diff options
Diffstat (limited to 'apps/uart-display')
-rwxr-xr-x | apps/uart-display/Makefile | 10 | ||||
-rw-r--r-- | apps/uart-display/app.c | 104 |
2 files changed, 114 insertions, 0 deletions
diff --git a/apps/uart-display/Makefile b/apps/uart-display/Makefile new file mode 100755 index 00000000..5534c178 --- /dev/null +++ b/apps/uart-display/Makefile @@ -0,0 +1,10 @@ +TOP = ../.. +include $(TOP)/make.mk + +INCLUDES += \ + -I./ + +SRCS += \ + ./app.c + +include $(TOP)/rules.mk diff --git a/apps/uart-display/app.c b/apps/uart-display/app.c new file mode 100644 index 00000000..e0d6acfe --- /dev/null +++ b/apps/uart-display/app.c @@ -0,0 +1,104 @@ +#include <stdio.h> +#include <string.h> +#include <peripheral_clk_config.h> +#include "watch.h" + +/* +Beginnings of a program to take UART input and update the screen accordingly. +Use alongside a prpgram that communicates with the watch over the UART pins. +This CircuitPython script turns the LED red in response to pressing the LIGHT button, +and turns it off when the MODE button is pressed: + +``` +import board +import busio + +uart = busio.UART(board.TX, board.RX, baudrate=19200) + +while True: + uart.write(b"\x00") + data = uart.read(1) + + if data is not None: + data_string = ''.join([chr(b) for b in data]) + print(data_string, end="") + if data_string[0] == 'L': + uart.write(b"R") + elif data_string[0] == 'M': + uart.write(b"O") +``` +*/ + + +char button_pressed = 0; + +static void cb_light_pressed(void) { + button_pressed = 'L'; +} + +static void cb_mode_pressed(void) { + button_pressed = 'M'; +} + +static void cb_alarm_pressed(void) { + button_pressed = 'A'; +} + +void app_init(void) { + watch_enable_leds(); + watch_enable_buzzer(); + + watch_enable_external_interrupts(); + watch_register_interrupt_callback(BTN_MODE, cb_mode_pressed, INTERRUPT_TRIGGER_RISING); + watch_register_interrupt_callback(BTN_LIGHT, cb_light_pressed, INTERRUPT_TRIGGER_RISING); + watch_register_interrupt_callback(BTN_ALARM, cb_alarm_pressed, INTERRUPT_TRIGGER_RISING); + + watch_enable_display(); + + watch_enable_uart(A2, A1, 19200); +} + +void app_wake_from_backup(void) { +} + +void app_setup(void) { +} + +void app_prepare_for_standby(void) { +} + +void app_wake_from_standby(void) { +} + +bool app_loop(void) { + char buf[3]; + + if (button_pressed) { + sprintf(buf, "%c", button_pressed); + printf("%s\n", buf); + watch_uart_puts(buf); + button_pressed = 0; + } + char char_received = watch_uart_getc(); + if (char_received) { + switch (char_received) { + case 'R': + watch_set_led_red(); + break; + case 'G': + watch_set_led_green(); + break; + case 'Y': + watch_set_led_yellow(); + break; + case 'O': + watch_set_led_off(); + break; + case 'U': + // receive a display update? + break; + } + } + + return false; +} |