From 0d84f5e512c4148bc45dd26eea177e09c0a21b56 Mon Sep 17 00:00:00 2001 From: Daniel Friesel Date: Thu, 11 Jan 2018 14:23:07 +0100 Subject: Add Sharp96 display driver, split up msp430 SPI into a1 / b --- src/arch/msp430fr5969lp/driver/spi.cc | 61 ----------------------------------- 1 file changed, 61 deletions(-) delete mode 100644 src/arch/msp430fr5969lp/driver/spi.cc (limited to 'src/arch/msp430fr5969lp/driver/spi.cc') diff --git a/src/arch/msp430fr5969lp/driver/spi.cc b/src/arch/msp430fr5969lp/driver/spi.cc deleted file mode 100644 index 981bc53..0000000 --- a/src/arch/msp430fr5969lp/driver/spi.cc +++ /dev/null @@ -1,61 +0,0 @@ -#include "driver/spi.h" -#include - -signed char SPI::setup() -{ - /* UCA1CLK Pin 2.4 */ - P2SEL0 &= ~BIT4; - P2SEL1 |= BIT4; - P2DIR |= BIT4; - - /* UCA1SIMO Pin 2.5 */ - P2SEL0 &= ~BIT5; - P2SEL1 |= BIT5; - P2DIR |= BIT5; - - /* UCA1SOMI Pin 2.6 */ - P2SEL0 &= ~BIT6; - P2SEL1 |= BIT6; - P2DIR &= ~BIT6; - //P2REN |= BIT6; - - UCA1CTLW0 |= UCSWRST; - UCA1MCTLW = 0; // no modulation - - UCA1CTLW0 = UCCKPH | UCMSB | UCMST | UCSYNC | UCMODE_0 | UCSSEL__SMCLK | UCSWRST; - UCA1BRW = 15; // /16 -> 1MHz - UCA1CTLW0 &= ~UCSWRST; -} - -signed char SPI::xmit(unsigned char tx_len, unsigned char *tx_buf, - unsigned char rx_len, unsigned char *rx_buf) -{ - volatile char rxbuf_cache; - if (tx_len < 1) { - return -1; - } - - UCA1IE &= ~(UCTXIE | UCRXIE); - - while (UCA1STATW & UCBUSY) ; - - rxbuf_cache = UCA1RXBUF; - UCA1TXBUF = 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) && (UCA1IF & UCTXIFG)) { - UCBA1TXBUF = tx_buf[tx_pos++]; - } - if (UCA1IFG & UCRXIFG) { - if (rx_pos < rx_len) { - rx_buf[rx_pos] = UCA1RXBUF; - } else { - rxbuf_cache = UCA1RXBUF; - } - } - rx_pos++; - } -} -- cgit v1.2.3