First version of Capture implementation for Raspberry Pico using the PIO. Based on https://github.com/raspberrypi/pico-examples/blob/master/pio/logic_analyser/logic_analyser.c. More...
#include <capture_raspberry_pico.h>
Inheritance diagram for logic_analyzer::PicoCapturePIO:
Public Member Functions | |
| PicoCapturePIO () | |
| Default Constructor. | |
| virtual void | capture () |
| starts the capturing of the data | |
| void | cancel () |
| cancels the capturing which is ccurrently in progress | |
| virtual void | captureAll () |
| Used to test the speed. | |
| unsigned long | runtimeUs () |
| provides the runtime in microseconds from the capturing start to when the data is available | |
| float | frequencyMeasured () |
| Provides the measured capturing frequency. | |
| float | maxFrequency (int warmup=1, int repeat=2) |
| float | divider () |
 Public Member Functions inherited from logic_analyzer::AbstractCapture | |
| AbstractCapture () | |
| Default Constructor. | |
| ~AbstractCapture () | |
| Destructor. | |
| LogicAnalyzer & | logicAnalyzer () |
| Provides access to the LogicAnalyzer. | |
| virtual PinReader & | pinReader () |
| Provides access to the PinReader. | |
| virtual void | setStatus (Status status) |
| Sets the status. | |
Protected Member Functions | |
| void | start () |
| starts the processing | |
| float | calculateDivider (uint32_t frequecy_value_hz) |
| determines the divider value | |
| void | arm () |
| intitialize the PIO More... | |
| void | dump () |
| Dumps the result to PuleView (SUMP software) | |
| void | waitForResult () |
| Wait for result and update run_time_us and buffer available. | |
| Protected Member Functions inherited from logic_analyzer::AbstractCapture | |
| virtual void | setLogicAnalyzer (LogicAnalyzer &la) |
Protected Attributes | |
| PIO | pio = pio0 |
| uint | sm = 0 |
| uint | dma_chan = 0 |
| uint | pin_base |
| uint | pin_count |
| uint32_t | n_samples |
| uint32_t | n_transfers |
| size_t | capture_size_words |
| uint | trigger_pin |
| bool | trigger_level |
| float | divider_value |
| uint64_t | frequecy_value |
| float | max_frequecy_value = -1.0 |
| bool | abort = false |
| unsigned long | start_time |
| unsigned long | run_time_us |
| float | test_duty_cycle |
| int | test_pin =-1 |
| Protected Attributes inherited from logic_analyzer::AbstractCapture | |
| LogicAnalyzer * | logic_analyzer_ptr = nullptr |
Detailed Description
First version of Capture implementation for Raspberry Pico using the PIO. Based on https://github.com/raspberrypi/pico-examples/blob/master/pio/logic_analyser/logic_analyser.c.
- Copyright
- GPLv3
Member Function Documentation
◆ arm()
|
inlineprotected |
intitialize the PIO
arms the logic analyzer
TODO proper trigger support pio_sm_exec(pio, sm, pio_encode_wait_gpio(trigger_level, trigger_pin));
The documentation for this class was generated from the following file:
