Mercurial > public > ostc4
annotate Documentations/dump-disc.cfg @ 328:4fe5400567e7 I2C_Improvment
Set I2C speed to 88kHz, use digital filter only and reworked idle clock recovery
The errata describes a possible problem in operation between 88kHz and 100kHz => Set speed as recommended as work around.
Based on reference implementation only one filter should be use. Choice was digital because only drawback is lag of wakeup functionality which is not used
I2C communication may be randomly interrupted e.g. by a RTE reset or firmware update => reworked recovery function to get I2C devices in idle state again (Clk and SDA HIGH)
| author | ideenmodellierer |
|---|---|
| date | Wed, 17 Jul 2019 22:42:15 +0200 |
| parents | 01cc5959f199 |
| children |
| rev | line source |
|---|---|
| 34 | 1 #! openocd -f |
| 2 # Define the prob used: | |
| 3 source [find interface/stlink-v2.cfg] | |
| 4 set WORKAREASIZE 0x8000 | |
| 5 transport select hla_swd | |
| 6 | |
| 7 # Reset options | |
| 8 set ENABLE_LOW_POWER 1 | |
| 9 set STOP_WATCHDOG 1 | |
| 10 reset_config srst_only srst_nogate connect_assert_srst | |
| 11 | |
| 12 # Seelct the right chip | |
| 13 set CHIPNAME stm32f427IIT6 | |
| 14 set CONNECT_UNDER_RESET 1 | |
| 15 source [find target/stm32f4x.cfg] | |
| 16 | |
| 17 # Allow to continue execution after a connection: | |
| 18 init_reset run | |
| 19 | |
| 20 puts "Flash banks:" | |
| 21 flash banks | |
| 22 | |
| 23 #puts "Reading FIRMWARE..." | |
| 24 # Requires OpenOCD 0.10.0 / released January 2017 ? | |
| 25 #flash dump_image CPU1-DISC-dump.hex 0x00000000 0x8000 | |
| 26 | |
| 27 #puts "Done." | |
| 28 exit |