about tx and rx in uart application

RE: about tx and rx in uart application

Stefan Birnir Sverrisson — Mon, 21 Jul 2014 09:13:12 GMT

Have you seen this thread?
devzone.nordicsemi.com/.../

RE: about tx and rx in uart application

DevineFelix — Sun, 20 Jul 2014 09:56:40 GMT

Luckily the thoughput S120 can afford to offer can fullfill my application.

RE: about tx and rx in uart application

DevineFelix — Sun, 20 Jul 2014 09:54:50 GMT

Ok,after i read the S120 softdevice specification v1.0, i get to know that there can be only one packet per connection event in transmission and reception. My question update now- is there also only 1 packet per connection event when S110 and S120 communiate between each other ? thank you.

RE: about tx and rx in uart application

DevineFelix — Sun, 20 Jul 2014 07:02:23 GMT

I used the api sd_ble_tx_buffer_count_get(),and get the count of buffer is 1. Can it be changed to 6?

RE: about tx and rx in uart application

DevineFelix — Sun, 20 Jul 2014 06:57:25 GMT

please forget about write command and write request. Now my problem is about the tx buffer count. thank you.

RE: about tx and rx in uart application

DevineFelix — Sun, 20 Jul 2014 04:10:51 GMT

I tried both write command and write request, but found few differences. Write command is carried out some times until BLE_ERROR_NO_TX_BUFFERS is received. The procedure is implemented in a timer handler executed periodically in a poll mode with a condition that BLE_EVT_TX_COMPLETE is received. Number of packets per event With regard to number of packets per connection eventmentioned in devzone.nordicsemi.com/questi... is only 1. what shall i do to enlarge the throughput by increasing the Number of packets per event? thank you

RE: about tx and rx in uart application

Stefan Birnir Sverrisson — Fri, 18 Jul 2014 12:08:49 GMT

Are you writing with a write command or a write request? Writing with write command is much faster than write request as write request requires acknowledgement for each sent packet