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ESP32: The ESP32 Core V2 board does not have any user controllable LEDs.

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This commit is contained in:
Gregory Nutt 2016-10-21 07:35:56 -06:00
parent 363fe19ff6
commit 7a007a1e8e
5 changed files with 11 additions and 54 deletions
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2
arch/xtensa/src/common/xtensa_exit.c
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@ -179,7 +179,7 @@ void _exit(int status)
xtensa_full_context_restore(tcb->xcp.regs);
/* up_fullcontextrestore() should not return but could if the software
/* xtensa_full_context_restore() should not return but could if the software
* interrupts are disabled.
*/

1
configs/Kconfig
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@ -173,7 +173,6 @@ config ARCH_BOARD_EKKLM3S9B96
config ARCH_BOARD_ESP32CORE
bool "Expressif ESP32 Core board V2"
depends on ARCH_CHIP_ESP32
select ARCH_HAVE_LEDS
---help---
The ESP32 is a dual-core system from Expressif with two Harvard
architecture Xtensa LX6 CPUs. All embedded memory, external memory

35
configs/esp32-core/README.txt
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@ -84,35 +84,20 @@ Serial Console
Buttons and LEDs
================
NOTE: As of this writing, I have no schematic for the ESP32 Core board.
The following information derives only from examining the parts visible
on the board.
Buttons
-------
I see two buttons labelled Boot and EN. I suspect that neither is
available to software.
There are two buttons labeled Boot and EN. The EN button is not available
to software. It pulls the chip enable line that doubles as a reset line.
The BOOT button is connected to IO0. On reset it is used as a strapping
pin to determine whether the chip boots normally or into the serial
bootloader. After reset, however, the BOOT button can be used for software
input.
LEDs
A single LED labelled D1 is available.
When CONFIG_ARCH_LEDS is defined in the NuttX configuration, NuttX will
control the LED as follows:
SYMBOL Meaning LED
------------------- ----------------------- ------
LED_STARTED NuttX has been started OFF
LED_HEAPALLOCATE Heap has been allocated OFF
LED_IRQSENABLED Interrupts enabled OFF
LED_STACKCREATED Idle stack created ON
LED_INIRQ In an interrupt N/C
LED_SIGNAL In a signal handler N/C
LED_ASSERTION An assertion failed N/C
LED_PANIC The system has crashed FLASH
Thus is LED is statically on, NuttX has successfully booted and is,
apparently, running normally. If LED is flashing at approximately
2Hz, then a fatal error has been detected and the system has halted.
----
There are several on-board LEDs for that indicate the presence of power
and USB activity. None of these are available for use by sofware.
Configurations
==============

21
configs/esp32-core/include/board.h
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@ -40,25 +40,4 @@
* Pre-processor Definitions
****************************************************************************/
/* A single LED labelled D1 is available.
*
* When CONFIG_ARCH_LEDS is defined in the NuttX configuration, NuttX will
* control the LED as follows:
*
* SYMBOL Value Meaning LED
* ------------------- ----- ----------------------- ------ */
#define LED_STARTED 0 /* NuttX has been started OFF */
#define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF */
#define LED_IRQSENABLED 0 /* Interrupts enabled OFF */
#define LED_STACKCREATED 1 /* Idle stack created ON */
#define LED_INIRQ 2 /* In an interrupt N/C */
#define LED_SIGNAL 2 /* In a signal handler N/C */
#define LED_ASSERTION 2 /* An assertion failed N/C */
#define LED_PANIC 3 /* The system has crashed FLASH */
/* Thus if the LED is statically on, NuttX has successfully booted and is,
* apparently, running normally. If LED is flashing at approximately
* 2Hz, then a fatal error has been detected and the system has halted.
*/
#endif /* __CONFIGS_ESP32_CORE_INCLUDE_BOARD_H */

6
configs/esp32-core/nsh/defconfig
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@ -75,9 +75,6 @@ CONFIG_ARCH_CHIP="esp32"
CONFIG_ARCH_CHIP_ESP32=y
CONFIG_ARCH_FAMILY_LX6=y
CONFIG_XTENSA_NCOPROCESSORS=1
CONFIG_XTENSA_INT_NLEVELS=5
CONFIG_XTENSA_EXCM_LEVEL=3
# CONFIG_XTENSA_HAVE_LOOPS is not set
CONFIG_XTENSA_HAVE_INTERRUPTS=y
# CONFIG_XTENSA_USE_SWPRI is not set
CONFIG_XTENSA_CALL0_ABI=y
@ -149,8 +146,6 @@ CONFIG_ARCH_BOARD="esp32-core"
#
# Common Board Options
#
CONFIG_ARCH_HAVE_LEDS=y
CONFIG_ARCH_LEDS=y
#
# Board-Specific Options
@ -324,7 +319,6 @@ CONFIG_SPI_EXCHANGE=y
#
# LED Support
#
# CONFIG_USERLED is not set
# CONFIG_RGBLED is not set
# CONFIG_PCA9635PW is not set
# CONFIG_NCP5623C is not set