HM-TRP modules, start from the beginning

I just bought a couple of HM-TRP 868GHz Hope modules and I would like to make a telemetry system.

I have been loking for the information in this 3DR part of the forum but I think a bit dumb I couldn´t find the information.

I just try to use the modules as they com from the factory.

Y make two test boards and one of them I conected to a FTDI

I conected this way

FTDI Module

VCC 3,3V regulator VCC

GND GND

TX Rx

Rx Tx

DTR NONE

CTS NONE

I start from changing the baud rate with the AA commands

I have send some AA sentences from a Hyperterminal Program connected @ 9600bps with the Com port (USB)

I type the sentence

AA FA C3 00 00 E1 00 to change the wireless baud rate (57600) and the module record this parameter

When I type the nest sentence,

AA FA C3 00 00 E1 00 to change the UART baud rate (57600) after I send the sentence I could not talk to the module anymore.

I did a new connection with 57600 baud rate but it does not answer the correct answers. I have answers but it looks like is in another baud rate.

I don´t know how to go back and star from the beginning.

I just thought to star changing the bootloader and the firmware to conect them to the 3DR program.

Can anybody tell me something about how to change the boot and the FW.

Thanks a lot.

Alberto

Hi Marcin!

It's 2015 and the LPT programmer is still the cheapest solution for burning the 868mhz bootloader, I guess, right? :))

Finally, I have some time for this abandoned project... I assembled the Flashblaster2 C2 programmer on a breadboard (I checked a few time, I hope nothing is wrong with all those wires), got an old computer with a LPT port, I installed the FlashLoad Lite Software but I only get the error:

"Unknown chip type: IDCODE=0x0316".

What could this mean? Is the programmer OK ? It a little hard to debug locally because I have restricted acces to this old PC with LPT port.

One more question: The Flashblaster2 programmer has some more pins beside you specified in your previous posts (TMS/RST, TD0). Are they necessary? RST pin?

I connected 3V, GND, C2CK and C2DAT pins only.

Thanks,

Florin

74HC125N DIP14

Is any different betwin 74HC125 and the 74HC125D

If mine doen´t work. I can buy one like this.

Also I have seen this programmer

Do you think I can use it. I think it is OK for the Module.

For the program to flash the IC I have seen the flashload lite

Am I in the right way??

Thanks

Alberto

Replies

- - - - Marcin Krawczyk > Marcin Krawczyk January 21, 2015 at 1:33am
        
        You're welcome :-)
        
        Florin > Marcin Krawczyk January 21, 2015 at 12:48am
        
        Hi Marcin!
        
        It's 2015 and the LPT programmer is still the cheapest solution for burning the 868mhz bootloader, I guess, right? :))
        
        Finally, I have some time for this abandoned project... I assembled the Flashblaster2 C2 programmer on a breadboard (I checked a few time, I hope nothing is wrong with all those wires), got an old computer with a LPT port, I installed the FlashLoad Lite Software but I only get the error:
        
        "Unknown chip type: IDCODE=0x0316".
        
        What could this mean? Is the programmer OK ? It a little hard to debug locally because I have restricted acces to this old PC with LPT port.
        
        One more question: The Flashblaster2 programmer has some more pins beside you specified in your previous posts (TMS/RST, TD0). Are they necessary? RST pin?
        
        I connected 3V, GND, C2CK and C2DAT pins only.
        
        Thanks,
        
        Florin
        
        Marcin Krawczyk > Marcin Krawczyk October 9, 2014 at 9:08am
        
        I'm not able to reply below.
        
        Should work if you'll have software supporting it.
        
        Florin > Marcin Krawczyk October 8, 2014 at 11:30pm
        
        Hi Marcin!
        
        Yesterday I tried once again with Arduino and a flashing app from Silabs - 8-bit Production Programmer (this one works on COM ports) but again, no luck (this app expects some Silabs programmer. Someone on RCG pointed me this programmer. From what I have read, in theory, this should work for flashing the HM-TRP module. What do you think about it?
        
        Thanks!
        
        Florin > Marcin Krawczyk October 8, 2014 at 12:20am
        
        I've already know about your ready made bootloaders, I have the 868mhz one in my PC :). Unfortunately FlashLoadLite requires a LTP port in order to work so no chance for Arduino programmer.
Alberto Cristóbal Granda November 26, 2012 at 1:52pm

Hello Marcin,

I have been looking for the programmer but in Spain is out of stock, I think I can build as you did my own paralel prot programmer.

but I have a doubt (a lot actually)

In the schematic I can see several components called 100E , I don´t know what component is this I can imagine is a ressistor of 100 Ohmn but I am not sure (now you can see my electronics level)

I think I need two

74HC125N DIP14

Is any different betwin 74HC125 and the 74HC125D

If mine doen´t work. I can buy one like this.

Also I have seen this programmer

http://www.ebay.es/itm/Xilinx-JTAG-Parallel-Cable-III-FPGA-CPLD-pro...

Do you think I can use it. I think it is OK for the Module.

For the program to flash the IC I have seen the flashload lite

Am I in the right way??

Thanks

Alberto
Marcin Krawczyk November 22, 2012 at 11:18pm

You have to upload SiK firmware to modules using proper programmer.

Take a look at my post at Polish forum (use Google Translator): http://rc-fpv.pl/viewtopic.php?t=8011

Here you can find compiled firmware and bootloader files: http://diydrones.com/forum/topics/hm-trp-868-sik-software-link-prob....

Polskie Forum FPV • Wyświetl temat - Radiomodem "za grosze"

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