Geehy SEMICONDUCTOR GEEHY-LINK User manual

GEEHY-LINK
Version: V1.1
User Manual

1. Overview
GEEHY-LINK is an all-in-one emulator and programmer for online debugging and
emulation of APM32 full series MCUs under Keil IDE. It supports full-speed operation,
single-step debugging, breakpoint setting, and other debugging methods.
2. Performance
Support Windows7/8/10 without drives
Support APM32 full series MCU programming
Support both SWD and JTAG programming
Power target board via a control button
High-speed USB provides a power supply
3. Electrical Parameters
Input voltage:5V Input current 500mA
Output voltage:3.3V Output current 350mA
4. Instruction
1) Connect GEEHY-LINK to the computer with a USB cable and the Device Manager

will appear on Geehy DAP USB Device as shown in Figure 1:
(Figure 1)
2) The power supply of the target board can be controlled by the keys on the tool.The
tool is not powered in the default state.Press and hold the button for 3s,the red
light will be on to power the target board; Press and hold the button again for 3s,
the red light will be off to stop the power supply.
3) Choose to use SWD or JTAG on keil.
a) Click “Debug” on the “Options for Target” , interface and then select
“CMSIS-DAP Debugger” as shown in Figure 2:

(Figure 2)
b) Click “Settings” to select mode(SWD or JTAG) and frequency, as shown in
Figures 3 and 4:
A Emulator name
B Emulator seial number
C Emulator firmware version
DSWD and JTAG selection (only keil version V5.22 or above supports JTAG)
E Maximum frequency: 10M
F IDCODE is displayed after a successful connection to the target board.
(Figure 3)

(Figure 4)
4) Enter the “Flash Download” interface and select “Programming Algorithm”. Clink
the “Add” button and add the corresponding Flash, as shown in Figure 5.
(Figure 5)