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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.15
mikroSDK Library: 2.0.0.0
Category: USB
Downloaded: 235 times
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License: MIT license
USB UART 4 Click offers a USB to asynchronous serial data (UART) interface, allowing the microcontroller based designs to communicate with the personal computer, in a very simple way. It is equipped with the FT232RL, a very popular USB to UART interface IC, used on many MikroElektronika devices - both for its reliability and simplicity. USB UART Click is used for whenever there is a need to seamlessly and effortlessly interface the UART lines to a personal computer
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USB UART 4 Click offers a USB to asynchronous serial data (UART) interface, allowing the microcontroller based designs to communicate with the personal computer, in a very simple way. It is equipped with the FT232RL, a very popular USB to UART interface IC, used on many MikroElektronika devices - both for its reliability and simplicity. USB UART Click is used for whenever there is a need to seamlessly and effortlessly interface the UART lines to a personal computer
We provide a library for the USBUART4 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
This library contains API for USBUART4 Click driver.
usbuart4_cfg_setup
Config Object Initialization function.
void usbuart4_cfg_setup ( usbuart4_cfg_t *cfg );
usbuart4_init
Initialization function.
err_t usbuart4_init ( usbuart4_t *ctx, usbuart4_cfg_t *cfg );
usbuart4_pwr_ctrl
This function sets the Click turns Click on.
void usbuart4_pwr_ctrl ( usbuart4_t *ctx, uint8_t state );
usbuart4_set_cts
This function sets CTS pin.
void usbuart4_set_cts ( usbuart4_t *ctx, uint8_t state );
usbuart4_send_command
This function is used for sending commands.
void usbuart4_send_command ( usbuart4_t *ctx, char *command );
This example reads and processes data from USB UART 4 clicks.
The demo application is composed of two sections :
Initializes driver and power module.
void application_init ( void ) {
log_cfg_t log_cfg; /**< Logger config object. */
usbuart4_cfg_t usbuart4_cfg; /**< Click config object. */
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
Delay_ms ( 100 );
// Click initialization.
usbuart4_cfg_setup( &usbuart4_cfg );
USBUART4_MAP_MIKROBUS( usbuart4_cfg, MIKROBUS_1 );
err_t init_flag = usbuart4_init( &usbuart4, &usbuart4_cfg );
if ( UART_ERROR == init_flag ) {
log_error( &logger, " Application Init Error. " );
log_info( &logger, " Please, run program again... " );
for ( ; ; );
}
app_buf_len = 0;
usbuart4_pwr_ctrl( &usbuart4, USBUART4_POWER_ON );
usbuart4_set_cts( &usbuart4, USBUART4_CTS_NO_ACTIVE );
usbuart4_set_mode( &usbuart4, USBUART4_MODE_NORMAL );
log_info( &logger, " Application Task " );
}
Reads data and echos it back to device and logs it to board.
void application_task ( void ) {
app_buf_len = usbuart4_generic_read( &usbuart4, app_buf, PROCESS_BUFFER_SIZE );
if ( app_buf_len > 0 ) {
log_printf( &logger, "%s", app_buf );
memset( app_buf, 0, PROCESS_BUFFER_SIZE );
}
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Other Mikroe Libraries used in the example:
Additional notes and informations
Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.
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