Functional Description - Infineon 6EDL SPI LINK User Manual

6EDL_SPI_LINK configuration dongle for 6EDL71x1 series
User guide

Functional description

4 Functional description
The purpose of the 6EDL_SPI_LINK configuration adapter is to provide an interface between a PC running the
MOTIX™ BPA Motor Control Workbench application and a target board carrying a 6EDL71x1 series smart motor
control IC.
USB
Connector
programming port
Figure 6 6EDL_SPI_LINK block diagram
Attention: The J-Link programming port located on the side of the board is used only once during
factory installation of the J-Link firmware. Never connect any circuitry to this port.
All communication between an external microcontroller and the 6EDL71x1 target device happens through an
integrated serial peripheral interface (SPI). In this case, the external MCU is the XMC1402 device located in
6EDL_SPI_LINK, which acts as the SPI master. The SPI interface reads and writes to configuration registers of
6EDL71x1, which acts as the slave. Settings can be written to the volatile RAM or permanent OTP memory. The
SPI module is based on a 4-pin configuration, which includes the following logic signals:
Table 1 SPI interface description
Connection Description
nSS (���� ̅̅̅ ) Slave select (active LOW)
SCLK Serial clock (output from master)
MISO Master in slave out
MOSI Master out slave in
MOSI on a master connects to MOSI on a slave. MISO on a master connects to MISO on a slave. Slave Select has
the same functionality as Chip Select. The connections are shown as follows:
Figure 7 SPI interface master (XMC1402) to slave (6EDL71x1)
User guide
Master MCU
XMC4200
Interface
Segger J-Link
Firmware
UART
J-Link
SPI Master (XMC1402)
SCLK
MOSI
MISO
SS
Target IC
XMC1402
Interface
6EDL_SPI_LINK
Firmware SPI
6EDL71x1 connection
nSCS
SCLK
SDO
SDI
SPI Slave (6EDL71x1)
SCLK
MOSI
MISO
SS
7
6EDL SPI
ISOLATION
Connector
V 1.0
2023-11-02