This document includes two chapters , chapter 1 is about how to use printf() to print string in KSDK1.3 project , the usage in project without MQX has been introduced on another document, you can find it here : https://community.freescale.com/docs/DOC-104349 , so in this DOC I only introduce how to use the printf() in KSDK MQX- Lite and KSDK MQX-Standard project .   Chapter 2 introduces how to check which UART port is used when use printf() to print string on the FRDM board and TOWER board .   In sum, only the project of “MQX standard” use it own driver for printf(), so we need delete the driver “fsl_debug_console”. In other SDK+PE projects , they all use the driver of “fsl_debug_console” for printf().

The USB stack in ksdk 1.3 has provided a macro of “USBCFG_DEV_ADVANCED_SUSPEND_RESUME” , while the RM says “suspend/resume is not implemented yet.”, but if you looks into the source code, you may find APIs like USB_Suspend_Service() which is reserved for further implementation, so users may use these APIs as a starting point to add suspend and resume feature in ksdk 1.3. The test is based on FRDM-KL27Z, dev_hid_mouse_bm demo. And before we modify the device stack, we have to clone a copy of this demo. Set USBCFG_DEV_ADVANCED_SUSPEND_RESUME to 1 to releases APIs related with suspend and resume features. But we will have the following errors after compile, that is because remote resume function is not supported by KL27. so we should disable it for this device, with the help of #if USBCFG_DEV_ADVANCED_SUSPEND_RESUME == 1 && FSL_FEATURE_USB_KHCI_HOST_ENABLED == 1. For example, like below: 2.Further implement USB_Suspend_Service() and USB_Resume_Service() to let them notify the upper layer application on the event of suspend/resume. With reference of USB_Error_Service() and Don’t forget to add two more events for suspend and resume. 3.USB module has two types of resume interrupt , one is sync resume , issued by the bit of ISTAT[RESUME] bit, the other is async resume, issued by the bit of TRC0[USB_RESUME_INT], so we have to monitor these two interrupt status flag in the ISR, as below: And so we have modify the resume and sleep interrupt services for supporting the async resume interrupt as below: 4.Modify application and add code to handle suspend and resume event, in this case, such kind of events are handled in USB_App_Device_Callback() 5.Verify the hid_mouse demo with USB 2 CV tool from usb.org Select the FS device with VID 15a2 from the list. Test passed! if you print some messages on the event of suspend and resume, you will see something like below from the Terminal channel. 6. Now we can add low power mode switch function in the main application code to meet the suspend current limitation specified by USB spec, with reference of power_manager_hal_demo for frdmkl27z, and for this case, add code in USB_App_Device_Callback() of mouse.c to tell the main application when to enter low power mode. Please also note Don’t enter low power mode in this callback function, as it is called by the interrupt service, so if the device enter low power mode during interrupt, that would prevent the following resume interrupt happen, so the device never wake up! For more details on the implementation, please refer to the attached mouse.c 7.Test low power mode current:   Before test, please do the following modification to the FRDM-KL27Z board: Please note, if your board has the following jumpers, no need to remove R7,R21 and R83, just keep J19 and J22 open during the test. Select the low power mode you are going to test from the Ternimal: Leave KL27 USB port (J10) open and power the board with USB SDA port, that would make the device enter suspend interrupt out of reset. And you may also see the current vary with power mode switch with the help of USB 2 CV tool. I have tested wait, stop and vlps modes, the current measured under these modes are shown as below: Wait: Stop: VLPS: So it is recommend using VLPS mode during USB suspend mode as it far below the suspend current specified in USB spec (500uA). 8. Patch and demo code Please replace the following files with the attached one, as well as the mouse.c in dev_hid_mouse_bm demo. Recompile the stack and application code. C:\Freescale\KSDK_1.3.0\usb\usb_core\device\include\MKL27Z644 usb_device_config.h C:\Freescale\KSDK_1.3.0\usb\usb_core\device\sources\controller usb_dev.h usb_dev.c usb_framework.c C:\Freescale\KSDK_1.3.0\usb\usb_core\device\sources\controller\khci device_khci_interface.c khci_dev.c khci_dev.h C:\Freescale\KSDK_1.3.0\usb\usb_core\device\include usb_device_stack_interface.h C:\Freescale\KSDK_1.3.0\examples\frdmkl27z\demo_apps\usb\device\hid\hid_mouse mouse.c

