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Hi. I decided, that I will just add one COOLRUNNER-2 CPLD in the system. It has read protection and user code. Main system will be build on cheap FPGA, without security, but COOLRUNNER-2 will be there, just as security IC, also it can handle some important peripheral functions, what don't need...
Thanks for the "device DNA" thing, I did not known that.
I'm planning to make electronic device, based on FPGA or CPLD IC.
I'm afraid that some Chinese "company" can steal my design, and start selling it ten times cheaper than me.
I want to use serial numbers, for protection.
I was thinking to...
Hello.
Can someone tell me, what FPGA or CPLD ICs have unique, embedded, OTP, serial number.
SN, what can be checked by VHDL code. SN what can't be re-writed.
(new serial number for every IC)
I want to secure my design by using this option.
Best Regards
Thanks Klaus, but as I said, I was thinking to find a solution, what will not require extra resetable counter. My main counter is deeply integrated in the system, it is halted sometimes, resets in some situations. If I will create extra counter, I will need to keep in mind that extra counter all...
Hello. Please help me with this VHDL code.
I need to get pulse, with duration of one clock cycle, in every exact period of time.
For example, my oscillator is 50MHz, I have counter in my system ,signal "count".
To get one clk in every 0.5sec, I use this code:
pulse <= '1' when ( count=...
Hi. I also have been searching for cheap machine for a long time.
I did not bought it, because I wasted my money.
First you need to decide, how many reels you need in the machine at the same time. And, do you need 0402 and 0201.
That TM220, has something like 20 reels, this is useless. As...
Hi.
I will explain my problem simply.
I'm trying to get summary of 4-bit vectors in one, 8-bit vector.
signal cnt1,cnt2,cnt3,cnt4,cnt5 : STD_LOGIC_VECTOR (3 downto 0);
signal count : STD_LOGIC_VECTOR (7 downto 0);
cnt1 <= "0000";
cnt2 <= "0000";
cnt3 <= "0000";
cnt4 <= "0001"...
Hello.
I think they made so, because FPGA don't have enough current on IO pins, to pull down so much I2C devices at ones.
In your project, 3 i2c devices should be ok to connect straight to FPGA pins.
Join together all SDA, all SCL, put two hardware 2k pullup resistors, and connect this to FPGA...
Hello.
So I'm designing board with FTDI FT2232D IC and some external logic.
One port of FTDI will be configured for RS232, and second as 245FIFO, for JTAG programming.
I want to know, if it will be possible to exclude the additional oscillator, for the logic, and use clock signal from FTDI...
Hi
The only HW trojan I know, is a keyboard logger. I have made one myself five years ago, when I was working at one company.. I did this to get administrator password for internet access :) .
It connects between keyboard and PC, saves all the data to eeprom. When you type a "magic word", it...
Hello,
So I want to connect SATA to VIRTEX-5 RocketIO Transceiver.
Like I understand, it is best to use dedicated differential oscillator connected to MGTREFCLKN/MGTREFCLKP pins.
1) I'm having trouble to choose the oscillator frequency.
* Is it suppose to be exactly 150MHz or 75MHz?
* Is it...
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