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hello_double_tap: use pico_bootsel_via_double_reset from SDK

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This commit is contained in:
Luke Wren
2021-02-16 13:53:27 +00:00
committed by Graham Sanderson
parent cad9225899
commit 6cc888c255
5 changed files with 16 additions and 55 deletions
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11
system/hello_double_tap/CMakeLists.txt
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@@ -2,12 +2,19 @@ add_executable(hello_double_tap
hello_double_tap.c
)
# Double tap reset into bootrom is injected by linking with the double_tap_usb_boot library
# Double tap reset into bootrom is injected by linking with the
# pico_bootsel_via_double_reset library
target_link_libraries(hello_double_tap
pico_stdlib
double_tap_usb_boot
pico_bootsel_via_double_reset
)
# Entering the bootloader in this way also lets us specify a GPIO to be used
# as a bootloader activity LED:
target_compile_definitions(hello_double_tap PRIVATE
PICO_BOOTSEL_VIA_DOUBLE_RESET_ACTIVITY_LED=25
)
pico_add_extra_outputs(hello_double_tap)
# add url via pico_set_program_url

10
system/hello_double_tap/hello_double_tap.c
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@@ -6,10 +6,14 @@
#include "pico/stdlib.h"
// This is a regular old LED blinking example, however it is linked with double_tap_usb_boot
// so pressing reset quickly twice, will reset into USB bootloader
// This is a regular old LED blinking example, however it is linked with the
// `pico_bootsel_via_double_reset` library, so resetting the board twice
// quickly will enter the USB bootloader. This is useful for boards which have
// a reset button but no BOOTSEL, as long as you remember to always link the
// `pico_bootsel_via_double_reset` library!
int main() {
const uint LED_PIN = 21;
const uint LED_PIN = PICO_DEFAULT_LED_PIN;
gpio_init(LED_PIN);
gpio_set_dir(LED_PIN, GPIO_OUT);
while (true) {