README
======
This directory hold the port to the NXP S32K118EVB-Q064 Development board.
Contents
========
o Status
o Serial Console
o LEDs and Buttons
o OpenSDA Notes
o Configurations
Status
======
2019-08-14: Configuration created but entirely untested. Support for the
S32K1XX family is incomplete. This configuration is intended, initially,
to support development of the architecture support. This is VERY much
a work in progress and you should not use this configuration unless you
are interested in assisting with the bring-up.
2019-08-17: The port is code complete. It compiles with no errors or
warnings but is untested. Still waiting for hardware.
2019-08-20: I have the board and started the debug. However, the
very first image that I wrote to FLASH seems to have "bricked" the
board. I believe that the S32K118 resets into a bad state and
cannot interface with the OpenSDA, effectively cutting it off from
the world. I will continuing the bring-up using the S32K146EVB
where I can run from SRAM for the initial bring-up.
These bring-up issues were addressed with S32K146EVB. It is not probably
safe to try the S32K118EVB again (if I can figure out how to break into
my bricked system).
Serial Console
==============
By default, the serial console will be provided on the OpenSDA VCOM port:
OpenSDA UART TX PTB1(LPUART0_TX)
OpenSDA UART RX PTB0(LPUART0_RX)
USB drivers for the PEMIcro CDC Serial port are available here:
http://www.pemicro.com/opensda/
LEDs and Buttons
================
LEDs
----
The S32K118EVB has one RGB LED:
RedLED PTD16 (FTM0 CH1)
GreenLED PTD15 (FTM0 CH0)
BlueLED PTE8 (FTM0 CH6)
An output of '1' illuminates the LED.
If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
any way. The following definitions are used to access individual RGB
components.
The RGB components could, alternatively be controlled through PWM using
the common RGB LED driver.
If CONFIG_ARCH_LEDs is defined, then NuttX will control the LEDs on board
the s32k118evb. The following definitions describe how NuttX controls the
LEDs:
==========================================+========+========+=========
RED GREEN BLUE
==========================================+========+========+=========
LED_STARTED NuttX has been started OFF OFF OFF
LED_HEAPALLOCATE Heap has been allocated OFF OFF ON
LED_IRQSENABLED Interrupts enabled OFF OFF ON
LED_STACKCREATED Idle stack created OFF ON OFF
LED_INIRQ In an interrupt (no change)
LED_SIGNAL In a signal handler (no change)
LED_ASSERTION An assertion failed (no change)
LED_PANIC The system has crashed FLASH OFF OFF
LED_IDLE S32K118EVN in sleep mode (no change)
==========================================+========+========+=========
Buttons
-------
The S32K118EVB supports two buttons:
SW2 PTD3
SW3 PTD5
OpenSDA Notes
=============
- USB drivers for the PEMIcro CDC Serial port are available here:
http://www.pemicro.com/opensda/
- The drag'n'drog interface expects files in .srec format.
- Using Segger J-Link: Easy... but remember to use the SWD connector J14
near the touch electrodes and not the OpenSDA connector near the OpenSDA
USB connector J7.
Configurations
==============
Common Information
------------------
Each S32K118EVB configuration is maintained in a sub-directory and
can be selected as follow:
tools/configure.sh s32k118evb:<subdir>
Where <subdir> is one of the sub-directories listed in the next paragraph
NOTES (common for all configurations):
1. This configuration uses the mconf-based configuration tool. To
change this configuration using that tool, you should:
a. Build and install the kconfig-mconf tool. See nuttx/README.txt
see additional README.txt files in the NuttX tools repository.
b. Execute 'make menuconfig' in nuttx/ in order to start the
reconfiguration process.
2. Unless otherwise stated, the serial console used is LPUART0 at
115,200 8N1. This corresponds to the OpenSDA VCOM port.
Configuration Sub-directories
-------------------------
nsh:
---
Configures the NuttShell (nsh) located at apps/examples/nsh. Support
for builtin applications is enabled, but in the base configuration no
builtin applications are selected.
NOTE: This is a very minimal NSH configuration in order to recude
memory usage. Most of the NSH niceties are not available.
