1.基于CMSIS-DAP的脱机编程工具         飞思卡尔的FRDM开发板都板载OpenSDA仿真器，该仿真器基于MK20DX128VFM5芯片，内部由Bootloader和app所组成，当用户按下Reset按钮后再插上USB接口，此时会进入Bootloader模式，此时PC端会出现一个名为Bootloader的可移动存储器，用户可以通过拖入预编译好的*.SDA升级app，更新v114版本的app后，重新插拔USB即可生效，此时会枚举出虚拟串口，仿真器以及MSD的可移动存储器。Bootloader占用了MK20DX128VFM5内部从0开始到0x5000的地址，App从0x5000地址开始。        CMSIS-DAP(mbedmicro/CMSIS-DAP · GitHub)是ARM公司的一个开源项目，它提供了一个基于Web的开发环境(mbed | welcome), 开发环境提供了基于C++的开发库，用户可以通过Web编程，然后下载编译好的bin文件，通过CMSIS-DAP烧写到FRDM开发板中。CMSIS-DAP与OpenSDA类似，也是由Bootloader和app所组成，最大的区别是CMSIS-DAP的Bootloader占用的地址为0x0~0x8000。        由于CMSIS-DAP是Apache License开源的，通过修改其Bootloader代码可以比较容易的做出一个脱机烧写器参考。        1. 添加SWD的访问接口。        2. 修改链接文件，默认Bootloader是运行在0地址上的，而实际编程工具最好运行在0x5000或者0x8000这两个地址上，这样不需要通过仿真器对于MK20DX128进行编程即可更新其内容，同时也可以轻松在仿真器及烧写器间进行切换。        3. 修改MSD烧写文件的地址，默认Bootloader是烧写从0x5000或者0x8000开始的地址，而这个地址现在放的是脱机烧写器代码，所以需要向后移动到0x10000，并将目标文件大小存放在0x1F800地址上。脱机烧写器由于将目标文件存放在K20芯片内部，所以受到K20内部flash大小的限制，只能烧写目标文件小于60K。        4. 添加编程算法工程，由于目标芯片内部的flash需要不同的驱动，所以可以将他们生产的算法代码先放到K20内部0x1FC00的地址上，烧写器开始工作时，先将编程算法通过SWD下载到目标文件的RAM中，并修改目标芯片的SP PC指针，让其运行。编程算法与烧写器的运行程序通过RAM进行交互。 参考代码下载地址： hudieka/OpenSourceOfflineProgrammerTools · GitHub 具体使用方法可以参考附件：

      The MKW01Z device is highly-integrated, cost-effective, smart radio, sub-1 GHz wireless node solution composed of a transceiver supporting FSK, GFSK, MSK, or OOK modulations with a low-power ARM® Cortex M0+ CPU. The highly integrated RF transceiver operates over a wide frequency range including 315 MHz, 433 MHz, 470 MHz, 868 MHz, 915MHz, 928 MHz, and 955 MHz in the license-free Industrial, Scientific and Medical (ISM) frequency bands. This configuration allows users to minimize the use of external components.      The MPXY8600 is a sensor for use in applications that monitor tire pressure and temperature. It contains the pressure and temperature sensors, an X-axis and a Z-axis accelerometer, a microcontroller, an LF receiver and an RF transmitter all within a single package.        This setup offer customers to utilize Freescale MPXY8600/8700 as transmitter and MKW01 as receiver to form 315MHz, 433.92MHz TPMS transmitter and receiver  total solution.