Very simple, but very often asked question - how can I import example in KSDK general? The easiest way is import .wsd file, it is a set of all needed files for your project.   1. Open KDS, go to Project Explorer Window and by right click select Import option 2. Choose Existing Projects Sets option 3. Click on Browse and select the project, which you would like to work. In case of KSDK 2.0 go to C:\Freescale\<ksdk2.0_package>\boards\frdmk64f\demo_apps\lwip\lwip_tcpecho\freertos\kds   4. You will see the demo project successfully imported in your Project Explorer window and now you can compile and execute demo project.   Enjoy! Iva

Hi all,   there is a simple modification of ftm driver example based on KSDK 1.3, KDS 3.0 on FRDM-K22F.   enabling clocks for PORTs in hardware_init.c   void hardware_init(void) {    /* enable clock for PORTs */   CLOCK_SYS_EnablePortClock(PORTA_IDX);   CLOCK_SYS_EnablePortClock(PORTD_IDX);   CLOCK_SYS_EnablePortClock(PORTE_IDX);    PORT_HAL_SetMuxMode(PORTA,1u,kPortMuxAlt3);//red   PORT_HAL_SetMuxMode(PORTA,2u,kPortMuxAlt3);//green   PORT_HAL_SetMuxMode(PORTD,5u,kPortMuxAlt4);//blue    /* Init board clock */   BOARD_ClockInit();   dbg_uart_init(); } function for converting HSV to RGB color palette downloaded from hsv2rgb.cpp - shiftpwm - Arduino library to PWM many outputs with chained shift registers. - Google Project Hosting   setting ftm parameters for red, green and blue color, for red color: ftm_pwm_param_t ftmParamR = {         .mode                   = kFtmEdgeAlignedPWM,         .edgeMode               = kFtmLowTrue,         .uFrequencyHZ           = 24000u,         .uDutyCyclePercent      = 0,         .uFirstEdgeDelayPercent = 0,     };   setting PWM output for each color in infinite loop         FTM_DRV_PwmStart(BOARD_FTM_INSTANCE, &ftmParamR, 6);         FTM_DRV_PwmStart(BOARD_FTM_INSTANCE, &ftmParamG, 7);         FTM_DRV_PwmStart(BOARD_FTM_INSTANCE, &ftmParamB, 5);   forwarding parameters to hsv2rgb() hsv2rgb(hue,255,255,&red,&green,&blue,255);   changing hue and checking overflow of hue         hue++;         if(hue>=360)hue=0;   normalizing from 0-255 to 0-100 percent of PWM pulse width for each color         ftmParamR.uDutyCyclePercent = (uint8_t)(((float)red/255.0)*100.0);         ftmParamG.uDutyCyclePercent = (uint8_t)(((float)green/255.0)*100.0);         ftmParamB.uDutyCyclePercent = (uint8_t)(((float)blue/255.0)*100.0);   That´s all!   Importing example extract ftm_rainbow.zip to C:\Freescale\KSDK_1.3.0\examples\frdmk22f\driver_examples Go to KDS, import file and choose .wsd file After then don´t forget compile library first and then project.     I hope you will enjoy the demo 🙂   Iva

Hi all,   Please find attached document describing how to get started with FreeRTOS and KSDK1.2 using KDS3.0.   For information about creating a new KSDK project with MQX please see the following document. How To: Create a New MQX RTOS for KSDK Project in KDS   Regards, Carlos

