Contributed by 黎明将至!, organized by Ai-Thinker
Ai-WB2-32S GPIO Driving an RGB LED
Preface
This article introduces how to use the library to write a GPIO driver for an RGB LED. If you want to follow the procedure below, please first check the firmware flashing process under Linux Ubuntu by clicking this link.
1. Detailed Procedure
Step 1. Enter the directory
cd ~/Ai-Thinker-WB2/applications/get-started Create the directory gpio
Step 2. Enter the gpio directory and create the following files/directories
Step 3. Write the Makefile file (code below)
Click to expand: #
bash
#
## This is a project Makefile. It is assumed the directory this Makefile resides in is a
## project subdirectory.
#
PROJECT_NAME := gpio
PROJECT_PATH := $(abspath .)
PROJECT_BOARD := evb
export
PROJECT_PATH PROJECT_BOARD
#CONFIG_TOOLPREFIX :=
-include ./proj_config.mk
ifeq ($(origin BL60X_SDK_PATH), undefined)
BL60X_SDK_PATH_GUESS ?= $(shell
pwd
)
BL60X_SDK_PATH ?= $(BL60X_SDK_PATH_GUESS)/../../..
$(info ****** Please SET BL60X_SDK_PATH ******)
$(info ****** Trying SDK PATH [$(BL60X_SDK_PATH)])
endif
COMPONENTS_BLSYS := bltime blfdt blmtd bloop loopadc looprt loopset
COMPONENTS_VFS := romfs
INCLUDE_COMPONENTS += freertos_riscv_ram bl602 bl602_std newlibc hosal mbedtls_lts lwip vfs yloop utils cli blog blog_testc coredump
INCLUDE_COMPONENTS += $(COMPONENTS_NETWORK)
INCLUDE_COMPONENTS += $(COMPONENTS_BLSYS)
INCLUDE_COMPONENTS += $(COMPONENTS_VFS)
INCLUDE_COMPONENTS += $(PROJECT_NAME)
include $(BL60X_SDK_PATH)/make_scripts_riscv/project.mkStep 4. Write the proj_config.mk file (code below)
Click to expand: #
bash
#
#compiler flag config domain
#
#CONFIG_TOOLPREFIX :=
#CONFIG_OPTIMIZATION_LEVEL_RELEASE := 1
#CONFIG_M4_SOFTFP := 1
#
#board config domain
#
CONFIG_BOARD_FLASH_SIZE := 2
#firmware config domain
#
#set CONFIG_ENABLE_ACP to 1 to enable ACP, set to 0 or comment this line to disable
#CONFIG_ENABLE_ACP:=1
CONFIG_BL_IOT_FW_AP:=1
CONFIG_BL_IOT_FW_AMPDU:=0
CONFIG_BL_IOT_FW_AMSDU:=0
CONFIG_BL_IOT_FW_P2P:=0
CONFIG_ENABLE_PSM_RAM:=1
#CONFIG_ENABLE_CAMERA:=1
#CONFIG_ENABLE_BLSYNC:=1
#CONFIG_ENABLE_VFS_SPI:=1
CONFIG_ENABLE_VFS_ROMFS:=1
CONFIG_EASYFLASH_ENABLE:=0
CONFIG_SYS_APP_TASK_STACK_SIZE:=4096
CONFIG_SYS_APP_TASK_PRIORITY:=15
CONFIG_FREERTOS_TICKLESS_MODE:=0
CONFIG_SYS_VFS_ENABLE:=1
CONFIG_SYS_VFS_UART_ENABLE:=1
CONFIG_SYS_AOS_CLI_ENABLE:=0
CONFIG_SYS_AOS_LOOP_ENABLE:=1
CONFIG_SYS_BLOG_ENABLE:=1
CONFIG_SYS_DMA_ENABLE:=0
CONFIG_SYS_USER_VFS_ROMFS_ENABLE:=0
CONFIG_BL602_USE_ROM_DRIVER:=1
CONFIG_BT_CENTRAL:=1
CONFIG_BT_OBSERVER:=1
CONFIG_BT_PERIPHERAL:=1
CONFIG_BT_STACK_CLI:=1
CONFIG_BT_WIFIPROV_SERVER:=1
CONFIG_WIFI:=0
CONF_ENABLE_COREDUMP:=1
LOG_ENABLED_COMPONENTS:=blog_testc hosal loopset looprt bloop gpioStep 5. Write the README.md file (code below; this file is not involved in execution)
Click to expand: ## Blink Example
bash
## Blink Example
## Example Output
As you run the example, you will see the
log
:
Booting Ai-WB2 Modules...
RISC-V Core Feature:RV32-ACFIMX
Build Version: release_bl_iot_sdk_1.6.38
Build Date: Oct 8 2022
Build Time: 15:42:26
blog init
set
power on level 2, 2, 2.
[IRQ] Clearing and Disable all the pending IRQ...