       上篇详细的介绍了加密锁定Kinetis的一种方法，本篇再接再厉，给大家再介绍一种加密方法（哎，这点家底都晒出来了）。当然实际上原理还是不变的，即还是通过修改0x400~0x40F地址段的内容来实现加密锁定，万变不离其宗，所谓殊途同归罢了，下面好戏登台：        既然实现security最终都是改写寄存器加载段flash地址的内容，那实际上修改flash内容的方式还是灵活多变的，方案一中提到的在中断向量表的最后添加flash配置信息只是其中一种，那还有哪些呢？还是不摆谱了，小心被拍砖，哈哈。不错，那就是通过在指定地址定义常量的方法，当然定义常量大家都会用到（有些应用譬如LCD显示的字模或者一些固定的查找表为节省RAM空间我们一般会选择定义const常量的方法将它们存放到flash空间中），但是指定地址的存放方式用的会少些（一般都是让编译器自动分配的），如果我们非要指定地址呢（哎，强迫症又开始了，呵呵），即将flash配置信息作为常量强制指定存放到0x400起始的地址，那岂不是跟方案一有了异曲同工之妙了，好吧，这样的话那就该“@”这位老兄上场了（咳咳，可不是给单片机发email啊，呵呵），相信很多人到此处就都明白了。下面我仍然以IAR环境下锁定K60为例，简单介绍下方案二的使用步骤： 1. 打开待加密工程中的main.c文件，在其中的main函数之前以添加如下图所示常量定义，即将FlashConfig数据组数据存放到“.flashConfig”段中，其中FlashConfig[11]即为0x40C地址： 2. 至于这个.flashConfig段属性是需要在与该工程匹配的IAR连接文件（.icf文件）中人为添加定义的，如下图所示，需要添加三个部分，然后保存： 3. 前两步完成之后，其实需要添加的部分就已经完成了，但是还有特别重要的两点需要注意，这里我加红注释一下，如下： （1）采用方案二的情况，需要确保vectors.c中中断向量表最后的16个字节没有被添加，即不能有4个CONIFG_x配置信息的，否则会出现编译错误，因为这就涉及到两者冲突的问题，也就是说在采用方案一的话就不能采用方案二，同理，采用方案二的话也不能采用方案一，总之两者不能同存； （2）还需要考虑编译器优化的问题，因为我们在.flashConfig段定义了常量，但是在代码程序里却没有使用它，这种情况下编译器会直接把这段常量优化掉，所以我们做的工作算是白做了，即使我们在IAR的优化等级中设置成low或者none都不行，因为人家编译器认死理儿，反正你也没有使用它，我就是怕它pass掉，这下子伤心了，呵呵。还好IAR给我们留了条后路，在options->Linker->Input选项卡中提供了Keep symbol功能，如下图，将FlashConfig添加进去即可强制编译不优化它，这样目的就达到了，呵呵，看来还是天无绝人之路啊有木有。 3. 编译通过，下载调试，程序下载之后同样会出现进入不到调试窗口的现象，这个是正常现象，因为这个时候芯片就已经被security了，这样就可以放心量产了，呵呵~       希望这两篇系列文章能对大家有所帮助，enjoy it~

General Purpose Input/Output module presented by Jose Maria Casillas, Freescale TIC. Module explanation and alternative pin´s functions. Short explanation on the Bit Manipulation Engine (BME). Hands-On: LED RGB. Push Button. Módulo GPIO (General Purpose I/O) presentado por Jose María Casillas, Freescale TIC. Explicar el modulo y las funciones alternativas de los pines. Breve descripción del Bit Manipulation Engine (BME). Hands-On: LED RGB. Push Button.

UART Presentation (universal asynchronous receiver/transmitter) by Ali Piña, Freescale TIC. Module Explanation Connection Diagram Hands-On. Polling mode. Interrupt Mode. Presentación de UART  (universal asynchronous receiver/transmitter) by Ali Piña, Freescale TIC. a.       Explicación del modulo. b.      Diagrama de conexión. c.       Hands-On. Modo de Poleo Modo de Interrupción

The following file contains example code for usage of ADC, UART, DAC, GPIO, I2C, interrupts, MCG and timers for the k53 platform. Regards.

Hi All, Embedded systems industry are tending to optimized their products to offers a better performance in power management, aiming for longer battery life, using low-power modes in the application without reducing functionality. With this in mind, it arises a requirement in these compact devices, power supply monitor. This document will include a brief description of some features available in different power modes of the Kinetis family and it will focus on how we can implement these features, using KSDK 2.0, to monitor power supply voltage and detect when this voltage has fallen at determined value. This document is based MCU K21 but the same principles can be applied to any Kinetis K and L family. It will use KDS 3.2 as IDE and TWR-K21F120M evaluation board as target.   Hope you can find it useful Best Regards Jorge Alcala

The AOI and Crossbar modules are inregrated in DSC, Kinetics KV and i.mxrt families, user can use them to generate complicated trigger signal for the on-chip peripherals. The DOC discusses the AOI function, crossbar fuction based on KV58. It gives the example, the example demos how to implement AND operation of two signals via crossbar switch A and B and AOI modules. The two logic signals are connected to the pads of KV58, and routed to AOI inputs via Crossbar switch B, the AOI sub-module0 implements the AND operation of the two signals, and output the AND output signal Event0  to pad of KV58 via crossbar switch A. Connect input pads and output pad of KV58 to oscilloscope, from the waveform of the three signals on scope, we can see that the AND logic  is implemented.

