0입력시 hello, 1입력시 world 출력 도와주실분 계신가요

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이게 예제코드인데 이거활용해서 하려고하는데 안나오네요...프로그램은 keil uVison5 사용중이고 칩은 mpas-ks22입니다.구글링 아무리해봐도 안나와서 4일째 해메고있네요 ㅠㅠlpuart방식이고 interrupt사용해서 해야됩니다./* * The Clear BSD License * Copyright (c) 2015, Freescale Semiconductor, Inc. * Copyright 2016-2017 NXP * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted (subject to the limitations in the disclaimer below) provided * that the following conditions are met: * * o Redistributions of source code must retain the above copyright notice, this list * of conditions and the following disclaimer. * * o Redistributions in binary form must reproduce the above copyright notice, this * list of conditions and the following disclaimer in the documentation and/or * other materials provided with the distribution. * * o Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &#34;AS IS&#34; AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */#include &#34;board.h&#34; #include &#34;fsl_lpuart.h&#34; #include &#34;fsl_device_registers.h&#34; #include &#34;pin_mux.h&#34; #include &#34;clock_config.h&#34; /******************************************************************************* * Definitions ******************************************************************************/ / UART instance and clock / #define DEMO_LPUART LPUART0 #define DEMO_LPUART_CLKSRC kCLOCK_PllFllSelClk #define DEMO_LPUART_CLK_FREQ CLOCK_GetFreq(kCLOCK_PllFllSelClk) #define DEMO_LPUART_IRQn LPUART0_IRQn #define DEMO_LPUART_IRQHandler LPUART0_IRQHandler /! &#64;brief Ring buffer size (Unit: Byte). / #define DEMO_RING_BUFFER_SIZE 16/! &#64;brief Ring buffer to save received data. //******************************************************************************* * Prototypes ******************************************************************************//******************************************************************************* * Variables ******************************************************************************/uint8_t g_tipString[] &#61; &#34;Lpuart functional API interrupt example
Board receives characters then sends them out
Now please input:
&#34;;/* Ring buffer for data input and output, in this example, input data are saved to ring buffer in IRQ handler. The main function polls the ring buffer status, if there are new data, then send them out. Ring buffer full: (((rxIndex &#43; 1) % DEMO_RING_BUFFER_SIZE) &#61;&#61; txIndex) Ring buffer empty: (rxIndex &#61;&#61; txIndex) */ uint8_t demoRingBuffer[DEMO_RING_BUFFER_SIZE]; volatile uint16_t txIndex; / Index of the data to send out. / volatile uint16_t rxIndex; / Index of the memory to save new arrived data. //******************************************************************************* * Code ******************************************************************************/void DEMO_LPUART_IRQHandler(void) { uint8_t data;/ If new data arrived. / if ((kLPUART_RxDataRegFullFlag)&LPUART_GetStatusFlags(DEMO_LPUART)) { data &#61; LPUART_ReadByte(DEMO_LPUART);/ If ring buffer is not full, add data to ring buffer. / if (((rxIndex &#43; 1) % DEMO_RING_BUFFER_SIZE) !&#61; txIndex) { demoRingBuffer[rxIndex] &#61; data; rxIndex&#43;&#43;; rxIndex %&#61; DEMO_RING_BUFFER_SIZE; } } /* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping exception return operation might vector to incorrect interrupt */ #if defined __CORTEX_M && (__CORTEX_M &#61;&#61; 4U) __DSB(); #endif }/*! * &#64;brief Main function */ int main(void) { lpuart_config_t config;BOARD_InitPins(); BOARD_BootClockHSRUN();CLOCK_SetLpuart0Clock(0x1U); / PLLFLLSEL is used as LPUART //* * config.baudRate_Bps &#61; 115200U; * config.parityMode &#61; kLPUART_ParityDisabled; * config.stopBitCount &#61; kLPUART_OneStopBit; * config.txFifoWatermark &#61; 0; * config.rxFifoWatermark &#61; 0; * config.enableTx &#61; false; * config.enableRx &#61; false; */ LPUART_GetDefaultConfig(&config); config.baudRate_Bps &#61; BOARD_DEBUG_UART_BAUDRATE; config.enableTx &#61; true; config.enableRx &#61; true;LPUART_Init(DEMO_LPUART, &config, DEMO_LPUART_CLK_FREQ);/ Send g_tipString out. / LPUART_WriteBlocking(DEMO_LPUART, g_tipString, sizeof(g_tipString) / sizeof(g_tipString[0]));/ Enable RX interrupt. / LPUART_EnableInterrupts(DEMO_LPUART, kLPUART_RxDataRegFullInterruptEnable); EnableIRQ(DEMO_LPUART_IRQn);while (1) { / Send data only when LPUART TX register is empty and ring buffer has data to send out. / while ((kLPUART_TxDataRegEmptyFlag & LPUART_GetStatusFlags(DEMO_LPUART)) && (rxIndex !&#61; txIndex)) { LPUART_WriteByte(DEMO_LPUART, demoRingBuffer[txIndex]); txIndex&#43;&#43;; txIndex %&#61; DEMO_RING_BUFFER_SIZE; } } }

adduci · Answer

화이팅

ColoColo · Answer

reset 후에 &#34;Lpuart functional API interrupt example&#34; 이런 문구를 출력하고 시작하는거 같은데 그게 안보이면 하드웨어 문제일수도 있겠네요.

0입력시 hello, 1입력시 world 출력 도와주실분 계신가요

2개의 답변

#mcu 목록