diff options
Diffstat (limited to 'tools/pydfu.py')
| -rwxr-xr-x | tools/pydfu.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/pydfu.py b/tools/pydfu.py index 3f11de067..a33e49712 100755 --- a/tools/pydfu.py +++ b/tools/pydfu.py @@ -168,7 +168,7 @@ def write_memory(addr, buf, progress=None, progress_addr=0, progress_size=0): print ("Addr 0x%x %dKBs/%dKBs..." % (xfer_base + xfer_bytes, xfer_bytes // 1024, xfer_total // 1024)) - if progress and xfer_count % 256 == 0: + if progress and xfer_count % 2 == 0: progress(progress_addr, xfer_base + xfer_bytes - progress_addr, progress_size) @@ -176,7 +176,9 @@ def write_memory(addr, buf, progress=None, progress_addr=0, progress_size=0): set_address(xfer_base+xfer_bytes) # Send DNLOAD with fw data - chunk = min(64, xfer_total-xfer_bytes) + # the "2048" is the DFU transfer size supported by the ST DFU bootloader + # TODO: this number should be extracted from the USB config descriptor + chunk = min(2048, xfer_total-xfer_bytes) __dev.ctrl_transfer(0x21, __DFU_DNLOAD, 2, __DFU_INTERFACE, buf[xfer_bytes:xfer_bytes + chunk], __TIMEOUT) |