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Topic: UHSDR and rev. 0.7 (Read 2128 times)
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S58J
schon länger dabei
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Posts: 100
Ich liebe dieses Forum!
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UHSDR and rev. 0.7
« on: 15. January 2018, 18:59:38 »
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Hi
Yesterday I assembled the mcHF rev 0.7 Logic board with the minimum components as described in Chris' USB Blank Programming Manual. Beside the minimum components (U204, U205, U206, a couple of resistors and capacitors) I also soldered AT24CM02 (actually ATMLH7102H) and C299 capacitor next to it (yes, PIN 3 is grounded).
Then I followed Chris' manual by uploading bootloader using DfuSE and described procedure (P206 shorted, P2a pin 2 grounded,...). Instead of Chris' bootloader I installed UHSDR bootloader (latest, 3.4.5). This part went OK.
Then I closed the DfuSE, unplugged the USB, removed P206, put pin 1 of P2a to the ground .... all as suggested by Chris in step 2 to install the firmware as well. Now computer doesn't "see" the rev 0.7 logic board anymore.
If I connect back for the bootloader upgrade (P206 shorted, pin 2 on P2a, ...) everything runs normally (my laptop recognizes the board, but the DfuSe programe does not see the previously installed bootloader - maybe this is normal).
My intention is to use UHSDR in the mcHF rev. 0.7, both bootloader and firmware. Questions:
- Is it possible to install UHSDR firmware at this stage at all (with minimum components on logic board)?
- If yes, should I use DfuSE to install firmware as well? How? Should I connect P206 and P2a the same way as for bootloader and follow the same procedure but this time adding firmware file?
- Is it normal I don't see the previously loaded bootloader in the DfuSE programme?
Looking forward towards your reply. Kind regards
Janez, S58J
P.S.
It is my first time in this forum. Can someone please tell me how to switch-off automatic changes (translations) of the text I enter? I fighting with a translations which are wrong.
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S58J
schon länger dabei
Offline
Posts: 100
Ich liebe dieses Forum!
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Re:UHSDR and rev. 0.7
« Reply #2 on: 15. January 2018, 20:52:58 »
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Hi Andreas
Thanks for the quick reply. I am still using DFU and again my Logic Board has only a few components on it. Bootloader is already installed. Just the firmware part puzzles me.
Why I am puzzled? Because Chris also uses DFU for bootloader but then removes one jumper and realign another plus you need to use new software - mcHF Manager for FW. I know there is difference between Chris' bootloader and UHSDR, as well as when it comes to FW.
Back to DFU: If I want to install FW via DFU is it OK to KEEP THE JUMPERS AS THEY WERE FOR BOOTLOADER (P206 jumper shorted and Pin 2 of P2a connected to the ground)? Then I follow the same software procedure as described in the link you provided to me for bootloader?
Basically with DFU I can install one file after another (bootloader being first) and no other change is needed on the Logic PCB in terms of jumpers between the two installs. Am I right?
73,
Janez, S58J
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