sys64738
/
blackmagic
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Merge pull request #252 from UweBonnes/stm32_mem 

stm32_mem.py: Set address before writing to inhibit bootloader overwr…
This commit is contained in:
Gareth McMullin 2017-09-06 14:49:07 +12:00 committed by GitHub
parent 0fe746feca 1be9c6e9c5
commit a648967b9e
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
scripts/stm32_mem.py
View File

@ -39,6 +39,16 @@ def stm32_erase(dev, addr):
if status.bState == dfu.STATE_DFU_DOWNLOAD_IDLE:
break
def stm32_set_address(dev, addr):
set_address_cmd = struct.pack("<BL", CMD_SETADDRESSPOINTER, addr)
dev.download(0, set_address_cmd)
while True:
status = dev.get_status()
if status.bState == dfu.STATE_DFU_DOWNLOAD_BUSY:
sleep(status.bwPollTimeout / 1000.0)
if status.bState == dfu.STATE_DFU_DOWNLOAD_IDLE:
break
def stm32_write(dev, data):
dev.download(2, data)
while True:
@ -120,6 +130,11 @@ if __name__ == "__main__":
except:
print "\nErase Timed out\n"
break
try:
stm32_set_address(dfudev, addr)
except:
print "\nSet Address Timed out\n"
break
stm32_write(dfudev, bin[:1024])
bin = bin[1024:]