KBOOT 1.2 and KE02 porting

grzegorzkonopko — Wed, 30 Mar 2016 13:40:12 GMT

Does anyone try to port KBOOT on KE0X (e.g.: KE02) platform? I have read reference manual and view source code and seems this platform is not supported. In chapter 10, porting bootloader: header fsl_flash_features.h has to be correctly adopted. This seems to be a first challenge.

Would be nice if NXP provide such definitions..

Does anyone has some expirence with porting KBOOT to KE02 platform?

Best Regards

/Greg

Re: KBOOT 1.2 and KE02 porting

mjbcswitzerland — Wed, 30 Mar 2016 13:55:35 GMT

KBOOT for KE02 is available at:

http://www.utasker.com/kinetis/FRDM-KE02Z.html

Regards

Mark

Re: KBOOT 1.2 and KE02 porting

grzegorzkonopko — Fri, 01 Apr 2016 19:22:07 GMT

What do you mean "is available"? What I read on web page is "KBOOT compatible UART loader" what for me obviously is not KBOOT but something what is "UART compatible". Am I correct? Is it based on KBOOT source code?

I need fully featured KBOOT due special requirements. Is your project something what may help me to port KBOOT on KE02?

Regards

/Greg

Re: KBOOT 1.2 and KE02 porting

mjbcswitzerland — Fri, 01 Apr 2016 23:15:14 GMT

Hi Greg

The KE02 loader in the link is a USB/UART implementation compatible with the KBOOT utility which supports also USB-MSD, SD card, Ethernet and a few other UART loading protocols (of course the Ethernet and USB parts are disabled when the KE02 is selected due to missing peripherals).

It is not KBOOT source code ported to KE02 but a processor independent implementation (operates on all KE, KL, K, KW, KV etc.) that can be build using any of the popular development environments as well as full simulation for reviews as well as professional support for critical projects or where customised features are desired.

KBOOT source is quite processor and IDE specific and so complicated to maintain. This means that if you need to use actual KBOOT code you will need to either do a pure porting excercise or request NXP to invest in a port to the particular device.

Regards

Mark

Re: KBOOT 1.2 and KE02 porting

grzegorzkonopko — Sun, 03 Apr 2016 06:08:10 GMT

Hi Mark

Make sense! really nice.

Is it fully supported KBOOT UART protocol? so I can use PC application from NXP?

/Greg

Re: KBOOT 1.2 and KE02 porting

mjbcswitzerland — Sun, 03 Apr 2016 13:26:15 GMT

It works with the KBOOT PC appliation to load new code (USB or UART) - there are two binary files at the link which can be used to verify this.

Below I have copied the actual KBOOT handling (generic for any processor on any interface). Some KBOOT specified commands are not handled because there is no need to for SW loading. The KBOOT protocol is specified in quite an abstract way (foreseeing various potential possibilities that would probably never be of much practical use) but it is visible that such things can also be added easily if ever required.

