Forum : ARM
Original Post
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August 7, 2009 - 6:54am
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I have the REva 3.3 with on board Rlink and wanted to use it with JTAGJet from Signum. The header on the REva is a 24 pin, not 20 pin so is not compatable with JTAGJet. Also I cannot find schematics for the 24 pin header. What do I need to turn off Rlink on the REva board and connect JTAGJet? |
Which daughter board (or derivative..) are you working on ?
I am working with STM32F103 daughter board
The ARM connector was available on REVA2, but it is not on REVA3. The 20 pin is also available on some boards to connect JtagJET when ETM is available on the device (STM32F107 and STR9), but it's not the case of F103.
Conclusion:
1. you cannot connect JTAGjet to 'REVA3+STM32F103) with a simple ribbon cable.
2. the only possiible connection could be with a set of single wires (only two wires if you use SWD).
Thanks, a couple other questions:
1) I also have the STR912F daughter board but there is no 20 pin connector for it either. How is the STR9 supported for 20 pin?
2) Can you supply the pin out for the single wire connections to connect JTAG to STM32103?
The STR912 board used to be delivered with a REVA2 (that has the 20 pin connector on the mother board). There is also a footprint on the daughter board for a mictor connector (to connect JTAGJet-ETM), but the mictor connector was soldered only when sold with a JTAGJet-ETM.
You will find the pinout of the REVA schematic.
For the SWD connection, see also: http://raisonance-forum.xsalto.com/viewtopic.php?id=2449