Difference between revisions of "AXEL Lite SOM/AXEL Lite Hardware/Power and Reset/JTAG"
(→On board JTAG connector) |
(→J7 - Connector's pinout) (Tag: Visual edit) |
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{| style="border-collapse:collapse; " | {| style="border-collapse:collapse; " | ||
| − | !colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History | + | ! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History |
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| − | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Version | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Version |
| − | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Issue Date | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Issue Date |
| − | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Notes |
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| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Sep 2020 | + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |Sep 2020 |
| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|New layout documentation | + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |New layout documentation |
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|} | |} | ||
| − | <section end=History/> | + | <section end="History" /> |
__FORCETOC__ | __FORCETOC__ | ||
| − | <section begin=Body/> | + | <section begin="Body" /> |
==On board JTAG connector== | ==On board JTAG connector== | ||
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[[File:AXEL Lite-EVB-JTAG-connector.png|thumb|center| 500px|JTAG connector]] | [[File:AXEL Lite-EVB-JTAG-connector.png|thumb|center| 500px|JTAG connector]] | ||
| − | |||
{| class="wikitable" | {| class="wikitable" | ||
| Line 36: | Line 35: | ||
!Pin name | !Pin name | ||
!Function | !Function | ||
| + | !ARM-20 JTAG | ||
!Notes | !Notes | ||
|- | |- | ||
| − | |1 || DGND || - || | + | |1 || DGND || - |
| + | |4,6,8,10,12,14,16,18,20|| For example documented on [https://www2.lauterbach.com/pdf/app_arm_jtag.pdf#page=3 Lauterbach specification] | ||
|- | |- | ||
| − | |2 || JTAG_TCK || - || - | + | |2 || JTAG_TCK || - |
| + | |9|| - | ||
|- | |- | ||
| − | |3 || JTAG_TMS || - || 10K pull-up to 3V3 (BOARD_PGOOD driven signal) | + | |3 || JTAG_TMS || - |
| + | |7|| 10K pull-up to 3V3 (BOARD_PGOOD driven signal) | ||
|- | |- | ||
| − | |4 || JTAG_TDO || - || 10K pull-up to 3V3 (BOARD_PGOOD driven signal) | + | |4 || JTAG_TDO || - |
| + | |13|| 10K pull-up to 3V3 (BOARD_PGOOD driven signal) | ||
|- | |- | ||
| − | |5 || JTAG_TDI || - || 10K pull-up to 3V3 (BOARD_PGOOD driven signal) | + | |5 || JTAG_TDI || - |
| + | |5|| 10K pull-up to 3V3 (BOARD_PGOOD driven signal) | ||
|- | |- | ||
| − | |6 || JTAG_nTRST || - || 10K pull-up to 3V3 (BOARD_PGOOD driven signal) | + | |6 || JTAG_nTRST || - |
| + | |3|| 10K pull-up to 3V3 (BOARD_PGOOD driven signal) | ||
|- | |- | ||
| − | |7 || CPU_PORn || - || - | + | |7 || CPU_PORn || - |
| + | |15|| - | ||
|- | |- | ||
| − | |8 || N.C. || - || - | + | |8 || N.C. || - |
| + | ||| - | ||
|- | |- | ||
| − | |9 || N.C. || - || - | + | |9 || N.C. || - |
| + | ||| - | ||
|- | |- | ||
| − | |10 || JTAG_VREF || - || 3V3 (BOARD_PGOOD driven signal) | + | |10 || JTAG_VREF || - |
| + | |1|| 3V3 (BOARD_PGOOD driven signal) | ||
|- | |- | ||
|} | |} | ||
| − | |||
---- | ---- | ||
[[Category:AXEL Lite]] | [[Category:AXEL Lite]] | ||
Revision as of 08:39, 5 May 2021
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| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Sep 2020 | New layout documentation | |
On board JTAG connector[edit | edit source]
JTAG signals are routed to a dedicated connector on the AXEL Lite PCB.
The connector is placed on the top side of the PCB, at the upper-right corner (please see the picture below).
J7 - Connector's pinout[edit | edit source]
J7 footprint mates with Samtec FSI-110-03-G-S connector. The following table reports the connector's pinout:
| Pin# | Pin name | Function | ARM-20 JTAG | Notes |
|---|---|---|---|---|
| 1 | DGND | - | 4,6,8,10,12,14,16,18,20 | For example documented on Lauterbach specification |
| 2 | JTAG_TCK | - | 9 | - |
| 3 | JTAG_TMS | - | 7 | 10K pull-up to 3V3 (BOARD_PGOOD driven signal) |
| 4 | JTAG_TDO | - | 13 | 10K pull-up to 3V3 (BOARD_PGOOD driven signal) |
| 5 | JTAG_TDI | - | 5 | 10K pull-up to 3V3 (BOARD_PGOOD driven signal) |
| 6 | JTAG_nTRST | - | 3 | 10K pull-up to 3V3 (BOARD_PGOOD driven signal) |
| 7 | CPU_PORn | - | 15 | - |
| 8 | N.C. | - | - | |
| 9 | N.C. | - | - | |
| 10 | JTAG_VREF | - | 1 | 3V3 (BOARD_PGOOD driven signal) |
