Analog Devices
Example program for EVAL-CN0535-FMCZ
Dependencies: platform_drivers AD77681
main.cpp
- Committer:
- jngarlitos
- Date:
- 2021-03-15
- Revision:
- 1:f3b5e79a8488
- Parent:
- 0:ae894be1131f
- Child:
- 2:998f1de78dae
File content as of revision 1:f3b5e79a8488:
#include "mbed.h"
#include "main.h"
#include "app_config.h"
#include "cn0535_init_params.h"
#define CRC_DEBUG
// Descriptor of the main device - the ADC AD7768-1
ad77681_dev *device;
// Descriptor of the ADC AD7768-1 Status
ad77681_status_registers *current_status;
// Structure carying measured data, sampled by the ADC
adc_data measured_data;
// Initialize the serial object with TX and RX pins
Serial pc(USBTX, USBRX);
// Initialize the drdy pin as interrupt input
InterruptIn drdy(DRDY_PIN, PullNone);
// Initialize the adc_rst_pin pin as digital output
DigitalOut adc_rst(ADC_RST_PIN);
// Initialize the interrupt event variable
volatile bool int_event= false;
/*
* ADC data recteption interrupt from DRDY
*
* Data reception from the ADC using interrupt generated by the ADC's DRDY (Data Ready) pin
* Interrupt triggers falling edge of the active-high DRDY pulse
* DRDY pulse is generated by the ADC and frequency of the DRDY pulse depends on the ADC settings:
*
* DRDY frequency = MCLK / ( MCLK_DIV * FILTER_OSR )
*
*/
void drdy_interrupt()
{
int_event = true;
if (measured_data.count == measured_data.samples) { // Desired numer of samples has been taken, set everything back
drdy.disable_irq(); // Disable interrupt on DRDY pin
measured_data.finish = true; // Desired number of samples has been taken
measured_data.count = 0; // Set measured data counter to 0
}
}
int main()
{
int32_t connected = FAILURE;
uint32_t menu;
adc_hard_reset(); // Perform hard reset thru GPIO
connected = ad77681_setup(&device, init_params, ¤t_status); // SETUP and check connection
if(connected == FAILURE)
go_to_error();
adc_gpio_init(); // Initilized SDP-K1 GPIOS
print_title();
print_prompt();
//============ MAIN WHILE ====================
while(1) {
if (pc.readable()) { // Settings menu SWITCH
getUserInput(&menu);
switch (menu) {
case 1:
menu_1_set_pgia_gain_mode(); // Set PGIA gain or mode
break;
case 2:
menu_2_set_fda_powermode(); // Set FDA power mode
break;
case 3:
menu_3_set_ad77681_powermode(); // Set FDA power mode
break;
case 4:
menu_4_set_ad77681_clock_divider(); // Set FDA power mode
break;
case 5:
menu_5_set_ad77681_filter_type(); // Set ad7768-1 filter type
break;
case 6:
menu_6_ad77681_AIN_buffers_controll(); // Set ad7768-1 AIN buffers
break;
case 7:
menu_7_ad77681_REF_buffers_controll(); // Set ad7768-1 REF buffers
break;
case 8:
menu_8_set_ad77681_vcm_setup(); // Set ad7768-1 VCM
break;
case 9:
menu_9_set_ad77681_data_output_mode(); // Set ad7768-1 Data output mode
break;
case 10:
menu_10_set_ad77681_diagnostic_mode(); // Set ad7768-1 Diagnostic mode
break;
case 11:
menu_11_set_ad77681_gains_offsets(); // Set ad7768-1 gain and offset
break;
case 12:
menu_12_ad77681_read_master_status(); // Read ad7768-1 Master status
break;
case 13:
menu_13_ad77681_read_register(); // Read ad7768-1 registers
break;
case 14:
menu_14_read_ad77681_single_conv_data(); // Read ad7768-1 single convertion data
break;
case 15:
menu_15_read_ad77681_continuous_data(); // Read ad7768-1 continuous read data
break;
case 16:
menu_16_print_ad77681_continuos_read_data();// Print ad7768-1 continuous read data
break;
case 17:
menu_17_ad77681_check_scratchpad(); // Perform ad7768-1 scratch pad check
break;
case 18:
menu_18_reset_ad77681_ADC(); // Reset ad7768-1
break;
case 19:
menu_19_set_default_settings(); // Set Board defaul settings
break;
case 20:
menu_20_mclk_vref(); // Set ad7768-1 MCLK and Vref Values
break;
default:
pc.printf("Invalid option"); // Invalid Option
print_prompt();
break;
}
}
}
}
/**
* Error warning, in case of unsuccessfull SPI connection
*
*/
void static go_to_error()
{
int32_t connected = FAILURE;
while (1) {
pc.printf("ERROR: NOT CONNECTED\nCHECK YOUR PHYSICAL CONNECTION\n\n"); // When not connected, keep showing error message
wait(5);
connected = ad77681_setup(&device, init_params, ¤t_status); // Keep trying to connect
if (connected == SUCCESS) {
pc.printf("SUCCESSFULLY RECONNECTED\n\n"); // If successfull reading from scratchpad, init the ADC and go back
break;
}
}
}
/**
* Print title
*
*/
void static print_title()
{
pc.printf("\n\r");
pc.printf("****************************************************************\n");
pc.printf("* CN0535 Demonstration Program -- (mbed) *\n");
pc.printf("* *\n");
pc.printf("* This program demonstrates Universal Measurement Platform *\n");
pc.printf("* using the AD7768-1 Precision 24-bit sigma-delta AD converter *\n");
pc.printf("* *\n");
pc.printf("* Set the baud rate to 115200 select the newline terminator. *\n");
pc.printf("****************************************************************\n");
}
/**
* Print main menu to console
*
*/
void static print_prompt()
{
pc.printf("\n\nCommand Summary:\n\n");
pc.printf(" 1 - Set LTC6373 PGIA Gain/Mode\n");
pc.printf(" 2 - Set ADA4945 FDA Power Mode\n");
pc.printf(" 3 - Set AD7768-1 power mode\n");
pc.printf(" 4 - Set AD7768-1 MCLK clock divider\n");
pc.printf(" 5 - Set AD7768-1 filter type\n");