This demo is based on adc12_polling example , and so far I just tested it with FRDM-KE15Z, so please download SDK_2.0_FRDM-KE15Z.zip from Welcome to MCUXpresso | MCUXpresso Config Tools before you try that demo.   After opening the project, you have to import edma and dmamux driver code as below: then you may replace adc12_polling.c with the attached one.   compiling and run, you may see the console output ADC results like this.   Hope that helps, -Kan Original Attachment has been moved to: adc12_polling.c.zip

Hello dear community:   The attached document is an introductory guide to the Clock configuration system and Power manager system in KSDK v1.3 and its configuration using Processor Expert.   Some topics covered:   - KSDK Clock Manager system- Clock manager notification framework - Clock switch callbacks - KSDK Power Manager system - Power manager notification framework - Power mode switch callbacks - Creating and managing clock/power configurations with Processor Expert. - Managing custom clock/power callbacks with Processor Expert.   There is also an example project attached created for the FRDM-KL27Z board, but it can be taken as reference to use a different evaluation board or custom board. This project was developed by colleague Adrian Sanchez Cano.   I hope you find it useful. In case of any doubts please do not hesitate to ask.   Regards! Jorge Gonzalez

Hello community,   This document is the continuation of the document Line scan camera with KSDK [ADC + PIT + GPIO] which shows the ease of use of the peripheral drivers from Kinetis SDK applied to the Freescale Cup smart car. This time I bring to you a document which explains how to control the speed in DC motors and the position in servomotors with KSDK step-by-step. This document is intended to be an example for the TPM and the GPIO peripheral drivers usage.   The required material to run this project is: A Servomotor (the project supports up to two servomotors, one servomotor is included in the smart car kit). Two DC motors (included in the smart car kit). FRDM-KL25Z based on the Kinetis Microcontroller KL25Z. FRDM-TFC shield. Mini-USB cable.   This material can be bought in The Freescale Cup Intelligent Car Development.         The document Create a new KSDK 1.2.0 project in KDS 3.0.0 explains how to create a new KSDK project for the KL25Z MCU. The result of this document is the project BM-KSDK-FRDM_KL25Z. The document Controlling speed in DC motors and position in servomotors with the FRDM-KL25Z and the Kinetis SDK [FTM + GPIO] explains how to implement an application to control the motors. The result of this document is the project BM-KSDK-FRDM_KL25Z_LINE_SCAN_CAMERA-SERVO-DC_MOTORS.   If you are interested in participate in the Freescale Cup you could take a look into the groups University Programs, The Freescale Cup Technical Reports TFC - Mexico, TFC - Brazil, TFC - China, TFC - Malaysia, TFC - Japan, TFC - North America, TFC - India, TFC - Taiwan, The Freescale Cup EMEA.   Best regards, Earl Orlando Ramírez-Sánchez Technical Support Engineer Freescale Semiconductor

Hello community,   This document is the continuation of the documents Line scan camera with KSDK [ADC + PIT + GPIO] and Controlling speed in DC motors and position in servomotors with KSDK [FTM + GPIO] which show the ease of use of the peripheral drivers from Kinetis SDK applied to the Freescale Cup smart car. This time I bring to you a document which explains an easy way to detect the track's line from the data acquired with the linear camera.   The required material to run this project is: A Servomotor (the project supports up to two servomotors, one servomotor is included in the smart car kit). Two DC motors (included in the smart car kit). Line scan camera (the project supports up to two cameras). FRDM-KL25Z based on the Kinetis Microcontroller KL25Z. FRDM-TFC shield. Mini-USB cable.   This material can be bought in The Freescale Cup Intelligent Car Development.         If you are interested in participate in the Freescale Cup you could take a look into the groups University Programs, The Freescale Cup Technical Reports TFC - Mexico, TFC - Brazil, TFC - China, TFC - Malaysia, TFC - Japan, TFC - North America, TFC - India, TFC - Taiwan, The Freescale Cup EMEA.   Best regards, Earl Orlando Ramírez-Sánchez Technical Support Engineer Freescale Semiconductor

