Is nanjing REN REN - study F28335 board European technology co., LTD., for the design of the colleges and universities, research institutes and small and medium-sized enterprises demand and independent research and development of products.The development board can satisfy all applications based on TMS320F28335 development, REN - study F28335 plate provides abundant secondary development interface, can design based on TMS320F28335 for you to save cost and time.At present, our products have been widely applied in numerous academy, universities, power electronics, communications, industrial, medical company, in the process of long-term customer product development using gets highly recognition and praise.
REN - F28335 learning board adopted REN - F28335 core board + REN - F28335 A merger spin-off of the base function structure, guarantee the stability of DSP can run independently, peripheral resources fully extended, on the basis of optimized structure design, pay attention to EMC.Core board adopts 6 layers PCB design, functional floor 4 layer PCB design.Electromagnetic interference resistance ability of the product performance is superior, the product can be used in industrial field.
Why choose F28335?F28335 what advantage?
TMS320F28335 type digital signal processor is a TMS320C28X series of TI company floating-point DSP controller.Compared with the previous fixed point DSP, this product is of high precision, low cost, low consumption, high performance, A peripheral integration degree is high, big data and program memory, A/D conversion more accurate fast.TMS320F28335 has the high processing capacity of 150 MHZ with 32-bit floating-point processing units, six DMA channel by ADC, McBSP and EMIF, as many as 18 PWM output of the road, there are 6 road as the specific higher precision of the PWM output of TI (HRPWM), 16 channel ADC 12.Thanks to the floating point arithmetic unit, the user can quickly write control algorithm without in dealing with the decimal consume too much time and energy on the operation, thus simplifying the software development, reduce development time and cost.
1. Using a 32-bit floating point DSP TMS320F28335, clock frequency 150 MHZ, 6.67 ns clock cycle;
2. Low power design, core voltage of 1.9 V, the I/O port voltage of 3.3 V.
3. The abundant storage design
34 k x 16 slice: RAM, Flash 256 k x 16;
Outside enlarge: RAM 256 k x 16, 512 k x 16 Flash;
4. The chip on a chip integrated peripherals
18 road PWM (including six road HRPWM);16 channel 12 bit ADC, 80 ns rapid transformation, 0 ~ 3 v range;2 channel QEP;6 channel CAP;3 channel SCI.2 channels CAN;2 channel McBSP;1 channel SPI;1 channel I2C;
5. 12 PWM signals output, each all the way with plastic and regeneration circuit;
6. 4 capture CAP signals input, each all the way with plastic and regeneration circuit;
Quadrature encoder eQEP input channel 7. 4 road, each with plastic all the way and regeneration circuit;
8. A motor control driver interface, a motor fault signal input interface, used for motor drive control;
9. A SPI synchronous serial port, a RS232 communication interface, 1 with optical coupling isolation of RS485 communication interface, one CAN communication interface, CAN be a variety of ways to realize data communication;
10. Outside enlarge no.6 5 v digital output the DO level, can be directly used to drive the relay, etc.;
11. With LCD interface and keyboard control interface, the collocation of REN - LCD&KEY extension board can realize LCD display and keyboard control functions;
12. With RTC real time clock function, can record events;
13. Is provided on the electric power monitoring and reset, manual reset, the system is reliable and stable.
1. The core board and F28335 function by F28335 base plate of A.Core board is 6 layers PCB design, bottom A 4 layer PCB design, stable and reliable performance, give full consideration to the EMC (electromagnetic interference) the ability of the products, and design rational layout, can be directly applied in the industrial measurement and control.
2. Give full consideration to the protection of the CPU, the address line and data line, the line of control, I/O ports are used the level conversion circuit, convert level 3.3 V to 5 V, do have the following three benefits:
(1) have played an important role in protection of CPU, to reduce the CPU load;
(2) to improve the driving ability of the user signal;
(3) reduce the user signal interference with the CPU;
3. PWM, CAP, QEP signal circuit design of pulse shaping and regeneration, do have the following two advantages:
(1) pulse rising along the steep absolutely, time delay is small;
(2) reducing the pulse jitter interference, improve the accuracy of the detection;
4. Each AD collection channel increased signal pretreatment circuit and effectively improve the accuracy of the AD collection.