rp2/machine_bitstream: Set SysTick reset value.

sfe-SparkFro · dpgeorge · commit 7a78e5ae7c89 · 2024-10-15T12:18:29.000+11:00
In case it doesn't have the correct value.

Signed-off-by: Damien George &lt;damien@micropython.org&gt;
diff --git a/ports/rp2/machine_bitstream.c b/ports/rp2/machine_bitstream.c
@@ -48,6 +48,10 @@ void __time_critical_func(machine_bitstream_high_low)(mp_hal_pin_obj_t pin, uint
         }
     }
     mp_hal_pin_output(pin);
+
+    // Set systick reset value.
+    systick_hw->rvr = 0x00FFFFFF;
+
     // Enable the systick counter, source CPU clock.
     systick_hw->csr = 5;
 

Original file line number	Diff line number	Diff line change
`@@ -48,6 +48,10 @@ void __time_critical_func(machine_bitstream_high_low)(mp_hal_pin_obj_t pin, uint`
`48`	`48`	`}`
`49`	`49`	`}`
`50`	`50`	`mp_hal_pin_output(pin);`
	`51`	`+`
	`52`	`+ // Set systick reset value.`
	`53`	`+ systick_hw->rvr = 0x00FFFFFF;`
	`54`	`+`
`51`	`55`	`// Enable the systick counter, source CPU clock.`
`52`	`56`	`systick_hw->csr = 5;`
`53`	`57`