quad uart

, and 15 times is output. TC is the number of output records. Each output time, TC is reduced by 1, and the value is 0, one-service mode for stopping DMA and waiting for other DMA requests. If an interrupt is set, the MDA is interrupted. Therefore, TC is the cycle.Code Area Main. c # Define global_clk 1 # include "def. H "# include" option. H "# include" 2440addr. H "# include" 2440lib. H "// function declaration # include" 2440slib. H "# include" MMU. H "# include" profile. H "// extern void d

It is suitable for msp430g2553 MCU to use the HC-SR04 ultrasonic ranging module and communicates with PC using UART. Copy Code code as follows: #include The last time a long current_time;//was measured /*mypro*/ #define LED_1 BIT0 #define SW_2 BIT3 #define Ta1_1 BIT2//ta0.1 hc-sr04 Echo #define TRIG BIT4//hc-sr04 TRIG #define ACCU_GRD 7 Grade "xxx.x" + '//accuracy ' #define MIN_UNIT_TO1M 1000//1 m to 1 mm /*timer0*/#define SOUR

. --------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------------- ------------------- The DB9 UART definition male is 2-RX,3-TX,5-GND, the corresponding parent is 2-TX,3-RX,5-GND, thi

fetched): \kernel\out\vmlinuxOther Notes:[SD0] SET_CLK (52000kHz): SCLK (50000kHz) indicates that eMMC works in the preloader phase at 52MHZ!!!, MSDC0 setFor data CRC Error,time out in log, it is often necessary to reduce the EMMC's operating frequency, and the PL, LK, and kernel phase CLK settings are\mediatek\platform\mt6xxx\preloader\src\drivers\msdc.cvoid Msdc_config_clock (struct mmc_host *host, int DDR, u32 Hz)\mediatek\platform\mt6xxx\lk\msdc.cvoid Msdc_config_clock (struct mmc_host *hos

This article from http://blog.csdn.net/hellogv/, reference must indicate the source! I recently want to develop on the MSP430, and I/O simulation on the first hand will be difficult. Fortunately, there are already many examples of the implementation of the soft serial port of the MSP430 on the Internet. Most of the Code in this article is referred> Logging .... It took a week to debug the I/O simulation UART .... Next we will paste the code 100% that

. /*************************************** ******************************** Function: Achieve serial transmission using DMA,Pass the string data to utxh0 through the dma0 channel, and thenDisplay. After data transmission, dma0 is interrupted and led1 is on.**************************************** ********************************Mini2440 debugging passed2012-08-05**************************************** *****************************/# Include "2440addr. H"# Define mdiv 92# Define sdiv 1# Defin

alive to send hardware to understand the data to the hardware device (such as 8N1), and assume the task of configuring the hardware register.2. The line procedure is used to format the data above the driving layer. The function of formatting is to give the entire device additional functionality. such as PPP as a line of practice, will have authentication, compression and other functions. Of course, here is a little bit of the most important thing: when I say the above sentence, the model is the

1 /*********************************2 Code function: Development Board sends data to host via UART3 using functions:4 Serial.begin (baud rate of data transmission);5 serial.println (data returned);6 creation time: 2016*10*077 Author Email: [Email protected]8 ********************************/9 voidSetup ()Ten { OneSerial.begin (9600); A } - voidLoop () - { theSerial.println ("I Love [email protected]"); -Delay +); -}Development Board sends data to host via UA