953f7ae45d
The README.txt file is updated with information about wiring and building. A testcase.ini file is also added by this patch. Change-Id: I7354d844ac3dec41f0c9af02ede5da26f3ad0398 Signed-off-by: Flavio Santes <flavio.santes@intel.com>
84 lines
2.4 KiB
Plaintext
84 lines
2.4 KiB
Plaintext
Title: Disco demo
|
|
|
|
Description
|
|
|
|
A simple 'disco' demo. The demo assumes that 2 LEDs are connected to
|
|
GPIO outputs of the MCU/board.
|
|
|
|
After startup, the program looks up a predefined GPIO device defined
|
|
by 'PORT', and configures pins 'LED1' and 'LED2' in output mode.
|
|
During each iteration of the main loop, the state of GPIO lines will
|
|
be changed so that one of the lines is in high state, while the other
|
|
is in low, thus switching the LEDs on and off in an alternating
|
|
pattern.
|
|
|
|
This project does not output to the serial console, but instead
|
|
causes two LEDs connected to the GPIO device to blink in an
|
|
alternating pattern.
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
Wiring
|
|
|
|
Nucleo-64 F103RB/F401RE boards:
|
|
|
|
Connect two LEDs to PB5 and PB8 pins. PB5 is mapped to the
|
|
Arduino's D4 pin and PB8 to Arduino's D15. For more details about
|
|
these boards see:
|
|
|
|
https://developer.mbed.org/platforms/ST-Nucleo-F103RB/
|
|
https://developer.mbed.org/platforms/ST-Nucleo-F401RE/
|
|
|
|
Arduino 101 (x86):
|
|
|
|
Connect two LEDs to D4 (IO4) and D7 (IO7) pins. The schematics
|
|
for the Arduino 101 board is available at:
|
|
|
|
https://www.arduino.cc/en/uploads/Main/Arduino101-REV4Schematic.pdf
|
|
|
|
For Arduino 101's pinmux mapping in Zephyr, see:
|
|
|
|
boards/x86/arduino_101/pinmux.c
|
|
|
|
Modify the src/main.c file and set:
|
|
|
|
#define PORT CONFIG_GPIO_QMSI_0_NAME
|
|
/* GPIO_19 is Arduino's D4 */
|
|
#define LED1 19
|
|
/* GPIO_20 is Arduino's D7 */
|
|
#define LED2 20
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
Building
|
|
|
|
Nucleo F103RB:
|
|
|
|
make pristine && make BOARD=nucleo_f103rb
|
|
|
|
Nucleo F401RE:
|
|
|
|
make pristine && make BOARD=nucleo_f401re
|
|
|
|
Arduino 101:
|
|
|
|
make pristine && make BOARD=arduino_101
|
|
|
|
The code may need some work before running on another board: set PORT,
|
|
LED1 and LED2 according to the board's GPIO configuration.
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
Troubleshooting
|
|
|
|
Problems caused by out-dated project information can be addressed by
|
|
issuing one of the following commands then rebuilding the project:
|
|
|
|
make clean # discard results of previous builds
|
|
# but keep existing configuration info
|
|
or
|
|
make pristine # discard results of previous builds
|
|
# and restore pre-defined configuration info
|
|
|
|
--------------------------------------------------------------------------------
|