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1. II hooks while app_probe c contains initialization code for uC Probe includes h contains a master include file used by the application os_cfg h is the uC OS II configuration file and probe_com_cfg h contains user modifiable configuration constants for pC Probe Lastly oS Probe are the Microchip MPLab IDE and C30 Compiler Tools project files Micrium Software EvalBoards Microchip Explorer16 PIC24FJ128 MPLAB_C30 BSP This directory contains the Board Support Package for the Explorer16 evaluation board and the PIC24 MCU While some of the code in this directory may work on other PIC24 derivatives routines that are hardware dependent such as LED_On will require modification depending on the hardware design of your EVB This directory contains bsp c bsp h bsp_a s psp lede p24FJ128GA010 gld p24FJ128GA010 h p24FJ128GA010 inc 10 Micripm uC OS II and pC OS Probe for the Microchip PIC24 1 04 MPLab IDE We used the MPLab IDE and C30 Compiler Tools to test the PIC24 example You can of course use pC OS II with other tools Figures 1 3 and 1 4 show the project build options and figure 1 5 shows the MPLab source tree respectively See section 1 01 for more information about the build options Build Options For Project OS Probe mcp 2 x Build Options For Project OS Probe mcp 21 xi Directories Trace ASM30 C30 Suite MPLAB ASM30 MPLaBC3O MPLABLINK30 MPLAB ASM30
2. MPLAB C3O MPLABLNK30 Directories Trace ASM30 C30 Suite Categories Ji Categories All Options nd M Generate Command Line M Generate Command Line M Code Model p Location of Constants Default Default M Output File Format C Large code model C Constants in data space C COFF Small code model C Constants in code space ELF DWARF Data Model Scalar Model aie ities C Default C Default Build normal target invoke LINK30 Large data model Large scalar model Build library target invoke LIB30 Small data model Small scalar model T Inherit global settings Restore Defaults Restore Defaults fs mlarge data mlarge scalar omf e T Use Altemate Settings fs mnlarge data mlarge scalar Cancel Apply Help Figure 1 3 Figure 1 4 11 Micripm uC OS II and pC OS Probe for the Microchip PIC24 E 0S Probe mcw a OS Probe mcp A Source Files of app c B app_hooks c E app_probe c i JA bsp c E bsp_a s bsp_Icd c led c Icd_os c lib_mem c lib_str c os_core c os_cpu_a s OS_cpu_c c os_cpu_util_a s os_dbg c os_flag c os_mbox c os_mem c os_mutex c os_probe c os_q c os_sem c os_task c os_time c os_tmr c probe_com c probe_com_os c probe_rs232 c probe_rs232_os c E probe_rs232a s 7 B probe_rs232c c Header Files db app_cfg h bsp h cpu h cpu_def h includes h Ied h lib_def h lib_mem h lib_str h os_cfg h os_cpu h os_probe h p24FI128GA010
3. depending on which timer is enabled for use with the OS Ticker These ISR functions both call Tmr_TickISR_Handler as described above in Listing 3 3 Only 1 timer for the OS Ticker may be enabled at a time You should note that ALL of your ISRs should be written in assembly where OS related processing may take place before calling an interrupt handler function of the form interrupt void MyISR_Handler void Refer to AN 1024 for details 21 Micripm uC OS II and pC OS Probe for the Microchip PIC24 Licensing If you intend to use pC OS II in a commercial product remember that you need to contact Micrium to properly license its use in your product The use of wC OS II in commercial applications is NOT FREE Your honesty is greatly appreciated References MicroC OS II The Real Time Kernel 2 Edition Jean J Labrosse CMP Technical Books 2002 ISBN 1 5782 0103 9 aaa CMP Books Inc 6600 Silacci Way Gilroy CA 95020 USA Phone Orders 1 800 500 6875 or 1 408 848 3854 Fax Orders 1 408 848 5784 e mail rushorders cmpbooks com WEB _hittp Awww cmpbooks com Micripm 949 Crestview Circle Weston FL 33327 USA 954 217 2036 954 217 2037 FAX e mail Jean Labrosse Micrium com WEB www Micrium com Microchip Technology Inc 2355 West Chandler Blvd Chandler Arizona 85224 6199 USA 480 792 7200 WEB www MicroChip com 22
