News Archive (1999-2012) | 2013-current at LinuxGizmos | Current Tech News Portal |    About   

SuperH embedded Linux dev tool adds JTAG, ICE debugger

Mar 30, 2004 — by LinuxDevices Staff — from the LinuxDevices Archive — 43 views

Lineo Solutions will add support for a JTAG in-circuit emulator (ICE) debugger from Kyoto Micro Computer's (KMC) to its uLinux Elite development environment. The support, expected late April, will work with two System-on-Chips (SoCs) based on SuperH RISC cores, and several development boards from SuperH chipmaker Renesas.

According to Lineo Solutions, KMC's Partner-JET JTAG ICE debugger provides unique and strong Linux debugging functions. It can be used as an in-circuit emulator to debug hardware, the kernel, and the application stack, including applications executed in virtual memory.

KMC claims its Partner-Jet offers tripled-to-quadrupled control speed and baud rate compared with other JTAG ICE debuggers. It provides greatly increased trace memory, and a connecting interface for optional functions. It supports multi-cores and can debug multiple CPUs simultaneously. Partner-Jet also provides “the world's first complete MMU support and hardware debugging of embedded OS,” according to KMC.

Lineo Solutions says its uLinux Elite provides a pre-patched environment providing realtime extended debugging. The company expects Partner-Jet's “fast interface” to make real-time debugging “even smoother.” The company also touts a special display style that it claims simplifies checking interrupt occurrence/response processing status or its time measurement, and performance status including each Realtime thread's CPU occupying time.

The Lineo Solutions development environment will be based on its uLinux Elite/BSP, and will support the Renesas SH7751R, a highly integrated 32-bit RISC microprocessor based on a SuperH RISC CPU core and targeting low-power multimedia appliances, telematics, and networking devices. It will also support the SH7760 'Camelot,' a low-cost and high-integration system-on-chip processor supporting clock rates up to 200MHz and targeting next generation automotive telematics products.

The environment will work with KMC's Partner-Jet JTAG ICE debugger, on Renesas development boards such as the RTS7751R2D Consumer Electronics Edition 2D graphics board, targeting portable and car video players, wireless TV-phones, point-of-sales terms, and broadcasting systems for buildings, aircraft, and trains, and the MS7760CP01P Consumer Electronics Edition audio board targeting handheld terminals, point-of-sale (POS) devices, and industrial applications.

“Lineo has been exchanging technical information with KMC as well as tool collaboration in the past,” said Tatsuya Takeuchi, CTO, Lineo Solutions, Inc. “As we establish stronger partnership with KMC, we are able to provide with even more efficient and easy-to-use Linux development environment, and it is a great satisfaction to us. I believe that the collaboration of Lineo and KMC products for Renesas's latest SH CPU board has a lot to offer the developers on a worldwide basis.”

This article was originally published on and has been donated to the open source community by QuinStreet Inc. Please visit for up-to-date news and articles about Linux and open source.

Comments are closed.