#include <aversive.h>
#include <adc_archs.h>
#include <adc_config.h>
Go to the source code of this file.
Defines | |
| #define | ADC_MODE_INT 0x0200 |
| #define | ADC_MODE_TRIGGERED 0x0400 |
| #define | ADC_MODE_10_BITS 0 |
| #define | ADC_MODE_16_BITS ADLAR_MASK_IN_CONFIG |
| #define | ADC_RESULT_SIGNED 0x1000 |
| #define | ADC_NO_CONFIG 0xFFFF |
Functions | |
| void | adc_init (void) |
| void | adc_shutdown (void) |
| void | adc_register_event (void(*f)(int16_t)) |
| void | adc_launch (uint16_t conversion_config) |
| int16_t | adc_get_value (uint16_t conversion_config) |
| int32_t | adc_get_value32 (void *conversion_config) |
Definition in file adc.h.
| #define ADC_MODE_16_BITS ADLAR_MASK_IN_CONFIG |
| #define ADC_MODE_INT 0x0200 |
Set this flag for using interruptions instead of polling. If you use this, do not call the adc_get_value() function !
Definition at line 79 of file adc.h.
Referenced by adc_launch().
| #define ADC_MODE_TRIGGERED 0x0400 |
| #define ADC_NO_CONFIG 0xFFFF |
This specifies a conversion with no config (uses the previous parameters) always use this flag alone !!
Definition at line 116 of file adc.h.
Referenced by adc_get_value().
| #define ADC_RESULT_SIGNED 0x1000 |
this flag is used internally of the module, use it only if you set manually a differential channel.
Definition at line 109 of file adc.h.
Referenced by adc_get_value(), adc_launch(), and SIGNAL().
| int16_t adc_get_value | ( | uint16_t | conversion_config | ) |
This function gets an ADC value. If a conversion has been previously started, with EXACTLY the same config (or specifying ADC_NO_CONFIG) then it waits for it to finish. Else it launches a new one with the given config, and polls the result.
This function should not be used if you use interrupts, but only can be used with triggered (or free run mode)
Definition at line 176 of file adc.c.
References adc_launch(), ADC_MODE_16_BITS, ADC_NO_CONFIG, ADC_RESULT_SIGNED, ADFR, cbi, and sbi.
Referenced by adc_get_value32().
| int32_t adc_get_value32 | ( | void * | conversion_config | ) |
Just a int32_t version for compatibility with control_system function prototypes.
Definition at line 229 of file adc.c.
References adc_get_value().
| void adc_init | ( | void | ) |
Initialisation of ADC internal registers Can be called for a wake up after a shutdown command
Definition at line 38 of file adc.c.
References ADC_PRESCALE, and cbi.
| void adc_launch | ( | uint16_t | conversion_config | ) |
Launch a conversion : this function launches a conversion with the specified configuration. The conversion_config is casted to an int.
This disables and reenables the ADC when a different channel is selected AND the new channel is a differential one. Using this trick, the ADC recalibrates, and the time for this allows the amplifier to settle.
Datasheet says : When switching to a differential gain channel, the first conversion result may have a poor accuracy due to the required settling time for the automatic offset cancellation circuitry. The user should preferably disregard the first conversion result.
Definition at line 111 of file adc.c.
References ADC_MODE_INT, ADC_MODE_TRIGGERED, ADC_RESULT_SIGNED, ADFR, cbi, MUX5_MASK_IN_CONFIG, and sbi.
Referenced by adc_get_value().
| void adc_register_event | ( | void(*)(int16_t) | f | ) |
Register callback event. The parameter function is called when the conversion is finished.
Definition at line 72 of file adc.c.
References parse_symbols::f, IRQ_LOCK, and IRQ_UNLOCK.
| void adc_shutdown | ( | void | ) |
1.5.6