void can_w_bit(uint8_t addr, uint8_t mask, uint8_t val)
{
CAN_CS_LOW;
SPI_transmitData(MCP2515_SPI_BITMOD);
SPI_transmitData(addr);
SPI_transmitData(mask);
SPI_transmitData(val);
CAN_CS_HIGH;
}
void can_w_txbuf(uint8_t bufid, void *buf, uint8_t len)
{
uint16_t i;
uint8_t *sbuf = (uint8_t *)buf;
CAN_CS_LOW;
SPI_transmitData(MCP2515_SPI_LOAD_TXBUF | (bufid & 0x07));
for (i=0; i < len; i++) {
SPI_transmitData(sbuf[i]);
}
CAN_CS_HIGH;
}
void can_w_reg(uint8_t addr, void *buf, uint8_t len)
{
uint16_t i;
uint8_t *sbuf = (uint8_t *)buf;
CAN_CS_LOW;
SPI_transmitData(MCP2515_SPI_WRITE);
SPI_transmitData(addr);
for (i=0; i < len; i++) {
spi_transfer(sbuf[i]);
}
CAN_CS_HIGH;
}
__interrupt void USCI_A0_ISR (void)
{
switch (__even_in_range(UCA0IV,4)){
//Vector 2 - RXIFG
case 2:
//USCI_A0 TX buffer ready?
while (!SPI_getInterruptStatus(__MSP430_BASEADDRESS_USCI_A0__,
SPI_TRANSMIT_INTERRUPT
)) ;
//Transmit data to master
SPI_transmitData(__MSP430_BASEADDRESS_USCI_A0__,
transmitData
);
//Receive data from master
receiveData = SPI_receiveData(__MSP430_BASEADDRESS_USCI_A0__);
//Increment data to be transmitted
transmitData++;
break;
default: break;
}
}
//*****************************************************************************
//
// Writes a data to the CFAF128128B-0145T. This function implements the basic SPI
// interface to the LCD display.
//
//*****************************************************************************
void HAL_LCD_writeData(uint8_t data)
{
/* USCI_B0 TX buffer ready? */
while (!EUSCI_B_SPI_getInterruptStatus(LCD_EUSCI_BASE,
EUSCI_B_SPI_TRANSMIT_INTERRUPT));
SPI_transmitData(LCD_EUSCI_BASE,data);
}
uint8_t can_spi_query(uint32_t moduleInstance)
{
uint8_t ret;
CAN_CS_LOW;
SPI_transmitData(moduleInstance, 0xFF);
ret = SPI_receiveData(moduleInstance);
CAN_CS_HIGH;
return ret;
}
//*****************************************************************************
//
// Writes a command to the CFAF128128B-0145T. This function implements the basic SPI
// interface to the LCD display.
//
//*****************************************************************************
void HAL_LCD_writeCommand(uint8_t command)
{
// Set to command mode
GPIO_setOutputLowOnPin(LCD_DC_PORT, LCD_DC_PIN);
/* USCI_B0 TX buffer ready? */
while (!EUSCI_B_SPI_getInterruptStatus(LCD_EUSCI_BASE,
EUSCI_B_SPI_TRANSMIT_INTERRUPT));
SPI_transmitData(LCD_EUSCI_BASE,command);
// Set back to data mode
GPIO_setOutputHighOnPin(LCD_DC_PORT, LCD_DC_PIN);
}
void can_spi_command(uint32_t moduleInstance, uint8_t cmd)
{
CAN_CS_LOW;
SPI_transmitData(moduleInstance, cmd);
CAN_CS_HIGH;
}