AN241
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No.
Function
Description
2.
LED1~LED3 status indicator
；
3.
K1~K5 operation key
；
Specific connection control pins of HC32L136 are shown in the table below
7
Reset Key
HC32L136 reset control key
8
USB TypeB Connector
USB B connector, can supply power to EB via the USB
9
Power Switch
Switching the EB board is power from USB or battery (AA dry battery X3).
Table 1-3. CMT2310A-EB Pin Function of the Main Controller HC32L136
Pin
Function
Pin
Function
Pin
Function
Pin
Function
PB12
LCD_CS
PB13
LCD_RST
VDD
--
GND
--
PB14
LCD_RS
PB15
LCD_SDA
PB11
--
PB10
--
PC06
LCD_SCK
PC07
LCD_LED
PB02
RF_NIRQ
PB01
RF_GPIO1
PC08
--
PC09
--
PB00
RF_GPIO0
PC05
--
PA08
--
PA09
--
PC04
RF_GPIOn
PA07
RF_SDI
PA10
--
PA11
--
PA06
RF_SDO
PA05
RF_SCLK
PA12
--
PA13
SWCLK
PA04
RF_CSB
PD05
--
PD06
--
PD07
--
PD04
--
PA03
--
PA14
SWDIO
PA15
--
PA02
--
PA01
--
PC10
LED3
PC11
LED2
PA00
--
AVDD
PC12
LED1
PD02
Buzzer
GND
PC03
--
PB03
K5
PB04
K4
PC02
--
PC01
--
PB05
K3
PB06
UART_TxD
PC00
--
RSTB
RST_KEY
PB07
UART_RxD
BOOT
--
GND
--
GND
--
PB08
K2
PB09
K1
GND
--
GND
--
GND
--
VDD
--
PC13
--
VCAP
--
Note
：
1. For more information of CMT2310A-EB, please refer to its schematic diagram - CMT-RF_EB revXXX
SCH.pdf
In summary, CMT2310A-EB can be regarded as a development board with HC32L136 as the main control,
which provides a variety of user-computer interaction interfaces (LCD lattice, beeper, LED, keys, USB-to-
UART bridge, etc.). Meanwhile, CMT2310A-EM is equipped with a 10 PIN master socket, which is very
suitable for function familiarization, debugging, verification and testing of CMT2310A.
