uart driver tx size limit

Question

Hi, 
 I'm using uart driver on nRF52840. The APIs only support 256 bytes in length (TX). I wonder what I should do if I want to transmit more than 256 bytes at once? 
 Thanks, 
 Ye-Sheng

user73165 · Accepted Answer

Hi, 
 I think this is due to combability with the nRF52832 since it can maximum send 256 bytes(MAXCNT = 8). You can use the libUARTE library instead: 
 nrf_libuarte_drv allows transmitting packets with length of 65535 bytes maximum. 
 
 regards 
 Jared

uart driver tx size limit

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