Other Parts Discussed in Thread: MSP430FR5969, MSP-EXP430FR5969
Hello chaps.
I am facing a strange bug/problem with an MSP430FR5969.
I am using the MSP-EXP430FR5969 Launchpad.
The code I am using is a modified "Out Of The Box Demo". At the beginning it just prints some strings via the UART <-> USB bridge, a menu of sorts.
Here is the main()
int main(void) {
mode = '0';
// int i;
unsigned int k;
// Check if a wakeup from LPMx.5
if (SYSRSTIV == SYSRSTIV_LPM5WU) {
// Button S2 pressed
if (P1IFG & BIT1) {
// Clear P1.1 interrupt flag
GPIO_clearInterruptFlag(GPIO_PORT_P1, GPIO_PIN0);
// Exit FRAM Log Mode
mode = '0';
// Light up LED1 to indicate Exit from FRAM mode
Init_GPIO();
GPIO_setOutputHighOnPin(GPIO_PORT_P4, GPIO_PIN6);
__delay_cycles(600000);
}
else
{
// Continue FRAM data logging
mode = '0';
//bchris Init_RTC();
Init_GPIO();
//framLog();
}
}
else
{
Init_GPIO();
// Toggle LED1 and LED2 to indicate OutOfBox Demo start
int i;
for (i=10;i>0;i--)
{
GPIO_toggleOutputOnPin(GPIO_PORT_P1, GPIO_PIN0);
GPIO_toggleOutputOnPin(GPIO_PORT_P4, GPIO_PIN6);
__delay_cycles(200000);
}
}
// Board initializations
Init_GPIO();
// Init_Clock();
Init_ClockFast();
Init_UART();
// SEEPROM reset
atTWIReset();
// Main Loop
while (1) {
// // Acknowledge PC GUI's ping request
// if (pingHost)
// sendAckToPC();
switch (mode) {
case '0':
str = "\n *** AVAILABLE COMMANDS ***\n\0";
transmitString(str, strlen(str));
str = "\n 0: THIS MENU \n\0";
transmitString(str, strlen(str));
str = "\n 1: Z Test :) \n\0";
transmitString(str, strlen(str));
str = "\n 2: ORIGINAL SEEPROM HEX CONTENTS DUMP \n\0";
transmitString(str, strlen(str));
str = "\n 3: COPY ORIGINAL SEEPROM TO BACKUP \n\0";
transmitString(str, strlen(str));
str = "\n 4: COMPARE ORIGINAL TO BACKUP \n\0";
transmitString(str, strlen(str));
str = "\n\n AWAITING...\n\0";
transmitString(str, strlen(str));
__bis_SR_register(LPM3_bits | GIE); // Sleep. Waiting for command
__no_operation();
break;
case '1':
// Configure Timer
TIMER_A_startUpMode(TIMER_A0_BASE,
//TIMER_A_CLOCKSOURCE_ACLK,
TIMER_A_CLOCKSOURCE_SMCLK,
TIMER_A_CLOCKSOURCE_DIVIDER_1,
13,
TIMER_A_TAIE_INTERRUPT_DISABLE,
TIMER_A_CCIE_CCR0_INTERRUPT_ENABLE,
TIMER_A_DO_CLEAR);
//__bis_SR_register(LPM3_bits | GIE); // Enter LPM3. Delay for Ref to settle.
// Change timer delay to 1/8 second
TIMER_A_setCompareValue(TIMER_A0_BASE,
TIMER_A_CAPTURECOMPARE_REGISTER_0,
0x1000
);
__bis_SR_register(LPM3_bits | GIE); // Enter LPM3, wait for ~1/8 sec timer
// Light up LED1 for test
// Init_GPIO();
// GPIO_setOutputHighOnPin(GPIO_PORT_P4, GPIO_PIN6);
// __delay_cycles(600000);
// GPIO_setOutputLowOnPin(GPIO_PORT_P4, GPIO_PIN6);
// __bis_SR_register(LPM3_bits | GIE);
// __bic_SR_register(GIE);
// Select UART TXD on P2.0
GPIO_setAsPeripheralModuleFunctionOutputPin(GPIO_PORT_P2, GPIO_PIN0, GPIO_SECONDARY_MODULE_FUNCTION);
//bchris
//EUSCI_A_UART_transmitData(EUSCI_A0_BASE, 0x46);
//EUSCI_A_UART_transmitData(EUSCI_A0_BASE, ADC12MEM0_H); // Send higher byte of temperature data
//EUSCI_A_UART_transmitData(EUSCI_A0_BASE, ADC12MEM0_L); // Send lower byte of temperature data
//bchris
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, 0x5A);
//bchris_counter++;
GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN0);
while(EUSCI_A_UART_queryStatusFlags(EUSCI_A0_BASE, EUSCI_A_UART_BUSY));
__no_operation();
TIMER_A_stop(TIMER_A0_BASE);
//Init_GPIO();
GPIO_toggleOutputOnPin(GPIO_PORT_P1, GPIO_PIN0);
break;
case '2':
// Original SEEPROM dump
// for saving it to file.
