int main(void)
{
uint32_t baudrate, dtr = 0;
int bytes_read;
QM_PUTS("Starting: USB CDC ACM Example");
qm_irq_request(QM_IRQ_USB_0_INT, qm_usb_0_isr);
/* Enable the USB VBUS on Quark SE DevBoard. */
enable_usb_vbus();
/* Init USB CDC ACM. */
cdc_acm_init();
QM_PUTS("CDC ACM Initialized. Waiting for DTR.");
do {
cdc_acm_line_ctrl_get(LINE_CTRL_DTR, &dtr);
} while (!dtr);
QM_PUTS("DTR set, start test.");
/* Wait 1 sec for the host to do all settings. */
clk_sys_udelay(ONE_SEC_UDELAY);
if (cdc_acm_line_ctrl_get(LINE_CTRL_BAUD_RATE, &baudrate)) {
QM_PUTS("Failed to get baudrate, ret code.");
} else {
QM_PRINTF("Baudrate detected: %d\n", baudrate);
}
QM_PUTS("USB CDC ACM set. Switch to the USB Serial Console.");
cdc_acm_irq_callback_set(interrupt_handler);
write_data(banner1, strlen(banner1));
write_data(banner2, strlen(banner2));
/* Enable RX interrupts. */
cdc_acm_irq_rx_enable();
/* Echo the received data. */
while (1) {
read_and_echo_data(&bytes_read);
}
return 0;
}
int main(int argc, char const *argv[])
{
int ret;
printf("start buffers: %d, size=%d total size=%d\n",
sizeof(buf_pool)/sizeof(uart_buf_t), sizeof(uart_buf_t), sizeof(buf_pool));
uart_dev = device_get_binding(CONFIG_CDC_ACM_PORT_NAME);
if (uart_dev == NULL) {
printf("%s: error\n", __FUNCTION__);
return 0;
}
ret = uart_line_ctrl_set(uart_dev, LINE_CTRL_BAUD_RATE, 115200);
if (ret)
printf("Baudrate set failed %d\n", ret);
k_sleep(1000);
uart_irq_rx_disable(uart_dev);
uart_irq_tx_disable(uart_dev);
/* drain the fifo */
uint8_t c;
while(uart_fifo_read(uart_dev, &c, 1)) {
continue;
}
uart_irq_callback_set(uart_dev, interrupt_handler);
uart_irq_rx_enable(uart_dev);
read_and_echo_data(uart_dev);
return 0;
}