hi, http://elinux.org/BeagleBoardOpenOCD reports success with using OpenOCD and the Flyswatter to establish a JTAG connection with the Beagle board. I've tried to reproduce these steps but am having some issues.
After contacting one of the authors of the http://elinux.org/BeagleBoardOpenOCD , I was directed to: https://lists.berlios.de/pipermail/openocd-development/2009-June/008256.html Key thing here was a patch to the jtag/core.c file. After applying this patch, I was able to establish a JTAG connection. Next I tried the omap3_dbginit command from a telnet connection. What I get is the following message repeated constantly. Any ideas? gu...@fred-desktop:~$ telnet localhost 4444 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Open On-Chip Debugger > scan_chain TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ---| --------------------| ---------|------------|------------|------|------|------|--------- 0 | omap3530.dsp | n | 0x00000000 | 0x00000000 | 0x26 | 0x25 | 0x3f | 0xffffffff 1 | omap3530.dap | n | 0x00000000 | 0x0b6d602f | 0x04 | 0x01 | 0x0f | 0x0f 2 | omap3530.jrc | Y | 0x0b7ae02f | 0x0b7ae02f | 0x06 | 0x01 | 0x3f | 0x3f > omap3_dbginit JTAG tap: omap3530.jrc tap/device found: 0x0b7ae02f (mfg: 0x017, part: 0xb7ae, ver: 0x0) JTAG Tap/device matched AHBAP Cached values: dp_select 0x0, ap_csw 0xa2000012, ap_tar 0xffffffff SWJ-DP STICKY ERROR Read MEM_AP_CSW 0x2800052, MEM_AP_TAR 0xe000ed00 AHBAP Cached values: dp_select 0x0, ap_csw 0xa2000012, ap_tar 0xffffffff SWJ-DP STICKY ERROR Read MEM_AP_CSW 0x2800052, MEM_AP_TAR 0xe000ed00 Block read error address 0xe000ed00, count 0x1 AHBAP Cached values: dp_select 0x10, ap_csw 0xa2000002, ap_tar 0xe000edf0 SWJ-DP STICKY ERROR Read MEM_AP_CSW 0x2800042, MEM_AP_TAR 0xe000edf0 TargetName Type Endian TapName State -- ------------------ ---------- ------ ------------------ ------------ 0* omap3.cpu cortex_m3 little omap3530.dap unknown 0x54011314 00000009 .... 0x54011314 00000009 .... AHBAP Cached values: dp_select 0x10, ap_csw 0xa2000002, ap_tar 0xe000edf0 SWJ-DP STICKY ERROR Read MEM_AP_CSW 0x2800042, MEM_AP_TAR 0xe000edf0 AHBAP Cached values: dp_select 0x10, ap_csw 0xa2000002, ap_tar 0xe000edf0 SWJ-DP STICKY ERROR fred _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
