Difference between revisions of "MITO 8M Mini SOM/MITO 8M Mini Hardware/Power and Reset/JTAG"

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! 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" |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" |1.0.0
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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" |Dec 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" |First release
 
| 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" |First release
 
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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:#ededed; padding:5px; color:#000000" |Update mating connector and signals voltage
 
 
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[[File:MITO 8M Mini-jtag-conn.png|500px|frameless|border]]
 
[[File:MITO 8M Mini-jtag-conn.png|500px|frameless|border]]
  
=== J7 - Connector's pinout ===
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== J7 - Connector's pinout ==
  
J7 footprint mates with Samtec FSI-110-03-G-S connector. The following table reports the connector's pinout:  
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On the J7 footprint can be hand soldered a header pinstrip 10x1x1.27mm connector. The following table reports the connector's pinout:  
  
 
{| class="wikitable"  
 
{| class="wikitable"  
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|3 ||NC|| - ||
 
|3 ||NC|| - ||
 
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|4 ||JTAG_TCK|| - ||internal pull-down 10k to DGND
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|4 ||JTAG_TCK|| - ||internal pull-up 10k to NVCC_3V3
 
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|5 ||JTAG_TMS|| - ||
 
|5 ||JTAG_TMS|| - ||
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|8 ||JTAG_nTRST|| - ||
 
|8 ||JTAG_nTRST|| - ||
 
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|9 ||CPU_PORn|| - ||internal pull-up 100k to NVCC_SNVS_1V8
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|9 ||CPU_PORn|| - ||internal pull-up 100k to NVCC_SNVS
 
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|10 ||NVCC_3V3|| - ||reference voltage for JTAG signals 3.3V
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|10 ||NVCC_3V3|| - ||reference voltage for JTAG signals
 
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Revision as of 15:32, 27 January 2021

History
Version Issue Date Notes
1.0.0 Dec 2020 First release



On board JTAG connector[edit | edit source]

JTAG signals are routed to a dedicated connector on the MITO 8M Mini/Nano PCB.

The connector is placed on the top side of the PCB, on the right side (please see the picture below).

MITO 8M Mini-jtag-conn.png

J7 - Connector's pinout[edit | edit source]

On the J7 footprint can be hand soldered a header pinstrip 10x1x1.27mm connector. The following table reports the connector's pinout:

Pin# Pin name Function Notes
1 DGND -
2 EEPROM_WP -
3 NC -
4 JTAG_TCK - internal pull-up 10k to NVCC_3V3
5 JTAG_TMS -
6 JTAG_TDO -
7 JTAG_TDI -
8 JTAG_nTRST -
9 CPU_PORn - internal pull-up 100k to NVCC_SNVS
10 NVCC_3V3 - reference voltage for JTAG signals