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修改了Web后台的部分界面,增加了HAmqtt中的总电量传感器,后台新增mqtt上报频率设置
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177
mico-os/platform/MCU/LPC5410x/peripherals/Libraries/spis_5410x.c
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177
mico-os/platform/MCU/LPC5410x/peripherals/Libraries/spis_5410x.c
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/*
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* @brief LPC5410X SPI master driver
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2015
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licenser disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#include "chip.h"
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/*****************************************************************************
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* Private types/enumerations/variables
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****************************************************************************/
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/* Flag used to tell polling function (if used) that a deassert event
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happened */
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static volatile bool deasserted;
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/*****************************************************************************
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* Public types/enumerations/variables
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****************************************************************************/
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/*****************************************************************************
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* Private functions
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****************************************************************************/
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/* Determine SSEL associated with the current data value */
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static uint8_t Chip_SPIS_FindSSEL(LPC_SPI_T *pSPI, uint32_t data)
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{
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int i;
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uint8_t ssel = 0;
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for (i = 0; i <= 3; i++) {
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if ((data & SPI_RXDAT_RXSSELNUM_INACTIVE(i)) == 0) {
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/* Signal is active on low */
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ssel = (uint8_t) i;
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}
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}
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return ssel;
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}
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/*****************************************************************************
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* Public functions
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****************************************************************************/
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/* SPI slave transfer state change handler */
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uint32_t Chip_SPIS_XferHandler(LPC_SPI_T *pSPI, SPIS_XFER_T *xfer)
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{
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uint32_t staterr, data;
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uint8_t flen;
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/* Get length of a receive value */
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flen = (pSPI->TXCTRL >> 24) & 0xF;
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/* Get errors for later, we'll continue even if errors occur, but we notify
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caller on return */
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staterr = Chip_SPI_GetStatus(pSPI) & (SPI_STAT_RXOV | SPI_STAT_TXUR);
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if (staterr != 0) {
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Chip_SPI_ClearStatus(pSPI, staterr);
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}
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/* Slave assertion */
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if ((Chip_SPI_GetStatus(pSPI) & SPI_STAT_SSA) != 0) {
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Chip_SPI_ClearStatus(pSPI, SPI_STAT_SSA);
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/* Determine SPI select. Read the data FIFO to get the slave number. Data
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should not be in the receive FIFO yet, only the statuses */
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xfer->sselNum = Chip_SPIS_FindSSEL(pSPI, Chip_SPI_ReadRawRXFifo(pSPI));
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/* SSEL assertion callback */
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xfer->pCB->slaveXferCSAssert(xfer);
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}
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/* Transmit data? */
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while ((Chip_SPI_GetStatus(pSPI) & SPI_STAT_TXRDY) != 0) {
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if (xfer->txCount == 0) {
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/* Request a new buffer first */
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xfer->pCB->slaveXferSend(xfer);
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}
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/* Send 0 on empty buffer or count */
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if ((xfer->txCount == 0) || (xfer->pTXData8 == NULL)) {
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data = 0;
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}
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else {
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/* Copy buffer to data */
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if (flen > 8) {
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data = (uint32_t) *xfer->pTXData16;
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xfer->pTXData16++;
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}
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else {
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data = (uint32_t) *xfer->pTXData8;
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xfer->pTXData8++;
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}
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xfer->dataTXferred++;
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xfer->txCount--;
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}
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Chip_SPI_WriteTXData(pSPI, data);
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}
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/* Data received? */
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while ((Chip_SPI_GetStatus(pSPI) & SPI_STAT_RXRDY) != 0) {
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/* Get raw data and status */
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data = Chip_SPI_ReadRawRXFifo(pSPI);
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/* Only copy data when not ignoring receive */
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if (xfer->pRXData8 != NULL) {
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/* Enough size in current buffers? */
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if (xfer->rxCount == 0) {
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/* Request a new buffer first */
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xfer->pCB->slaveXferRecv(xfer);
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}
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/* Copy data to buffer */
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if (flen > 8) {
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*xfer->pRXData16 = (uint16_t) (data & 0xFFFF);
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xfer->pRXData16++;
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}
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else {
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*xfer->pRXData8 = (uint8_t) (data & 0xFF);
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xfer->pRXData8++;
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}
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xfer->dataRXferred++;
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xfer->rxCount--;
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}
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}
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/* Slave de-assertion */
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if (((Chip_SPI_GetStatus(pSPI) & SPI_STAT_SSD) != 0) && ((Chip_SPI_GetStatus(pSPI) & SPI_STAT_RXRDY) == 0)) {
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Chip_SPI_ClearStatus(pSPI, SPI_STAT_SSD);
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xfer->pCB->slaveXferCSDeAssert(xfer);
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deasserted = true;
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}
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return staterr;
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}
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/* SPI slave transfer blocking function */
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uint32_t Chip_SPIS_XferBlocking(LPC_SPI_T *pSPI, SPIS_XFER_T *xfer)
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{
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uint32_t status = 0;
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/* Wait forever until deassertion event */
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deasserted = false;
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while ((!deasserted) && (status == 0)) {
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status = Chip_SPIS_XferHandler(pSPI, xfer);
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}
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return status;
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}
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