switch UART_debug to ASYNC
using the synchronous HAL library causes RX overflow after 5 bytes
on bulk incoming data (e.g. pasted).
this mainly due to printing synchronously the character, but to
further prevent congestion we switch to asynchronous (e.g.
interrupt driven) communication.
The RX part works great now (no overflow), but the TX part is
malfunctioning because the HAL Async library does not buffer the
data to be transmitted and expects it to be in memory until
the transmission is complete (which printf does not do).
This change will not be reflected in Atmel START since it does not
allow to set the underlying STDIO redirect peripheral to async.
Change-Id: If18883e96f336aa9f6b11607859260da5e1503c7
diff --git a/sysmoOCTSIM/hpl/sercom/hpl_sercom.c b/sysmoOCTSIM/hpl/sercom/hpl_sercom.c
index b14e720..f235115 100644
--- a/sysmoOCTSIM/hpl/sercom/hpl_sercom.c
+++ b/sysmoOCTSIM/hpl/sercom/hpl_sercom.c
@@ -177,6 +177,8 @@
static struct _usart_async_device *_sercom6_dev = NULL;
+static struct _usart_async_device *_sercom7_dev = NULL;
+
static uint8_t _get_sercom_index(const void *const hw);
static uint8_t _sercom_get_irq_num(const void *const hw);
static void _sercom_init_irq_param(const void *const hw, void *dev);
@@ -665,6 +667,10 @@
if (hw == SERCOM6) {
_sercom6_dev = (struct _usart_async_device *)dev;
}
+
+ if (hw == SERCOM7) {
+ _sercom7_dev = (struct _usart_async_device *)dev;
+ }
}
/**
@@ -2628,6 +2634,35 @@
_sercom_usart_interrupt_handler(_sercom6_dev);
}
+/**
+ * \internal Sercom interrupt handler
+ */
+void SERCOM7_0_Handler(void)
+{
+ _sercom_usart_interrupt_handler(_sercom7_dev);
+}
+/**
+ * \internal Sercom interrupt handler
+ */
+void SERCOM7_1_Handler(void)
+{
+ _sercom_usart_interrupt_handler(_sercom7_dev);
+}
+/**
+ * \internal Sercom interrupt handler
+ */
+void SERCOM7_2_Handler(void)
+{
+ _sercom_usart_interrupt_handler(_sercom7_dev);
+}
+/**
+ * \internal Sercom interrupt handler
+ */
+void SERCOM7_3_Handler(void)
+{
+ _sercom_usart_interrupt_handler(_sercom7_dev);
+}
+
int32_t _spi_m_sync_init(struct _spi_m_sync_dev *dev, void *const hw)
{
const struct sercomspi_regs_cfg *regs = _spi_get_regs((uint32_t)hw);