4. 1 Start the timer L3 3 12 Perform the same procedure for timer 4 instead of timer 2 If BSP_OS_TMR_SEL in BSP H is defined as 4 19 Micripm uC OS II and pC OS Probe for the Microchip PIC24 It should be noted that the timer automatically resets to 0 after a match interrupt is generated See figure 3 1 for more details Listing 3 4 Tmr_TickISR_Handler void Tmr_TickISR_Handler void if BSP_OS_TMR_SEL 2 IFSO amp T2IF 1 endif if BSP_OS_TMR_SEL 4 IFS1 amp T41F endif OSTimeTick 2 This function is called from an assembly interrupt service routine which properly informs uC OS II of the interrupt condition calls the interrupt handler and clears the interrupt source See AN 1024 and the file description BSP_A S for more details L3 4 1 Clear the interrupt source L3 4 2 OSTimeTick is called to handle the pC OS I clock tick The on chip timer generates a time tick by letting the up counter run from 0x0000 to the computed match value configured in Tmr_TickInit After an interrupt is generated the counter resets to zero and continues counting until the next match occurs TMRCNT Interrupt on TMRPRD Match cnts 0x0000 1 Millisecond with OS_TICKS_PER_SEC set to 1000 Figure 3 1 OS Tick Timer Operation 20 Micripm uC OS II and pC OS Probe for the Microchip PIC24 When the selected Timer issues an interrupt the processor vectors to ___T2Interrupt or __T4Interrupt
5. 4 j for i 1 i lt 8 i LED_On i OSTimeDlyHMSM 0 0 0 20 7 for LED_Off i OSTimeDlyHMSM 0 0 0 20 for i 7 i gt 2 i LED_On i OSTimeDlyHMSM 0 0 0 20 LED_Off i OSTimeDlyHMSM 0 0 0 20 i 0 i lt 4 i LED_On 1 LED_On 2 LED_On 3 LED_On 4 OSTimeDlyHMSM 0 0 0 50 LED_Off 1 LED_Off 2 LED_Off 3 LED_Off 4 OSTimeDlyHMSM 0 0 0 50 14 L2 2 1 L2 2 2 L2 2 3 L2 2 4 L2 2 5 L2 2 6 L2 2 7 Micripm uC OS II and uC OS Probe for the Microchip PIC24 BSP_Init is called to initialize the Board Support Package the I Os the tick interrupt and so on BSP_Init will be discussed in the next section OSStatInit computes how fast the CPU runs when OS_TASK_STAT_EN is set to 1 in os_cfg h Initialize uC Probe Probe communication port settings may be adjusted from within probe_com_cfg has well as app_probe c AppTaskCreate is a user defined function for creating additional pC OS II tasks This function is not required and additional tasks could have been created directly within AppStartTask This function has been used to create the AppLCDTask which drives the LCD for this example Shut off all onboard LEDs As with all task managed by pC OS II the task body must be in the form of an infinite loop Tasks managed by wC OS II must never be allowed to exit Instead tasks should be dele
6. Micrium Empowering Embedded Systems ucC OS II uC Probe and the The Microchip PIC24 Using the Explorer 16 Evaluation Board Application Note AN 1017 www Micrium com Micripm uC OS II and pC OS Probe for the Microchip PIC24 Table Of Contents 1 00 Introduction 3 1 01 Port Specific Details 4 1 02 uC Probe 5 1 03 Directories and Files 8 1 04 MPLab IDE 11 2 00 Example Code 13 2 01 Example Code app c 13 2 02 Example Code app_cfg h 16 2 03 Example Code includes h 16 2 04 Example Code os_cfg h 16 2 05 Example Code OS Probe 16 3 00 Board Support Package BSP 17 3 01 Board Support Package p24FJ128GA010 gld 17 3 02 Board Support Package bsp 18 Licensing 22 References 22 Contacts 22 Micripm uC OS II and pC OS Probe for the Microchip PIC24 1 00 Introduction This document shows example code for using pC OS II and wC Probe on a Microchip dsPIC33 processor To demonstrate the dsPIC33 we used a Microchip Explorer 16 Evaluation Board as shown in Figure 1 1 C LCD is used to drive the Hitachi complaint LCD controller This example uses the pC OS II port described in AN 1024 We used the Microchip MPLab IDE and C30 Compiler Tools to demonstrate this application The software versions used were MPLAB v8 02 C30 v2 02 and ASM v2 02 ICD2 Connector RS232 Connection to uC Probe Default Baud 38 400 BPS PIC24 1 running at 16MHZ Figure 1 1 Microchip Explorer 16 Evaluation Board The application co
7. PU This directory contains processor independent files for uC CPU uC CPU contains code for entering and existing critical sections as well as macro definitions for the C programming datatypes used in most Micrium products Specifically this directory includes cpu_def h Micrium Software uC CPU Microchip PIC24FJ128 C30 This directory contains processor port files for wC CPU wC CPU contains code for entering and existing critical sections as well as macro definitions for the C programming datatypes used in most Micrium products cpu h Micripm uC OS II and pC OS Probe for the Microchip PIC24 pC LIB Micrium Software uC LIB This directory contains 1ib_def h which provides defines for useful constants like DEF_TRUE and DEF_DISABLED and macros Micrium Software uC LIB Doc This directory contains the documentation for uC LIB Application Code Micrium Software EvalBoards Microchip Explorer16 PIC24FJ128 MPLAB_C30 0S Probe This directory is the directory that contains the source code for an example running on the Explorer 16 evaluation board It assumes the presence of pC OS II This directory contains app c app_cfg h app_hooks c app_probe c includes h Os cfg hi OS Probe probe_com_cfg h app c contains the example code app_cfg h contains application specific configuration information such as task priorities and stack sizes app_hooks c contains user code for the pC OS
