Hi,
I'm using c++ SDK to learn Raspi pico, and I was trying to use to receive keyboard input through minicom by USB connection. But seems it receive the wrong input...
Here is part of my program:First, I found the printf() in key_press_func() never work, I don't know why.
Second, whatever the key I pressed, the printf() in key_pressed_worker_func() is just "? is pressed". I don't understand why all key press is converted to a single character '?'. If I commend out the line then the character becomes the initialized one '!' (this is normal though).
Here is the output in minicom:Any help please?
I'm using c++ SDK to learn Raspi pico, and I was trying to use
Code:
getchar_timeout_ms()Here is part of my program:
Code:
char key = '!';void key_pressed_worker_func(async_context_t* context, async_when_pending_worker_t* worker){ printf("%c is pressed\n", key); cyw43_arch_disable_sta_mode();}static async_when_pending_worker_t key_pressed_worker = { .do_work = key_pressed_worker_func};void key_pressed_func(void* param){ key = getchar_timeout_us(0); printf("key is pressed");// if(key == 'd' || key == 'D'){ async_context_set_work_pending((async_context_t*)param, &key_pressed_worker);// }}int main(){ stdio_init_all(); if(cyw43_arch_init()){ printf("failed to initialise\n"); return 1; } async_context_add_when_pending_worker(cyw43_arch_async_context(), &key_pressed_worker); stdio_set_chars_available_callback(key_pressed_func, cyw43_arch_async_context());//something else after this lineSecond, whatever the key I pressed, the printf() in key_pressed_worker_func() is just "? is pressed". I don't understand why all key press is converted to a single character '?'. If I commend out the line
Code:
key = getchar_timeout_us(0);Here is the output in minicom:
Code:
Welcome to minicom 2.9OPTIONS: Compiled on Feb 7 2024, 07:41:55.Port /dev/tty.usbmodem21201, 21:19:35Press Meta-Z for help on special keys? is pressed? is pressed? is pressed? is pressed? is pressed? is pressed? is pressed```Statistics: Posted by crisps — Fri Feb 23, 2024 12:38 pm — Replies 4 — Views 81