uart_configure() error -134 using UART_CFG_PARITY

RE: uart_configure() error -134 using UART_CFG_PARITY

pushparaj — Tue, 10 Jun 2025 09:37:25 GMT

Dont configure uart in main code delete it.
just intitalize in project configure

CONFIG_UART_NRFX=y

CONFIG_UART_1_NRF_PARITY_BIT=y
this will enable the odd parity bit

RE: uart_configure() error -134 using UART_CFG_PARITY

Kenneth — Tue, 10 Dec 2024 11:34:34 GMT

Closing this case since it's very old, the supported parities are listed here for the nRF52833:
https://docs.nordicsemi.com/bundle/ps_nrf52833/page/uarte.html#ariaid-title46

Kenneth

RE: uart_configure() error -134 using UART_CFG_PARITY

cagri — Tue, 10 Dec 2024 08:34:14 GMT

Hello. Are you saying that the nRF52833 does not support even parity? Are you sure about that?

RE: uart_configure() error -134 using UART_CFG_PARITY

Øivind — Wed, 20 Apr 2022 07:37:43 GMT

Ah, I see now that only certain chips support odd parity, nrf52820, nrf52833 and nrf5340.

RE: uart_configure() error -134 using UART_CFG_PARITY

Sean Montgomery — Tue, 19 Apr 2022 15:43:26 GMT

Hi Øivind,

Thanks for getting back to me. When I use UART_CFG_PARITY_EVEN uart_configure() returns zero (success), but when I use UART_CFG_PARITY_ODD, I get a -134 error. Do I need to change any other settings to use odd?

Below is the relevant code. All I'm changing is the commented out line for parity.

Thanks, Sean

struct uart_config cfg;
cfg.baudrate = SAS_BAUD_RATE;
//cfg.parity = UART_CFG_PARITY_EVEN;
cfg.parity = UART_CFG_PARITY_ODD;
cfg.stop_bits = SAS_STOP_BITS;
cfg.data_bits = SAS_DATA_BITS;
cfg.flow_ctrl = SAS_FLOW_CTRL;

uart_data.parity = cfg.parity;  

ctrl_uart = device_get_binding(DT_LABEL(DT_NODELABEL(uart1)));
err = uart_configure(ctrl_uart, &cfg);
if (err != 0)
{
    printk("cfg.parity : %u\n", cfg.parity );
    printk("ctrl_uart setup failed: %d\n", err);
}

RE: uart_configure() error -134 using UART_CFG_PARITY

Øivind — Tue, 19 Apr 2022 09:38:48 GMT

Hi,

nrfx UART supports even and odd parity, not mark or space.