BLE UART bridge

RE: BLE UART bridge

seongmincho — Tue, 20 Aug 2024 07:12:33 GMT

When I switched from PuTTY to MATLAB, the issue was resolved. I’m not sure why, but I suspect it’s because MATLAB has a higher data rate for receiving data.

RE: BLE UART bridge

seongmincho — Mon, 19 Aug 2024 13:48:36 GMT

This code also has the same issue.

- below is other version code

static uint8_t buffer[8192];
static uint8_t ble_data_received(struct bt_nus_client *nus, const uint8_t *data, uint16_t len){
    ARG_UNUSED(nus);
    uart_irq_tx_enable(usbd_dev);
    int rb_len;
    int send_len;
    rb_len = ring_buf_put(&ringbuf1, data, len);
    if (rb_len < len) {
        LOG_WRN("ble_data_received - %dth  Current RX buffer full, dropped %d bytes", rx_count, len - rb_len);
    }
    if(uart_irq_update(usbd_dev) && uart_irq_is_pending(usbd_dev)){
        if (uart_irq_tx_ready(usbd_dev)){
            rb_len = ring_buf_get(&ringbuf1, buffer, sizeof(buffer));
            if (rb_len != 0) {
                send_len = uart_fifo_fill(usbd_dev, buffer, rb_len);
                if (send_len < rb_len) {
                    ring_buf_put(current_rx_buf, buffer + send_len, rb_len - send_len);
                    LOG_WRN("ble_data_received - send_len < rb_len: %d", rb_len - send_len);
                }
            }
        }
    }
    rx_count++;
    return BT_GATT_ITER_CONTINUE;
}