pc.printf(" 6 - Set AD7768-1 AIN buffers\n");
pc.printf(" 7 - Set AD7768-1 REF buffers\n");
pc.printf(" 8 - Set AD7768-1 VCM output\n");
pc.printf(" 9 - Set AD7768-1 data output mode\n");
pc.printf(" 10 - Set AD7768-1 diagnostic mode\n");
pc.printf(" 11 - Set AD7768-1 Gains and Offsets\n");
pc.printf(" 12 - Read AD7768-1 master status\n");
pc.printf(" 13 - Read AD7768-1 desired register\n");
pc.printf(" 14 - Read AD7768-1 data register\n");
pc.printf(" 15 - Read AD7768-1 continuous mode data\n");
pc.printf(" 16 - Print AD7768-1 Continuous mode measured data\n");
pc.printf(" 17 - AD7768-1 Scratchpad Check \n");
pc.printf(" 18 - Reset AD7768-1 ADC\n");
pc.printf(" 19 - Set to Board Default Config\n");
pc.printf(" 20 - Update Vref and MCLK values\n");
pc.printf("\n\r");
}
/**
* Set LTC6373 PGIA Gain or Mode
*
*/
void static menu_1_set_pgia_gain_mode(void)
{
uint32_t new_pgia_gain;
uint8_t value;
pc.printf(" Avaliable LT6373 PGIA Gains and Mode: \n");
pc.printf(" 1 - Shutdown\n");
pc.printf(" 2 - 0.25V/V\n");
pc.printf(" 3 - 0.50V/V\n");
pc.printf(" 4 - 1V/V\n");
pc.printf(" 5 - 2V/V\n");
pc.printf(" 6 - 4V/V\n");
pc.printf(" 7 - 8V/V\n");
pc.printf(" 8 - 16V/V\n");
pc.printf(" Select an option: \n");
getUserInput(&new_pgia_gain);
pc.putc('\n');
switch (new_pgia_gain) {
case 1:
ad77681_spi_read_mask(device, AD77681_REG_GPIO_WRITE, AD77681_GPIO_WRITE_3_MSK, &value);
value |= 7;
ad77681_gpio_write(device,value, AD77681_ALL_GPIOS);
pc.printf(" PGIA Shutdown selected\n");
break;
case 2:
ad77681_spi_read_mask(device, AD77681_REG_GPIO_WRITE, AD77681_GPIO_WRITE_3_MSK, &value);
value |= 6;
ad77681_gpio_write(device,value, AD77681_ALL_GPIOS);
pc.printf(" PGIA gain: 0.25V/V selected\n");
break;
case 3:
ad77681_spi_read_mask(device, AD77681_REG_GPIO_WRITE, AD77681_GPIO_WRITE_3_MSK, &value);
value |= 5;
ad77681_gpio_write(device,value, AD77681_ALL_GPIOS);
pc.printf(" PGIA gain: 0.5V/V selected\n");
break;
case 4:
ad77681_spi_read_mask(device, AD77681_REG_GPIO_WRITE, AD77681_GPIO_WRITE_3_MSK, &value);
value |= 4;
ad77681_gpio_write(device,value, AD77681_ALL_GPIOS);
pc.printf(" PGIA gain: 1V/V selected\n");
break;
case 5:
ad77681_spi_read_mask(device, AD77681_REG_GPIO_WRITE, AD77681_GPIO_WRITE_3_MSK, &value);
value |= 3;
ad77681_gpio_write(device,value, AD77681_ALL_GPIOS);
pc.printf(" PGIA gain: 2V/V selected\n");
break;
case 6:
ad77681_spi_read_mask(device, AD77681_REG_GPIO_WRITE, AD77681_GPIO_WRITE_3_MSK, &value);
value |= 2;
ad77681_gpio_write(device,value, AD77681_ALL_GPIOS);
pc.printf(" PGIA gain: 4V/V selected\n");
break;
case 7:
ad77681_spi_read_mask(device, AD77681_REG_GPIO_WRITE, AD77681_GPIO_WRITE_3_MSK, &value);
value |= 1;
ad77681_gpio_write(device,value, AD77681_ALL_GPIOS);
pc.printf(" PGIA gain: 8V/V selected\n");
break;
case 8:
ad77681_spi_read_mask(device, AD77681_REG_GPIO_WRITE, AD77681_GPIO_WRITE_3_MSK, &value);
value |= 0;
ad77681_gpio_write(device,value, AD77681_ALL_GPIOS);
pc.printf(" PGIA gain: 16V/V selected\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Set ADA4945 FDA Mode
*
*/
void static menu_2_set_fda_powermode(void)
{
uint32_t new_fda_powermode;
uint8_t value;
pc.printf(" Avaliable LT6373 PGIA Gains and Mode: \n");
pc.printf(" 1 - Full Power Mode\n");
pc.printf(" 2 - Low Power Moden");
pc.printf(" Select an option: \n");
getUserInput(&new_fda_powermode);
pc.putc('\n');
switch (new_fda_powermode) {
case 1:
value = 1;
ad77681_gpio_write(device,value, AD77681_GPIO3);
pc.printf(" FDA Full Power Mode selected\n");
break;
case 2:
value = 0;
ad77681_gpio_write(device,value, AD77681_GPIO3);
pc.printf(" FDA Low Power Mode selected\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Set AD7768-1 power mode
*
*/
void static menu_3_set_ad77681_powermode(void)
{
uint32_t new_ad77681_pwr_mode;
pc.printf(" Avaliable AD7768-1 power modes: \n");
pc.printf(" 1 - Low power mode\n");
pc.printf(" 2 - Median power mode\n");
pc.printf(" 3 - Fast power mode\n");
pc.printf(" Select an option: \n");
getUserInput(&new_ad77681_pwr_mode);
pc.putc('\n');
switch (new_ad77681_pwr_mode) {
case 1:
ad77681_set_power_mode(device, AD77681_ECO);
pc.printf(" AD7768-1 Low power mode selected\n");
break;
case 2:
ad77681_set_power_mode(device, AD77681_MEDIAN);
pc.printf(" AD7768-1 Median power mode selected\n");
break;
case 3:
ad77681_set_power_mode(device, AD77681_FAST);
pc.printf(" AD7768-1 Fast power mode selected\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Set AD7768-1 clock divider
*
*/
void static menu_4_set_ad77681_clock_divider(void)
{
uint32_t new_ad77681_mclk_div;
pc.printf(" Avaliable AD7768-1 MCLK divider options: \n");
pc.printf(" 1 - MCLK/16\n");
pc.printf(" 2 - MCLK/8\n");
pc.printf(" 3 - MCLK/4\n");
pc.printf(" 4 - MCLK/2\n");
pc.printf(" Select an option: \n");
getUserInput(&new_ad77681_mclk_div);
pc.putc('\n');
switch (new_ad77681_mclk_div) {
case 1:
ad77681_set_mclk_div(device, AD77681_MCLK_DIV_16);
pc.printf(" AD7768-1 MCLK/16 selected\n");
break;
case 2:
ad77681_set_mclk_div(device, AD77681_MCLK_DIV_8);
pc.printf(" AD7768-1 MCLK/8 selected\n");
break;
case 3:
ad77681_set_mclk_div(device, AD77681_MCLK_DIV_4);
pc.printf(" AD7768-1 MCLK/4 selected\n");
break;
case 4:
ad77681_set_mclk_div(device, AD77681_MCLK_DIV_2);
pc.printf(" AD7768-1 MCLK/2 selected\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
ad77681_update_sample_rate(device); // Update the sample rate after changing the MCLK divider
print_prompt();
}
/**
* Set filter type
*
*/
void static menu_5_set_ad77681_filter_type(void)
{
pc.printf(" Avaliable AD7768-1 Filter Type options: \n");
pc.printf(" 1 - SINC3 Fileter\n");
pc.printf(" 2 - SINC5 Filter\n");
pc.printf(" 3 - Low ripple FIR Filter\n");
pc.printf(" 4 - SINC3 50/60Hz rejection\n");
pc.printf(" 5 - User-defined FIR filter\n");
pc.printf(" Select an option: \n");
uint32_t new_filter = 0;
int32_t ret;
getUserInput(&new_filter);
pc.putc('\n');
switch (new_filter) {
case 1:
set_SINC3_filter();
break;
case 2:
set_SINC5_filter();
break;
case 3:
set_FIR_filter();
break;
case 4:
set_50HZ_rej();
break;
case 5:
set_user_defined_FIR();
break;
default:
pc.printf(" Invalid option\n");
break;
}
ad77681_update_sample_rate(device); // Update the sample rate after changing the Filter type
print_prompt();
}
/**
* Set SINC3 filter
*
*/
void static set_SINC3_filter(void)
{
uint32_t new_sinc3 = 0, new_sinc5 = 0;
int32_t ret;
pc.printf(" AD7768-1 SINC3 filter Oversampling ratios: \n");
pc.printf(" OSR is calculated as (x + 1)*32\n");
pc.printf(" x is SINC3 OSR register value\n");
pc.printf(" Please input a value from 0 to 8192 = 2^13\n :");
ret = getUserInput(&new_sinc3);
if ((new_sinc3 >= 0) && (new_sinc3 <= 8192) && (ret == SUCCESS)) {
pc.printf("%d\n", new_sinc3);
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx32, AD77681_SINC3, new_sinc3);
pc.printf(" SINC3 OSR is set to %d\n", (new_sinc3 + 1) * 32);
} else {
pc.printf("%d\n", new_sinc3);
pc.printf(" Invalid option - too large number\n");
}
}
/**
* Set SINC5 filter
*
*/
void static set_SINC5_filter(void)
{
uint32_t new_sinc5;
pc.printf(" AD7768-1 SINC5 filter Oversampling ratios: \n");
pc.printf(" 1 - Oversampled by 8\n");
pc.printf(" 2 - Oversampled by 16\n");
pc.printf(" 3 - Oversampled by 32\n");
pc.printf(" 4 - Oversampled by 64\n");
pc.printf(" 5 - Oversampled by 128\n");
pc.printf(" 6 - Oversampled by 256\n");
pc.printf(" 7 - Oversampled by 512\n");
pc.printf(" 8 - Oversampled by 1024\n");
pc.printf(" Select an option: \n");
getUserInput(&new_sinc5);
pc.putc('\n');
switch (new_sinc5) {
case 1:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx32, AD77681_SINC5_DECx8, 0);
pc.printf(" SINC5 with OSRx8 set\n");
break;
case 2:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx32, AD77681_SINC5_DECx16, 0);
pc.printf(" SINC5 with OSRx16 set\n");
break;
case 3:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx32, AD77681_SINC5, 0);
pc.printf(" SINC5 with OSRx32 set\n");
break;
case 4:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx64, AD77681_SINC5, 0);
pc.printf(" SINC5 with OSRx64 set\n");
break;
case 5:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx128, AD77681_SINC5, 0);
pc.printf(" SINC5 with OSRx128 set\n");
break;
case 6:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx256, AD77681_SINC5, 0);
pc.printf(" SINC5 with OSRx256 set\n");
break;
case 7:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx512, AD77681_SINC5, 0);
pc.printf(" SINC5 with OSRx512 set\n");
break;
case 8:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx1024, AD77681_SINC5, 0);
pc.printf(" SINC5 with OSRx1024 set\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
}
/**
* Set FIR filter
*
*/
void static set_FIR_filter(void)
{
uint32_t new_fir;
pc.printf(" AD7768-1 FIR filter Oversampling ratios: \n");
pc.printf(" 1 - Oversampled by 32\n");
pc.printf(" 2 - Oversampled by 64\n");
pc.printf(" 3 - Oversampled by 128\n");
pc.printf(" 4 - Oversampled by 256\n");
pc.printf(" 5 - Oversampled by 512\n");
pc.printf(" 6 - Oversampled by 1024\n");
pc.printf(" Select an option: \n");
getUserInput(&new_fir);
pc.putc('\n');
switch (new_fir) {
case 1:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx32, AD77681_FIR, 0);
pc.printf(" FIR with OSRx32 set\n");
break;
case 2:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx64, AD77681_FIR, 0);
pc.printf(" FIR with OSRx64 set\n");
break;
case 3:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx128, AD77681_FIR, 0);
pc.printf(" FIR with OSRx128 set\n");
break;
case 4:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx256, AD77681_FIR, 0);
pc.printf(" FIR with OSRx256 set\n");
break;
case 5:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx512, AD77681_FIR, 0);
pc.printf(" FIR with OSRx512 set\n");
break;
case 6:
ad77681_set_filter_type(device, AD77681_SINC5_FIR_DECx1024, AD77681_FIR, 0);
pc.printf(" FIR with OSRx1024 set\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
}
/**
* Set 50HZ rejection bit when SINC3 is being used
*
*/
void static set_50HZ_rej(void)
{
uint32_t new_50Hz;
pc.printf(" AD7768-1 SINC3 50/60Hz rejection: \n");
pc.printf(" 1 - 50/60Hz rejection enable \n");
pc.printf(" 2 - 50/60Hz rejection disable \n");
pc.printf(" Select an option: \n");
getUserInput(&new_50Hz);
pc.putc('\n');
switch (new_50Hz) {
case 1:
ad77681_set_50HZ_rejection(device, ENABLE);
pc.printf(" SINC3 50/60Hz rejection enabled\n");
break;
case 2:
ad77681_set_50HZ_rejection(device, DISABLE);
pc.printf(" SINC3 50/60Hz rejection disabled\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
}
/**
* Insert user-defined FIR filter coeffs
*
*/
void static set_user_defined_FIR(void)
{
const uint8_t coeff_reg_length = 56; // Maximum allowed number of coefficients in the coeff register
pc.printf(" AD7768-1 User Defined FIR filter\n");
if ((ARRAY_SIZE(programmable_FIR) <= coeff_reg_length) && (count_of_active_coeffs <= coeff_reg_length)) {
pc.printf(" Aplying user-defined FIR filter coefficients from 'cn0535_init_params.h' programmable_FIR[56] \n");
ad77681_programmable_filter(device, programmable_FIR, count_of_active_coeffs);
pc.printf(" Coeffs inserted successfully\n");
} else
pc.printf(" Incorrect count of coefficients in 'cn0535_init_params.h' programmable_FIR[56]\n");
}
/**
* AIN and REF buffers controll
*
*/
void static menu_6_ad77681_AIN_buffers_controll(void)
{
uint32_t new_AD77681_REF_buffer = 0;
pc.printf(" AD7768-1 Analog IN precharge buffers settings: \n");
pc.printf(" 1 - Turn ON both precharge buffers\n");
pc.printf(" 2 - Turn OFF both precharge buffers\n");
pc.printf(" 3 - Turn ON AIN- precharge buffer\n");
pc.printf(" 4 - Turn OFF AIN- precharge buffer\n");
pc.printf(" 5 - Turn ON AIN+ precharge buffer\n");
pc.printf(" 6 - Turn OFF AIN+ precharge buffer\n");
pc.printf(" Select an option: \n");
getUserInput(&new_AD77681_REF_buffer);
pc.putc('\n');
switch (new_AD77681_REF_buffer) {
case 1:
ad77681_set_AINn_buffer(device, AD77681_AINn_ENABLED);
ad77681_set_AINp_buffer(device, AD77681_AINp_ENABLED);
pc.printf(" AIN+ and AIN- enabled\n");
break;
case 2:
ad77681_set_AINn_buffer(device, AD77681_AINn_DISABLED);
ad77681_set_AINp_buffer(device, AD77681_AINp_DISABLED);
pc.printf(" AIN+ and AIN- disabled\n");
break;
case 3:
ad77681_set_AINn_buffer(device, AD77681_AINn_ENABLED);
pc.printf(" AIN- Enabled\n");
break;
case 4:
ad77681_set_AINn_buffer(device, AD77681_AINn_DISABLED);
pc.printf(" AIN- Disabled\n");
break;
case 5:
ad77681_set_AINp_buffer(device, AD77681_AINp_ENABLED);
pc.printf(" AIN+ Enabled\n");
break;
case 6:
ad77681_set_AINp_buffer(device, AD77681_AINp_DISABLED);
pc.printf(" AIN+ Disabled\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* AIN and REF buffers controll
*
*/
void static menu_7_ad77681_REF_buffers_controll(void)
{
uint32_t new_REF_buffer = 0;
pc.printf(" REF buffers settings: \n");
pc.printf(" 1 - Full REF- reference buffer\n");
pc.printf(" 2 - Full REF+ reference buffer\n");
pc.printf(" 3 - Unbuffered REF- reference buffer\n");
pc.printf(" 4 - Unbuffered REF+ reference buffer\n");
pc.printf(" 5 - Precharge REF- reference buffer\n");
pc.printf(" 6 - Precharge REF+ reference buffer\n");
pc.printf(" Select an option: \n");
getUserInput(&new_REF_buffer);
pc.putc('\n');
switch (new_REF_buffer) {
case 1:
ad77681_set_REFn_buffer(device, AD77681_BUFn_FULL_BUFFER_ON);
pc.printf(" Fully buffered REF-\n");
break;
case 2:
ad77681_set_REFp_buffer(device, AD77681_BUFp_FULL_BUFFER_ON);
pc.printf(" Fully buffered REF+\n");
break;
case 3:
ad77681_set_REFn_buffer(device, AD77681_BUFn_DISABLED);
pc.printf(" Unbuffered REF-\n");
break;
case 4:
ad77681_set_REFp_buffer(device, AD77681_BUFp_DISABLED);
pc.printf(" Unbuffered REF+\n");
break;
case 5:
ad77681_set_REFn_buffer(device, AD77681_BUFn_ENABLED);
pc.printf(" Precharge buffer on REF-\n");
break;
case 6:
ad77681_set_REFp_buffer(device, AD77681_BUFp_ENABLED);
pc.printf(" Precharge buffer on REF+\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* VCM output controll
*
*/
void static menu_8_set_ad77681_vcm_setup(void)
{
uint32_t new_vcm = 0;
pc.printf(" Avaliable VCM output voltage levels: \n");
pc.printf(" 1 - VCM = (AVDD1-AVSS)/2\n");
pc.printf(" 2 - VCM = 2.5V\n");
pc.printf(" 3 - VCM = 2.05V\n");
pc.printf(" 4 - VCM = 1.9V\n");
pc.printf(" 5 - VCM = 1.65V\n");
pc.printf(" 6 - VCM = 1.1V\n");
pc.printf(" 7 - VCM = 0.9V\n");
pc.printf(" 8 - VCM off\n");
pc.printf(" Select an option: \n");
getUserInput(&new_vcm);
pc.putc('\n');
switch (new_vcm) {
case 1:
ad77681_set_VCM_output(device, AD77681_VCM_HALF_VCC);
pc.printf(" VCM set to half of the Vcc\n");
break;
case 2:
ad77681_set_VCM_output(device, AD77681_VCM_2_5V);
pc.printf(" VCM set to 2.5V\n");
break;
case 3:
ad77681_set_VCM_output(device, AD77681_VCM_2_05V);
pc.printf(" VCM set to 2.05V\n");
break;
case 4:
ad77681_set_VCM_output(device, AD77681_VCM_1_9V);
pc.printf(" VCM set to 1.9V\n");
break;
case 5:
ad77681_set_VCM_output(device, AD77681_VCM_1_65V);
pc.printf(" VCM set to 1.65V\n");
break;
case 6:
ad77681_set_VCM_output(device, AD77681_VCM_1_1V);
pc.printf(" VCM set to 1.1V\n");
break;
case 7:
ad77681_set_VCM_output(device, AD77681_VCM_0_9V);
pc.printf(" VCM set to 0.9V\n");
break;
case 8:
ad77681_set_VCM_output(device, AD77681_VCM_OFF);
pc.printf(" VCM OFF\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Set data output mode
*
*/
void static menu_9_set_ad77681_data_output_mode(void)
{
uint32_t new_data_mode = 0, new_length = 0, new_status = 0, new_crc = 0;
pc.printf(" ADC data outpup modes: \n");
pc.printf(" 1 - Continuous: waiting for DRDY\n");
pc.printf(" 2 - Continuous one shot: waiting for SYNC_IN\n");