8. bugger module 17 Micripm uC OS II and pC OS Probe for the Microchip PIC24 3 02 Board Support Package bsp We will not be discussing every aspect of the BSP but only cover topics that require special attention Your application code must call BSP_Init to initialize the BSP BSP_Init in turn calls other functions as needed Listing 3 1 MPLab Macros _CONFIG1 JTAGEN_OFF 1 CONFIG2 FNOSC_PRIPLL amp POSCMOD_XT 2 L3 1 1 This macro disables JTAG capabilities of the PIC24 and thus enables the use of all PORT A I O pins which are connected to the onboard LEDs L3 1 2 This macro selects the primary XT oscillator and PLL as the PIC24 core clock source The PLL output frequency is then divided by 2 and fed into the core as SYSCLOCK the core clock frequency In this case SYSCLOCK is 16 MHz Note These macros must be declared in the GLOBAL area of BSP c Listing 3 2 BSP_Init void BSP_Init void LED_Init 1 Tmr_TickInit 2 L3 2 1 We then call LED_Init to initialize the onboard LED I O Pins as outputs L3 2 2 We then call Tmr_TickInit to initialize Timer 2 or Timer 4 depending on the value of BSP_OS_TMR_SEL in BSP H The configured timer is then used to generate interrupts for the wC OS II clock tick The code for this function is described below 18 Micripm uC OS II and pC OS Probe for the Microchip PIC24 Listing 3 3 Tmr_Ticklnit static void Tmr_TickInit vo
9. ctory contains generic workspaces for jC OS II as well as other Micrium software modules Connect Target to PC Currently pC Probe can use RS 232 to retrieve information from the target You should connect a RS 232 cable between your target and computer Load Your ELF File The example projects included with this application note are already configured to output an ELF file If you are using your own project please refer to Appendix A of the uC Probe user manual for directions for generating an ELF file with your compiler Codewarrior generates an ELF file with a abs extension This file is located in a directory named BIN within the sample project directory To load this ELF file right click on the symbol browser and choose Add Symbols Navigate to the file directory select the file and choose OK Configure the RS 232 Options In pC Probe choose the Options menu item on the Tools menu A dialog box as shown in Figure 6 2 left should appear Choose the RS 232 radio button Next select the RS 232 item in the options tree and choose the appropriate COM port and baud rate The baud rate for the projects accompanying this application note is 38 400 baud Start Running You should now be ready to run uC Probe Just press the run button to see the variables in the open data screens update Micripm uC OS II and pC OS Probe for the Microchip PIC24 1 03 Directories and Files The code and docum
10. de is downloaded into Flash using an ICD2 or Real ICE in Programming Mode When the application is started the 8 onboard LED s switch on and off from left to right producing a scrolling like effect Additionally the LCD screen is initialized and displays various messages thoughout the run time of the application Micripm uC OS II and pC OS Probe for the Microchip PIC24 1 01 Port Specific Details This pC OS II port has been designed to operate using the PIC24 Large memory model Furthermore in order to utilize all of the onboard LEDs it is critical that the optional JTAG port be disabled This can be done from the configuration bit screen within MPLab via software during runtime or via Macro in source code Each compiler has different requirements for setting the configuration bits In most cases the configuration bits are set via macro from the top of BSP H However some circumstances require the use of the MPLAB configuration bits as an alternative Both methods should not be used simulataneously The OS port makes use of the on chip PLL In order to select the XT HS EC with PLL oscillator source an MPLab macro has been used at the top of BSP c When enabled the on chip PLL multiplies the primary oscillator by 4 The processor is then clocked at one half of the PLL frequency In this case the PIC24 is running at 16 MHz The OS port assumes the availability of Timer number 2 a B type timer for use with the OS Ticker If y
