Search - jtag vhdl

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[ARM-PowerPC-ColdFire-MIPS] jtag_cpld_vhdl DL : 0: JTAG CPLD实现源代码，比用简单并口调试器快5倍以上。以前总觉得简单的并口jtag板速度太慢，特别是调试bootloader的时候，简直难以忍受。最近没什么事情，于是补习了几天vhdl，用cpld实现了一个快速的jtag转换板。cpld用epm7128stc100-15，晶振20兆，tck频率5兆。用sjf2410作测试，以前写50k的文件用时5分钟，现在则是50秒左右。tck的频率还可以加倍，但是不太稳定，而且速度的瓶颈已经不在tck这里，而在通讯上面了。 -JTAG CPLD source code than the simple parallel debugger five times faster. Before feel simple parallel port JTAG board is too slow, especially when debugging Bootloader, simply intolerable. No matter recently, so VHDL tutorial for a few days, with cpld to achieve a rapid conversion of JTAG board. Cpld with epm7128stc100-15, 20 Katherine crystal, the frequency tck 5 trillion. Sjf2410 used for testing, before the document was made with 50k at 5 minutes, now it is about 50 seconds. Tck frequencies can also doubled, but not too stable, but the rate has not tck bottleneck here, and in the above communications.
Date : 2026-01-11 Size : 2kb User : 李伟
[ARM-PowerPC-ColdFire-MIPS] jtag_logic DL : 0: Serial/Parallel converter, interfacing JTAG chain with FTDI FT245BM
Date : 2026-01-11 Size : 2kb User : yuxiaoqin
[ARM-PowerPC-ColdFire-MIPS] demo DL : 0: Flex chip implementation File: UP2FLEX JTAG jumper settings: down, down, up, up Input: Reset - FLEX_PB1 Input n - FLEX_SW switches 1 to 8 Output: Countdown - two 7-segment LEDs. Done light - decimal point on Digit1. Operation: Setup the binary input n number. Press the Reset switch. See the countdown from n down to 0 on the 7-segment LEDs. Done light lit when program terminates.-Flex chip implementation File: UP2FLEX JTAG jumper settings: down, down, up, up Input: Reset- FLEX_PB1 Input n- FLEX_SW switches 1 to 8 Output: Countdown- two 7-segment LEDs. Done light- decimal point on Digit1. Operation: Setup the binary input n number. Press the Reset switch. See the countdown from n down to 0 on the 7-segment LEDs. Done light lit when program terminates.
Date : 2026-01-11 Size : 105kb User : james
[ARM-PowerPC-ColdFire-MIPS] ARM7-ARM9-JTAG-emulator DL : 0: ARM7ARM9的jtag仿真器，用于JTAG在线仿真-ARM7ARM9 the JTAG emulator
Date : 2026-01-11 Size : 774kb User : 周谦
[ARM-PowerPC-ColdFire-MIPS] ug_virtual_jtag_design_example_2 DL : 0: 包含两的关于Virtual JTAG的应用实例，可以为Virtual JTAG操作提供借鉴。-Contains two Virtual JTAG on the application, can provide reference Virtual JTAG operation.
Date : 2026-01-11 Size : 304kb User : youthl
[ARM-PowerPC-ColdFire-MIPS] ug_virtual_jtag_design_example_1 DL : 0: 包含两的关于Virtual JTAG的应用实例，可以为Virtual JTAG操作提供借鉴。-Contains two Virtual JTAG on the application, can provide reference Virtual JTAG operation.
Date : 2026-01-11 Size : 140kb User : youthl
[ARM-PowerPC-ColdFire-MIPS] JTAG DL : 0: 详细介绍FPGA的JTAG原理和应用,主要设计Xilinx的FPGA的JTAG设计和下载方式-XilinxFPGAJTAG
Date : 2026-01-11 Size : 3.78mb User : lxb