pc.printf(" 3 - Single-conversion standby\n");
pc.printf(" 4 - Periodic standby\n");
pc.printf(" 5 - Standby mode\n");
pc.printf(" 6 - 16bit or 24bit data format\n");
pc.printf(" 7 - Status bit output\n");
pc.printf(" 8 - Switch form diag mode to measure\n");
pc.printf(" 9 - Switch form measure to diag mode\n");
pc.printf(" 10 - Set CRC type\n");
pc.printf(" Select an option: \n");
getUserInput(&new_data_mode);
pc.putc('\n');
switch (new_data_mode) {
case 1:
ad77681_set_conv_mode(device, AD77681_CONV_CONTINUOUS, device->diag_mux_sel, device->conv_diag_sel); // DIAG MUX NOT SELECTED
pc.printf(" Continuous mode set\n");
break;
case 2:
ad77681_set_conv_mode(device, AD77681_CONV_ONE_SHOT, device->diag_mux_sel, device->conv_diag_sel);
pc.printf(" Continuous one shot conversion set\n");
break;
case 3:
ad77681_set_conv_mode(device, AD77681_CONV_SINGLE, device->diag_mux_sel, device->conv_diag_sel);
pc.printf(" Single conversion standby mode set\n");
break;
case 4:
ad77681_set_conv_mode(device, AD77681_CONV_PERIODIC, device->diag_mux_sel, device->conv_diag_sel);
pc.printf(" Periodiec standby mode set\n");
break;
case 5:
ad77681_set_conv_mode(device, AD77681_CONV_STANDBY, device->diag_mux_sel, device->conv_diag_sel);
pc.printf(" Standby mode set\n");
break;
case 6:
pc.printf(" Conversion length select: \n");
pc.printf(" 1 - 24bit length\n");
pc.printf(" 2 - 16bit length\n");
getUserInput(&new_length);
pc.putc('\n');
switch (new_length) {
case 1:
ad77681_set_convlen(device, AD77681_CONV_24BIT);
pc.printf(" 24bit data output format selected\n");
break;
case 2:
ad77681_set_convlen(device, AD77681_CONV_16BIT);
pc.printf(" 16bit data output format selected\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
break;
case 7:
pc.printf(" Status bit output: \n");
pc.printf(" 1 - Enable status bit after each ADC conversion\n");
pc.printf(" 2 - Disable status bit after each ADC conversion\n");
getUserInput(&new_status);
pc.putc('\n');
switch (new_status) {
case 1:
ad77681_set_status_bit(device, true);
pc.printf(" Status bit enabled\n");
break;
case 2:
ad77681_set_status_bit(device, false);
pc.printf(" Status bit disabled\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
break;
case 8:
ad77681_set_conv_mode(device, device->conv_mode, device->diag_mux_sel, false); // DIAG MUX NOT SELECTED
pc.printf(" Measure mode selected\n");
break;
case 9:
ad77681_set_conv_mode(device, device->conv_mode, device->diag_mux_sel, true); // DIAG MUX SELECTED
pc.printf(" Diagnostic mode selected\n");
break;
case 10:
pc.printf(" CRC settings \n");
pc.printf(" 1 - Disable CRC\n");
pc.printf(" 2 - 8-bit polynomial CRC\n");
pc.printf(" 3 - XOR based CRC\n");
getUserInput(&new_crc);
pc.putc('\n');
switch (new_crc) {
case 1:
if(ad77681_set_crc_sel(device, AD77681_NO_CRC)==SUCCESS)
pc.printf(" CRC disabled\n");
else
pc.printf("Command Failed\n");
break;
case 2:
ad77681_set_crc_sel(device, AD77681_CRC);
pc.printf(" 8-bit polynomial CRC method selected\n");
break;
case 3:
ad77681_set_crc_sel(device, AD77681_XOR);
pc.printf(" XOR based CRC method selected\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Set diagnostic mode
*
*/
void static menu_10_set_ad77681_diagnostic_mode(void)
{
uint32_t new_diag_mode = 0;
pc.printf(" ADC diagnostic modes: \n");
pc.printf(" 1 - Internal temperature sensor\n");
pc.printf(" 2 - AIN shorted\n");
pc.printf(" 3 - Positive full-scale\n");
pc.printf(" 4 - Negative full-scale\n");
pc.printf(" Select an option: \n");
getUserInput(&new_diag_mode);
pc.putc('\n');
switch (new_diag_mode) {
case 1:
ad77681_set_conv_mode(device, device->conv_mode, AD77681_TEMP_SENSOR, true);
pc.printf(" Diagnostic mode: Internal temperature sensor selected\n");
break;
case 2:
ad77681_set_conv_mode(device, device->conv_mode, AD77681_AIN_SHORT, true);
pc.printf(" Diagnostic mode: AIN shorted selected\n");
break;
case 3:
ad77681_set_conv_mode(device, device->conv_mode, AD77681_POSITIVE_FS, true);
pc.printf(" Diagnostic mode: Positive full-scale selected\n");
break;
case 4:
ad77681_set_conv_mode(device, device->conv_mode, AD77681_NEGATIVE_FS, true);
pc.printf(" Diagnostic mode: Negative full-scale selected\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Set Gains and Offsets
*
*/
void static menu_11_set_ad77681_gains_offsets(void)
{
uint32_t gain_offset, ret;
uint32_t new_menu_select;
pc.printf(" Gains and Offsets settings: \n");
pc.printf(" 1 - Set gain\n");
pc.printf(" 2 - Set offset\n");
pc.printf(" Select an option: \n");
getUserInput(&new_menu_select);
pc.putc('\n');
switch (new_menu_select) {
case 1:
pc.printf(" Insert new Gain value in decimal form\n");
ret = getUserInput(&gain_offset);
if ((gain_offset <= 0xFFFFFF) && (ret == SUCCESS)) {
ad77681_apply_gain(device, gain_offset);
pc.printf(" Value %d has been successfully inserted to the Gain register\n", gain_offset);
} else
pc.printf(" Invalid value\n");
break;
case 2:
pc.printf(" Insert new Offset value in decimal form\n");
ret = getUserInput(&gain_offset);
if ((gain_offset <= 0xFFFFFF) && (ret == SUCCESS)) {
ad77681_apply_offset(device, gain_offset);
pc.printf(" Value %d has been successfully inserted to the Offset register\n", gain_offset);
} else
