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| author | Gregory Nutt <gnutt@nuttx.org> | 2014-12-19 12:12:52 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2014-12-19 12:12:52 -0600 |
| commit | a185afa742a6a149e8659661767bc7e301f8b8ba (patch) | |
| tree | 4f4cfcb86e0cd54893eb45c4c557f875ab33a304 /nuttx/configs | |
| parent | d5d334083d2b0c74ffdd8cfcb119f78428181c6e (diff) | |
| download | nuttx-a185afa742a6a149e8659661767bc7e301f8b8ba.tar.gz nuttx-a185afa742a6a149e8659661767bc7e301f8b8ba.tar.bz2 nuttx-a185afa742a6a149e8659661767bc7e301f8b8ba.zip | |
TM4C129X: Add custom system control header file (incomplete)
Diffstat (limited to 'nuttx/configs')
| -rw-r--r-- | nuttx/configs/dk-tm4c129x/README.txt | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/nuttx/configs/dk-tm4c129x/README.txt b/nuttx/configs/dk-tm4c129x/README.txt index 166392d12..c09889df0 100644 --- a/nuttx/configs/dk-tm4c129x/README.txt +++ b/nuttx/configs/dk-tm4c129x/README.txt @@ -25,13 +25,8 @@ README.txt memories, parallel peripherals, and other system functions. - In-Circuit Debug Interface (ICDI) -On-Board GPIO Usage -=================== - - [To be provided] - -Using OpenOCD and GDB with an FT2232 JTAG emulator -================================================== +Using OpenOCD and GDB with ICDI +=============================== Building OpenOCD under Cygwin: @@ -377,8 +372,25 @@ Buttons and LEDs Serial Console ============== - [To be provided] + By default, all configurations use UART0 which connects to the USB VCOM + on the DEBUG port on the TM4C123 ICDI interface: + + UART0 RX - PA.0 + UART0 TX - PA.1 + + However, if you use an external RS232 driver, then other options are + available. If your serial terminal loses connection with the USB serial + port each time you power cycle the board, the VCOM option can be very + painful. + + UART0 TTL level signals are also available at J3 (also at J1): + + DEBUG_TX - J3, pin 13. Labelled PA1 + DEBUG_RX - J3, pin 15. Labelled PA0 + Remove the jumper between pins 13-14 and 15-16 to disconnect UART0 from + the TM4C123 ICDI chip; Connect your external RS-232 driver at pins 13 + and 16. 5v, 3.3v, AND GND are arvailable nearby at J10. DK-TM4129X Configuration Options ================================ |