using cc2540EMK

gautam jotkar

Expert 1165 points

Other Parts Discussed in Thread: CC2540, CC-DEBUGGER

Hi all...

Is Smart-RF-EB a must for programming and debugging CC2540-EMK (evaluation_module_kit)?

Can we also use cc debugger for programming & debugging?

Need help.

over 11 years ago

0 Oleg Komlev over 11 years ago

Expert 1740 points

Hi,

I think not. The only thing you need is schematics for EMK, so you can make in-between cable to power up EMK and plug CC debugger in.

0 gautam jotkar over 11 years ago in reply to Oleg Komlev

Expert 1165 points

Hi Oleg...

What do u mean by in between cable? Can you give me any circuit diagram for that?

Thank u..

0 Oleg Komlev over 11 years ago in reply to gautam jotkar

Expert 1740 points

Hi,

I was not able to find schematics for EMK right away, but it has to be there, presumably in SmartRF/EMK manuals.

You need a cable which will do two things:

a) provide voltage/ground to 2540s pins on board, and

b) provide a connector where you'll plug CC debugger. The connector should route to CC2540s debug pins.

Obviously, those pins are routed to EMK's two connectors.

BR,

Oleg

0 gautam jotkar over 11 years ago in reply to Oleg Komlev

Expert 1165 points

Thanks for the information.

The schematic for EMK can be found in here. (http://www.ti.com/lit/ug/swru301a/swru301a.pdf)

The voltage/ground (supply) can be routed thro P2. But how can i route the connector to cc2540 debug pins(which pins are debug pins)?

I am a newbie with hardware, sorry if i am asking basic quest

0 Oleg Komlev over 11 years ago in reply to gautam jotkar

Expert 1740 points

The 254x User Guide is your friend ;-) Check out sections 3 and 7 for full pin reference, and CC debugger's user guide too.

Basically, you need five-wire connection between CCD and 2540 as follows:

CC2540	CC debugger
P2.1	DD
P2.2	DC
RESET_N	RESETn
3.3V on board	TVS
GND on board	GND

The way those five signals are rooted to EMK connector is not exactly convenient, but little could be done about that.

TVS is target voltage sense, which is simply a pin CC debugger uses to check if the board is powered on. It should be connected to power source of board.

Nice touch is that you can power 2540 from CC debugger (at least that works with keyfob board). Just use GND and 3.3V pins on CC debugger connectors.

BR,

Oleg

0 gautam jotkar over 11 years ago in reply to Oleg Komlev

Expert 1165 points

Thanks Oleg and Fredrik

I will work on making the five wire connection between CC-Debugger and 2540EMK.

What software tools should i use to program & debug?

Smart-RF-Programer

Smart-RF-Studio

Is Smart-RF-Studio suitable for this problem situation?

0 Fredrik K over 11 years ago in reply to gautam jotkar

TI__Guru** 106705 points

SmartRF Flash Programmer does what it's name says, programs the flash, and that's about it. SmartRF Studio can be used to control the chip, i.e. use the radio, play with register values etc.

So to program you must use the programmer, to debug (check the RF performance, etc.) you can use studio.

/Fredrik

0 gautam jotkar over 11 years ago in reply to Fredrik K

Expert 1165 points

Thanks a lot!

0 gautam jotkar over 11 years ago in reply to gautam jotkar

Expert 1165 points

I am planning to power up cc2540emk from CC debugger(pin 9).

Where should i connect TVS (target voltage sense) from debugger?

(Refer: to Oleg's reply above for connections between CCD and CC2540)

0 Oleg Komlev over 11 years ago in reply to gautam jotkar

Expert 1740 points

Hi,

Wire it straight to 3V3 from CC debugger - that's your power source, so TVS will go high along with voltage and tell CCD to go greenlamp.

BR,

Oleg

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