pc.printf(" Invalid value\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Read ADC status from status registers
*
*/
void static menu_12_ad77681_read_master_status(void)
{
uint8_t reg_read_buf[3];
char binary_number[8];
ad77681_status(device, current_status); // Read AD7768-1 Status
pc.putc('\n');
pc.printf("== MASTER STATUS REGISER\n");
pc.printf("Master error: %s\n", ((current_status->master_error == 0) ? "OK" : "FAULT"));
pc.printf("ADC error: %s\n", ((current_status->adc_error == 0) ? "OK" : "FAULT"));
pc.printf("Dig error: %s\n", ((current_status->dig_error == 0) ? "OK" : "FAULT"));
pc.printf("Ext. clock: %s\n", ((current_status->adc_err_ext_clk_qual == 0) ? "OK" : "FAULT"));
pc.printf("Filter saturated: %s\n", ((current_status->adc_filt_saturated == 0) ? "OK" : "FAULT"));
pc.printf("Filter not settled: %s\n", ((current_status->adc_filt_not_settled == 0) ? "OK" : "FAULT"));
pc.printf("SPI error: %s\n", ((current_status->spi_error == 0) ? "OK" : "FAULT"));
pc.printf("POR Flag: %s\n", ((current_status->por_flag == 0) ? "OK" : "FAULT"));
if (current_status->spi_error == 1) {
pc.printf("\n== SPI DIAG STATUS REGISER\n");
pc.printf("SPI ignore error: %s\n", ((current_status->spi_ignore == 0) ? "OK" : "FAULT"));
pc.printf("SPI clock count error: %s\n", ((current_status->spi_clock_count == 0) ? "OK" : "FAULT"));
pc.printf("SPI read error: %s\n", ((current_status->spi_read_error == 0) ? "OK" : "FAULT"));
pc.printf("SPI write error: %s\n", ((current_status->spi_write_error == 0) ? "OK" : "FAULT"));
pc.printf("SPI CRC error: %s\n", ((current_status->spi_crc_error == 0) ? "OK" : "FAULT"));
}
if (current_status->adc_error == 1) {
pc.printf("\n== ADC DIAG STATUS REGISER\n");
pc.printf("DLDO PSM error: %s\n", ((current_status->dldo_psm_error == 0) ? "OK" : "FAULT"));
pc.printf("ALDO PSM error: %s\n", ((current_status->aldo_psm_error == 0) ? "OK" : "FAULT"));
pc.printf("REF DET error: %s\n", ((current_status->ref_det_error == 0) ? "OK" : "FAULT"));
pc.printf("FILT SAT error: %s\n", ((current_status->filt_sat_error == 0) ? "OK" : "FAULT"));
pc.printf("FILT NOT SET error: %s\n", ((current_status->filt_not_set_error == 0) ? "OK" : "FAULT"));
pc.printf("EXT CLK QUAL error: %s\n", ((current_status->ext_clk_qual_error == 0) ? "OK" : "FAULT"));
}
if (current_status->dig_error == 1) {
pc.printf("\n== DIGITAL DIAG STATUS REGISER\n");
pc.printf("Memory map CRC error: %s\n", ((current_status->memoy_map_crc_error == 0) ? "OK" : "FAULT"));
pc.printf("RAM CRC error: %s\n", ((current_status->ram_crc_error == 0) ? "OK" : "FAULT"));
pc.printf("FUSE CRC error: %s\n", ((current_status->fuse_crc_error == 0) ? "OK" : "FAULT"));
}
pc.putc('\n');
print_prompt();
}
/**
* Register read
*
*/
void static menu_13_ad77681_read_register(void)
{
uint32_t new_reg_to_read = 0;
uint8_t reg_read_buf[3], read_adc_data[6], hex_number = 0;
uint8_t HI = 0, MID = 0, LO = 0;
char binary_number[8];
pc.printf(" Read desired register: \n");
pc.printf(" 1 - 0x03 - Chip type\n");
pc.printf(" 2 - 0x14 - Interface format\n");
pc.printf(" 3 - 0x15 - Power clock\n");
pc.printf(" 4 - 0x16 - Analog\n");
pc.printf(" 5 - 0x17 - Analog2\n");
pc.printf(" 6 - 0x18 - Conversion\n");
pc.printf(" 7 - 0x19 - Digital filter\n");
pc.printf(" 8 - 0x1A - SINC3 Dec. rate MSB\n");
pc.printf(" 9 - 0x1B - SINC3 Dec. rate LSB\n");
pc.printf(" 10 - 0x1C - Duty cycle ratio\n");
pc.printf(" 11 - 0x1D - Sync, Reset\n");
pc.printf(" 12 - 0x1E - GPIO Controll\n");
pc.printf(" 13 - 0x1F - GPIO Write\n");
pc.printf(" 14 - 0x20 - GPIO Read\n");
pc.printf(" 15 - 0x21 - 0x23 - Offset register\n");
pc.printf(" 16 - 0x24 - 0x26 - Gain register\n");
pc.printf(" 17 - 0x2C - ADC Data\n");
pc.printf(" Select an option: \n");
getUserInput(&new_reg_to_read);
pc.putc('\n');
switch (new_reg_to_read) {
case 1:
ad77681_spi_reg_read(device, AD77681_REG_CHIP_TYPE, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x03 - Chip type register is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 2:
ad77681_spi_reg_read(device, AD77681_REG_INTERFACE_FORMAT, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x14 - Interface format register is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 3:
ad77681_spi_reg_read(device, AD77681_REG_POWER_CLOCK, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x15 - Power clock register is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 4:
ad77681_spi_reg_read(device, AD77681_REG_ANALOG, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x16 - Anlaog register is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 5:
ad77681_spi_reg_read(device, AD77681_REG_ANALOG2, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x17 - Analog2 regster is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 6:
ad77681_spi_reg_read(device, AD77681_REG_CONVERSION, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x18 - Conversion register is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 7:
ad77681_spi_reg_read(device, AD77681_REG_DIGITAL_FILTER, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x19 - Digital filter register is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 8:
ad77681_spi_reg_read(device, AD77681_REG_SINC3_DEC_RATE_MSB, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x1A - SINC3 Dec. rate MSB is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 9:
