Other Parts Discussed in Thread: MSP430F5529, ENERGIA
Hi,
I would like to know, how can I get the tof data from the TDC7210 to MSP430f5529 without gui connection. In this EVM firmware, how can I add modified function?
//******************************************************************************
// Demo Application01 for MSP430/TDC720x Interface Code Library v1.0
// Byte Read/ Byte Write TDC720x Registers
//
// MSP430F5529
// -----------------
// /|\| XIN|-
// | | |
// --|RST XOUT|-
// | |
// | P3.0/UCB0SIMO|--> SDI
// | P3.1/UCB0SOMI|<-- SDO
// | P3.2/UCB0CLK|--> CLK
// | P2.6|--> CSB
// | P2.4|
// | |
// | P1.2|
//
// Vishy Natarajan
// Texas Instruments Inc.
// March 2013
// Built with IAR Embedded Workbench Version: 5.5x
//******************************************************************************
/* Copyright 2011-2012 Texas Instruments Incorporated. All rights reserved.
IMPORTANT: Your use of this Software is limited to those specific rights
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*******************************************************************************/
#include <stdio.h>
#include <stdint.h>
#include "TI_TDC720x.h"
#include "TI_MSP430.h"
#include "TI_MSP430_hardware_board.h"
#include "TI_MSP430_spi.h"
#include "HAL_PMM.h"
void Init_Clock (void);
void InitMCU(void);
// Test TDC720x Register Read/Write & Conversion
uint32_t clk_count;
uint8_t read_val[3], all_data[TDC720x_ALL_DATA_SIZE], byte_data;
uint32_t tout = 0;
uint8_t TDC720x_Parallel_Read = 1;
//******************************************************************************
void main(void)
{
WDTCTL = WDTPW+WDTHOLD; // Stop WDT
TI_TDC720x_GLED_PxOUT |= TI_TDC720x_GLED_PIN; // Set LED ON
TI_TDC720x_GLED_PxDIR |= TI_TDC720x_GLED_PIN; // Set pin direction is output
TI_TDC720x_RLED_PxOUT &= ~TI_TDC720x_RLED_PIN; // Set RLED OFF
TI_TDC720x_RLED_PxDIR |= TI_TDC720x_RLED_PIN; // Set pin direction
TI_TDC720x_OSCENABLE_PxOUT |= TI_TDC720x_OSCENABLE_PIN; // Set pin high: enable afe osc
TI_TDC720x_OSCENABLE_PxDIR |= TI_TDC720x_OSCENABLE_PIN; // Set pin direction is output
TI_TDC720x_ENABLE1_PxOUT |= TI_TDC720x_ENABLE1_PIN; // Enable device
TI_TDC720x_ENABLE1_PxDIR |= TI_TDC720x_ENABLE1_PIN; // Set pin direction output
#if 0
TI_TDC720x_FLAG_PxOUT |= TI_TDC720x_FLAG_PIN; // Flag Input Pull up enable
TI_TDC720x_FLAG_PxREN |= TI_TDC720x_FLAG_PIN; // Flag Input Resistor enable
TI_TDC720x_FLAG_PxDIR &= ~TI_TDC720x_FLAG_PIN; // Set pin direction input
#endif
// configure Port Pin to handle Interrupt Bar Output (INTB) from TDC720x
TI_TDC720x_INTB_PxDIR &= ~TI_TDC720x_INTB1_PIN; // Set up port pin for INTB
TI_TDC720x_INTB_PxOUT |= TI_TDC720x_INTB1_PIN; // INTB Input Pull up enable
TI_TDC720x_INTB_PxREN |= TI_TDC720x_INTB1_PIN; // INTB Input Resistor enable
TI_TDC720x_INTB_PxIES |= TI_TDC720x_INTB1_PIN; // Interrupt Edge Select
TI_TDC720x_INTB_PxIFG &= ~TI_TDC720x_INTB1_PIN; // Clear Interrupt Flag
// TI_TDC720x_INTB_PxIE |= TI_TDC720x_INTB1_PIN; // Enable Port interrupt
// oscillator fail if LED keeps flashing after InitMCU
InitMCU();
TI_TDC720x_SPISetup(); // Initilaize MSP430 SPI Block
// Test TDC720x Register Read/Write & Conversion
read_val[0] = TI_TDC720x_SPIByteReadReg(0x00, TDC720x_TDC2);
read_val[1] = TI_TDC720x_SPIByteReadReg(0x01, TDC720x_TDC2);
read_val[2] = TI_TDC720x_SPIByteReadReg(0x03, TDC720x_TDC2);
TI_TDC720x_SPIByteWriteReg(0x01, 0x40, TDC720x_TDC2);
read_val[0] = TI_TDC720x_SPIByteReadReg(0x00, TDC720x_TDC2);
read_val[1] = TI_TDC720x_SPIByteReadReg(0x01, TDC720x_TDC2);
read_val[2] = TI_TDC720x_SPIByteReadReg(0x03, TDC720x_TDC2);
#if 0
// read config1 register
byte_data = TI_TDC720x_SPIByteReadReg(TI_TDC720x_CONFIG1_REG, TDC720x_TDC1);
// set mode 2 & start measurement bit
byte_data |= 0x03;
TI_TDC720x_SPIByteWriteReg(TI_TDC720x_CONFIG1_REG, byte_data, TDC720x_TDC1);
//wait for INTB pin to go low
tout = 0;
while(TI_TDC720x_INTB_PxIN & TI_TDC720x_INTB1_PIN)
{
tout++;
if (tout >= TIMEOUT_VALUE)
break;
}
TI_TDC720x_SPIAllReadReg(all_data, TDC720x_TDC1);
clk_count = TI_TDC720x_SPILongReadReg(0x11, TDC720x_TDC1);
#endif
// test if byte write/read values match
if (read_val[1] == 0x40)
{
while (1) // no error: blink LED continuously
{
__delay_cycles(250000);
__delay_cycles(250000);
TI_TDC720x_GLED_PxOUT ^= TI_TDC720x_GLED_PIN;
}
} else
{
TI_TDC720x_GLED_PxOUT &= ~TI_TDC720x_GLED_PIN; // error: Set LED OFF
}
__bis_SR_register(LPM0_bits + GIE); // Enter LPM0, enable interrupts
__no_operation(); // For debugger
}
//******************************************************************************
//******************************************************************************
/**
* @brief Function Name: Init_Clock .
