RT-Thread 点LED, 顺便报RT Studio Reflash的BUG
1, 参见 @tlled 仁兄的帖子，做了一个LED点灯程序。
下载最新的RT Studio，导入SDK。
这个IDE 2.0已经做得很方便了，通过简单几个选项，模板化自动生成可以run的例程。
2，需要手工添加LED程序led.[c|h]
代码片断贴在这里，所有代码打包见附件。
led.h- #ifndef LED_H_
- #define LED_H_
- #include <drv_gpio.h>
- #define LED2_PIN GET_PIN(D, 13) // PD13
- #define LED3_PIN GET_PIN(D, 14) // PD14
- #define LED4_PIN GET_PIN(D, 15) // PD15
- int led_init(int led);
- int led_on(int led);
- int led_off(int led);
- int led_toggle(int led);
- #endif // LED_H_
led.c
- #include <rtdevice.h> // RT-Thread pin 设备需要包含此头文件
- #include "led.h"
- int led_init(int led)
- {
- /* LED 引脚为推挽输出模式 */
- rt_pin_mode(led, PIN_MODE_OUTPUT);
- return 0;
- }
- int led_on(int led)
- {
- /* API 输出低电平 */
- rt_pin_write(led, PIN_LOW);
- return 0;
- }
- int led_off(int led)
- {
- /* API 输出高电平 */
- rt_pin_write(led, PIN_HIGH);
- return 0;
- }
- int led_toggle(int led)
- {
- /* API 读出当前电平 然后输出相反电平 */
- rt_pin_write(led, !rt_pin_read(led));
- return 0;
- }
当然还有main.c
- /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date Author Notes
- * 2021-01-28 RT-Thread first version
- */
- #include <rtthread.h>
- #define DBG_TAG "main"
- #define DBG_LVL DBG_LOG
- #include <rtdbg.h>
- #include "led.h"
- #if 0
- int main(void)
- {
- int count = 1;
- while (count++)
- {
- LOG_D("Hello RT-Thread!");
- rt_thread_mdelay(1000);
- }
- return RT_EOK;
- }
- #else
- int main(void)
- {
- int count = 1;
- /* user app entry */
- led_init(LED2_PIN);
- led_init(LED3_PIN);
- led_init(LED4_PIN);
- led_on(LED2_PIN);
- led_on(LED3_PIN);
- led_on(LED4_PIN);
- while (count++)
- {
- LOG_D("Hello RT, Red!");
- led_toggle(LED2_PIN);
- rt_thread_mdelay(500);
- LOG_D("Hello RT, Yellow!");
- led_toggle(LED3_PIN);
- rt_thread_mdelay(500);
- LOG_D("Hello RT, Green!");
- led_toggle(LED4_PIN);
- rt_thread_mdelay(1000);
- LOG_D("Hello RT-Thread! Next One!");
- }
- return RT_EOK;
- }
- #endif
3，在Download Reflash的过程中，确实发现第一次Download成功之后，无法继续Download的情况，
多次试验后，发现和Erase过程强相关，感觉是Erease memory没有处理干净。
- start download flash :2021-01-28 15:47:16
- D:\RT-ThreadStudio>cd /d D:\RT-ThreadStudio\repo\Extract\Debugger_Support_Packages\RealThread\PyOCD\0.1.1
- D:\RT-ThreadStudio\repo\Extract\Debugger_Support_Packages\RealThread\PyOCD\0.1.1>pyocd.exe flash --target=AT32F407VGT7 --erase=auto --frequency=1000000 D:\RT-ThreadStudio\workspace\at32f407vgt7\at32f407vgt7_hello\Debug\rtthread.bin
- [---|---|---|---|---|---|---|---|---|----]
- 0003626:CRITICAL:__main__:program_page(0x0) error: 1
- Traceback (most recent call last):
- File "pyocd\__main__.py", line 362, in run
- File "pyocd\__main__.py", line 527, in do_flash
- File "pyocd\flash\file_programmer.py", line 158, in program
- File "pyocd\flash\loader.py", line 168, in commit
- File "pyocd\flash\builder.py", line 470, in program
- File "pyocd\flash\builder.py", line 908, in _sector_erase_program_double_buffer
- pyocd.core.exceptions.FlashProgramFailure: program_page(0x0) error: 1
- [==================
- completed, elapse time :5797ms.
只能通过别的过程把Flash擦除干净之后，才能正常下载。
4，另外一个问题是编译返回码错误，编译成功了，返回值（-1）
16:39:47 **** Incremental Build of configuration Debug for project at32f407vgt7_hello ****
make -j4 all
arm-none-eabi-size --format=berkeley "rtthread.elf"
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