When you need to create copy/clone of i.g. web_hvac example for FreeRTOS as standalone project, you can face this issue. It is impossible to work with the copy. Why? There is missing folder for RTOS and LIB.   ISSUE: You start to clone example There is missing folder for RTOS Also missing library ksdk_freertos_lib which is needed for the example Impossible to compile the project, because folder mentioned above are missing in the project WORKAROUND: Just add the folder rtos from C:\Freescale\KSDK_1.3.0 The same for the library, you add to the folder from C:\Freescale\KSDK_1.3.0\lib Import .wsd file Wsd file was successfully imported, library is included Build successful finished   I hope this helps you. Iva

At the moment the best way to create a new KSDK example project is copying one of the existing projects in the /demos folder and renaming all the files and text to the new name. I've created a simple script that does all the work for you.   To run, just place the .exe or Perl script in the C:\Freescale\KSDK_1.0.0\demos folder and run. By default it'll copy the "hello_world" project to a new directory, and change all the "hello_world" text and files names to your new project name. Pretty straight forward, but much easier and less prone to error than doing it by hand. I've attached both the Perl source and a .exe created from that perl script. There is a command line option to specify the project to be copied, but by default it uses the hello_world one.   Hope you find it useful!

This example project shows how to use CMSIS DSP functions to implement a digital filter. The project is based on Kinetis KV31F512.   It first generates a mixed signal which is composed by two sine waves.  Then it uses PDB to trigger DAC every 200 microsecond and output the signal through DAC, so that the mixed signal can be displaying on oscilloscope.   With QEDesign tool, a lowpass filter is designed, the filter coefficients are used directly to initialize the FIR function supplied by CMSIS DSP library. This example calls the FIR functions in CMSIS DSP lib, and the filtered signal is output though DAC module.

