In my case it fails at 256
I also have to disconnect stlink.
-----
for (size_t i = 0; i < 1024; i++)
{
res = api->read_mem(handle, RAM_START, 1, i, buf);
if (res < 0)
{
LOG_ERROR("fail at %d with error %d", i, res);
break;
}
}
-----
Debug: 25 2404 stlink_usb.c:500 jtag_libusb_bulk_transfer_n(): ERROR, transfer
1 failed, error -7
Error: 26 2404 main.c:227 main(): fail at 256 with error -4
---
** [tickets:#259] stlink-3 fail to read 1 byte alignment RAM**
**Status:** new
**Milestone:** 0.9.0
**Labels:** stlink
**Created:** Mon Nov 25, 2019 01:44 PM UTC by Pawel
**Last Updated:** Mon Nov 25, 2019 02:41 PM UTC
**Owner:** nobody
Hi all,
I have a problem with reading from RAM whet I set aligment to 1 byte. Strange
is that reading in 4-bytes aligment is OK.
My setup is:
Open On-Chip Debugger 0.10.0+dev-00957-g9de7d9c8 (2019-11-15-13:16)
stlink-3
stm32g431
I'm using openocd as lib.
~~~
// this is ok
res = api->read_mem(handle, RAM_START, 4, ramKb * 0x100, buf);
// here we fail (-7)
res = api->read_mem(handle, RAM_START, 1, ramKb * 0x100, buf);
~~~
and log:
Info : 10 16 stlink_usb.c:1040 stlink_usb_version(): STLINK V3J4M2 (API v3)
VID:PID 0483:374E
Debug: 11 17 stlink_usb.c:1264 stlink_usb_init_mode(): MODE: 0x01
Info : 12 19 stlink_usb.c:1072 stlink_usb_check_voltage(): Target voltage:
3.279681
Debug: 13 19 stlink_usb.c:1319 stlink_usb_init_mode(): MODE: 0x01
Debug: 14 21 stlink_usb.c:2539 stlink_dump_speed_map(): Supported clock speeds
are:
Debug: 15 21 stlink_usb.c:2542 stlink_dump_speed_map(): 24000 kHz
Debug: 16 21 stlink_usb.c:2542 stlink_dump_speed_map(): 8000 kHz
Debug: 17 21 stlink_usb.c:2542 stlink_dump_speed_map(): 3300 kHz
Debug: 18 21 stlink_usb.c:2542 stlink_dump_speed_map(): 1000 kHz
Debug: 19 21 stlink_usb.c:2542 stlink_dump_speed_map(): 200 kHz
Debug: 20 21 stlink_usb.c:2542 stlink_dump_speed_map(): 50 kHz
Debug: 21 21 stlink_usb.c:2542 stlink_dump_speed_map(): 5 kHz
Debug: 22 26 stlink_usb.c:1378 stlink_usb_init_mode(): MODE: 0x02
Debug: 23 28 stlink_usb.c:2874 stlink_usb_open(): Using TAR autoincrement: 4096
Info : 24 28 main.c:209 main(): target have 32Kb ram
Debug: 25 526269 stlink_usb.c:500 jtag_libusb_bulk_transfer_n(): ERROR,
transfer 1 failed, error -7
I am using master branch openocd:
Open On-Chip Debugger 0.10.0+dev-00957-g9de7d9c8 (2019-11-15-13:16)
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