* @brief Description : Initializes MSP430 clock module.
* @param parameters : none
* @return Value : none
*/
//******************************************************************************
void Init_Clock(void)
{
// UCSCTL3 = SELREF_2; // Set DCO FLL reference = REFO
// UCSCTL4 |= SELA_2; // Set ACLK = REFO
// Enable XT2 XIN/XOUT Pins
P5SEL |= 0x0C; // Select XIN, XOUT on P5.3 and P5.2
UCSCTL6 &= ~XT2OFF; // Enable XT2
UCSCTL6 |= XT2DRIVE_3;
P5SEL |= BIT4+BIT5; // Select XT1
UCSCTL6 &= ~(XT1OFF); // XT1 On
UCSCTL6 |= XCAP_3; // Internal load cap
UCSCTL3 = 0; // FLL Reference Clock = XT1
// Loop until XT1,XT2 & DCO stabilizes - In this case loop until XT1 and DCo settle
do
{
UCSCTL7 &= ~(XT2OFFG + XT1LFOFFG + DCOFFG);
// Clear XT2,XT1,DCO fault flags
SFRIFG1 &= ~OFIFG; // Clear fault flags
TI_TDC720x_RLED_PxOUT ^= TI_TDC720x_RLED_PIN; // Toggle LED
__delay_cycles(250000);
}while (SFRIFG1&OFIFG); // Test oscillator fault flag
UCSCTL6 &= ~(XT1DRIVE_3); // Xtal is now stable, reduce drive strength
UCSCTL4 |= SELA_0; // ACLK = LFTX1 (by default)
__bis_SR_register(SCG0); // Disable the FLL control loop
UCSCTL0 = 0x0000; // Set lowest possible DCOx, MODx
UCSCTL1 = DCORSEL_7; // Select DCO range 50MHz operation
UCSCTL2 = FLLD_0 + 747; // Set DCO Multiplier(762/498) for 25MHz/16MHz
// (N + 1) * FLLRef = Fdco
// (762 + 1) * 32768 = 25MHz
// Set FLL Div = fDCOCLK/2
__bic_SR_register(SCG0); // Enable the FLL control loop
// Worst-case settling time for the DCO when the DCO range bits have been
// changed is n x 32 x 32 x f_MCLK / f_FLL_reference. See UCS chapter in 5xx
// UG for optimization.
// 32 x 32 x 25 MHz / 32,768 Hz ~ 780k MCLK cycles for DCO to settle
__delay_cycles(782000);
// Loop until XT1,XT2 & DCO stabilizes - In this case only DCO has to stabilize
do
{
UCSCTL7 &= ~(XT2OFFG + XT1LFOFFG + DCOFFG);
// Clear XT2,XT1,DCO fault flags
SFRIFG1 &= ~OFIFG; // Clear fault flags
TI_TDC720x_RLED_PxOUT ^= TI_TDC720x_RLED_PIN; // Toggle LED
__delay_cycles(250000);
}while (SFRIFG1&OFIFG); // Test oscillator fault flag
UCSCTL4 = SELA__XT1CLK + SELS__DCOCLKDIV + SELM__DCOCLKDIV; // SMCLK=MCLK=
// Loop until XT1,XT2 & DCO stabilizes - In this case only DCO has to stabilize
do
{
UCSCTL7 &= ~(XT2OFFG + XT1LFOFFG + DCOFFG);
// Clear XT2,XT1,DCO fault flags
SFRIFG1 &= ~OFIFG; // Clear fault flags
TI_TDC720x_RLED_PxOUT ^= TI_TDC720x_RLED_PIN; // Toggle LED
__delay_cycles(250000);
}while (SFRIFG1&OFIFG); // Test oscillator fault flag
TI_TDC720x_RLED_PxOUT &= ~TI_TDC720x_RLED_PIN; // turn off red
}
//******************************************************************************
/**
* @brief Local functions.
*/
/**
* @brief Function Name: InitMCU.
* @brief Description : Initializes the MSP430 peripherals and modules.
* @param parameters : none
* @return Value : none
*/
//******************************************************************************
void InitMCU(void)
{
__disable_interrupt(); // Disable global interrupts
SetVCore(3);
Init_Clock(); //Init clocks
__enable_interrupt(); // enable global interrupts
}
//******************************************************************************
Thank you.
Ahmed Syed Fahin
