hi , i wrote the following code that sends an adrdess through i2c and some data through dspi , the data of dspi is sent successfully but for i2c its not sent all this is my code:
/*
* Copyright (c) 2013 - 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 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 Freescale Semiconductor, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 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.
*/
/* ###################################################################
** Filename : main.c
** Project : dspi_master_mpc5748g
** Processor : MPC5748G_324
** Version : Driver 01.00
** Compiler : GNU C Compiler
** Date/Time : 2017-03-14, 14:08, # CodeGen: 1
** Abstract :
** Main module.
** This module contains user's application code.
** Settings :
** Contents :
** No public methods
**
** ###################################################################*/
/*!
** @file main.c
** @version 01.00
** @brief
** Main module.
** This module contains user's application code.
*/
/*!
** @addtogroup main_module main module documentation
** @{
*/
/* MODULE main */
/* Including needed modules to compile this module/procedure */
#include "Cpu.h"
#include "dspi1.h"
#include "clockMan1.h"
#include "pin_mux.h"
#include "dspi2.h"
#include "dmaController1.h"
volatile int exit_code = 0;
/* User includes (#include below this line is not maintained by Processor Expert) */
#include <stdint.h>
#include <stdbool.h>
#include "i2c1.h"
#define TIMEOUT 1000U
#define NUMBER_OF_FRAMES 10U
#define BUFFER_SIZE 10U
#define TRANSFER_SIZE 7
i2c_master_state_t i2c1MasterState;
/*!
\brief The main function for the project.
\details The startup initialization sequence is the following:
* - startup asm routine
* - main()
*/
int main(void)
{
/* Write your local variable definition here */
int master_send[BUFFER_SIZE] = {1, 2, 0, 4, 5, 6, 7, 8, 9, 10};
uint8_t master_receive[BUFFER_SIZE];
int i;
int j;
uint8_t masterTxBuffer[TRANSFER_SIZE] = {0x1,0,0,0x1,0x1,1,1};
/*** Processor Expert internal initialization. DON'T REMOVE THIS CODE!!! ***/
#ifdef PEX_RTOS_INIT
PEX_RTOS_INIT(); /* Initialization of the selected RTOS. Macro is defined by the RTOS component. */
#endif
/*** End of Processor Expert internal initialization. ***/
CLOCK_SYS_Init(g_clockManConfigsArr, CLOCK_MANAGER_CONFIG_CNT, g_clockManCallbacksArr, CLOCK_MANAGER_CALLBACK_CNT);
CLOCK_SYS_UpdateConfiguration(0U, CLOCK_MANAGER_POLICY_AGREEMENT);
PINS_DRV_Init(NUM_OF_CONFIGURED_PINS, g_pin_mux_InitConfigArr);
/* SPI master configuration: clock speed: 500 kHz, 8 bits/frame, MSB first */
DSPI_MasterInit(DSPI0_INSTANCE, &dspi1State, &dspi1_MasterInitConfig0);
/* SPI slave configuration: clock speed: 500 kHz, 8 bits/frame, MSB first */
DSPI_SlaveInit(SPI0_INSTANCE, &dspi2State, &dspi2_SlaveInitConfig0);
/* Configure delay between transfer, delay between SCK and PCS and delay between PCS and SCK */
DSPI_MasterSetDelay(DSPI0_INSTANCE, 1, 1, 1);
I2C_DRV_MasterInit(INST_I2C1, &i2c1_MasterConfig0, &i2c1MasterState);
// send i2c address data
// send dspi sound data
for(i=0;i<BUFFER_SIZE;i++)
{
/* Start the blocking transfer */
DSPI_MasterTransferBlocking(DSPI0_INSTANCE, &master_send[i], master_receive, NUMBER_OF_FRAMES, TIMEOUT);
}
for (i = 0; i < TRANSFER_SIZE; i++)
{
/* Send a packet of data to the bus slave */
(void) I2C_DRV_MasterSendDataBlocking(INST_I2C1, &masterTxBuffer[i], TRANSFER_SIZE, true, OSIF_WAIT_FOREVER);
}
/*** Don't write any code pass this line, or it will be deleted during code generation. ***/
/*** RTOS startup code. Macro PEX_RTOS_START is defined by the RTOS component. DON'T MODIFY THIS CODE!!! ***/
#ifdef PEX_RTOS_START
PEX_RTOS_START(); /* Startup of the selected RTOS. Macro is defined by the RTOS component. */
#endif
/*** End of RTOS startup code. ***/
/*** Processor Expert end of main routine. DON'T MODIFY THIS CODE!!! ***/
for(;;) {
if(exit_code != 0) {
break;
}
}
return exit_code;
/*** Processor Expert end of main routine. DON'T WRITE CODE BELOW!!! ***/
} /*** End of main routine. DO NOT MODIFY THIS TEXT!!! ***/
/* END main */
/*!
** @}
*/
/*
** ###################################################################
**
** This file was created by Processor Expert 10.1 [05.21]
** for the NXP C55 series of microcontrollers.
**
** ###################################################################
*/
this is what i get on logic analyzer.
the first 3 channels are for dspi which are sent fully, the last 2 channels are for i2c which is not sent fully, i also get this dissassembly:
can you please help me by telling me how to send the second array for i2c?
yes i do have a slave connected, where can i define the address? can you show me the way to do so?
this is what its showing:
its sending it to address 0100111 , i want to send to address 1110000
ok i was able to change the address but it still shows me +NAK and no data is sent, how can i make it +ACK and send my data?
