This is an old revision of the document!
Table of Contents
NUCLEO-G0B1RE
The MCU is a Cortex M0+ with 12KB Flash and 144KB RAM.
Pinout
Arduino compatible headers
PB8 D15 I2C1 SCL
PB9 D14 I2C1 SDA
AVDD
NC PD1 GND
IOREF LD4 PA5 D13 SPI1 SCK
RESET PA6 D12 SPI1 MISO
3V3 PA7 D11 SPI1 MOSI
5V PB0 D10 SPI1 CS
GND PC7 D9
GND PA9 D8
VIN B1 PC13
PA8 D7
PB14 D6
AD0 PA0 PB4 D5
AD1 PA1 PB5 D4
AD2 PA4 PB3 D3
AD3 PB1 PA10 D2
AD4 PB11/PB9 PC4 D1 USART1/3 TX
AD5 PB12/PB8 PC5 D0 USART1/3 RX
PA2 USART2_TX AF1 LPUART_TX AF6 ST-LINK
PA3 USART2_RX AF1 LPUART_RX AF6 ST-LINK
Programming
openocd -f "interface/stlink.cfg" -c "transport select hla_swd" -f "target/stm32g0x.cfg"
Open On-Chip Debugger 0.12.0-rc2+dev-00028-g9501b263e (2022-12-15-23:13)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
hla_swd
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : clock speed 2000 kHz
Info : STLINK V2J37M27 (API v2) VID:PID 0483:374B
Info : Target voltage: 3.249836
Info : [stm32g0x.cpu] Cortex-M0+ r0p1 processor detected
Info : [stm32g0x.cpu] target has 4 breakpoints, 2 watchpoints
Info : starting gdb server for stm32g0x.cpu on 3333
Info : Listening on port 3333 for gdb connections
Info : accepting 'gdb' connection on tcp/3333
[stm32g0x.cpu] halted due to debug-request, current mode: Thread
xPSR: 0x81000000 pc: 0x080016ca msp: 0x200005a0
Info : device idcode = 0x10006467 (STM32G0B/G0Cx - Rev A : 0x1000)
Info : RDP level 0 (0xAA)
Info : flash size = 512 KiB
Info : flash mode : dual-bank
Info : device idcode = 0x10006467 (STM32G0B/G0Cx - Rev A : 0x1000)
Info : RDP level 0 (0xAA)
Info : OTP size is 1024 bytes, base address is 0x1fff7000
gdb-multiarch (gdb) set arch arm The target architecture is assumed to be arm (gdb) target extended-remote localhost:3333 Remote debugging using localhost:3333 warning: No executable has been specified and target does not support determining executable automatically. Try using the "file" command. 0x080016ca in ?? () (gdb) info reg r0 0x101337 1053495 r1 0x20 32 r2 0x0 0 r3 0x0 0 r4 0x32 50 r5 0x101328 1053480 r6 0x33 51 r7 0x3 3 r8 0xffffffff -1 r9 0xffffffff -1 r10 0xffffffff -1 r11 0xffffffff -1 r12 0xf 15 sp 0x200005a0 0x200005a0 lr 0x80016cb 134223563 pc 0x80016ca 0x80016ca xPSR 0x81000000 -2130706432 msp 0x200005a0 0x200005a0 psp 0xfffffffc 0xfffffffc primask 0x0 0 basepri 0x0 0 faultmask 0x0 0 control 0x0 0 (gdb)