bytesRead = 0;
for (k = 0; k < 256; k++) {
// Until original SEEPROM soldered to board
// work with the backup
// bytesRead = bytesRead + eepromReadSeq(SOURCE_EEPROM, k*32, testBuffer, 32);
bytesRead = bytesRead + eepromReadSeq(BACKUP_EEPROM, k*32, testBuffer, 32);
transmitData(testBuffer, 32);
}
if (bytesRead != 8192) {
str = "\n*** COULD NOT READ ALL SEEPROM CONTENTS ***\n\0";
transmitString(str, strlen(str));
}
mode = '0';
break;
case '3':
str = "\nSTARTING MEMORY COPY...\n\0";
transmitString(str, strlen(str));
eepromWriteByte(BACKUP_EEPROM, 0x0099, 0x8C);
testVar1 = eepromReadByte(BACKUP_EEPROM, 0x0099);
eepromWriteByte(BACKUP_EEPROM, 0x0200, 0x9C);
testVar1 = eepromReadByte(BACKUP_EEPROM, 0x0200);
eepromWriteByte(BACKUP_EEPROM, 0x0150, 0xAC);
testVar1 = eepromReadByte(BACKUP_EEPROM, 0x0150);
for (k=0; k < 32; k++) {
testBytes[k] = k;
}
testVar2 = eepromWritePage(BACKUP_EEPROM, 0x0100, testBytes, 32);
mode = '0'; // do nothing else
break;
case '6':
str = "\nSTARTING PWM...\n\0";
transmitString(str, strlen(str));
PWMStart();
mode = '0';
//bchris sendCalibrationConstants();
//bchris sendTimeStamp();
//transmitFRAMData();
break;
case '7':
str = "\nSTOPING PWM...\n\0";
transmitString(str, strlen(str));
PWMStop();
mode = '0';
//bchris sendCalibrationConstants();
//bchris sendTimeStamp();
//transmitFRAMData();
break;
}
// __bis_SR_register(LPM3_bits | GIE); // Enter LPM3 and wait for PC commands
// __no_operation();
}
}
The clock init.
void Init_ClockFast() {
// Set DCO frequency to 16 MHz
CS_setDCOFreq(CS_DCORSEL_1, CS_DCOFSEL_4);
//Set external clock frequency to 32.768 KHz
CS_setExternalClockSource(32768, 0);
//Set ACLK=LFXT
CS_clockSignalInit(CS_ACLK, CS_LFXTCLK_SELECT, CS_CLOCK_DIVIDER_16);
// Set SMCLK = DCO with frequency divider of 1
CS_clockSignalInit(CS_SMCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_16); // SMCLK = 1MHz
// Set MCLK = DCO with frequency divider of 1
CS_clockSignalInit(CS_MCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_2);
//Start XT1 with no time out
CS_LFXTStart(CS_LFXTDRIVE_0);
}
the UART init
void Init_UART() {
// Configure UART 9600 baud
// http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSP430BaudRateConverter/index.html
if ( STATUS_FAIL == EUSCI_A_UART_initAdvance(EUSCI_A0_BASE,
EUSCI_A_UART_CLOCKSOURCE_SMCLK,
6, // clockPrescalar
8, // firstModReg
17, // secondModReg
EUSCI_A_UART_NO_PARITY,
EUSCI_A_UART_LSB_FIRST,
EUSCI_A_UART_ONE_STOP_BIT,
EUSCI_A_UART_MODE,
//EUSCI_A_UART_AUTOMATIC_BAUDRATE_DETECTION_MODE,
1 )) // overSampling
return;
EUSCI_A_UART_enable(EUSCI_A0_BASE);
EUSCI_A_UART_clearInterruptFlag(EUSCI_A0_BASE,
EUSCI_A_UART_RECEIVE_INTERRUPT);
// Enable USCI_A0 RX interrupt
EUSCI_A_UART_enableInterrupt(EUSCI_A0_BASE,
EUSCI_A_UART_RECEIVE_INTERRUPT); // Enable interrupt
// Enable globale interrupt
__enable_interrupt();
}
And my transmitString() function
void transmitString(char * str, unsigned int len) {
// Select UART TXD on P2.0
GPIO_setAsPeripheralModuleFunctionOutputPin(GPIO_PORT_P2, GPIO_PIN0, GPIO_SECONDARY_MODULE_FUNCTION);
unsigned int i = 0;
for (i = 0; i < len; i++) {
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, str[i]);
while(EUSCI_A_UART_queryStatusFlags(EUSCI_A0_BASE, EUSCI_A_UART_BUSY)); // Wait for transmition to finish
}
GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN0);
GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN0);
}
Everything else is either cut out or left as it was on the original TI code, which is why I left it out.
If you want, I 'll be more than happy to paste it as well.
Now, with the above strings in the case loop, the output (cat /dev/ttyACM! on Ubuntu) is this:
*** AVAILABLE COMMANDS *** 0: THIS MENU 1: Z Test :) 2: ORIGINAL SEEPROM HEX CONTENTS DUMP 3: COPY ORIGINAL SEEPROM TO BACKUP 4: COMPARE ORIGINAL TO BACKUP AWAITING...
The fact that the half "\n" are missing, escaped my eye as well.
now if i change the
str = "\n 2: ORIGINAL SEEPROM HEX CONTENTS DUMP \n\0";
to
str = "\n 2: ORIGINAL SEEPROM CONTENTS DUMP \n\0";
the output is this:
*** AVAILABLE COMMANDS *** 0: THIS MENU 1: Z Test :) ��I%%91SEEPROM BYTES DUMP CONTENTS 3: COPY ORIGINAL SEEPROM TO BACKUP 4: COMPARE ORIGINAL TO BACKUP AWAITING...
One other thing I noticed: If I go an step run it via the debugger, everything prints out fine, including the missing \n !!
I don't know what to make of this :)
BTW here are the settings for the ttyACM1:
stty -F /dev/ttyACM1 -a
speed 9600 baud; rows 0; columns 0; line = 0;
intr = ^C; quit = ^\; erase = ^?; kill = ^H; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>;
start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 100; time = 2;
-parenb -parodd cs8 -hupcl -cstopb cread clocal -crtscts
-ignbrk brkint ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl ixon -ixoff -iuclc -ixany -imaxbel
-iutf8
-opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
-isig -icanon iexten -echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke
Thanks in advance.
