ST STM32 NUCLEO-L053R8 User Manual

Hardware layout and configuration UM1724
18/68 UM1724 Rev 14
6.2.3 Using the ST-LINK/V2-1 to program and debug the STM32 on board
To program the STM32 on the board, plug in the two jumpers on CN2, as shown in red in
Figure 8. Do not use the CN4 connector as this could disturb the communication with the
STM32 microcontroller of the STM32 Nucleo board.
Figure 8. Connecting the STM32 Nucleo board to program the on-board STM32
6.2.4 Using ST-LINK/V2-1 to program and debug an external
STM32 application
It is very easy to use the ST-LINK/V2-1 to program the STM32 on an external application.
Simply remove the two jumpers from CN2 as illustrated in
Figure 9: Using ST-LINK/V2-1 to
program the STM32 on an external application, and connect the application to the CN4
debug connector according to Table 5.
Note: SB12 NRST (target STM32 RESET) must be OFF if CN4 pin 5 is used in the external
application.
MS34378V2
CN2 jumpers ON
CN4 SWD
connector

ST STM32 NUCLEO-L053R8 Specifications

General

Microcontroller	STM32L053R8
Core	ARM Cortex-M0+
Operating Frequency	32 MHz
Flash Memory	64 KB
SRAM	8 KB
EEPROM	2 KB
GPIO Pins	51
Digital I/O Pins	51
On-board Debugger	ST-LINK/V2-1
Timers	5
Communication Interfaces	I2C, SPI, USART
Connectors	Arduino Uno V3, ST morpho
USB	USB 2.0 FS device