Replace TMS320F280025C with GX320F280025C DSP for motor drive applications

In the evolution of motor drive technology from simple brushed motor commutation to high-performance field-oriented control, the balance among microcontroller computing power, peripheral integration, and system cost has always been a core design challenge. FOC motor drive algorithms need to complete complex operations such as Clarke/Park transformation, PI regulation, space vector modulation, and position estimation within an extremely short PWM period. Domestic high-performance 32-bit DSPs are designed precisely for motor drive applications.

The GX320F280025C DSP is a fully forward-designed device featuring a self-developed 32-bit core with a main frequency of 120 MHz. The GX320F280025C integrates a variety of control peripherals and communication interfaces, offering high performance, low power consumption, and high reliability. This means developers do not need to rely on the cumbersome scaling of fixed-point mathematics and can directly write control algorithms in floating-point form, significantly shortening the development cycle. The device has already been applied in multiple fields such as motor drives, EV charging piles, photovoltaic inverters, digital power supplies, and UPS power supplies.

Main features of the GX320F280025C:

Self-developed core: 32-bit self-designed core supporting floating-point operations; operating frequency of 120 MHz; maximum execution efficiency of 100 MIPS

Operating voltage: single power supply (3.3 V)

Operating temperature: Grade A (industrial grade): -40°C to 85°C; Grade E (enhanced industrial grade): -40°C to 125°C

Memory system: 128 KB on-chip Flash (ECC protection), 24 KB on-chip RAM (ECC or parity protection)

Communication interfaces: I2C, SPI, SCI (UART), CAN, LIN, FSI, PMBUS

Analog peripherals: 2 x 4 MSPS, 12-bit ADCs, 4 DAC comparators CMPSS with 12-bit reference

High-performance peripherals: 2 configurable logic blocks (CLB), 14 enhanced PWM channels, 8 high-precision PWM channels, 3 enhanced CAPs, one of which is a high-precision CAP, 2 enhanced QEPs

Package types include LQFP48/LQFP64/LQFP80, with sizes of 7*7/10*10/12*12 mm

Operating temperature range of -40°C to 125°C