系统框图如下图示： 硬件设计支持如下扩展功能： （1）      USB、SD卡（SDHC接口） （2）      SWD调试+串口Printf。 （3）      SPI外设接口，支持NRF24L01、W5100、WIFI等。 （4）      两路差分ADC输入、一路DAC输出。 （5）      50M有源晶振，供MCU以及以太网PHY工作。 （6）      32.768K RTC时钟晶振。 （7）      SPI Flash、EEPROM（IIC接口） （8）      CAN接口。以太网应用。 （9）      TSI电容触摸按键。 （10）  GPIO：按键输入以及LED输出指示。 （11）  PWM输出。 （12）  FlexBus总线扩展： 扩展应用一：4.3寸LCD。 扩展应用二：FPGA扩展高速ADC采集。（设计进行中） 基于K60+SSD1963驱动4.3寸屏并移植ucGUI的测试实例，移植后的视频效果见如下链接： http://v.youku.com/v_show/id_XNzAwMTE5OTA0.html?firsttime=15 Pixels/sec: 16397220。

This application demonstrates the use of the FRDM-KL25 as a HID HOST. In this project the HID Device is a Numeric Keyboard and the HOST Device (FRDM-KL25) is handling the data and printing them in a 16x2 LCD used in 8 bits mode .

This is an example for the Kinetis KE02Z devices, showing how to program the EEPROM with initial values when the flash is programmed.  The example works on the FRDM-KE02Z40M board, and was written with Kinetis Design Studio (KDS) v3.0.0.  The example also uses Processor Expert (PEx) to configure the UART and erase/program the EEPROM.  The EEPROM programming works with the P&E Micro Multilink Universal debugger, as well as the P&E Micro OpenSDA debugger app for the FRDM-KE02Z40M board. To program the EEPROM with initial values, the application declares constants for the EEPROM locations, and initializes these in the source code in eeprom.c. Compiler pragmas/attributes are used to force the linker to place these constants in EEPROM, using the m_eeprom memory section defined in the linker command file \Project_Settings\Linker_Files\ProcessorExpert.ld.  The P&E Micro flash programming algorithms initialize the EEPROM in 4Byte words. Therefore, any initialized EEPROM locations should be in aligned 4Byte words. This example initializes the first 4Bytes in the EEPROM as 0, 64, 128, 192. The example uses a terminal program to display EEPROM information.  It connects to the OpenSDA COM port on the FRDM-KE02Z40M board using UART1 from the KE02Z. The terminal settings are:   Baud Rate: 38,400   Data: 8bit   Parity: None   Stop: 1bit   Flow Control: None The example prints 5 bytes of EEPROM to the terminal after reset: the 4 initialized bytes, plus the following EEPROM byte which was not initialized. Then the example increments the first byte, and decrements the second byte, and writes the new values back to EEPROM.  The other 3 bytes are not changed. Then the application prints the new EEPROM values of all 5 bytes.  Everytime the MCU is reset, it will print the existing EEPROM data and then the changed data.  Below is the example output from the terminal after initially programming the KE02Z, and then doing a single reset: Terminal output:   KE02Z EEPROM example   EEPROM values after reset = 0 64 128 192 255   EEPROM values after updating = 1 63 128 192 255   KE02Z EEPROM example   EEPROM values after reset = 1 63 128 192 255   EEPROM values after updating = 2 62 128 192 255

The documentation points out that the Figure 32-1. Multipurpose Clock Generator (MCG) block diagram in KV5xP144M240RM.pdf is incorrect, the  /2 divider is NOT included in the feedback loop. It gives the formula to compute the VCO and MCGPLLCLK clock frequency and corresponding code.