Regards

Mark

extern int fnHandleKboot(QUEUE_HANDLE hInterface, int iInterfaceType, KBOOT_PACKET *ptrKBOOT_packet)
{
    int iReturn = 0;
    KBOOT_PACKET KBOOT_response;
    uMemset(&KBOOT_response, 0, sizeof(KBOOT_response));
    switch (ptrKBOOT_packet->ucCommandType) {                            // the command
    case KBOOT_REPORT_ID_COMMAND_OUT:
        KBOOT_response.ucCommandType = KBOOT_REPORT_ID_COMMAND_IN;
        switch (ptrKBOOT_packet->ucData[0]) {
        case KBOOT_COMMAND_TAG_GET_PROPERTY:                             // 0x07 this routine is partly prepared for multiple parameters but assumes only a single one
            {
                int iParameters = ptrKBOOT_packet->ucData[3];
                unsigned long ulValue = 0;
                unsigned char *prType = &ptrKBOOT_packet->ucData[4];
                if (iParameters > 1) {
                    _EXCEPTION("only one parameter tested!");
                }
                while (iParameters--) {                                  // for each requested parameter (presently only one parameter is ever received)
                    fnHandlePropertyGet(*prType, &ulValue);
                }
                KBOOT_response.ucLength[0] = 12;
                KBOOT_response.ucData[0] = (ptrKBOOT_packet->ucData[0] | 0xa0);
                KBOOT_response.ucData[3] = (ptrKBOOT_packet->ucData[3] + 1); // status plus requested parameters
                KBOOT_response.ucData[8] = (unsigned char)ulValue;
                KBOOT_response.ucData[9] = (unsigned char)(ulValue >> 8);
                KBOOT_response.ucData[10] = (unsigned char)(ulValue >> 16);
                KBOOT_response.ucData[11] = (unsigned char)(ulValue >> 24);
            }
            break;
        case KBOOT_COMMAND_TAG_WRITE_MEMORY:                             // 0x04
        case KBOOT_COMMAND_TAG_ERASE_REGION:                             // 0x02
            {
                unsigned long ulStartAddress;
                unsigned long ulLength;
                ulStartAddress = (ptrKBOOT_packet->ucData[4] | (ptrKBOOT_packet->ucData[5] << 8) | (ptrKBOOT_packet->ucData[6] << 16) | (ptrKBOOT_packet->ucData[7] << 24));
                ulLength = (ptrKBOOT_packet->ucData[8] | (ptrKBOOT_packet->ucData[9] << 8) | (ptrKBOOT_packet->ucData[10] << 16) | (ptrKBOOT_packet->ucData[11] << 24));
                if (KBOOT_COMMAND_TAG_ERASE_REGION == ptrKBOOT_packet->ucData[0]) { // command to delete an area in flash
                    if ((ulStartAddress >= UTASKER_APP_START) && (ulStartAddress < (unsigned long)UTASKER_APP_END)) {
                        if ((ulStartAddress + ulLength) > (unsigned long)UTASKER_APP_END) {
                            ulLength = ((unsigned long)UTASKER_APP_END - ulStartAddress);
                        }
                        fnEraseFlashSector((unsigned char *)ulStartAddress, (MAX_FILE_LENGTH)ulLength);
    #if defined ADD_FILE_OBJECT_AFTER_LOADING
                        fileObjInfo.ptrLastAddress = 0;
    #endif
    #if defined DEBUG_CODE
                        fnDebugMsg("ERASING: ");
                        fnDebugHex(ulStartAddress, (sizeof(ulStartAddress) | WITH_LEADIN));
                        fnDebugHex(ulLength, (sizeof(ulLength) | WITH_SPACE | WITH_LEADIN | WITH_CR_LF));
    #endif
                    }
                }
                else {                                                   // command to write following data to flash
                    ptrFlashAddress = (unsigned char *)ulStartAddress;
                    ulProg_length = ulLength;
    #if defined ADD_FILE_OBJECT_AFTER_LOADING
                    if ((ptrFlashAddress + ulLength) > fileObjInfo.ptrLastAddress) {
                        fileObjInfo.ptrLastAddress = (ptrFlashAddress + ulLength); // keep a track of the highest program address
                    }
    #endif
    #if defined DEBUG_CODE
                    fnDebugMsg("PROGRAMMING: ");
                    fnDebugHex(ulProg_length, (sizeof(ulLength) | WITH_LEADIN | WITH_CR_LF));
    #endif
                }
                KBOOT_response.ucLength[0] = 12;                         // generic response
                KBOOT_response.ucData[0] = 0xa0;
                if (iInterfaceType == KBOOT_UART) {
                    KBOOT_response.ucData[3] = 2;
                }
                else {
                    KBOOT_response.ucData[2] = 2;
                }
                KBOOT_response.ucData[8] = ptrKBOOT_packet->ucData[0];
            }
