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soc/tools/remote/comm_uart: be sure to flush in waiting bytes before read and write

This commit is contained in:
Florent Kermarrec 2019-02-16 00:08:24 +01:00
parent d3ecdd9995
commit ff155a474d
1 changed files with 6 additions and 0 deletions
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6
litex/soc/tools/remote/comm_uart.py
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@ -38,7 +38,12 @@ class CommUART:
remaining -= written remaining -= written
pos += written pos += written
def _flush(self):
if self.port.inWaiting() > 0:
self.port.read(self.port.inWaiting())
def read(self, addr, length=None): def read(self, addr, length=None):
self._flush()
data = [] data = []
length_int = 1 if length is None else length length_int = 1 if length is None else length
self._write([self.msg_type["read"], length_int]) self._write([self.msg_type["read"], length_int])
@ -53,6 +58,7 @@ class CommUART:
return data return data
def write(self, addr, data): def write(self, addr, data):
self._flush()
data = data if isinstance(data, list) else [data] data = data if isinstance(data, list) else [data]
length = len(data) length = len(data)
offset = 0 offset = 0