ad77681_spi_reg_read(device, AD77681_REG_SINC3_DEC_RATE_LSB, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x1B - SINC3 Dec. rate LSB is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 10:
ad77681_spi_reg_read(device, AD77681_REG_DUTY_CYCLE_RATIO, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x1C - Duty cycle ratio 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 11:
ad77681_spi_reg_read(device, AD77681_REG_SYNC_RESET, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x1D - Sync, Reset 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 12:
ad77681_spi_reg_read(device, AD77681_REG_GPIO_CONTROL, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x1E - GPIO Controll is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 13:
ad77681_spi_reg_read(device, AD77681_REG_GPIO_WRITE, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x1F - GPIO Write is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 14:
ad77681_spi_reg_read(device, AD77681_REG_GPIO_READ, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x20 - GPIO Read is: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
case 15:
ad77681_spi_reg_read(device, AD77681_REG_OFFSET_HI, reg_read_buf);
HI = reg_read_buf[1];
ad77681_spi_reg_read(device, AD77681_REG_OFFSET_MID, reg_read_buf);
MID = reg_read_buf[1];
ad77681_spi_reg_read(device, AD77681_REG_OFFSET_LO, reg_read_buf);
LO = reg_read_buf[1];
pc.printf(" Value of 0x21 - 0x23 - Offset register is: 0x%x %x %x\n", HI, MID, LO);
break;
case 16:
ad77681_spi_reg_read(device, AD77681_REG_GAIN_HI, reg_read_buf);
HI = reg_read_buf[1];
ad77681_spi_reg_read(device, AD77681_REG_GAIN_MID, reg_read_buf);
MID = reg_read_buf[1];
ad77681_spi_reg_read(device, AD77681_REG_GAIN_LO, reg_read_buf);
LO = reg_read_buf[1];
pc.printf(" Value of 0x24 - 0x26 - Gain register is: 0x%x %x %x\n", HI, MID, LO);
break;
case 17:
ad77681_spi_read_adc_data(device, read_adc_data, AD77681_REGISTER_DATA_READ);
pc.printf(" Value of 0x2C - ADC data is: 0x%x 0x%x 0x%x\n", read_adc_data[1], read_adc_data[2], read_adc_data[3]);
break;
case 18:
ad77681_spi_reg_read(device, AD77681_REG_INTERFACE_FORMAT, reg_read_buf);
print_binary(reg_read_buf[1], binary_number);
pc.printf(" Value of 0x14 -REG_INTERFACE_FORMATis: 0x%x 0b%s\n", reg_read_buf[1], binary_number);
break;
default :
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Print measured data and transfered to voltage
*
*/
void static menu_14_read_ad77681_single_conv_data(void)
{
uint8_t adc_reg[6];
uint32_t raw_code;
int32_t converted_data;
double voltage;
int32_t shifted_data;
char buf[15];
ad77681_spi_read_adc_data(device, adc_reg, AD77681_REGISTER_DATA_READ);
raw_code = (adc_reg[1] << 16) | (adc_reg[2] << 8) | (adc_reg[3] << 0);
// Printing Voltage
pc.printf("\n\nVoltage\n");
ad77681_data_to_voltage(device, &raw_code, &voltage);
sprintf(buf, "%.9f \n",voltage);
pc.printf(buf);
memset(buf, 0, sizeof(buf));//clears buffer
// Printing Raw Code
pc.printf("\n\nRaw Code\n");
pc.printf("%d\n", raw_code);
// Printing Shifted Code
pc.printf("\n\nShifted Code\n");
if (raw_code & 0x800000)
shifted_data = (int32_t)((0xFF << 24) | raw_code);
else
shifted_data = (int32_t)((0x00 << 24) | raw_code);
pc.printf("%d\n", shifted_data + AD7768_HALF_SCALE);
print_prompt();
}
/**
* Read ADC data
*
*/
void static menu_15_read_ad77681_continuous_data(void)
{
uint8_t buf[6];
uint32_t new_sample_count = 0;
int32_t ret;
pc.printf(" Read Continuous ADC Data");
pc.printf(" Input number of samples (1 to 4096): \n");
ret = getUserInput(&new_sample_count); // Get user input
if ((new_sample_count <= 4096) && (ret == SUCCESS) ) {
pc.printf("\n%d of samples\n", new_sample_count); // Print Desired Measurement Count
measured_data.samples = (uint16_t)(new_sample_count);
measured_data.finish = false;
measured_data.count = 0;
pc.printf("Sampling....\n");
ad77681_set_continuos_read(device, AD77681_CONTINUOUS_READ_ENABLE);
__enable_irq(); // Enable all interupts
drdy.enable_irq(); // Enable interrupt on DRDY pin
drdy.fall(&drdy_interrupt); // Interrupt on falling edne of DRDY
while (!measured_data.finish) { // While loop. Waiting for the measurements to be completed
if (int_event==true) { // Checks if Interrupt Occurred
ad77681_spi_read_adc_data(device, buf, AD77681_CONTINUOUS_DATA_READ); // Read the continuous read data
if (device->conv_len == AD77681_CONV_24BIT) // 24bit format
measured_data.raw_data[measured_data.count] = (buf[0] << 16 | buf[1] << 8 | buf[2]<< 0); // Combining the SPI buffers
else // 16bit format
measured_data.raw_data[measured_data.count] = (buf[0] << 8 | buf[1]<< 0); // Combining the SPI buffers
measured_data.count++; // Increment Measured Data Counter
int_event=false; // Set int event flag after reading the Data
}
}
ad77681_set_continuos_read(device, AD77681_CONTINUOUS_READ_DISABLE); // Disable continuous ADC read
pc.printf("Done Sampling....\n");
}
else {
pc.printf(" Invalid option\n");
}
print_prompt();
}
/**
* Print measured data and transfered to voltage
*
*/
void static menu_16_print_ad77681_continuos_read_data(void)
{
double voltage;
int32_t shifted_data;
uint16_t i;
