This is code for TSSOP this code is for XMC1300 driver card. TSSOP381. What is the cause of getting the issue ?2. What is correct code for recieving ...
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This is code for TSSOP this code is for XMC1300 driver card. TSSOP38
1. What is the cause of getting the issue ?
2. What is correct code for recieving the data byte ?
/*This is code to read the values from pressure sensor(BMP280)
The SDA and SCL pins are pull up using 4.7k ohms
channel = channel 0
*/
/*********************************************************************************************************************
* HEADER FILES
********************************************************************************************************************/
#include <XMC1300.h>
#include <xmc_i2c.h>
#include <xmc_gpio.h>
#include <string.h>
#include <stdint.h>
#include <xmc_scu.h>
#include "xmc_common.h"
/*********************************************************************************************************************
* MACROS
*********************************************************************************************************************/
#define I2C_CH_NUM XMC_I2C0_CH0
#define SDA_PIN P2_1
#define SCL_PIN P2_0
#define LED1 P0_4
#define SLAVE_ID (0xEC)
#define RegisterAddress 0xD0
/*********************************************************************************************************************
* DATA STRUCTURES
*********************************************************************************************************************/
/* IIC configuration */
XMC_I2C_CH_CONFIG_t i2c_cfg =
{
.baudrate = 400000U,
.address = EEPROM_I2C_ADR
};
/* IIC SDA and SCL Pins */
XMC_GPIO_CONFIG_t i2c_sda =
{
.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT6,
.output_level= XMC_GPIO_OUTPUT_LEVEL_HIGH,
};
XMC_GPIO_CONFIG_t i2c_scl =
{
.mode = XMC_GPIO_MODE_OUTPUT_OPEN_DRAIN_ALT7,
.output_level= XMC_GPIO_OUTPUT_LEVEL_HIGH,
};
/* GPIO LED pin configuration */
XMC_GPIO_CONFIG_t LED_pin_config =
{
.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL,
};
XMC_USIC_CH_t *i2c = I2C_CH_NUM;
XMC_SCU_CLOCK_CONFIG_t clock_config;
/*********************************************************************************************************************
* GLOBAL VARIABLES
*********************************************************************************************************************/
uint8_t ReceivedData[3];
/*********************************************************************************************************************
* APPLICATION CODE
*********************************************************************************************************************/
uint8_t RecieveByte(void)
{
uint16_t Data[3];
/* Read received data */
for (volatile uint8_t gu8Index = 0; gu8Index <3; gu8Index++){
Data[gu8Index] = XMC_USIC_CH_RXFIFO_GetData(I2C_CH_NUM);
}
return 0;
}
void Init_I2C(void) {
/* Configure Clock */
clock_config.pclk_src=XMC_SCU_CLOCK_PCLKSRC_MCLK; /*PCLK = MCLK*/
clock_config.rtc_src=XMC_SCU_CLOCK_RTCCLKSRC_DCO2;
clock_config.fdiv = 0; /**< Fractional divider */
clock_config.idiv = 1; /**MCLK = 32MHz */
XMC_SCU_CLOCK_Init(&clock_config);
for (volatile uint8_t gu8Index = 0; gu8Index < 10; gu8Index++);
/* Configure LED1 */
XMC_GPIO_Init(XMC_GPIO_PORT0, 4, &LED_pin_config);
XMC_I2C_CH_Init(I2C_CH_NUM, &i2c_cfg);
XMC_I2C_CH_Start(i2c);
/* I2C initialization sequence*/
XMC_I2C_CH_SetInputSource(i2c, XMC_I2C_CH_INPUT_SDA, 5); //DX0 -> DOUT0 USIC0_C0_DX0_P1_5 P1_5_AF_U0C0_DOUT0
XMC_I2C_CH_SetInputSource(i2c, XMC_I2C_CH_INPUT_SCL, 4); //DX1 -> SCLKOUT USIC0_C1_DX1_P1_4 P1_4_AF_U0C1_SCLKOUT
// 8 entries for TxFIFO from point 0, LIMIT=1
XMC_USIC_CH_TXFIFO_Configure(I2C_CH_NUM, 0,XMC_USIC_CH_FIFO_SIZE_8WORDS, 1);
// 8 entries for RxFIFO from point 16, LIMIT=7 (SRBI is set if all 8*data has been received)
XMC_USIC_CH_RXFIFO_Configure(I2C_CH_NUM, 8,XMC_USIC_CH_FIFO_SIZE_8WORDS, 7);
/* I2C port pin configuration*/
XMC_GPIO_Init(SDA_PIN, &i2c_sda);
XMC_GPIO_Init(SCL_PIN, &i2c_scl);
}
int main(void) {
uint8_t ReceivedData1[4];
Init_I2C();
/* Send START conditon */
XMC_I2C_CH_MasterStart(I2C_CH_NUM,SLAVE_ID, XMC_I2C_CH_CMD_WRITE);
/* Wait for acknowledge and reset status */
while((XMC_I2C_CH_GetStatusFlag(I2C_CH_NUM) & XMC_I2C_CH_STATUS_FLAG_ACK_RECEIVED) == 0U)
{
/* wait for ACK from slave */
}
XMC_I2C_CH_ClearStatusFlag(I2C_CH_NUM,(uint32_t)XMC_I2C_CH_STATUS_FLAG_ACK_RECEIVED);
/* Transmit next command from I2C master to I2C slave */
XMC_I2C_CH_MasterTransmit(I2C_CH_NUM, RegisterAddress);
/* Wait for acknowledge and reset status */
while((XMC_I2C_CH_GetStatusFlag(I2C_CH_NUM) & XMC_I2C_CH_STATUS_FLAG_ACK_RECEIVED) == 0U)
{
/* wait for ACK from slave */
}
XMC_I2C_CH_ClearStatusFlag(I2C_CH_NUM,(uint32_t)XMC_I2C_CH_STATUS_FLAG_ACK_RECEIVED);
/* Wait until TX FIFO is empty */
while (!XMC_USIC_CH_TXFIFO_IsEmpty(I2C_CH_NUM))
{
/* wait until all data is sent by HW */
}
/* Transmit next command from I2C master to I2C slave */
/* Send STOP conditon */
XMC_I2C_CH_MasterStop(I2C_CH_NUM);
for (volatile uint8_t gu8Index = 0; gu8Index < 5444; gu8Index++);
XMC_I2C_CH_MasterStart(I2C_CH_NUM,SLAVE_ID, XMC_I2C_CH_CMD_READ);
/* Wait for acknowledge and reset status */
while((XMC_I2C_CH_GetStatusFlag(I2C_CH_NUM) & XMC_I2C_CH_STATUS_FLAG_ACK_RECEIVED) == 0U)
{
/* wait for ACK from slave */
}
XMC_I2C_CH_ClearStatusFlag(I2C_CH_NUM,(uint32_t)XMC_I2C_CH_STATUS_FLAG_ACK_RECEIVED);
for(volatile uint8_t gu8Index=0;gu8Index <3;gu8Index++ ){
ReceivedData1[gu8Index] =RecieveByte();
}
while (1U){
}
}
Below are obtained output images
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Solved
Sep 14, 2023
