr << 1
        self.temp[1] = 0x40 # Co=0, D/C#=1                                      
        self.i2c.start()
        self.i2c.write(self.temp)
        self.i2c.write(buf)
        self.i2c.stop()

boochow

    def write_data(self, buf):
        self.i2c.writeto(self.addr, bytearray([0x40]), False)
        self.i2c.writeto(self.addr, buf)

boochow

def decimal2num(b):
    return ((b & 0xf) + 10 * (b >> 4))

def num2decimal(d):
    return (d % 10) | (d // 10) << 4

def hour_value(b):
    result = decimal2num(b & 0x1f)
    if (b & 0x20):
        result += 12

boochow

from machine import Timer,I2C

i2c = I2C(1)
i2c.init()

d = SSD1306_I2C(128,64,i2c)
c = DS3231(i2c)
c.write([2018, 5, 30, 23, 30, 45, 3])

day = ['Sun','Mon','Tue','Wed','Thu','Fri','Sat']

boochow

import machine
sd = machine.SD()

import os
os.mount(sd, '/sd')
os.chdir('sd')