nrf51822 pwm

:f_out=clk0;1:F_OUT=CLK1;2:F_OUT=CLK2;3:F_OUT=CLK3;4:F_OUT=CLK4;5:F_OUT=CLK5;6:f_out=clk6;7:F_OUT=CLK7;EndcaseEndmoduleThe realization of the non-fixed duty ratio (frequency adjustment, the duty ratio will follow the change)Module Pulse_gen(Input clk_in,Inputrst_n_in,Inputkey_menu,INPUTKEY_UP,Inputkey_down,Outputmenu_state,Outputregpulse_out);Debounce for Key_menuDebounce debounce_menu (. CLK (Clk_in),. Rst_n (Rst_n_in),. Key_n (Key_menu),. Key_state (menu_state));Debounce for KEY_UPDebounce deb

p2.0 pwm1.1void Als_init(void) //initialization{LPC_SC, Pconp |= (11) | ( 12) | (1); Turn on the clockLPC_SC-PCLKSEL0 = ~ (32); Clock 25MLPC_SC-PCLKSEL0 = ~ (34);p2.0Lpc_pincon-PINSEL4 = ~ (0x03l0); GPIOLpc_pincon-PINMODE4 = ~ (0x03l0); To enable pull-upLpc_pincon-pinmode_od2 = ~ (0x011); Push-Pull Normal modeP2dir(0) = 1; OutputLpc_tim1, TCR |= (11); Reset TimerLPC_TIM1-CTCR = 0x00; Timer modeLPC_TIM1PC = 0x00;LPC_TIM1-PR = 1; Prescaler, Count frequency 1mLPC_TIM1-MR0 = ; 25*100 2500 Frequency

= pclk/{pre-division value + 1}/{division value}// {Pre-division value} = 0 ~ 255// {Frequency division value} = 2, 4, 8, 16// Pclk: 50 MHz clock frequency: 6250 kHz scheduled 1 ms count: clock frequency * Scheduled time-1// 50000000/(16*8) = 390625Rgpbcon = (rgpbcon ~ 0x3) | 0x2; // set the gpb0 port to tout PWM 0b10Rt1_0 = (rt1_0 ~ 0xff) | 15; // prescaler0 = 15 + 1Rtcfg1 = (rtcfg1 ~ 0xf) | 0x2; // MUX = 1/8 0b0010Rtcntb0 = 50000000/(16*8)/freq;Rtc

The following accessories are used:Raspberry Pi 3 * *Brushless ESC 30A *Brushless Motor A2212 1400kv *7.4V Power Supply * *5V Power Supply * *Connecting Wire several The simple connection diagram is as follows: Code: Import Rpi.gpio as Gpio import time, sys #我用的第12个引脚 pin = Gpio.setmode (gpio). BOARD) Gpio.setup (PIN, Gpio. Out) #频率设置为400Hz p = gpio. PWM (PIN, max) p.start (0) #占空比从10开始, gradually added to the DC = Ten for i in range (+):

Nordic company do have ibeacon board and SDK, few people have this SDK, I recently in a friend that also got one, but there is no time to see.Now we use the Common SDK comes with the Beacon routine to do development, the development of the trust

The works used are based on the SDK10 engineeringIn the nrf51_sdk_10.0.0_dc26b5e\examples\peripheral\twi_sensor will be used as the templateModify Code MAIN.C1#include

The Battery service is about battery characteristics, and if it is needed, it is added to the Bluetooth protocol stack at initialization time. If the battery level is notified via Ble_bas_battery_level_update (), the battery service sends the event

2014-12-23NRF51822 Project CombatFirst of all, you need to find out the Bluetooth Send Data API interface, may be similar to the network sock recv () and send ()Get the user manual, see the first code that can be consulted is the heart rate meter,

This tutorial explains how to use the phone to dynamically modify the device name, the device name after reaching the device to connect to the phone, and then disconnect and then scan to see the new device name. The tutorial is based on Uartdemo

The selected stepper motor model is 28byj-48 (or mp28ga,5v, speed ratio 1/64), the driving circuit selects the ULN2003 Chip's drive board, the control sequence diagram is as follows: Four-Phase Eight beat: a->ab->b->bc->c->cd->d->da Its a, B, C, d

Servo control generally requires a 20ms time-base pulse, the high-level portion of the pulse is generally the 0.5ms~2.5ms range of angle control pulse part. In the case of a 180-degree angle servo, the corresponding control relationship is as

  Connect as shown in the following figure:   The resistor size of the photosensitive resistor is inversely proportional to the brightness. By measuring the voltage of the resistor, you can know the resistor size of the photosensitive resistor to

1, status record:Current Status:(1) stm32f405r program Download no problem, led test program OK(2) nRF51822 256K program Download no problem, led test program OK(3) stm32f405r driver MPU9250 No problem, can read to ID correctly(4) nRF51822 256K CRAZYFLIE20 program can be downloaded, can enter the bootloader, from the mobile phone to see nRF51822 ble information(5

Transferred from: http://blog.csdn.net/weiqing1981127/article/details/8511676All rights reserved, reprint must explain transfer from http://my.csdn.net/weiqing1981127The original Nanjing University of Posts and telecommunications communication and information System Professional research two Wei QingA Overview of backlight back photon systemOur LCD screen often needs a backlight, adjust the brightness of the LCD screen backlight, where the backlight is not just light and not light two, but accor

(){Initialize the motor drive IO as the output modePinmode (Left_motor_go,output); PIN 8 (PWM)Pinmode (Left_motor_back,output); PIN 9 (PWM)Pinmode (right_motor_go,output);//PIN (PWM)Pinmode (right_motor_back,output);//PIN One (PWM)}void run (int time)//forward{Digitalwrite (Right_motor_go,high); Right Motor forwardDig

ArticleDirectory Introduction Build HDL Hardware settings Software Development Statement: This article is original works, copyright belongs to the author of this blog, If You Need To reprint, please indicate the source of http://www.cnblogs.com/kingst/ Introduction As an embedded software-core processor built on FPGA, niosii can add any provided peripherals as needed, you can also customize user logic peripherals and Custom User commands to meet various application requi

Each capture/compare channel is centered around a capture/compare register (including the shadow register), including the captured input (digital filtering, multiplexing, and pre-divider ), and the output part (comparator and output control ). The capture/compare module consists of a preload register and a shadow register. Only the pre-loaded registers are operated during the read/write process. In the capture mode, the capture occurs in the shadow register and then copied to the pre-loaded regi

series of products, the most comprehensive, the most professional tpyboard naturally can not let go of this opportunity for domestic friends. Heavy ultra-low price of 99 yuan introduced fully compatible with the original Micro:bit Turnipbit, and in the original based on the improvement. Whether programming small white, primary and secondary school or hardware, you can use the Turnipbit 0 Basic Learning Python programming, and transition to any other language. Provide a wide range of routines an

timer when matching. You can choose to interrupt the timer. 5. There are 3 timer 0 and 4 timer 1 correspond to the external output of the matching register. The output of matching is as follows: Set to low when matching Set to high when matching Flip When matching No action during Matching 6. For each timer, up to four matching registers can be configured as PWM, and up to three matching outputs can be used as PW