HOW TO BE USED MORE THAN ONE programmatically. SOFTSPİ1, SOFTSPİ2 LIKE.
ONLY FOR 1 SINGLE ONE...
// DAC module connections
sbit Chip_Select at LATD0_bit;
sbit SoftSpi_CLK at LATD6_bit;
sbit SoftSpi_SDI at RD2_bit;
sbit SoftSpi_SDO at LATD3_bit;
sbit Chip_Select_Direction at TRISD0_bit;
sbit SoftSpi_CLK_Direction at TRISD6_bit;
sbit SoftSpi_SDI_Direction at TRISD2_bit;
sbit SoftSpi_SDO_Direction at TRISD3_bit;
// End DAC module connections
unsigned int value;
void InitMain() {
TRISB0_bit = 1; // Set RB0 pin as input
TRISB1_bit = 1; // Set RB1 pin as input
Chip_Select = 1; // Deselect DAC
Chip_Select_Direction = 0; // Set CS# pin as Output
Soft_SPI_Init(); // Initialize Soft_SPI
}
// DAC increments (0..4095) --> output voltage (0..Vref)
void DAC_Output(unsigned int valueDAC) {
char temp;
Chip_Select = 0; // Select DAC chip
// Send High Byte
temp = (valueDAC >> & 0x0F; // Store valueDAC[11..8] to temp[3..0]
temp |= 0x30; // Define DAC setting, see MCP4921 datasheet
Soft_SPI_Write(temp); // Send high byte via Soft SPI
// Send Low Byte
temp = valueDAC; // Store valueDAC[7..0] to temp[7..0]
Soft_SPI_Write(temp); // Send low byte via Soft SPI
Chip_Select = 1; // Deselect DAC chip
}
void main() {
CHECON = 0x32;
AD1PCFG = 0xFFFF; // Configure AN pins as digital
InitMain(); // Perform main initialization
value = 2048; // When program starts, DAC gives
// the output in the mid-range
while (1) { // Endless loop
if ((RB0_bit) && (value < 4095)) { // If RB0 button is pressed
value++; // increment value
}
else {
if ((RB1_bit) && (value > 0)) { // If RB1 button is pressed
value--; // decrement value
}
}
DAC_Output(value); // Send value to DAC chip
Delay_ms(1); // Slow down key repeat pace
}
}
Increasing the number of software-SPI
General discussion on mikroC for dsPIC30/33 and PIC24.
Author
Message
Re: Increasing the number of software-SPI
#2 Post by filip » 14 Aug 2014 13:12
Hi,
Please see the following post, it can be used as an idea :
http://www.mikroe.com/forum/viewtopic.php?f=88&t=49148
Regards,
Filip.
Please see the following post, it can be used as an idea :
http://www.mikroe.com/forum/viewtopic.php?f=88&t=49148
Regards,
Filip.
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