7925ba245d
- Newlib uses significantly more stack space when printing to an unbuffered stream - For examples tests, disabling buffering on stdout is not really required This issue was found during one of the OTA example test failure, root cause being stack overflow in `esp_event` task.
30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
/* Common functions for protocol examples, to configure stdin and stdout.
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include "protocol_examples_common.h"
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#include "esp_err.h"
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#include "esp_vfs_dev.h"
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#include "driver/uart.h"
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#include "sdkconfig.h"
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esp_err_t example_configure_stdin_stdout(void)
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{
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// Initialize VFS & UART so we can use std::cout/cin
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setvbuf(stdin, NULL, _IONBF, 0);
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/* Install UART driver for interrupt-driven reads and writes */
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ESP_ERROR_CHECK( uart_driver_install( (uart_port_t)CONFIG_ESP_CONSOLE_UART_NUM,
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256, 0, 0, NULL, 0) );
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/* Tell VFS to use UART driver */
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esp_vfs_dev_uart_use_driver(CONFIG_ESP_CONSOLE_UART_NUM);
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esp_vfs_dev_uart_set_rx_line_endings(ESP_LINE_ENDINGS_CR);
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/* Move the caret to the beginning of the next line on '\n' */
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esp_vfs_dev_uart_set_tx_line_endings(ESP_LINE_ENDINGS_CRLF);
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return ESP_OK;
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}
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