char buf[15];
if (measured_data.finish) {
// Printing Voltage
pc.printf("\n\nVoltage\n");
for ( i = 0; i < measured_data.samples; i++) {
ad77681_data_to_voltage(device, &measured_data.raw_data[i], &voltage);
sprintf(buf, "%.9f \n",voltage);
pc.printf(buf);
memset(buf, 0, sizeof(buf));//clears buffer
}
// Printing Codes
pc.printf("\n\nCodes\n");
for(i = 0 ; i < measured_data.samples ; i++) {
if (measured_data.raw_data[i] & 0x800000)
shifted_data = (int32_t)((0xFF << 24) | measured_data.raw_data[i]);
else
shifted_data = (int32_t)((0x00 << 24) | measured_data.raw_data[i]);
pc.printf("%d\n", shifted_data + AD7768_HALF_SCALE);
}
// Printing Raw Date
pc.printf("\n\nRaw data\n");
for (i = 0; i < measured_data.samples; i++)
pc.printf("%d\n", measured_data.raw_data[i]);
// Set measured_data.finish to false after Printing
measured_data.finish = false;
} else
pc.printf("Data not prepared\n");
print_prompt();
}
/**
* Chceck read and write functionaity by writing to and reading from scratchpad register
*
*/
void static menu_17_ad77681_check_scratchpad(void)
{
uint32_t new_menu_select;
uint8_t chceck_sequence;
int32_t ret;
pc.printf(" Scratchpad check\n");
pc.printf(" Insert 8bit number for scratchpad check: \n");
ret = getUserInput(&new_menu_select); // Get user input
if ((new_menu_select <= 0xFF) && (new_menu_select >= 0) && (ret == SUCCESS)) {
chceck_sequence = (uint8_t)(new_menu_select);
ret = ad77681_scratchpad(device, &chceck_sequence); // Write and read Scratch Pad
pc.printf(" Insered sequence: %d\n Returned sequence: %d\n", new_menu_select, chceck_sequence);
if (ret == SUCCESS)
pc.printf(" SUCCESS!\n");
else
pc.printf(" FAILURE!\n");
} else
pc.printf(" Invalid value\n");
print_prompt();
}
void static menu_18_reset_ad77681_ADC(void)
{
uint32_t new_reset_option = 0;
pc.printf(" ADC reset opportunities: \n");
pc.printf(" 1 - Soft reset - over SPI\n");
pc.printf(" 2 - Hard reset - uing RESET pin\n");
pc.printf(" Select an option: \n");
getUserInput(&new_reset_option);
pc.putc('\n');
switch (new_reset_option) {
case 1:
ad77681_soft_reset(device); // Perform soft reset thru SPI write
pc.printf(" ADC after soft reset\n");
break;
case 2:
adc_hard_reset(); // Perform hard reset thru GPIO
pc.printf(" ADC after hard reset\n");
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Rest and set the Board to default setting
*
*/
void static menu_19_set_default_settings(void)
{
int32_t default_settings_flag;
adc_hard_reset(); // Perform hard reset thru GPIO
default_settings_flag = ad77681_setup(&device, init_params, ¤t_status); // SETUP and check connection
adc_gpio_init(); // Initilized SDP-K1 GPIOS
if (default_settings_flag == SUCCESS)
pc.printf("\n Default settings successfull loaded\n");
else
pc.printf("\n Error in settings, please reset the ADC\n");
print_prompt();
}
/**
* Set Vref anc MCLK as "exteranl" values, depending on you setup
*
*/
void static menu_20_mclk_vref(void)
{
uint32_t input = 0, new_settings = 0;
int32_t ret;
pc.printf(" Set Vref and Mclk: \n");
pc.printf(" 1 - Change Vref\n");
pc.printf(" 2 - Change MCLK\n");
pc.printf(" Select an option: \n");
getUserInput(&new_settings);
pc.putc('\n');
switch (new_settings) {
case 1:
pc.printf(" Change Vref from %d mV to [mV]: ", device->vref); // Vref change
ret = getUserInput(&input);
if ((input >= 1000) && (input <= 5000) && (ret == SUCCESS)) {
pc.printf("\n New Vref value is %d mV", input);
device->vref = input;
} else
pc.printf(" Invalid option\n");
pc.putc('\n');
break;
case 2:
pc.printf(" Change MCLK from %d kHz to [kHz]: ", device->mclk); // MCLK change
ret = getUserInput(&input);
if ((input >= 10000) && (input <= 50000) && (ret == SUCCESS)) {
pc.printf("\n New MCLK value is %d kHz\n", input);
device->vref = input;
ad77681_update_sample_rate(device); // Update the sample rate after changinig the MCLK
} else
pc.printf(" Invalid option\n");
pc.putc('\n');
break;
default:
pc.printf(" Invalid option\n");
break;
}
print_prompt();
}
/**
* Prints out an array in binary form
*
*/
void static print_binary(uint8_t number, char *binary_number)
{
for (int8_t i = 7; i >= 0; i--) {
if (number & 1)
binary_number[i] = '1';
else
binary_number[i] = '0';
number >>= 1;
}
}
/**
* Read user input from uart
* *UserInput = 0 if failure
*
*/
int32_t static getUserInput(uint32_t *UserInput)
{
long uart_val;
int32_t ret;
ret = pc.scanf("%ld", &uart_val); // Return 1 = OK, Return 0 = Fail
if((ret == 0) || (uart_val < 0)) { // Failure if uart_val is negative, or non-digit
*UserInput = 0;
return FAILURE;
}
*UserInput = (uint32_t)(uart_val);
return SUCCESS;
}
/**
* ADC hard reset thru SDP-K1 GPIO
*
*/
void static adc_hard_reset()
{
adc_rst=0; // Set ADC reset pin to Low
mdelay(100); // Delay 100ms
adc_rst=1; // Set ADC reset pin to High
mdelay(100); // Delay 100ms
}
/**
* ADC hard reset thru SDP-K1 GPIO
*
*/
void static adc_gpio_init()
{
ad77681_global_gpio(device, AD77681_GLOBAL_GPIO_ENABLE); // Enable AD7768-1 GPIO pins
ad77681_gpio_inout(device, AD77681_GPIO_CNTRL_ALL_GPIOS_OP_EN(0x0F), AD77681_ALL_GPIOS); // Set AD7768-1 GPIO1 - GPIO3 as Output
ad77681_gpio_write(device,AD77681_GPIO_CNTRL_ALL_GPIOS_OP_EN(0x05), AD77681_ALL_GPIOS); // Set FDA to Low Power mode and PGIA Gain to 1
}