The product is a non-isolated SPI/UART to CAN bidirectional converter module. The communication mode can be easily configured using the MODE pin. Additionally, users can refer to the parameter guide to set operation parameters through any Serial Port Helper. It is suitable for applications of industrial automation control system, home appliances, and so on.
Supports SPI/UART and CAN bidirectional conversion
SPI communication speed: up to 500kHz @non-custom mode, up to 300kHz @ custom mode
UART baud rate: 1200bps~128kbps
CAN baud rate: 5kbps~1Mbps
Transmission mode: transparent transmission, transparent transmission with ID, and custom conversion
6 sets of CAN acceptance filter settings
Operating temperature: -40℃~125℃
DESCRIPTION
Users can switch the communication mode via the MODE pin: high for SPI to CAN, low for UART to CAN.
In UART mode, the SPI interface is unavailable; similarly, in SPI mode, the UART interface cannot be used. In this case, the product can only function as an SPI slave.
When switching communication modes…
After changing the pin levels, it is necessary to pull the RST pin low to reset the product to activate the setting.
PIN DESCRIPTION
Pin
Name
Function
1
CANL
CANL pin
2
CANH
CANH pin
3
MOSI
Master output and slave input data line
4
MISO
Master input and slave output data line
5
SCK
SPI clock line
6
SSEL
SPI chip selection pin
7
CTL1
SPI master control pin1
8
CTL0
SPI master control pin0
9
MODE
Mode control pin
10
CFG
Configuration pin
11
TXD
UART: TX
12
RXD
UART: RX
13
INT
Slave feedback pin
14
RST
Reset pin
low level: reset module
15
GND
Ground
16
VCC
Power supply: 3.15V~3.6V
RESOURCES
MCU: Holtek HT66F3370H, CAN BUS A/D Flash MCU, including datasheet, package information, etc.
