The FP3-SMA Fiber Connector Adapters accommodates optical fibers terminated with SMA connectors. The adapters are attached to the 818-FA Fiber Adapter Mount with two screws, allowing for easier insertion and unplugging of fiber optic connectors. Please note that Newport does not calibrate the detectors with any of these adapters implemented in. The driver outputs and the receiver inputs connect internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus. This port operates over a wide range of common-mode voltage, making the device suitable for party-line applications.

1. Drivers Sma Technologie Port Devices Bluetooth
2. Drivers Sma Technologie Port Devices Lucie
3. Drivers Sma Technologie Port Devices Gigabit

Hi ,

Subject: USART driver using interrupt method for SAMG55J19 device not working as expected

Application : GSM Modem on USART0.
my data length is not fixed.Data is transferring continuously. I want to send the data based on requirement or user selection.Is there any way raise transmit interrupt on program ?

Case 1: USART Transmitting interrupts fired frequently and sending data continuously if the code is in ISR,But not cleared automatically.

US_CSR_TXRDY should be cleared once data is transferred.unable to Unable to set US_CSR_TXRDY and clear the US_CSR_TXRDY flags ?

Is there any way to set and clear the flags in code ?

Drivers Sma Technologie Port Devices Bluetooth

Case2:
Transmitting is not fired and unable sending data if the flags or code in main.
tx_data_ready = true;
g_tx_done= false;
Hardware details
EXT1 Header.
PA9 RX -- TX (ftdi rs232)
PA10 TX -- RX (ftdi rs232)
GND -- GND (ftdi rs232)
Library version : 3.3
IDE Version : ASF 7.0
OS Version : Windows 7
Demo Code: Yes (Attachment)
Target Device : ATSAMG55J19
Development Board : ATSAMG55-XPRO
Compiler : GCC free compiler

Drivers Sma Technologie Port Devices Lucie

// USART configuration
void USART0_Configutation(void)
{
board_init();
//Initialize system clock:
sysclk_init();
static usart_serial_options_t usart_options = {
.baudrate = USART_SERIAL_BAUDRATE,
.charlength = USART_SERIAL_CHAR_LENGTH,
.paritytype = USART_SERIAL_PARITY,
.stopbits = USART_SERIAL_STOP_BIT
};
const sam_usart_opt_t usart_console_settings = {
USART_SERIAL_BAUDRATE,
USART_SERIAL_CHAR_LENGTH,
USART_SERIAL_PARITY,
USART_SERIAL_STOP_BIT ,
US_MR_CHMODE_NORMAL
};
ioport_init(); // call before using IOPORT service
// configure UART pins
ioport_set_port_mode(IOPORT_PIOA, PIO_PA9A_URXD0 | PIO_PA10A_UTXD0, IOPORT_MODE_MUX_A);
ioport_disable_port(IOPORT_PIOA, PIO_PA9A_URXD0 | PIO_PA10A_UTXD0);
// uart pin configuration
pio_configure(PINS_UART0_PIO, PINS_UART0_TYPE, PINS_UART0_MASK, PINS_UART0_ATTR);
//enable the uart peripherial clock
pmc_enable_periph_clk(USART_SERIAL_ID);
usart_serial_init(USART_SERIAL, &usart_options);
// Interrupt
sysclk_enable_peripheral_clock(USART_SERIAL_ID);
usart_init_rs232(USART_SERIAL, &usart_console_settings,
sysclk_get_main_hz());
///* Disable all the interrupts. */
usart_disable_interrupt(USART_SERIAL, ALL_INTERRUPT_MASK);
usart_enable_tx(USART_SERIAL);
usart_enable_rx(USART_SERIAL);
/* Configure and enable interrupt of USART. */
usart_enable_interrupt(USART_SERIAL, US_IER_RXRDY);
usart_enable_interrupt(USART_SERIAL, US_IER_TXRDY|US_IER_TIMEOUT|US_IER_ENDTX|US_IER_TXBUFE);
//US_IER_TIMEOUT
/* Configure and enable interrupt of USART. */
NVIC_EnableIRQ(USART_IRQn);
}
// ISR code
void USART0_Handler(void)
{
uint32_t l_rx_tx_status = 0;
l_rx_tx_status = usart_get_status(USART_SERIAL);
// case I -working code is working in ISR only
tx_data_ready = true;
g_tx_done= false;
if ( (( l_rx_tx_status & US_CSR_TXRDY ) && tx_data_ready ) && (!g_tx_done)){
usart_serial_write_packet(USART_SERIAL, (const char *)AT_COMMAND, sizeof(AT_COMMAND));
delay_ms(1000);
}
tx_data_ready = false;
g_tx_done = true;
}
//application
int main (void)
{
WDT->WDT_MR = WDT_MR_WDDIS; // disable watchdog
USART0_Configutation();
while(1)
{
// case 2 code not working in application
uint32_t l_rx_tx_status = 0;
l_rx_tx_status = usart_get_status(USART_SERIAL);
tx_data_ready = true;
g_tx_done= false;
if ( (( l_rx_tx_status & US_CSR_TXRDY ) && tx_data_ready ) && (!g_tx_done)){
usart_serial_write_packet(USART_SERIAL, (const char *)AT_COMMAND, sizeof(AT_COMMAND));
delay_ms(1000); // testing purpose
}
tx_data_ready = false;
g_tx_done = true;
}
}
Please do need full.

Regards,
Srinivas

Drivers Sma Technologie Port Devices Gigabit

Attachment(s):