What is needed: SW: KDS 3.2 KSDK 2.0 Hercules (Visual Studio 2015)   HW: FRDM-K64F Ethernet Cable   Install KSDK 2.0 Be sure, that you have downloaded correct package KSDK 2.0 for FRDM-K64F, for all procedure please follow instructions mentioned at How to: install KSDK 2.0   Install KDS 3.2 Be sure, that you will work with the newest Kinetis Design Studio v.3.2, please see New Kinetis Design Studio v3.2.0 available for more details.   Import demo example For start with this example we will build on existing demo project, located under C:\Freescale\<ksdk2.0_package>\boards\frdmk64f\demo_apps\lwip\lwip_tcpecho\freertos\kds Please, import this example according to the procedure described at How to: import example in KSDK   Start with programming Let´s start with programming example for LED RGB controlling via ethernet   Checking and parsing incoming packets This packet is divided into header and data. The header represents first two bytes and the remaining three bytes are occupied by data. The zero byte is 0xFF and the first byte must be 0x00. The second byte represents red color, the third byte green color and the last fourth byte presents blue color. lwip_tcpecho_freertos.c Server is listening on port 7 and waiting for a connection from the client. If the client sends 5B, it find out according to header whether it is correct 5B. If so, each RGB parts will be parsed individually and set the LED accordingly.       while (1)     {         /* Grab new connection. */         err = netconn_accept(conn, &newconn);         /* Process the new connection. */         if (err == ERR_OK)         {             struct netbuf *buf;             u8_t *data;             u16_t len;               while ((err = netconn_recv(newconn, &buf)) == ERR_OK)             {                 do                 {                     netbuf_data(buf, &data, &len);                     if(len==5){                         if(data[0]==0xFF && data[1]==0x00){                             if(data[2]>0){                                 LED_RED_ON();                             }else {                                 LED_RED_OFF();                             }                             if(data[3]>0){                                 LED_GREEN_ON();                             }else {                                 LED_GREEN_OFF();                             }                             if(data[4]>0){                                 LED_BLUE_ON();                             }else {                                 LED_BLUE_OFF();                             }                             //err = netconn_write(newconn, "ok", 2, NETCONN_COPY);                         }                     }                 } while (netbuf_next(buf) >= 0);                 netbuf_delete(buf);             }             /* Close connection and discard connection identifier. */             netconn_close(newconn);             netconn_delete(newconn);         }     }   Initializing LEDs   It is needed to set all LEDs in pin_mux.c in BOARD_InitPins() function and initialize in lwip_tcpecho_freertos.c in main() function.   pin_mux.c Go to BOARD_InitPins() and at the end of the function add these lines: Copy and paste to your project     CLOCK_EnableClock(kCLOCK_PortB);     CLOCK_EnableClock(kCLOCK_PortE);     PORT_SetPinMux(PORTB, 21U, kPORT_MuxAsGpio);     PORT_SetPinMux(PORTB, 22U, kPORT_MuxAsGpio);     PORT_SetPinMux(PORTE, 26U, kPORT_MuxAsGpio);   lwip_tcpecho_freertos.c Go to main() and initialize LEDs Copy and paste to your project LED_RED_INIT(LOGIC_LED_OFF); LED_GREEN_INIT(LOGIC_LED_OFF); LED_BLUE_INIT(LOGIC_LED_OFF); Set up connection on PC site Set PC on 192.168.1.100   Controlling the application Hercules For test connection you can use Hercules. After testing don´t forget disconnect Hercules, server can handle only one TCP connection. IP Address of the board is set on 192.168.1.102 It works - the board is green lighting:   Visualization in Visual Studio 2015 For better controlling we will create application in Visual Studio 2015. Start with new project and create new form according this:   And set functionality for all items. Client connects to the IP Address on port 7 and sends our packet according selected colour. For red color are data set on { 0xFF, 0x00, 1, 0, 0 };, for yellow { 0xFF, 0x00, 1, 1, 0 }; etc.   Form1.cs public partial class Form1 : Form     {         Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);          public Form1()         {             InitializeComponent();                      }          private void button1_Click(object sender, EventArgs e)         {             try              {                 s.Connect(IPAddress.Parse(textBox1.Text), 7);                 byte[] data = { 0xFF, 0x00, 0, 0, 0 };                 groupBox1.Enabled = true;                 button1.Enabled = false;                 s.Send(data);                  textBox1.Enabled = false;             }             catch              {                 MessageBox.Show("Connection failed");             }         }          private void button_red_Click(object sender, EventArgs e)         {             if (s.Connected) {                 byte[] data = { 0xFF, 0x00, 1, 0, 0 };                 s.Send(data);             }         }          private void button_green_Click(object sender, EventArgs e)         {             if (s.Connected)             {                 byte[] data = { 0xFF, 0x00, 0, 1, 0 };                 s.Send(data);             }         }          private void button_blue_Click(object sender, EventArgs e)         {             if (s.Connected)             {                 byte[] data = { 0xFF, 0x00, 0, 0, 1 };                 s.Send(data);             }         }          private void button_black_Click(object sender, EventArgs e)         {             if (s.Connected)             {                 byte[] data = { 0xFF, 0x00, 0, 0, 0 };                 s.Send(data);             }         }          private void button_white_Click(object sender, EventArgs e)         {             if (s.Connected)             {                 byte[] data = { 0xFF, 0x00, 1, 1, 1 };                 s.Send(data);             }         }          private void button_cyan_Click(object sender, EventArgs e)         {             if (s.Connected)             {                 byte[] data = { 0xFF, 0x00, 0, 1, 1 };                 s.Send(data);             }         }          private void button_magenta_Click(object sender, EventArgs e)         {             if (s.Connected)             {                 byte[] data = { 0xFF, 0x00, 1, 0, 1 };                 s.Send(data);             }         }          private void button_yellow_Click(object sender, EventArgs e)         {             if (s.Connected)             {                 byte[] data = { 0xFF, 0x00, 1, 1, 0 };                 s.Send(data);             }         }     }     Enjoy! 🙂   Iva