11. e Target Communication Generic RS 232 0S uCOS II This directory contains OS dependent interface code for the RS 232 specific portion of uC Probe specifically the code necessary to generate an optional Rx packet parse task If you plan to run uC Probe with a different RTOS modifications to the files listed below will have to be made If you are not running an RTOS the following files may be excluded from the build probe_rs232_os c Micripm uC OS II and pC OS Probe for the Microchip PIC24 Micrium Software uC Probe Target Communication Generic RS 232 Ports Microchip PIC24 C30 This directory contains the pC Probe hardware port files for the dsPIC33 processor probe_rs232c c probe_rs232_a s Micrium Software uC Probe Target Communication Generic RS 232 Source This directory contains target independent source code for the pC Probe RS 232 communication layer Specifically this directory contains the following files probe_rs232 c probe_rs232 h Micrium Software uC Probe Target Communication Generic Source This directory contains target independent source code for the wC Probe communication layer Specifically this directory contains the following files probe_com c probe_com h Micrium Software uC Probe Target Plugins uCOS II This directory contains the target independent source code for pC Probe Specifically this directory contains the following files os_probe c os_probe h pC CPU Micrium Software uC C
12. entation of the port are placed in a directory structure according to AN 2002 uC OS II Directory Structure Specifically the files are placed in the following directories yC OS II Micrium Software uCOS II Source This directory contains the processor independent code for uC OS II The version used was 2 86 Micrium Software uCOS II Ports Microchip PIC24FJ128 C30 This directory contains the standard processor specific files for a C OS II port assuming the Microchip MPLab IDE and C30 Compiler Tools In fact these files could easily be modified to work with other tool chains However you would place the modified files in a different directory Specifically this directory contains the following files os_cpu h os_cpu_a s s cp cC os_cpu_util s os_dbg_c os_dbg c is included to provide additional information to Kernel Aware debuggers like IAR s C Spy and is not required for this C OS II port However we recommend building the project with it for reference on future projects uC OS II ports for the Hi Tech iccDSPIC and IAR dsPICC compilers are available upon request yC Probe Micrium Software uC Probe Target Communication Generic OS uCOS II This directory contains the OS dependent interface for the communication layer of uC Probe If you plan to run uC Probe with a different RTOS or without any RTOS the following files would have to be adjusted accordingly probe_com_os c Micrium Software uC Prob
13. h p24FI128G4010 inc probe_com h probe_com_cfg h 2 probe_rs232 h E probe_rs232c h Cia i is 19 i 1a m DAE EE DEEEEEEEEEEEEE Figure 1 5 MPLab Source Tree 12 Micripm uC OS II and pC OS Probe for the Microchip PIC24 2 00 Example Code As mentioned in the previous section the example code for this board is found in the following directories and will be briefly described Micrium Software EvalBoards Microchip Explorer16 PIC24FJ128 MPLAB_C30 0S Probe It should be noted that the file p24FJ128GA010 gl1d BSP directory is critical for linking the example code to the correct address ranges suitable for the PIC24 This file should not need to be modified 2 01 Example Code app c app c demonstrate some of the capabilities of uC OS II Listing 2 1 main void main void 1 INT8U err BSP_IntDisAl1l 2 OSsInit 3 OSTaskCreateExt AppStartTask 4 void 0 OS_STK amp AppStartTaskStk APP_START_TASK_STK_SIZE 1 APP_START_TASK_PRIO APP_START_TASK_PRIO OS_STK amp AppStartTaskStk 0 APP_START_TASK_STK_SIZE void 0 OS_TASK_OPT_STK_CHK OS_TASK_OPT_STK_CLR if OS_TASK_NAME_SIZE gt 11 OSTaskNameSet APP_START_TASK_PRIO Start Task amp err 5 endif osStart 6 L2 1 1 As with most C applications the code starts in main L2 1 2 We start off by calling a BSP function see bsp c that will disable all interr
