Mauricio Donatti
AMC7812B register map and functions (slow functions)
Revision 0:4ad7f160d354, committed 2018-05-03
- Comitter:
- mmdonatti
- Date:
- Thu May 03 19:58:54 2018 +0000
- Commit message:
- AMC7812B library - registers and slow functions
Changed in this revision
| amc7812b.cpp | Show annotated file Show diff for this revision Revisions of this file |
| amc7812b.h | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r 4ad7f160d354 amc7812b.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/amc7812b.cpp Thu May 03 19:58:54 2018 +0000
@@ -0,0 +1,89 @@
+/*******************************************************
+*
+* Texas Instruments AMC7812B library
+*
+* Author: Mauricio Donatti
+* E-mail: mauricio.donatti@lnls.br
+*
+* March 2018
+*
+*******************************************************/
+
+#include "amc7812b.h"
+
+//OLD FUNCTIONS
+//They are not used anymore - New functions inside main.cpp are more efficient
+
+/*
+void AMC_write(SPI spi, DigitalOut cs, uint8_t reg,uint8_t* data)
+{
+ cs = 0; // Select the device by seting chip select low
+ spi.write((reg<<4)|((data[1]&0xF0)>>4));
+ spi.write((data[0])|((data[1]&0xF)<<8));
+ cs = 1; // Deselect the device by seting chip select low
+}
+
+void AMC_read(SPI spi, DigitalOut cs, uint8_t reg,uint8_t* data)
+{
+ uint16_t tmp;
+ cs = 0; // Select the device by seting chip select low
+ //spi.write(reg|0x80);
+ //spi.write(0x00);
+ //spi.write(0x00);
+ spi.write((reg|0x80)<<4);
+ spi.write(0x000);
+ cs = 1; // Deselect the device by seting chip select low
+ cs = 0; // Select the device by seting chip select low
+ tmp = spi.write((reg|0x80)<<4);
+ data[1] = (tmp&0xF)<<4;
+ tmp = spi.write(0x000);
+ data[1] = data[1]|((tmp&0xF00)>>8);
+ data[0] = tmp&0xFF;
+ //data[1] = spi.write(0x000);
+ //data[0] = spi.write(0x00);
+ cs = 1; // Deselect the device by seting chip select low
+}
+
+//read_fast saves the data of the previous read_fast call
+void AMC_read_fast(SPI spi, DigitalOut cs, uint8_t reg,uint8_t* data)
+{
+ uint16_t tmp;
+
+ cs = 0; // Select the device by seting chip select low
+ tmp = spi.write((reg|0x80)<<4);
+ data[1] = (tmp&0xF)<<4;
+ tmp = spi.write(0x000);
+ data[1] = data[1]|((tmp&0xF00)>>8);
+ data[0] = tmp&0xFF;
+ //spi.write(reg|0x80);
+ //data[1] = spi.write(0x00);
+ //data[0] = spi.write(0x00);
+ cs = 1; // Deselect the device by seting chip select low
+}
+
+
+//read_fast saves the data of the previous read_fast call
+void AMC_my_read(SPI spi, DigitalOut cs, uint8_t reg,uint8_t* data)
+{
+ uint16_t tmp;
+ cs = 0; // Select the device by seting chip select low
+ //spi.write(reg|0x80);
+ //data[1] = spi.write(0x00);
+ //data[0] = spi.write(0x00);
+
+ //while (!(LPC_SSP1->SR & 2)); //if TNF-Bit = 0 (FIFO full); TNF-Bit is Bit 1 in SSPxSR
+ LPC_SSP1->DR = (reg|0x80)<<4; // write to FIFO data register
+ while( !(LPC_SSP1->SR & 4));
+ tmp = LPC_SSP1->DR; // hopefully the compiler won't optimize this
+ data[1] = (tmp&0xF)<<4;
+ //while (!(LPC_SSP1->SR & 2)); //if TNF-Bit = 0 (FIFO full); TNF-Bit is Bit 1 in SSPxSR