Download Kinetis M bare-metal drivers and software examples installation file. Changes in 4.1.6 : Modified FreeRTOS kernel to disable all interrupts prior entry to critical section and enable all interrupts upon exiting from critical section. This kernel behavior is compatible with standard FreeRTOS port to the ARM Cortex-M0 core. All freertos_cfg header files updated to reflect kernel change. Updated PLL_Disable macro and Quad Timer driver. Added UART_SetBaudRate macro. Removed RCM_ClrResetFlags macro. Fixed issue of generating callback events after conversion for these ADC channels with interrupt disabled.

Some of our customers encountered clock stretching issue when using the I2C. Actually the first should been in mind is the clock stretching is usually done by the slave, not the master.  In the case for the Kinetis as master to connect with I2C device, the clock stretching should been done by the slave device. In this case the slave device should hold the clock signal low until it has data available. There isn’t anything that needs to be done to enable clock stretching on the master side. So how the code do with the clock stretching? The slave should toggling read_start high first and reading the data register to actually start the transfer. Be remember that the read from the data register is what actually triggers the transfer. Customer always missed this point.

1. Kinetis L系列将NMI和Reset管脚复用成GPIO需要注意的问题 2. 如何在IAR、Keil和Codewarrior中禁止掉Kinetis的NMI脚 3. Kinetis Reset管脚与外部看门狗/复位芯片接法 4. Kinetis L系列外部IO中断分配问题 5. KL2x/KL4x使用USB模块时需要注意VOUT33管脚的接法 6. Kinetis K系列SPI接口设计注意事项 7. Kinetis芯片Reset管脚出现方波的原因及解决办法

Many customers reported that their ADC function works on FRDM-KL27Z board but meet issue on their own board. We need to pay attention to the difference between the ADC reference voltages of different packages (on board MKL27Z64VLH4 is 64LQFP package). This tip introduce the ADC Reference Options on KL17/KL27 32/36pin package Part number involved: 32-pins 36-pins MKL17Z32VFM4 MKL17Z32VDA4 MKL17Z64VFM4 MKL17Z64VDA4 MKL27Z32VFM4 MKL27Z32VDA4 MKL27Z64VFM4 MKL27Z64VDA4 PTE30/VREF_OUT- connected as the primary reference option on 36-pin and below packages VDDA/VSSA - connected as the VALT reference option   ADCx_SC2[REFSEL] selects the voltage reference source used for conversions.   About the primary reference option: When on-chip 1.2V VREF is enabled, PTE30 pin must be used as VREF_OUT and has to be configured as an analog input, such as ADC0_SE23 (PORTE_PCR30[MUX] = 000). Notice: this pin needs to connect a capacitor to ground.   PTE30 can also be used as an external reference voltage input as long as PTE30 is configured as analog input and VREF module is disabled. It means you can connect external reference voltage to PTE30 pin and use it as ADC reference voltage. (For example 3.3V) KL17P64M48SF2RM     Kinetis KL17: 48MHz Cortex-M0+ 32-64KB Flash (32-64pin) (REV 4.1) KL27P64M48SF2RM     Kinetis KL27: 48MHz Cortex-M0+ 32-64KB Flash (32-64pin) (REV 4.1)

