diff options
Diffstat (limited to 'src/arch/msp430fr5994lp')
-rw-r--r-- | src/arch/msp430fr5994lp/driver/spi_b.cc | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/src/arch/msp430fr5994lp/driver/spi_b.cc b/src/arch/msp430fr5994lp/driver/spi_b.cc index 0fa71da..8624a40 100644 --- a/src/arch/msp430fr5994lp/driver/spi_b.cc +++ b/src/arch/msp430fr5994lp/driver/spi_b.cc @@ -7,33 +7,33 @@ void SPI::setup() { - UCB0CTLW0 |= UCSWRST; + UCB1CTLW0 |= UCSWRST; - /* UCB0CLK Pin 2.2 */ - P2SEL0 &= ~BIT2; - P2SEL1 |= BIT2; - P2DIR |= BIT2; + /* UCB1CLK Pin 5.2 */ + P5SEL1 &= ~BIT2; + P5SEL0 |= BIT2; + P5DIR |= BIT2; - /* UCB0SIMO Pin 1.6 */ - P1SEL0 &= ~BIT6; - P1SEL1 |= BIT6; - P1DIR |= BIT6; + /* UCB1SIMO Pin 5.0 */ + P5SEL1 &= ~BIT0; + P5SEL0 |= BIT0; + P5DIR |= BIT0; - /* UCB0SOMI Pin 1.7 */ - P1SEL0 &= ~BIT7; - P1SEL1 |= BIT7; - P1DIR &= ~BIT7; + /* UCB1SOMI Pin 5.1 */ + P5SEL1 &= ~BIT1; + P5SEL0 |= BIT1; + P5DIR &= ~BIT1; //P1REN |= BIT6; - UCB0CTLW0 = UCCKPH | UCMSB | UCMST | UCSYNC | UCMODE_0 | UCSSEL__SMCLK | UCSWRST; - UCB0BRW = (F_CPU/F_I2C)-1; // /16 -> 1MHz - // UCB0BRW = (F_CPU / F_I2C) - 1 - UCB0CTLW0 &= ~UCSWRST; + UCB1CTLW0 = UCCKPH | UCMSB | UCMST | UCSYNC | UCMODE_0 | UCSSEL__SMCLK | UCSWRST; + UCB1BRW = (F_CPU/F_I2C)-1; // /16 -> 1MHz + // UCB1BRW = (F_CPU / F_I2C) - 1 + UCB1CTLW0 &= ~UCSWRST; } static inline unsigned char clean_rxbuf() { - return UCB0RXBUF; + return UCB1RXBUF; } signed char SPI::xmit(unsigned char tx_len, unsigned char *tx_buf, @@ -43,32 +43,32 @@ signed char SPI::xmit(unsigned char tx_len, unsigned char *tx_buf, return -1; } - while (UCB0STATW & UCBUSY) ; + while (UCB1STATW & UCBUSY) ; - if (!(UCB0IFG & UCTXIFG)) { + if (!(UCB1IFG & UCTXIFG)) { return -1; } - UCB0IFG &= ~UCRXIFG; - UCB0TXBUF = tx_buf[0]; + UCB1IFG &= ~UCRXIFG; + UCB1TXBUF = tx_buf[0]; unsigned char tx_pos = 1; unsigned char rx_pos = 0; while (tx_pos < tx_len || rx_pos < rx_len) { - if ((tx_pos < tx_len) && (UCB0IFG & UCTXIFG)) { - UCB0TXBUF = tx_buf[tx_pos++]; + if ((tx_pos < tx_len) && (UCB1IFG & UCTXIFG)) { + UCB1TXBUF = tx_buf[tx_pos++]; } - if (UCB0IFG & UCRXIFG) { + if (UCB1IFG & UCRXIFG) { if (rx_pos < rx_len) { - rx_buf[rx_pos] = UCB0RXBUF; + rx_buf[rx_pos] = UCB1RXBUF; } else { - UCB0IFG &= ~UCRXIFG; + UCB1IFG &= ~UCRXIFG; } rx_pos++; } } - while (UCB0STATW & UCBUSY) ; + while (UCB1STATW & UCBUSY) ; return 0; } |