14. id INT32U tmr_frq INT16U cnts tmr_frq BSP_CPU_C1kFrq 1 cents tme tra OS_TICKS PER SEC 1 2 if BSP_OS_TMR_SEL 3 T2CON 0 4 TMR2 0 5 PR2 cnts 6 IPC1l amp T2IP_MASK 7 IPC1 TIMER_INT_PRIO lt lt 12 8 IFSO amp T2IF 9 IECO T2IE 10 T2CON TON 11 endif if BSP_OS_TMR_SEL 4 12 T4CON 0 TMR4 0 PR4 cnts IPC6 amp T4IP_MASK IPC6 TIMER_INT_PRIO lt lt 12 IFS1 amp T4IF IEC1 TA4IE T4CON TON endif L3 3 1 Get the CPU operating frequency in Hz in order to calculate the correct number of timer increments for the desired OS Tick rate L3 3 2 Compute the number of timer increments necessary to generate the desired OS Tick rate L3 3 3 If BSP_OS_TMR_SELin BSP H is defined as 2 then configure timer 2 L3 3 4 Set default settings for the timer Stop the timer set the timer to derive its clock from Fcy PLL Output configure the timer with a prescaler of 1 and set the timer to operate in 16 bit mode L3 3 5 Reset the timer count to 0 L3 3 6 Set the compare value that the counter will increment to before generating a match interrupt This was computed in L3 3 2 L3 3 7 Clear the interrupt priority bits so that the correct priority may be written in L3 3 9 L3 3 8 Set the timer interrupt priority to a default value of 4 L3 3 9 Clear all pending timer interrupts L3 3 10 Enable timer interrupts L3 3 1
15. our application absolutely requires this timer then you may optionally select Timer number 4 also a B type timer for use with the OS Ticker by changing BSP_OS_TMR_SEL in BSP H from2to4 ISR handlers are defined using predefined compiler specific keyword and names such that MPLab automatically populates the vector table upon loading the executable into flash memory Every vendors compiler handles vector table population differently Users should not use IDE or compiler specific keywords in order to create ISRs written entirely in C unless the necessary steps to ensure that the OS is properly informed of the interrupt are taken This usually involves inline assembly A better method is to populate the ISR table with the address of a first level ISR handler written in assembly which calls a user specified C code handler function An example assembly ISR may be copied from the OS tick ISR with minimal changes All ISRs should be written as specified in the PIC24 OS port application note see AN 1024 Finally wC Probe requires a free running timer for making time measurements Since the PIC24 does not provide a free running timer mode the example described herein cannot share a timer with the uwC OS II Ticker As a result a second timer is configured from BSP c_ with interrupts disabled and a Period register value of OxFFFF This simulates a free running timer that can be utilized by uC Probe without having any effect on the pC OS II Tick interru
16. pt source Micripm uC OS II and pC OS Probe for the Microchip PIC24 1 02 yC Probe uC Probe is a Microsoft Windows program that displays the content of system variables on various user definable graphical elements such as simulated mechanical counters graphs on screen LEDs and so on In order for wC Probe to display information about your application an ELF file must be generated by the user s compiler The ELF file contains the names and addresses of all the global symbols referenced within the users embedded application Only symbols that have been allocated memory e g not allocated on the stack are able to be monitored by uC Probe Global and static variables are examples of variables that may be monitored The user places components such as gauges labels and charts into a Data Screen in a uC Probe workspace Each one of these controls is then assigned to one or more of the variables from the Symbol Browser The Symbol Browser lists all symbols referenced from within the ELF file Symbols associated with components placed on an open Data Screen will be updated after the user presses the start button assuming the user s PC is connected to the target and the target is running uC Probe currently interfaces with a target processor via JTAG RS 232 UDP and USB A small section of code resident on the target receives commands from the Windows application and responds to those commands The commands ask for a certain number of b
17. revious versions of j C OS II 2 05 Example Code OS Probe MCP MCS MCW are MPLab project files 16 Micripm uC OS II and pC OS Probe for the Microchip PIC24 3 00 Board Support Package BSP BSP stands for Board Support Package and provides functions to encapsulate common I O access functions in order to make it easier for you to port your application code In fact you should be able to create other applications using the PIC24 and Explorer 16 Evaluation Board and reuse these functions thus saving you a lot of time The BSP performs the following functions Determine the PIC24s CPU clock and peripheral frequencies Configure the LED I Os for the Explorer 16 Evaluation Board and PIC24 CPU Configuration and handling of the uwC OS II tick timer Configuration and handling of the uC OS Probe measurement timer The BSP for the Explorer 16 Evaluation Board is found in the follow directory Micrium Software EvalBoards Microchip Explorer16 PIC24FJ128 MPLAB_C30 BSP The BSP files are bsp c bsp h bsp_a s bsp_lcd c p24FJ128GA010 gld p24FJ128GA010 h p24FJ128GA010 inc 3 01 Board Support Package p24FJ128GA010 gld p24FJ128GA010 gl1d is a linker command file that allows the example code to be targeted to the PIC24 Explorer 16 Evaluation Board This file basically indicates where code and data will be located in memory Example code is assumed to be placed in Flash memory using the Microchip ICD2 in circuit de
18. ted using OSTaskDel when they are no longer desired This task performs the LED illumination and scrolling effect used within this application As pC OS II tasks must either enter an infinite loop waiting for some event to occur or terminate itself In this case we wait for time to expire as the event This is accomplished by calling OSTimeD1lyHMSM 15 Micripm uC OS II and pC OS Probe for the Microchip PIC24 2 02 Example Code app_cfg h This file is used to configure the pC OS II task priorities of each of the tasks in your application the stack size for each tasks wC OS Probe The reason this is done here is to make it easier to configure your application from a single file 2 03 Example Code includes h includes h is a master header file that contains include directives to include other header files This is done to make the code cleaner to read and easier to maintain 2 04 Example Code os_cfg h This file is used to configure uC OS II and defines the maximum number of tasks that your application can have which services will be enabled semaphores mailboxes queues etc the size of the idle and statistic task and more In all there are about 60 or so define that you can set in this file Each entry is commented and additional information about the purpose of each define can be found in the wC OS II book os_cfg h assumes you have uC OS II V2 80 or higher but also works with p
19. upts We do this to ensure that initialization doesn t get interrupted in case we do a warm restart L2 1 3 As will all uC OS II applications you need to call OSInit before creating any task or other kernel objects L2 1 4 L2 1 5 L2 1 6 Micripm uC OS II and pC OS Probe for the Microchip PIC24 We then create at least one task in this case we used OSTaskCreateExt to specify additional information about your task to wC OS II It turns out that uC OS II creates one and possibly two tasks in OSInit As a minimum uC OS II creates an idle task OS_TaskIdle which is internal to wC OS II and OS_TaskStat if you set OS_TASK_STAT_EN to 1 in OS_CFG H OS_TaskStat is also an internal task in wC OS II As of V2 6x you can now name wC OS II tasks and other kernel objects and be able to display task names at run time or with a debugger In this case we name our first task Start Task We finally start uC OS II by calling oSStart wC OS II will then start executing AppStartTask since that s the highest priority task created oSStart does not return Listing 2 2 AppTaskStart static void AppStartTask void p_arg void p_arg BSP_Init 1 if OS_TASK_STAT_EN gt 0 OSStatInit 2 endif if uC_PROBE_OS_PLUGIN gt 0 uC_PROBE_COM_MODULE gt 0 AppProbeInit 3 endif AppTaskCreate 4 LED_Off 0 5 while DEF_TRUE 6 for j 0 J lt
20. ytes located at a certain address for example Send 16 bytes beginning at 0x0040102C The Windows application upon receiving the response updates the appropriate component s on the data screen s with the new values Micrium uC OS II and pC OS Probe for the Microchip PIC24 Start Stop button This button switches between Design and Run Time Views During Run Time View when data is collected this will appear as a stop button a blue square Data Screen Components are placed onto the data screen and assigned symbols during Design View During Run Time View these components are updated with values of those symbols from the target Symbol Browser Contains all symbols from the ELF files added to the workspace Figure 2 1 uC Probe Windows Program To use uC Probe with the example project or your application do the following 1 Download and Install C Probe A trial version of pC Probe can be downloaded from the Micrium website at http www micrium com products probe probe html 2 Open pC Probe After downloading and installing this program open the example uC Probe workspace for uC OS II named OS Probe wsp which should be located in the AN 1208 Codewarrior project directory 5 6 Micripm uC OS II and uC OS Probe for the Microchip PIC24 You may also open one of the sample workspaces that comes with uC Probe The sample workspaces located in the wC Probe target dire
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