Add UART support to RP2 platform

pguyot · pguyot · commit fa613dd0697a · 2026-02-20T23:26:50.000+01:00
Signed-off-by: Paul Guyot &lt;pguyot@kallisys.net&gt;
diff --git a/libs/avm_rp2/src/CMakeLists.txt b/libs/avm_rp2/src/CMakeLists.txt
@@ -27,6 +27,7 @@ set(ERLANG_MODULES
     i2c
     pico
     spi
+    uart
 )
 
 pack_archive(avm_rp2 DEPENDS_ON eavmlib ERLC_FLAGS +warnings_as_errors MODULES ${ERLANG_MODULES})
diff --git a/src/platforms/rp2/src/lib/CMakeLists.txt b/src/platforms/rp2/src/lib/CMakeLists.txt
@@ -33,6 +33,7 @@ set(SOURCE_FILES
     gpiodriver.c
     i2cdriver.c
     spidriver.c
+    uartdriver.c
     networkdriver.c
     otp_crypto_platform.c
     platform_defaultatoms.c
@@ -61,6 +62,7 @@ target_link_libraries(
         hardware_gpio
         hardware_i2c
         hardware_spi
+        hardware_uart
         hardware_sync
         pico_float
         pico_mbedtls
@@ -125,4 +127,4 @@ if (NOT AVM_DISABLE_JIT)
     target_link_options(libAtomVM${PLATFORM_LIB_SUFFIX} PUBLIC "SHELL:-Wl,-u -Wl,jit_stream_flash_get_nif")
 endif()
 
-target_link_options(libAtomVM${PLATFORM_LIB_SUFFIX} PUBLIC "SHELL:-Wl,-u -Wl,gpio_nif -Wl,-u -Wl,i2c_nif -Wl,-u -Wl,spi_nif -Wl,-u -Wl,otp_crypto_nif")
+target_link_options(libAtomVM${PLATFORM_LIB_SUFFIX} PUBLIC "SHELL:-Wl,-u -Wl,gpio_nif -Wl,-u -Wl,i2c_nif -Wl,-u -Wl,spi_nif -Wl,-u -Wl,uart_nif -Wl,-u -Wl,otp_crypto_nif")
diff --git a/src/platforms/rp2/src/lib/uartdriver.c b/src/platforms/rp2/src/lib/uartdriver.c

Original file line number	Diff line number	Diff line change
`@@ -27,6 +27,7 @@ set(ERLANG_MODULES`
`27`	`27`	`i2c`
`28`	`28`	`pico`
`29`	`29`	`spi`
	`30`	`+ uart`
`30`	`31`	`)`
`31`	`32`
`32`	`33`	`pack_archive(avm_rp2 DEPENDS_ON eavmlib ERLC_FLAGS +warnings_as_errors MODULES ${ERLANG_MODULES})`