configure ACLK = 32768 Hz to be sourced from external crystalĬS_initClockSignal(CS_ACLK,CS_LFXTCLK_SELECT,CS_CLOCK_DIVIDER_1) Set external clock frequency to ACLK frequency configure MCLK = 8MHz, SMCLK = 2MHz to be source by DCOCLKĬS_initClockSignal(CS_SMCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_4) ĬS_initClockSignal(CS_MCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_1) But in my device, current consumption is constantly ~40 uA.īelow are my clock settings // Set DCO Frequency to 8 MHzĬS_setDCOFreq(CS_DCORSEL_0, CS_DCOFSEL_6) As per the datasheet, low power mode should not use more that 1 uA of current. As per the flow of the code, The controller goes into LPM3 mode after executing the main loop commands.
I have adapted my code from FlowESI-GUI generate code program. I am developing a metering application which requires ESI sensing. UCA1TXBUF = 0x12 //Send 0x12 spi_data when RX interrupt occured P5OUT ^= (~BIT0) //LED toggle when entered into this function UCA1CTLW0 &= ~UCSWRST // **Initialize USCI state machine** UCA1CTLW0 |= UCSSEL_0 // UCxCLK in slave mode UCA1CTLW0 |= UCSYNC | UCCKPH | UCMSB |UCMODE_2 // 4-pin, 8-bit SPI slave, UCA1CTLW0 |= UCSWRST // **Put state machine in reset** P3MAP2 = PM_UCA1STE // STE port mapped to port 3.2 WDTCTL = WDTPW | WDTHOLD //stop watchdog timer
Kindly check any configuration is missing here. but no activity observed from slave side. STE pin (I assume it is chip select for 4pin slave mode) is pulled down when SPI data transfer. When a byte of data is sent from master, MSP430 doesn't entering into the ISR function. Here we have configured MSP430 eUSCI_A1 for 4 pin spi slave. We are facing issue in MSP430F6779 when using source code of TIDA - 00222 power measurement reference.
0 kommentar(er)