There was a macro definition issue in the flexcan driver of ksdk 2.0, the macros of RX_FIFO_STD_MASK_TYPE_B/C were defined based on maco FLEXCAN_ID_STD(id), for example: #define FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH(id, rtr, ide) \ (((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \ (FLEXCAN_ID_STD(id) << 16)) /**< Standard Rx FIFO Mask helper macro Type B upper part helper macro. */ but FLEXCAN_ID_STD(id) is defined for flexCAN Message Buffer structure, so FLEXCAN_ID_STD(id)  is a value of "id" left-shifted by 18,  according to the spec. while for RX FIFO ID table structure, the spec of Type B/C is different. so we should use the value of id directly to define the type B and type C Rx Frame Identifier. For example, #define FLEXCAN_RX_FIFO_STD_MASK_TYPE_B_HIGH(id, rtr, ide) \ (((uint32_t)((uint32_t)(rtr) << 31) | (uint32_t)((uint32_t)(ide) << 30)) | \ ((id & 0x7FF) << 19)) /**< Standard Rx FIFO Mask helper macro Type B upper part helper macro. */   This patch doesn't affect FlexCAN operation related with message buffers , neither with RX FIFO A type ID table.   Please kindly refer to the attachment for details.   Sorry for the inconvenience that has caused.   -Kan

This video shall guide you on how to build and run the demo applications provided by Kinetis SDK.   Overview: Classes of software examples Importing and building library file project Importing, building and running a demo application   Software/Tools used: Kinetis Design Studio V3.0.0 Kinetis SDK V1.2.0 FRDM-K64F Board   Related Documents: Getting Started with Kinetis SDK v.1.2 - http://cache.freescale.com/files/soft_dev_tools/doc/support_info/KSDK12GSUG.pdf Kinetis SDK v.1.2 Demo Applications User’s Guide - http://cache.freescale.com/files/soft_dev_tools/doc/support_info/KSDK12DEMOUG.pdf Kinetis SDK FAQ - https://community.freescale.com/docs/DOC-102926   Related videos: Installation of KDS and Kinetis SDK - https://community.freescale.com/videos/3281 Installation of OpenSDA Firmware on Freedom Board - https://community.freescale.com/videos/3282 Debugging with Kinetis Design Studio - https://community.freescale.com/videos/3283 Using Processor Expert in KDS - https://community.freescale.com/videos/3297 KSDK GPIO driver with Processor Expert - https://community.freescale.com/videos/3195

So far the composite msd_cdc demo from ksdk 1.3 just supports ram disk application, to have the SD card support just as the dev_msd demo, you have to go through the following steps: Add platform/composite/src/sdcard/fsl_sdhc_card.c and platform\drivers\src\sdhc\fsl_sdhc_irq.c to the project. Add project including path: platform\composite\inc and platform\drivers\inc. Change usb\example\device\composite\msd_cdc\disk.c as attached file      Change usb\example\device\composite\msd_cdc\disk.h as attached file      Change usb\example\device\composite\msd_cdc\hardware_init.c as attached file. Compile the demo and let it go, the PC would recognize the MSD and CDC device,  but might need you install the CDC driver, use the one from the folder of "C:\Freescale\KSDK_1.3.0\examples\twrk60d100m\demo_apps\usb\device\cdc\virtual_com\inf". With SD card inserted , you may see the removable disk, and format the disk just like below: Copy a ~50M file to this disk eject the disk after done, and then pull and plug the device again, you may verify the copied file with fc.exe command This solution has been tested on TWR-K60D100M with TWR-SER, both bm and mqx examples are verified ok, please kindly refer to the attached files for more details.

