To anyone who gets similar problems:
I have moved CLK_OUT to different state machine (could be generated with PWM or GPIO as well) due to synchronisation issues if it is controlled from these(capture) state machines. This is working with good performance - could possibly capture at 1MHz or more.
I have moved CLK_OUT to different state machine (could be generated with PWM or GPIO as well) due to synchronisation issues if it is controlled from these(capture) state machines. This is working with good performance - could possibly capture at 1MHz or more.
Code:
.program data_sampling.define CLK_IN 3 ;To set pin 3 for use in WAIT instruction (uses WAIT 1 GPIO not WAIT 1 PINS).define CLK_OUT 2.define PUBLIC BIT_COUNT 22.wrap_target set X, (BIT_COUNT-1) wait 1 PIN 2 ;Wait FRAME signal to go HIGH to signalize start of data frame sample_data: wait 1 gpio CLK_OUT ;Should sample on CLK_IN in pins, 1 ;[5] wait 0 gpio CLK_OUT ;Should sample on CLK_IN jmp X-- sample_data.wrapStatistics: Posted by PorinsR — Tue Feb 06, 2024 10:03 am
