Posted on December 10, 2015 at 06:49hello baird.hal,
i'm forwarding code,
float Read_IC1_REF0(void)
{
volatile float tot_adc_val = 0.0;
volatile unsigned short int fl_k = 0;
volatile unsigned short int fl_index = 0;
volatile unsigned char SPI1_Rx_buffer[3]={0};
volatile unsigned int ADC_Converted_Data = 0;
/****** Configuration for MUX1 Register ******/
IC1_VREFCON_Int_ON // Internal Reference is always ON
IC1_REFSELT_Onboard_Ref // Onboard Reference selected
IC1_MUXCAL_Ext_Ref0 // External REF0 is selected as system monitor
sar_Write_2_Register(IC1_MUX1_Address,IC1_MUX1_Data);
/****** Delay ******/
Delay_Flag_16ms = 0;
while(Delay_Flag_16ms == 0); // 16 ms Delay
MB1_process();
/****** Read Data Once ******/
_2_sec_Delay_Flag = 0;
do
{
while(!(GPIOC->IDR & 0x0001))
{
_2_sec_Delay_Flag = 1;
delay_2s_count = 0;
}
} while(_2_sec_Delay_Flag == 0);
// while(GPIOC->IDR & 0x0001); // -->IC1 Wait till Data Conversion Cpmplete (i.e DRDY != 1). If it goes to Zero, indicates Data Conversion is Complete
while((GPIOC->IDR & 0x0001)==0);
while(SPI2_BUSY_FLAG); // Wait for Busy flag reset to send next data byte
SPI2->DR =0x12; // Read Once Cmd is 12 or 13.
while(SPI2_BUSY_FLAG); // Wait for Busy flag reset to send next data byte
SPI2_Rx_dummy_buffer = SPI2->DR; // receive 1st byte which is a dummy data
/* here communication delay occurring and receiving dummy byte */
_2_sec_Delay_Flag = 0;
do
{
while(!(GPIOC->IDR & 0x0001))
{
_2_sec_Delay_Flag = 1;
delay_2s_count = 0;
}
} while(_2_sec_Delay_Flag == 0);
// while(GPIOC->IDR & 0x0001);
while((GPIOC->IDR & 0x0001)==0);
while(SPI2_BUSY_FLAG); // Wait for Busy flag reset to send next data byte
SPI2->DR =0x12; // Read Once Cmd is 12 or 13.
while(SPI2_BUSY_FLAG); // Wait for Busy flag reset to send next data byte
SPI2_Rx_dummy_buffer = SPI2->DR; // receive 1st byte which is a dummy data
/* here communication delay occurring and second time receiving dummy byte,this major thing and delay has more */
for(fl_k=0;fl_k<3;fl_k++)
{
while(SPI2_BUSY_FLAG); // Wait for Busy flag reset to send next data byte
SPI2->DR =0xff; // NOP Cmd
while(SPI2_BUSY_FLAG); // Wait for Busy flag reset to send next data byte
SPI1_Rx_buffer[fl_index++]=SPI2->DR;
}
