Fix USB input/output by reloading packet limits.

The USB controller is reset during the connection process, which clears the
packet limits set in the controller at initialization time. Reload those
values when the configuration is set.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/ao_test.c b/ao_test.c
index 9a8adc3d..5d50ab83 100644
--- a/ao_test.c
+++ b/ao_test.c
@@ -21,6 +21,7 @@ struct ao_task __xdata blink_0_task;
 struct ao_task __xdata blink_1_task;
 struct ao_task __xdata wakeup_task;
 struct ao_task __xdata beep_task;
+struct ao_task __xdata echo_task;
 
 void delay(int n) __reentrant
 {
@@ -84,6 +85,19 @@ beep(void)
 }
 
 void
+echo(void)
+{
+	uint8_t	c;
+	for (;;) {
+		c = ao_usb_getchar();
+		ao_usb_putchar(c);
+		if (c == '\r')
+			ao_usb_putchar('\n');
+		ao_usb_flush();
+	}
+}
+
+void
 main(void)
 {
 	CLKCON = 0;
@@ -94,5 +108,6 @@ main(void)
 	ao_add_task(&blink_1_task, blink_1);
 	ao_add_task(&wakeup_task, wakeup);
 	ao_add_task(&beep_task, beep);
+	ao_add_task(&echo_task, echo);
 	ao_start_scheduler();
 }