            break;
        case KBOOT_COMMAND_TAG_RESET:                                    // 0x0b
            iReturn = 1;                                                 // reset is required
            KBOOT_response.ucLength[0] = 12;                             // generic response
            KBOOT_response.ucData[0] = 0xa0;
            if (iInterfaceType == KBOOT_UART) {
                KBOOT_response.ucData[3] = 2;
                fnDriver(hInterface, (RX_OFF), 0);                       // disable rx since we are resetting (to stop the host's ack triggering receive timer and losing reset timer)
    #if defined ADD_FILE_OBJECT_AFTER_LOADING
                fileObjInfo.ptrShortFileName = "KBOOTSERBIN";            // define a name for the file (with default time/date)
    #endif
            }
            else {
                KBOOT_response.ucData[2] = 2;
    #if defined ADD_FILE_OBJECT_AFTER_LOADING
                fileObjInfo.ptrShortFileName = "KBOOTUSBBIN";            // define a name for the file (with default time/date)
    #endif
            }
            KBOOT_response.ucData[8] = ptrKBOOT_packet->ucData[0];
    #if defined ADD_FILE_OBJECT_AFTER_LOADING
            if (fileObjInfo.ptrLastAddress != 0) {
                fnAddSREC_file(&fileObjInfo);                            // add a file object with name and size
            }
    #endif
    #if defined DEBUG_CODE
            fnDebugMsg("RESETTING\r\n");
    #endif
            break;
        case KBOOT_COMMAND_TAG_ERASE_ALL:                                // the following are not yet used by KBOOT
            break;
        case KBOOT_COMMAND_TAG_READ_MEMORY:
            break;
        case KBOOT_COMMAND_TAG_FILL_MEMORY:
            break;
        case KBOOT_COMMAND_TAG_FLASH_SECURITY_DISABLE:
            break;
        case KBOOT_COMMAND_TAG_RECEIVE_SBFILE:
            break;
        case KBOOT_COMMAND_TAG_EXECUTE:
            break;
        case KBOOT_COMMAND_TAG_CALL:
            break;
        case KBOOT_COMMAND_TAG_SET_PROPERTY:
            break;
        case KBOOT_COMMAND_TAG_MASS_ERASE:
            break;
        }
        fnReturnResponse(hInterface, iInterfaceType, &KBOOT_response);
        break;
    case KBOOT_REPORT_ID_DATA_OUT:                                       // data to be written
        {
            unsigned short usBuff_length = ptrKBOOT_packet->ucLength[0];
            if ((ptrFlashAddress >= (unsigned char *)UTASKER_APP_START) && (ptrFlashAddress < UTASKER_APP_END)) { // if the sector belongs to the application space
                if ((ptrFlashAddress + usBuff_length) > UTASKER_APP_END) { // if the write would be past the end of the application space
                    usBuff_length = (unsigned short)(ptrFlashAddress - UTASKER_APP_END);
                }
                if (usBuff_length > ulProg_length) {
                    usBuff_length = (unsigned short)ulProg_length;
                }
                fnWriteBytesFlash(ptrFlashAddress, ptrKBOOT_packet->ucData, usBuff_length); // program flash
                ptrFlashAddress += usBuff_length;
                ulProg_length -= usBuff_length;
                if (ulProg_length == 0) {                                // complete code has been received
                    KBOOT_response.ucCommandType = KBOOT_REPORT_ID_COMMAND_IN;
                    KBOOT_response.ucLength[0] = 12;                     // generic response
                    KBOOT_response.ucData[0] = 0xa0;
                    if (iInterfaceType == KBOOT_UART) {
                        KBOOT_response.ucData[3] = 2;
                    }
                    else {
                        KBOOT_response.ucData[2] = 2;
                    }
                    KBOOT_response.ucData[8] = KBOOT_COMMAND_TAG_WRITE_MEMORY;
    #if defined FLASH_ROW_SIZE && FLASH_ROW_SIZE > 0
                    fnWriteBytesFlash(0, 0, 0);                          // close any outstanding FLASH buffer
    #endif
                    fnReturnResponse(hInterface, iInterfaceType, &KBOOT_response); // send response to inform that all data has been programmed
    #if defined DEBUG_CODE
                    fnDebugMsg("*");
    #endif
                }
    #if defined DEBUG_CODE
                fnDebugMsg(".");
    #endif
            }
    #if defined DEBUG_CODE
            else {
                 fnDebugMsg("x");
            }
    #endif
        }
        break;
    }
    return iReturn;
}

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