Do not clear interrupt flag during initialization

ozersa · ozersa · commit 0eac033cf1ec · 2023-06-01T15:50:39.000+03:00
This causes issue for repeaded initialization while using BufferedSerial mode

Signed-off-by: Sadik.Ozer &lt;sadik.ozer@analog.com&gt;
diff --git a/targets/TARGET_Maxim/TARGET_MAX32660/serial_api.c b/targets/TARGET_Maxim/TARGET_MAX32660/serial_api.c
@@ -213,9 +213,6 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
             MBED_ASSERT(0);
     }
 
-    // Clear pending interrupts
-    obj->uart->int_fl = obj->uart->int_fl;
-
     // Set TX Almost Empty level to interrupt when empty
     obj->uart->ctrl1 = (MXC_F_UART_THRESH_CTRL_RX_FIFO_DEFAULT_THRESH_VAL | MXC_F_UART_THRESH_CTRL_TX_FIFO_DEFAULT_THRESH_VAL);
     
diff --git a/targets/TARGET_Maxim/TARGET_MAX32670/serial_api.c b/targets/TARGET_Maxim/TARGET_MAX32670/serial_api.c
@@ -218,9 +218,6 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
             MBED_ASSERT(0);
     }
 
-    // Clear pending interrupts
-    obj->uart->int_fl = obj->uart->int_fl;
-
     // Set TX Almost Empty level to interrupt when empty
     MXC_UART_SetRXThreshold(obj->uart, 1);
 

Original file line number	Diff line number	Diff line change
`@@ -213,9 +213,6 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)`
`213`	`213`	`MBED_ASSERT(0);`
`214`	`214`	`}`
`215`	`215`
`216`		`- // Clear pending interrupts`
`217`		`- obj->uart->int_fl = obj->uart->int_fl;`
`218`		`-`
`219`	`216`	`// Set TX Almost Empty level to interrupt when empty`
`220`	`217`	`obj->uart->ctrl1 = (MXC_F_UART_THRESH_CTRL_RX_FIFO_DEFAULT_THRESH_VAL \| MXC_F_UART_THRESH_CTRL_TX_FIFO_DEFAULT_THRESH_VAL);`
`221`	`218`
Original file line number	Diff line number	Diff line change
`@@ -218,9 +218,6 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)`
`218`	`218`	`MBED_ASSERT(0);`
`219`	`219`	`}`
`220`	`220`
`221`		`- // Clear pending interrupts`
`222`		`- obj->uart->int_fl = obj->uart->int_fl;`
`223`		`-`
`224`	`221`	`// Set TX Almost Empty level to interrupt when empty`
`225`	`222`	`MXC_UART_SetRXThreshold(obj->uart, 1);`
`226`	`223`