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Update README files

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This commit is contained in:
Gregory Nutt 2017-11-28 14:43:36 -06:00
parent 1338360ff7
commit 4d4029afeb
2 changed files with 39 additions and 5 deletions
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34
configs/stm32f4discovery/README.txt
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@ -33,6 +33,7 @@ Contents
- PWM
- UARTs
- Timer Inputs/Outputs
- Nintendo Wii Nunchuck
- Quadrature Encoder
- FPU
- STM32F4DIS-BB
@ -218,6 +219,39 @@ TIM14
free I/O pins.
** Port H pins are not supported by the MCU
Nintendo Wii Nunchuck:
======================
There is a driver on NuttX to support Nintendo Wii Nunchuck Joystick. If you
want to use it please select these options:
- Enable the I2C1 at System Type -> STM32 Peripheral Support, it will enable:
CONFIG_STM32_I2C1=y
- Enable to Custom board/driver initialization at RTOS Features -> RTOS hooks
CONFIG_BOARD_INITIALIZE=y
- Enable the I2C Driver Support at Device Drivers, it will enable this symbol:
CONFIG_I2C=y
- Nintendo Wii Nunchuck Joystick at Device Drivers -> [*] Input Device Support
CONFIG_INPUT=y
CONFIG_INPUT_NUNCHUCK=y
- Enable the Nunchuck joystick example at Application Configuration -> Examples
CONFIG_EXAMPLES_NUNCHUCK=y
CONFIG_EXAMPLES_NUNCHUCK_DEVNAME="/dev/nunchuck0"
You need to connect GND and +3.3V pins from Nunchuck connector to GND and 3V
of stm32f4discovery respectively (Nunchuck also can work connected to 5V, but
I don't recommend it). Connect I2C Clock from Nunchuck to SCK (PB6) and the
I2C Data to SDA (PB9).
Quadrature Encoder:
===================

10
libnx/nxfonts/README.txt
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@ -151,13 +151,13 @@ CONFIG_NXFONTS
CONFIG_NXFONTS_CHARBITS
The number of bits in the character set. Current options are only 7 and 8.
The default is 7.
CONFIG_NX_DISABLE_1BPP, CONFIG_NX_DISABLE_2BPP,
CONFIG_NX_DISABLE_4BPP, CONFIG_NX_DISABLE_8BPP,
CONFIG_NX_DISABLE_16BPP, CONFIG_NX_DISABLE_24BPP, and
CONFIG_NX_DISABLE_32BPP
CONFIG_NXFONTS_DISABLE_1BPP, CONFIG_NXFONTS_DISABLE_2BPP,
CONFIG_NXFONTS_DISABLE_4BPP, CONFIG_NXFONTS_DISABLE_8BPP,
CONFIG_NXFONTS_DISABLE_16BPP, CONFIG_NXFONTS_DISABLE_24BPP, and
CONFIG_NXFONTS_DISABLE_32BPP
NX supports a variety of pixel depths. You can save some memory by disabling
support for unused color depths.
CONFIG_NX_PACKEDMSFIRST
CONFIG_NXFONTS_PACKEDMSFIRST
If a pixel depth of less than 8-bits is used, then NX needs to know if the
pixels pack from the MS to LS or from LS to MS