From c6c886d1cba43df93ae004b394b46c80a33aaa02 Mon Sep 17 00:00:00 2001 From: Samuel Date: Mon, 7 Jul 2025 21:27:44 +0200 Subject: [PATCH] presque fonctionnel --- cdc_app.c | 38 +++++++++++++++----------- pico_sdk_import.cmake | 62 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 84 insertions(+), 16 deletions(-) create mode 100644 pico_sdk_import.cmake diff --git a/cdc_app.c b/cdc_app.c index b1b137e..d9f2bc9 100644 --- a/cdc_app.c +++ b/cdc_app.c @@ -85,29 +85,35 @@ void tuh_cdc_rx_cb(uint8_t idx) printf((char*) buf); } -void tuh_cdc_mount_cb(uint8_t idx) -{ - tuh_cdc_itf_info_t itf_info = { 0 }; +// Invoked when a device with CDC interface is mounted +// idx is index of cdc interface in the internal pool. +void tuh_cdc_mount_cb(uint8_t idx) { + tuh_itf_info_t itf_info = {0}; tuh_cdc_itf_get_info(idx, &itf_info); - printf("CDC Interface is mounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.bInterfaceNumber); + printf("CDC Interface is mounted: address = %u, itf_num = %u\r\n", itf_info.daddr, + itf_info.desc.bInterfaceNumber); #ifdef CFG_TUH_CDC_LINE_CODING_ON_ENUM - // CFG_TUH_CDC_LINE_CODING_ON_ENUM must be defined for line coding is set by tinyusb in enumeration - // otherwise you need to call tuh_cdc_set_line_coding() first - cdc_line_coding_t line_coding = { 0 }; - if ( tuh_cdc_get_local_line_coding(idx, &line_coding) ) - { - printf(" Baudrate: %lu, Stop Bits : %u\r\n", line_coding.bit_rate, line_coding.stop_bits); - printf(" Parity : %u, Data Width: %u\r\n", line_coding.parity , line_coding.data_bits); + // If CFG_TUH_CDC_LINE_CODING_ON_ENUM is defined, line coding will be set by tinyusb stack + // while eneumerating new cdc device + cdc_line_coding_t line_coding = {0}; + if (tuh_cdc_get_local_line_coding(idx, &line_coding)) { + printf(" Baudrate: %" PRIu32 ", Stop Bits : %u\r\n", line_coding.bit_rate, line_coding.stop_bits); + printf(" Parity : %u, Data Width: %u\r\n", line_coding.parity, line_coding.data_bits); } +#else + // Set Line Coding upon mounted + cdc_line_coding_t new_line_coding = { 115200, CDC_LINE_CODING_STOP_BITS_1, CDC_LINE_CODING_PARITY_NONE, 8 }; + tuh_cdc_set_line_coding(idx, &new_line_coding, NULL, 0); #endif } -void tuh_cdc_umount_cb(uint8_t idx) -{ - tuh_cdc_itf_info_t itf_info = { 0 }; +// Invoked when a device with CDC interface is unmounted +void tuh_cdc_umount_cb(uint8_t idx) { + tuh_itf_info_t itf_info = {0}; tuh_cdc_itf_get_info(idx, &itf_info); - printf("CDC Interface is unmounted: address = %u, itf_num = %u\r\n", itf_info.daddr, itf_info.bInterfaceNumber); -} + printf("CDC Interface is unmounted: address = %u, itf_num = %u\r\n", itf_info.daddr, + itf_info.desc.bInterfaceNumber); +} \ No newline at end of file diff --git a/pico_sdk_import.cmake b/pico_sdk_import.cmake new file mode 100644 index 0000000..28efe9e --- /dev/null +++ b/pico_sdk_import.cmake @@ -0,0 +1,62 @@ +# This is a copy of /external/pico_sdk_import.cmake + +# This can be dropped into an external project to help locate this SDK +# It should be include()ed prior to project() + +if (DEFINED ENV{PICO_SDK_PATH} AND (NOT PICO_SDK_PATH)) + set(PICO_SDK_PATH $ENV{PICO_SDK_PATH}) + message("Using PICO_SDK_PATH from environment ('${PICO_SDK_PATH}')") +endif () + +if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT} AND (NOT PICO_SDK_FETCH_FROM_GIT)) + set(PICO_SDK_FETCH_FROM_GIT $ENV{PICO_SDK_FETCH_FROM_GIT}) + message("Using PICO_SDK_FETCH_FROM_GIT from environment ('${PICO_SDK_FETCH_FROM_GIT}')") +endif () + +if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_PATH} AND (NOT PICO_SDK_FETCH_FROM_GIT_PATH)) + set(PICO_SDK_FETCH_FROM_GIT_PATH $ENV{PICO_SDK_FETCH_FROM_GIT_PATH}) + message("Using PICO_SDK_FETCH_FROM_GIT_PATH from environment ('${PICO_SDK_FETCH_FROM_GIT_PATH}')") +endif () + +set(PICO_SDK_PATH "${PICO_SDK_PATH}" CACHE PATH "Path to the Raspberry Pi Pico SDK") +set(PICO_SDK_FETCH_FROM_GIT "${PICO_SDK_FETCH_FROM_GIT}" CACHE BOOL "Set to ON to fetch copy of SDK from git if not otherwise locatable") +set(PICO_SDK_FETCH_FROM_GIT_PATH "${PICO_SDK_FETCH_FROM_GIT_PATH}" CACHE FILEPATH "location to download SDK") + +if (NOT PICO_SDK_PATH) + if (PICO_SDK_FETCH_FROM_GIT) + include(FetchContent) + set(FETCHCONTENT_BASE_DIR_SAVE ${FETCHCONTENT_BASE_DIR}) + if (PICO_SDK_FETCH_FROM_GIT_PATH) + get_filename_component(FETCHCONTENT_BASE_DIR "${PICO_SDK_FETCH_FROM_GIT_PATH}" REALPATH BASE_DIR "${CMAKE_SOURCE_DIR}") + endif () + FetchContent_Declare( + pico_sdk + GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk + GIT_TAG master + ) + if (NOT pico_sdk) + message("Downloading Raspberry Pi Pico SDK") + FetchContent_Populate(pico_sdk) + set(PICO_SDK_PATH ${pico_sdk_SOURCE_DIR}) + endif () + set(FETCHCONTENT_BASE_DIR ${FETCHCONTENT_BASE_DIR_SAVE}) + else () + message(FATAL_ERROR + "SDK location was not specified. Please set PICO_SDK_PATH or set PICO_SDK_FETCH_FROM_GIT to on to fetch from git." + ) + endif () +endif () + +get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}") +if (NOT EXISTS ${PICO_SDK_PATH}) + message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' not found") +endif () + +set(PICO_SDK_INIT_CMAKE_FILE ${PICO_SDK_PATH}/pico_sdk_init.cmake) +if (NOT EXISTS ${PICO_SDK_INIT_CMAKE_FILE}) + message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' does not appear to contain the Raspberry Pi Pico SDK") +endif () + +set(PICO_SDK_PATH ${PICO_SDK_PATH} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE) + +include(${PICO_SDK_INIT_CMAKE_FILE})