From 21bfc93676c56e2265f330170d319da2c480987d Mon Sep 17 00:00:00 2001 From: lonkaars Date: Thu, 9 May 2024 15:18:51 +0200 Subject: working FreeRTOS + lwIP blink/wifi connect example again --- main/init.h | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) (limited to 'main/init.h') diff --git a/main/init.h b/main/init.h index 1f931dc..97b2e20 100644 --- a/main/init.h +++ b/main/init.h @@ -1,5 +1,38 @@ #pragma once -/** @brief initialize all peripherals on the pico */ +#include +#include + +/** + * @brief init function complete event group handle + * + * This is required to make sure the main task waits until initialization is + * complete. Due to the combination of FreeRTOS + lwIP, the initialization + * should be done while the task scheduler is running. Specifically the + * cyw43_arch_init functions make the pico hang indefinitely when used while + * the task scheduler is not running. + * + * @note `init_complete` only utilizes LSB, so `uxBitsToWaitFor` should always + * be set to *1* + */ +extern EventGroupHandle_t init_complete; + +/** + * @brief initialize all peripherals on the pico + * + * This function only synchronously initializes the standard input/output (used + * for `printf` and `panic`), and queues all other types of initialization in + * the `init` task using FreeRTOS. + * + * @note Tasks dependent on the wifi being initialized should use the + * `init_complete` event group to wait for initialization to complete! + */ void init(); +/** + * @brief block task until all initialization is complete + * + * utility function, see above comments + */ +void await_init(); + -- cgit v1.2.3