{"id":9148,"date":"2019-02-09T15:10:27","date_gmt":"2019-02-09T15:10:27","guid":{"rendered":"http:\/\/blog.bachi.net\/?p=9148"},"modified":"2019-02-09T19:16:05","modified_gmt":"2019-02-09T19:16:05","slug":"nrf5-sdk-uart","status":"publish","type":"post","link":"https:\/\/blog.bachi.net\/?p=9148","title":{"rendered":"nRF5 SDK: UART"},"content":{"rendered":"

Understand UART, UARTE and getting it to work with PPI<\/a><\/p>\n

UART \u2014 Universal asynchronous receiver\/transmitter<\/a>
\nUARTE \u2014 Universal asynchronous receiver\/transmitter with EasyDMA<\/a>
\nPeripheral drivers – UART<\/a>
\nPeripheral drivers – UARTE<\/a>
\nUART Driver<\/a>
\nUART module<\/a>
\nSerial port library<\/a><\/p>\n

\r\nnrfx_err_t nrfx_uart_init(nrfx_uart_t const *        p_instance,\r\n                          nrfx_uart_config_t const * p_config,\r\n                          nrfx_uart_event_handler_t  event_handler)\r\n{\r\n    [...]\r\n    apply_config(p_instance, p_config);\r\n    [...]\r\n}\r\n\r\nstatic void apply_config(nrfx_uart_t        const * p_instance,\r\n                         nrfx_uart_config_t const * p_config)\r\n{\r\n    [...]\r\n    \/* TXD *\/\r\n    nrf_gpio_pin_set(p_config->pseltxd);\r\n    nrf_gpio_cfg_output(p_config->pseltxd);\r\n    \r\n    \/* RXD *\/\r\n    nrf_gpio_cfg_input(p_config->pselrxd, NRF_GPIO_PIN_NOPULL);\r\n\r\n    nrf_uart_baudrate_set(p_instance->p_reg, p_config->baudrate);\r\n    nrf_uart_configure(p_instance->p_reg, p_config->parity, p_config->hwfc);\r\n    nrf_uart_txrx_pins_set(p_instance->p_reg, p_config->pseltxd, p_config->pselrxd);\r\n    [...]\r\n}\r\n<\/pre>\n
\r\nvoid nrf_uart_txrx_pins_set(\r\n    NRF_UART_Type  *p_reg,\r\n    uint32_t        pseltxd,\r\n    uint32_t        pselrxd\r\n) {\r\n    p_reg->PSELRXD = pselrxd;\r\n    p_reg->PSELTXD = pseltxd;\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
Understand UART, UARTE and getting it to work with PPI UART \u2014 Universal asynchronous receiver\/transmitter UARTE \u2014 Universal asynchronous receiver\/transmitter with EasyDMA Peripheral drivers – UART Peripheral drivers – UARTE UART Driver UART module Serial port library nrfx_err_t nrfx_uart_init(nrfx_uart_t const * p_instance, nrfx_uart_config_t const * p_config, nrfx_uart_event_handler_t event_handler) { […] apply_config(p_instance, p_config); […] } static […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9148","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/9148","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9148"}],"version-history":[{"count":7,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/9148\/revisions"}],"predecessor-version":[{"id":9160,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/9148\/revisions\/9160"}],"wp:attachment":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}