  MCU Bootloader2.0.0 enables quick and easy programming of Kinetis MCUs through the entire product life cycle, including application development, final product manufacturing, and beyond. It supports many kinds of peripherals, include UART, I2C, SPI, USB, CAN and so on. Among these peripherals, UART is most common used. In reference manual, it only says that feature can be turned on or off by using #define statement in bootloader_config.h. In fact, you can use UART0 by default. But if you want to use other UART port, change TERM_PORT_NUM to other value is useless. If you traced this value, you’ll find it is not used at all, nor the TERMINAL_BAUD. Here we use FRDM-KV31F512 as the example. We want to download image by UART2. First, we should modify peripherals_pinmux.h. #define BL_ENABLE_PINMUX_UART2 (BL_CONFIG_SCUART)     //line 38   //! UART pinmux configurations #define UART2_RX_PORT_BASE PORTE #define UART2_RX_GPIO_BASE PTE #define UART2_RX_GPIO_PIN_NUM 17               // PIN 16 in the PTB group #define UART2_RX_FUNC_ALT_MODE kPORT_MuxAlt3   // ALT mode for UART0 RX #define UART2_RX_GPIO_ALT_MODE kPORT_MuxAsGpio // ALT mode for GPIO functionality #define UART2_RX_GPIO_IRQn PORTE_IRQn #define UART2_RX_GPIO_IRQHandler PORTE_IRQHandler #define UART2_TX_PORT_BASE PORTE #define UART2_TX_GPIO_PIN_NUM 16             // PIN 17 in the PTB group #define UART2_TX_FUNC_ALT_MODE kPORT_MuxAlt3 // ALT mode for UART0 TX   The original define is UART0, here we change it to UART2. It is strongly recommended to do so. Otherwise you’ll find that UART can’t work at all. Another comment here is PTE16 and PTE17 is conflict with SPI. You must disable SPI or change SPI function to other pins.   Next we must modify peripherals_KV31F512.h. const peripheral_descriptor_t g_peripherals[] = { #if BL_CONFIG_SCUART    // UART0    {.typeMask = kPeripheralType_UART,      .instance = 2, // change this value from 0 to 2      .pinmuxConfig = uart_pinmux_config,      .controlInterface = &g_scuartControlInterface,      .byteInterface = &g_scuartByteInterface,      .packetInterface = &g_framingPacketInterface },   Although there is a baud rate definition TERMINAL_BAUD, but it is never used too. MCU bootloader2.0.0 use auto baud rate detection. When power on, bootloader will go to autobaud detection mode. KinetisFlashTool sends ‘0x ’ every second. Bootloader check this byte and calculate baud rate.   After getting this value, bootloader will change to normal communication mode. Baud rate will not change until reset. If blhost is used, subsequent blhost invocations must specify the same baud rate as was used for the initial invocation unless the bootloader is reset. If the baud rate is not specified using the -p COMx, <baudrate> option, the UART baud rate will be set to 57600. Since Kinetis MCU UART module don’t have auto frequency detect function, the bootloader detects frequcny by software. It uses GPIO interrupt and timer to measure frequency. But in bootloader, there is only code for UART0, there isn’t code for other UART port. We must add the code. In hardware_init_KV31F512.c, modify the function get_uart_clock()   uint32_t get_uart_clock(uint32_t instance) {    switch (instance)    {        case 0:        case 1:            // UART0 and UART1 always use the system clock            return SystemCoreClock;        case 2:            return get_bus_clock();        default:            return 0;    } }   KV31 has 4 UART, include three UART modules and one low-power UART. They have different clock source. UART0 and UART1 use System clock while UART2 and LPUART0 use Bus clock. Thus， we finished the work. UART2 can work as the download port now.

Hi,All Our team have developed the K60's peripheral derives lib which is open source and open source firmware library. the The open source lib have these feature just as follow: 1\The setup code based on the CMSIS Standard; 2\The lib include most of peripherals of K60 such as ADC,DAC,DMA,CAN,FTM,LPTMR, ENET,FLASH,FLexBUS,GPIO,IIC,MCG,PDB,SPI,USB,TSI,UART,WDOG,SDHC,PIT,etc. 3\All of the peripheral initiate function are based on the a structure variable Struct format. 4\Add parts of Freescale USB Stack into the lib such as USB CDC and USB HID mouse. 5\We also develop relative example projects to demonstrate how to use the library for the peripheral. All of the project are created by the IAR for ARM Ver.6.4. The attach is the code. We divide the code into two parts. One part is driver lib, and another part is project. PS 1:All of the code comments are Chinese, please forgive. PS 2:All of drivers is on the \lib\LPLD\HW.      The K60 project need Unzip into the \porject\. PS 3:The code has many place that need update and improve. if you have any doubt and opinions,please contact us.support[AT]lpld.cn Best Regards Wang

The SAI of Kinetis supports 4 modes:normal mode, network mode, I2S mode, AC97 mode, the documentation give the brief introduction about the 4 modes, give the waveform of the 4 modes.

This document introduces basic usage of NVIC based on Freescale Kinetis. please see the attached document for details.