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cc3200MOD

Omid (TI)
Intellectual 1470 points
Other Parts Discussed in Thread: CC3200MOD, UNIFLASH

Hi Team,

Can you please look at the inquriy below and give the customer some insights. I would be extremley appreciative!-----

Right now I am having two issues on the CC3200MOD chip we have already designed in our product (and received yesterday first prototypes):

  • On the datasheet, the pin diagram figure (on page 7) shows pin 39 as VDD_ANA2, while the subsequent Pin Attributes table (table 3-1 on page 8-9) shows pin 39 as “Leave unconnected”. Also, looking at the board files for the LaunchPad design (CC3200MODLAUNCHXL) pin 39 is actually connected to net named VDD_FLASH. The question is: Do we need to connect it or just leave it unconnected?
  • As for programming the chip, is the serial port (on pins ) the only way to program the chip? Can we program it with the JTAG at all?
  • For production, what kind of tool can we use to program the chip with the final code? Right now I am wiring the Launchpad board to use the FTDI chip on it and bypassing the CC3200MOD chip on the board with wires that connect to the RX/TX and Reset signals to our prototype board. Is there a tool you can suggest that makes it easier if we don’t need to use the JTAG? Also, does the XDS100 emulator support the programming of the CC3200MOD with the Uniflash application?

 

Respectfully,

Omid

  • 0
    Guru 80405 points
    Hi Omid,

    Answers to question of your customer:
    - leave PIN 29 unconnected, as is recommended in datasheet. I have same thing in my hardware with CC3200MOD and it is not issue.
    - for production and programming of serial flash (SFlash) in CC3200MOD is serial interface (UART) mandatory. There is no way how to use JTAG for this purpose. Don't forgot connects to header also SOP02 and RESET pin. Please see production line guide: processors.wiki.ti.com/.../CC3200MOD_Production_Line_Guide

    My suggestion for interfaces:
    1. If you customer want make development on final board, he needs to connect JTAG pins to header/connector (TCK, TMS, TDO, TDI, GND). My suggestion is also use 4-wire JTAG instead 2-wire SWD. There are sometimes issue with SWD and CCS IDE.
    2. Connect PINs RX, TX, SOP02, RESET, (GND, Vcc) to 2nd header or connector. This interface will be used for production programming. During production you will connect external USB/serial converter to this interface. SOP02 and RESET pin can be controlled by software or manually.
    3. For production programming use Uniflash CLI or Embedded programming ( www.ti.com/.../embedded-programming ). GANG programming with CC3200MOD can't be used (serial flash is in module and can't be programmed by external tool)

    Jan