+ LPC_SSP1->DR = 0x000; // write to FIFO data register
+ while( !(LPC_SSP1->SR & 4));
+ //while ( (LPC_SSP1->SR & (SSPSR_BSY|SSPSR_RNE)) != SSPSR_RNE );
+ tmp = LPC_SSP1->DR; // hopefully the compiler won't optimize this
+ data[1] = data[1]|((tmp&0xF00)>>8);
+ data[0] = tmp&0xFF;
+
+ cs = 1; // Deselect the device by seting chip select low
+}
+*/
\ No newline at end of file
diff -r 000000000000 -r 4ad7f160d354 amc7812b.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/amc7812b.h Thu May 03 19:58:54 2018 +0000 @@ -0,0 +1,109 @@ +/******************************************************* +* +* Texas Instruments AMC7812B library +* +* Author: Mauricio Donatti +* E-mail: mauricio.donatti@lnls.br +* +* March 2018 +* +*******************************************************/ + +#include "mbed.h" + +//AMC7812B register map +#define LT 0x00 +#define D1 0x01 +#define D2 0x02 +#define T_CONF 0x0A +#define T_CONV 0x0B +#define D1_CORR 0x21 +#define D2_CORR 0x22 +#define ADC0 0x23 +#define ADC1 0x24 +#define ADC2 0x25 +#define ADC3 0x26 +#define ADC4 0x27 +#define ADC5 0x28 +#define ADC6 0x29 +#define ADC7 0x2A +#define ADC8 0x2B +#define ADC9 0x2C +#define ADC10 0x2D +#define ADC11 0x2E +#define ADC12 0x2F +#define ADC13 0x30 +#define ADC14 0x31 +#define ADC15 0x32 +#define DAC0 0x33 +#define DAC1 0x34 +#define DAC2 0x35 +#define DAC3 0x36 +#define DAC4 0x37 +#define DAC5 0x38 +#define DAC6 0x39 +#define DAC7 0x3A +#define DAC8 0x3B +#define DAC9 0x3C +#define DAC10 0x3D +#define DAC11 0x3E +#define DAC0_CLR 0x3F +#define DAC1_CLR 0x40 +#define DAC2_CLR 0x41 +#define DAC3_CLR 0x42 +#define DAC4_CLR 0x43 +#define DAC5_CLR 0x44 +#define DAC6_CLR 0x45 +#define DAC7_CLR 0x46 +#define DAC8_CLR 0x47 +#define DAC9_CLR 0x48 +#define DAC10_CLR 0x49 +#define DAC11_CLR 0x4A +#define GPIO 0x4B +#define CONF0 0x4C +#define CONF1 0x4D +#define ALARM 0x4E +#define STATUS 0x4F +#define ADC_CH0 0x50 +#define ADC_CH1 0x51 +#define ADC_GAIN 0x52 +#define AUTO_DAC_CLR 0x53 +#define AUTO_DAC_CLR_EN 0x54 +#define SW_DAC_CLR 0x55 +#define HW_DAC_CLR0 0x56 +#define HW_DAC_CLR1 0x57 +#define DAC_CONF 0x58 +#define DAC_GAIN 0x59 +#define IN0_HIGH_TH 0x5A +#define IN0_LOW_TH 0x5B +#define IN1_HIGH_TH 0x5C +#define IN1_LOW_TH 0x5D +#define IN2_HIGH_TH 0x5E +#define IN2_LOW_TH 0x5F +#define IN3_HIGH_TH 0x60 +#define IN3_LOW_TH 0x61 +#define LT_HIGH_TH 0x62 +#define LT_LOW_TH 0x63 +#define D1_HIGH_TH 0x64 +#define D1_LOW_TH 0x65 +#define D2_HIGH_TH 0x66 +#define D2_LOW_TH 0x67 +#define HYST0 0x68 +#define HYST1 0x69 +#define HYST2 0x6A +#define PWR_DOWN 0x6B +#define ID 0x6C +#define SW_RESET 0x7C + +//OLD FUNCTIONS +//They are not used anymore - New functions inside main.cpp are more efficient + +/* +void AMC_write(SPI spi, DigitalOut cs, uint8_t reg,uint8_t* data); + +void AMC_read(SPI spi, DigitalOut cs, uint8_t reg,uint8_t* data); + +void AMC_read_fast(SPI spi, DigitalOut cs, uint8_t reg,uint8_t* data); + +void AMC_my_read(SPI spi, DigitalOut cs, uint8_t reg,uint8_t* data); +*/