[ 0][INFO: hal_boot2.c: 282] [HAL] [BOOT2] Active Partition[0] consumed 596 Bytes
[ 0][INFO: hal_boot2.c: 82] ======= PtTable_Config @0x4200d158=======
[ 0][INFO: hal_boot2.c: 83] magicCode 0x54504642; version 0x0000; entryCnt 7; age 0; crc32 0x12DF9A26
[ 0][INFO: hal_boot2.c: 89] idx
type
device activeIndex name Address[0] Address[1] Length[0] Length[1] age
[ 0][INFO: hal_boot2.c: 91] [00] 00 0 0 FW 0x00010000 0x000e8000 0x000d8000 0x00088000 0
[ 0][INFO: hal_boot2.c: 91] [01] 02 0 0 mfg 0x00170000 0x00000000 0x00032000 0x00000000 0
[ 0][INFO: hal_boot2.c: 91] [02] 03 0 0 media 0x001a2000 0x00000000 0x00047000 0x00000000 0
[ 0][INFO: hal_boot2.c: 91] [03] 04 0 0 PSM 0x001e9000 0x00000000 0x00008000 0x00000000 0
[ 0][INFO: hal_boot2.c: 91] [04] 05 0 0 KEY 0x001f1000 0x00000000 0x00002000 0x00000000 0
[ 0][INFO: hal_boot2.c: 91] [05] 06 0 0 DATA 0x001f3000 0x00000000 0x00005000 0x00000000 0
[ 0][INFO: hal_boot2.c: 91] [06] 07 0 0 factory 0x001f8000 0x00000000 0x00007000 0x00000000 0
[ 0][INFO: bl_flash.c: 391] ======= FlashCfg magiccode @0x42049c18=======
[ 0][INFO: bl_flash.c: 392] mid 0x5E
[ 0][INFO: bl_flash.c: 393] clkDelay 0x1
[ 0][INFO: bl_flash.c: 394] clkInvert 0x1
[ 0][INFO: bl_flash.c: 395] sector size 4KBytes
[ 0][INFO: bl_flash.c: 396] page size 256Bytes
[ 0][INFO: bl_flash.c: 397] ---------------------------------------------------------------
[ 0][INFO: hal_board.c:1249] [MAIN] [BOARD] [FLASH] addr from partition is 001f8000, ret is 0
[ 0][INFO: hal_board.c:1257] [MAIN] [BOARD] [XIP] addr from partition is 231e7000, ret is 0
Note: The color order could be different according to the LED model.
## Troubleshooting
For any technical queries, please open an [issue](https://github.com/Ai-Thinker-Open/Ai-Thinker-WB2/issues) on GitHub. We will get back to you soon.Step 6. Enter the gpio directory and create the following file
Step 7. Write the main.c file according to the schematic (code below)
Click to expand full code
c
#
include
<stdio.h>
#
include
<string.h>
#
include
<FreeRTOS.h>
#
include
<task.h>
#
include
<bl_gpio.h>
#
define
GPIO_B_PIN 3
#
define
GPIO_R_PIN 14
#
define
GPIO_G_PIN 17
void
blink_test
(
void
*param)
{
bl_gpio_enable_output(GPIO_B_PIN,
0
,
0
);
bl_gpio_enable_output(GPIO_R_PIN,
0
,
0
);
bl_gpio_enable_output(GPIO_G_PIN,
0
,
0
);
while
(
1
)
{
bl_gpio_output_set(GPIO_B_PIN,
1
);
vTaskDelay(
1000
);
bl_gpio_output_set(GPIO_B_PIN,
0
);
bl_gpio_output_set(GPIO_R_PIN,
1
);
vTaskDelay(
1000
);
bl_gpio_output_set(GPIO_R_PIN,
0
);
bl_gpio_output_set(GPIO_G_PIN,
1
);
vTaskDelay(
1000
);
bl_gpio_output_set(GPIO_G_PIN,
0
);
}
}
void
main
(
void
)
{
xTaskCreate(blink_test,
"blink"
,
1024
,
NULL
,
15
,
NULL
);
}Step 8. Write the bouffalo.mk file (code below)
Click to expand: #
bash
#
## "main" pseudo-component makefile.
#
## (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)
include $(BL60X_SDK_PATH)/components/network/ble/ble_common.mk
ifeq ($(CONFIG_ENABLE_PSM_RAM),1)
CPPFLAGS += -DCONF_USER_ENABLE_PSRAM
endif
ifeq ($(CONFIG_ENABLE_CAMERA),1)
CPPFLAGS += -DCONF_USER_ENABLE_CAMERA
endif
ifeq ($(CONFIG_ENABLE_BLSYNC),1)
CPPFLAGS += -DCONF_USER_ENABLE_BLSYNC
endif
ifeq ($(CONFIG_ENABLE_VFS_SPI),1)
CPPFLAGS += -DCONF_USER_ENABLE_VFS_SPI
endif
ifeq ($(CONFIG_ENABLE_VFS_ROMFS),1)
CPPFLAGS += -DCONF_USER_ENABLE_VFS_ROMFS
endif2. Compile and Flash
Step 1. Enter the ~/Ai-Thinker-WB2/applications/get-started/gpio directory
cd ~/Ai-Thinker-WB2/applications/get-started/gpio
Step 2. Run make -j8
Step 3. Run make flash p=/dev/ttyUSB0 b=115200 (the module needs to be connected to the virtual machine at this point)
3. Execution Result Screenshots
Original link: <https://blog.csdn.net/qq_54193285/article/details/135907812?spm=1001.2014.3001.5501>