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Changed reaction for uart DMA buffer overruns: In the previous version a DMA was not restarted in case the read pointer is in the chunk which should be filled next. In normal operation this should never happen, in special cases, like debugging, it may occure. In case of an overrun the data may be already outdated and can be discarded. Because of this the new handling of a buffer overflow is to set the read pointer to the start of the chunk => the read function will start with the latest received data. Not yet processed data will be discarded.
author Ideenmodellierer
date Sun, 08 Mar 2026 21:04:36 +0100
parents 01cc5959f199
children
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#! openocd -f
# Define the prob used:
source [find interface/stlink-v2.cfg]
set WORKAREASIZE 0x8000
transport select hla_swd

# Reset options
set ENABLE_LOW_POWER 1
set STOP_WATCHDOG 1
reset_config srst_only srst_nogate connect_assert_srst

# Seelct the right chip
set CHIPNAME stm32f427IIT6
set CONNECT_UNDER_RESET 1
source [find target/stm32f4x.cfg]

# Allow to continue execution after a connection:
init_reset run

puts "Flash banks:"
flash banks

#puts "Reading FIRMWARE..."
# Requires OpenOCD 0.10.0 / released January 2017 ?
#flash dump_image CPU1-DISC-dump.hex 0x00000000 0x8000

#puts "Done."
exit