Hello,
I used a relax kit to control a System Basis Chip (SBC) and EEPROM with SPI communication.
I changed the SPI configuration(frame length, LSB/MSB first etc.) before sending any SPI signals to the slaves.
Now I moved to XMC4500 F144K1024. I updated the software and did some interface changes to the software.
With the present implementation the chip select for EEPROM is always high. i.e, EEPROM slave is not being selected.
Please let me know if I am changing the configuration in the correct manner.
I used a relax kit to control a System Basis Chip (SBC) and EEPROM with SPI communication.
I changed the SPI configuration(frame length, LSB/MSB first etc.) before sending any SPI signals to the slaves.
Code:
void ACTIVATE_SBC(){
if(SPI_MASTER_BCM.channel->PCR_SSCMode != XMC_SPI_CH_SLAVE_SELECT_0){
XMC_SPI_CH_DisableSlaveSelect(XMC_SPI1_CH1); /**< Select SBC Slave*/
XMC_SPI_CH_EnableSlaveSelect(XMC_SPI1_CH1, XMC_SPI_CH_SLAVE_SELECT_0);
XMC_SPI_CH_SetFrameLength(XMC_SPI1_CH1,SBC_FRAME);
XMC_SPI_CH_SetBitOrderLsbFirst(XMC_SPI1_CH1);
/* Configure the clock polarity and clock delay */
XMC_SPI_CH_ConfigureShiftClockOutput(XMC_SPI1_CH1,
XMC_SPI_CH_BRG_SHIFT_CLOCK_PASSIVE_LEVEL_0_DELAY_DISABLED,
XMC_SPI_CH_BRG_SHIFT_CLOCK_OUTPUT_SCLK);
}
}Code:
void ACTIVATE_EEPROM(){
if(SPI_MASTER_BCM.channel->PCR_SSCMode != XMC_SPI_CH_SLAVE_SELECT_1){
XMC_SPI_CH_DisableSlaveSelect(XMC_SPI1_CH1); /**< Select SBC Slave*/
XMC_SPI_CH_EnableSlaveSelect(XMC_SPI1_CH1, XMC_SPI_CH_SLAVE_SELECT_1);
XMC_SPI_CH_SetFrameLength(XMC_SPI1_CH1,EEPROM_FRAME);
XMC_SPI_CH_SetBitOrderMsbFirst(XMC_SPI1_CH1);
/* Configure the clock polarity and clock delay */
XMC_SPI_CH_ConfigureShiftClockOutput(XMC_SPI1_CH1,
XMC_SPI_CH_BRG_SHIFT_CLOCK_PASSIVE_LEVEL_0_DELAY_ENABLED,
XMC_SPI_CH_BRG_SHIFT_CLOCK_OUTPUT_SCLK);
}
}Code:
void ACTIVATE_SBC(){
if(SPI_MASTER_BCM.channel->PCR_SSCMode != XMC_SPI_CH_SLAVE_SELECT_0){
SPI_MASTER_DisableSlaveSelectSignal(&SPI_MASTER_BCM); /**< Select SBC Slave*/
SPI_MASTER_EnableSlaveSelectSignal(&SPI_MASTER_BCM, SPI_MASTER_BCM.config->slave_select_pin_config[0]->slave_select_ch);
XMC_SPI_CH_SetFrameLength(XMC_SPI2_CH0,SBC_FRAME);
XMC_SPI_CH_SetBitOrderLsbFirst(XMC_SPI2_CH0);
/* Configure the clock polarity and clock delay */
XMC_SPI_CH_ConfigureShiftClockOutput(XMC_SPI2_CH0,
XMC_SPI_CH_BRG_SHIFT_CLOCK_PASSIVE_LEVEL_0_DELAY_DISABLED,
XMC_SPI_CH_BRG_SHIFT_CLOCK_OUTPUT_SCLK);
}
}Code:
void ACTIVATE_EEPROM(){
if(SPI_MASTER_BCM.channel->PCR_SSCMode != XMC_SPI_CH_SLAVE_SELECT_1){
SPI_MASTER_DisableSlaveSelectSignal(&SPI_MASTER_BCM); /**< Select SBC Slave*/
SPI_MASTER_EnableSlaveSelectSignal(&SPI_MASTER_BCM, SPI_MASTER_BCM.config->slave_select_pin_config[1]->slave_select_ch);
XMC_SPI_CH_SetFrameLength(XMC_SPI2_CH0,EEPROM_FRAME);
XMC_SPI_CH_SetBitOrderMsbFirst(XMC_SPI2_CH0);
/* Configure the clock polarity and clock delay */
XMC_SPI_CH_ConfigureShiftClockOutput(XMC_SPI2_CH0,
XMC_SPI_CH_BRG_SHIFT_CLOCK_PASSIVE_LEVEL_0_DELAY_ENABLED,
XMC_SPI_CH_BRG_SHIFT_CLOCK_OUTPUT_SCLK);
}
}Please let me know if I am changing the configuration in the correct manner.