This solution is just for you, who does not enjoy finding documentation for KSDK does not enjoy many opened windows (all in one) often ask where is the documentation for KSDK like an overview will appreciate embedded help   For detailed information please see KSDK 1.3.0 Documents Plugin for KDS 3.0.0   I hope you will really invite this tool. Iva

This patch adds Segment LCD (SLCD) examples for the Kinetis Tower boards with the TWRPI-SLCD module.  It reuses the SLCD driver included in the "Kinetis SDK 1.2.0 Standalone for KL33Z for the FRDM-KL43Z", and ports the example to boards using the TWRPI-SLCD module.    The patch was written for KSDK v1.2.0, found at www.freescale.com/KSDK.  To install the patch, unzip to the KSDK installation directory, by default it is C:\Freescale\KSDK_1.2.0.  Only the Debug Build Configurations in the libraries and example applications were updated for these examples.  The Release Build Configurations will need to be updated before using.  The boards supported with these examples are:   TWR-KL46Z48M   TWR-KL43Z48M   TWR-KL46Z48M board example is provided with a project for Kinetis Development Studio (KDS) toolchain, and tested with KDS v3.0.0.  The path for this example is at  \KSDK_1.2.0\examples\twrkl46z48m\demo_apps\slcd_low_power_demo\kds.  The example also includes the KDS .WSD working set file.  When this is imported to KDS, it imports both the platform library and example application.  The example is written to display time on the TWRPI-SLCD, and will display mm:ss.   TWR-KL43Z48M board example is provided with a project for Kinetis Development Studio (KDS) toolchain, and tested with KDS v3.0.0.  The path for this example is at \KSDK_1.2.0\examples\twrkl43z48m\demo_apps\slcd_low_power_demo\kds.  The example also includes the KDS .WSD working set file.  When this is imported to KDS, it imports both the platform library and example application.  The example is written to display time on the TWRPI-SLCD, and will display mm:ss.

The SAR-ADC of KM family supports using 4 triggering signals to trigger SAR-ADC, for the KM sub-family with PDB, it is okay to use PDB. But for the KM family without PDB module, it is difficult to generate  4 triggering signals to trigger SAR-ADC. The DOC introduce how to use quadTimer to generate 4 sequential triggering signals to trigger SAR-ADC so taht the SAR-ADC can get 4 samples in one conversion.

Problem: Unknown error in Task error code column (in Task List view from MQX TAD) is displayed when debugging MQX project in IAR with KSDK.   Cause: This error means that TAD cannot find mqx.tad file with messages for error codes. In this case code 0x0 means MQX_OK, so it might lead user to believe there is some error with task but it is not. IAR TAD was made before first KSDK release, so there is no way for IAR TAD to find mqx.tad file because it isn’t part of KSDK. It works only when classic MQX is also installed on computer.   IAR TAD finds mqx.tad file this way (written as example for MQX 4.2): It takes _mqx_version_number defined as hex number 0x04020000 in “mqx\source\kernel\mqx.c” Looks into windows registry key of specified MQX version “HKEY_LOCAL_MACHINE\SOFTWARE\Freescale\FreeScale MQX\4.2” Takes its path variable "PATH"="C:\\Freescale\\Freescale_MQX_4_2" Tries to find mqx.tad file in directory specified in PATH or in its child folder "\tools\tad\" (e.g. C:\Freescale\Freescale_MQX_4_2\tools\tad\mqx.tad)   Solution: Use of fake registry key, which will point to classic MQX installation or some blank directory with only mqx.tad file (e.g. C:\fake_mqx\mqx.tad or better C:\Freescale\KSDK_1.2.0\tools\tad\mqx.tad). This registry key must use MQX version specified in used KSDK (for KSDK 1.2 and 1.3 it is 0x05000200, for 1.1 0x05000001 and for 1.0 0x04010000). Registry key might look like this: Then TAD translates error codes to messages successfully and path to mqx.tad file can be checked in Check for errors view under Show MQX TAD Diagnostics. Attached is example registry key with \tad\mqx.tad structure for placing into KSDK\tools directory.