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#include <main.h> |
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#include <main.h> |
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/* |
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/* |
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MPL115A1 SDN - +5V (always power on) |
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MPL115A1 SDN - +3.3V (always power on) |
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MPL115A1 CSN - PIN_C2 |
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MPL115A1 #CS - PIN_C2 |
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MPL115A1 SDO - PIN_C4 (twisted?) |
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MPL115A1 DOUT - PIN_C4 (twisted?) |
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MPL115A1 SDI - PIN_C5 (twisted?) |
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MPL115A1 DIN - PIN_C5 (twisted?) |
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MPL115A1 SCK - PIN_C3 |
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MPL115A1 SCLK - PIN_C3 |
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MPL115A1 GND - GND |
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MPL115A1 GND - GND |
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MPL115A1 VDD - +5V |
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MPL115A1 VDD - +3.3V |
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*/ |
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*/ |
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#define CSN_SPI PIN_C2 |
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#define CSN_SPI PIN_C2 |
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int8 address, uiTadc, data ; |
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int8 address, uiTadc, data ; |
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// SPI mode definitions. |
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// SPI mode definitions. |
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#define SPI_MODE_0 (SPI_L_TO_H | SPI_XMIT_L_TO_H) |
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#define SPI_MODE_0 (SPI_L_TO_H | SPI_XMIT_L_TO_H) |
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#define SPI_MODE_1 (SPI_L_TO_H) |
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#define SPI_MODE_1 (SPI_L_TO_H) |
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#define SPI_MODE_2 (SPI_H_TO_L) |
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#define SPI_MODE_2 (SPI_H_TO_L) |
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#define SPI_MODE_3 (SPI_H_TO_L | SPI_XMIT_L_TO_H) |
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#define SPI_MODE_3 (SPI_H_TO_L | SPI_XMIT_L_TO_H) |
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void main() |
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void main() |
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{ |
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{ |
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printf("Start\n\r"); |
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printf("Start \r\n"); |
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setup_spi(SPI_MASTER | SPI_MODE_0 | SPI_CLK_DIV_64); |
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setup_spi(SPI_MASTER | SPI_MODE_0 | SPI_CLK_DIV_64); |
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output_high(CSN_SPI); |
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output_high(CSN_SPI); |
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delay_ms(100); |
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delay_ms(100); |
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while(true) |
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while(true) |
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{ |
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{ |
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data = 5; //just to be sure that the value is updated |
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data = 5; //just to be sure that the value is updated |
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//Start temperature and pressure conversion |
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//Start temperature and pressure conversion |
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address = 0x24; |
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address = 0x24; |
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address &= 0x7F; |
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address &= 0x7F; |
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output_low(CSN_SPI); |
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output_low(CSN_SPI); |
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delay_ms(1); |
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delay_ms(1); |
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spi_write(address); |
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spi_write(address); |
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delay_ms(1); |
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delay_ms(1); |
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spi_write(0x00); |
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spi_write(0x00); |
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delay_ms(1); |
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delay_ms(1); |
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output_high(CSN_SPI); |
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output_high(CSN_SPI); |
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delay_ms(2); |
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delay_ms(2); |
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// get MSB for Pressure |
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// get MSB for Pressure |
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address = 0x00; |
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address = 0x00; |
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address |= 0x80; |
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address |= 0x80; |
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output_low(CSN_SPI); |
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output_low(CSN_SPI); |
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delay_ms(1); |
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delay_ms(1); |
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spi_write(address); |
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spi_write(address); |
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delay_ms(1); |
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delay_ms(1); |
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data = spi_read(0x00); |
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data = spi_read(0x00); |
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delay_ms(1); |
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delay_ms(1); |
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output_high(CSN_SPI); |
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output_high(CSN_SPI); |
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printf("%u\n\r", data); |
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printf("%u \r\n", data); |
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//uiTadc = (unsigned int) data << 8; |
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//uiTadc = (unsigned int) data << 8; |
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//printf("%u\n\r", uiTadc); |
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//printf("%u\n\r", uiTadc); |
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delay_ms(100); |
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delay_ms(100); |
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} |
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} |
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} |
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} |