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  1. Re: varable index buffer setup unsing a varable

    thats interesting thought and approach, maybe worth a look to just see if it works

    thanks richard ,
  2. Re: varable index buffer setup unsing a varable

    i can fix the problem by assign the max value used to buffer array , but it just a waist of buffers when they are not needed when the value should be lower than the max number , just goes against...
  3. Re: varable index buffer setup unsing a varable

    hi hendric

    its an exiting program that uses named constants to set the buffer size , the same named constants are used in multi locations to set other variables and math

    problem is now need...
  4. varable index buffer setup unsing a varable

    been a while since been playing on pbp so be nice

    like to have variable to set the index range for test3 , but not sure how to make it work , works for constants for sure

    test1 var byte...
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    Re: Tiny bootloader and pbp

    dave have you the asm code for MPLABX for the 18f27k40 used for the tiny bootloader

    i think as i am using the 47k40 theword values will be abit differnet
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    Re: Tiny bootloader and pbp

    thanks dave


    prior to bootloader use and relating to the config of the pic protection memory blocks i had protected boot blocks
    and most of memory blocks

    which of these now cant be...
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    Re: Tiny bootloader and pbp

    the bootloader pc app does not see the bootloader code serial port - untill it does the other steps are mute

    i have removed my config and just used the base standard 18f87k22 chip confg -...
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    Re: Tiny bootloader and pbp

    loaded the file bootloader file , via programmer

    but the com port does not detect the device
    have no rts/dtr avaialble -
    used com7(usb interface) - usart1 19200 ( rx1 - rc7 pin , tx1 - rc6...
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    Re: Tiny bootloader and pbp

    richard

    YES , your correct , there is no test to see if the internal clock or in this case external tcxo is ready,
    in my normal pbp i there is wait to check this , but not in the bootloader...
  10. Replies
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    Re: Tiny bootloader and pbp

    dave
    my pic config has currently set to protect memory , is this a problem for the bootloader ?

    also what changes need to be done to the pbp code to allow bootloader to work , i have read that...
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    Re: Tiny bootloader and pbp

    dave , the asm asked for Xtal value , it this the real value of the external xtl of 16000000hz or the PPL4 of 64000000 value ???
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    Re: Tiny bootloader and pbp

    thanks dave

    i have pc software from the main download site
  13. Replies
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    Re: Tiny bootloader and pbp

    thanks richard

    made me go back and have a look at the files in 5.40 mplab , there is no /mpasmx directory , and i checked this 2 times by re downloading ver 5.40 being the latest version
    i made...
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    Re: Tiny bootloader and pbp

    hi richard

    using xc8 ver 2.20 - latest i believe -

    path for include show no "p18f87k22.inc" , only "pic18f87k22.inc"
    unless there is another location to look for this include ?

    8865
  15. Replies
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    Re: Tiny bootloader and pbp

    ok have have used your asm and filled it it

    here the results - i am assuming i have the got mplab setup correctly



    radix DEC
    list p=18f87k22
    ; change these lines accordingly to your...
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    Re: Tiny bootloader and pbp

    bootloader pc v0.11.2.11


    https://sourceforge.net/projects/tinypicbootload/...
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    Re: Tiny bootloader and pbp

    it was with the version from the download site
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    Re: Tiny bootloader and pbp

    sent you PM on this

    cheers
    sheldon
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    Re: Tiny bootloader and pbp

    hi dave

    yes found the file as part of the references for tiny bootloader

    i have mplabx , but compiler for pbp loaded only

    it appears to need c compiler ??

    would like to rewrite file so...
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    Tiny bootloader and pbp

    hi guys ,
    i would like to try to use the tiny bootloader and PBP to make the bootloader hex file ,

    has anyone an example of how to make this work for 18f67k22 chip , or k40 chip series

    ...
  21. Re: help with buad rate caclulation and setting

    FIXED and now i know why i stuffed up

    for those that do not know how to caclulate the baud rates for osc speeds not common
    at least is shows how its done for the k40 series

    reason for the...
  22. Re: help with buad rate caclulation and setting

    changed incorrrect command
    baudcon2.3 =0 to baud2con.3 =0 but no change in result
  23. help with buad rate caclulation and setting

    Hi guys

    changed chip internal osc to an external tcxo at 16.368mhz with 4ppl to give 65.472mhz active for a 18f47k40 and the terminal port 2 is not as happy , all other bits on chip working...
  24. Re: Confirm 18f47k40 MSSP setting and allocation using PSS

    so you had an RGB 3 x led type on hand prior to test and it need 6 streams ?
  25. Re: Confirm 18f47k40 MSSP setting and allocation using PSS

    IF so what would it be called , if so more of them would be handy at times i am sure - this chip has 2 ports like this , i fear that the P!0 rgb version that uses the 3 x leds ( rgb) that is...
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