MY usb-ttl module has only tx , rx pins , can the remote reset command be used on the 18f series of chips before downloading , if so what is the codes to do it ?
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When you first write bootloader code into your 18F device, bootloader runs
continuously in a loop waiting for your firmware Hex file to write.
When your Firmware has successfully written to 18F device, your new
Firmware is now responsible in the absence of Hardware Reset from
your [usb-ttl module] to intercept the unique Character Code you place
in the Tiny Multi Bootloader+ Configuration Tab by clicking on:
Under Reset Type group, click Remote Signal radio button.
In Remote Reset Signal group, enter your unique Character Code
in the Text box as decimal of values of ASCII Characters.
These unique characters will be sent first by Tiny Multi Bootloader+ as
a way of prompting your firmware that a new Firmware is available for
upload, at this point your Firmware can choose to [jump] to
location 0x0000 or issue a RESET instruction in other to kick-in your
resident BOOTLOADER, and the rest will be history.
Cheers,
Hanspeter.
Last edit: Hanspeter 2016-03-12
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
MY usb-ttl module has only tx , rx pins , can the remote reset command be used on the 18f series of chips before downloading , if so what is the codes to do it ?
Hi Sheldon,
Am two months late in reply.
When you first write bootloader code into your 18F device, bootloader runs
continuously in a loop waiting for your firmware Hex file to write.
When your Firmware has successfully written to 18F device, your new
Firmware is now responsible in the absence of Hardware Reset from
your [usb-ttl module] to intercept the unique Character Code you place
in the Tiny Multi Bootloader+ Configuration Tab by clicking on:
in the Text box as decimal of values of ASCII Characters.
These unique characters will be sent first by Tiny Multi Bootloader+ as
a way of prompting your firmware that a new Firmware is available for
upload, at this point your Firmware can choose to [jump] to
location 0x0000 or issue a RESET instruction in other to kick-in your
resident BOOTLOADER, and the rest will be history.
Cheers,
Hanspeter.
Last edit: Hanspeter 2016-03-12