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Feature #4575

open

Build + Test GTM900 breakout board prototype

Added by laforge over 1 year ago. Updated about 1 year ago.

Status:
In Progress
Priority:
Immediate
Assignee:
Category:
-
Target version:
-
Start date:
06/02/2020
Due date:
% Done:

80%

Resolution:
Spec Reference:

Description

3 PCBs and associated components are on their way to the sysmocom office (arriving today around noon).

Pleae assemble ASAP one board for initial testing (see checklist)

Once the first board appears working, please assemble the other two.

Report any issues that require fixing in the design on the design to mschramm in #4030


Files

cp210x-customizer.png View cp210x-customizer.png 68.9 KB mschramm, 07/05/2020 03:05 PM
cp2105_silabs_defaults.txt cp2105_silabs_defaults.txt 1.8 KB roh, 07/14/2020 05:48 PM
cp2105_gtm900_roh.txt cp2105_gtm900_roh.txt 1.8 KB roh, 07/14/2020 05:48 PM
screenshot_pins_configfoo.png View screenshot_pins_configfoo.png 109 KB roh, 07/14/2020 06:08 PM
cp2105_gtm900_cp210xsmt.txt cp2105_gtm900_cp210xsmt.txt 724 Bytes incomplete config, just as value-listing roh, 07/14/2020 07:05 PM
cp2105_gtm900_roh_test.txt cp2105_gtm900_roh_test.txt 1.76 KB roh, 07/24/2020 02:52 PM
cp2105_gtm900_roh_test_gpio.txt cp2105_gtm900_roh_test_gpio.txt 1.76 KB roh, 09/17/2020 12:53 AM
cp21xx_custom_util-screenshot1.png View cp21xx_custom_util-screenshot1.png 66.2 KB mschramm, 09/17/2020 01:43 AM
cp21xx_custom_util-screenshot2.png View cp21xx_custom_util-screenshot2.png 165 KB mschramm, 09/17/2020 01:43 AM

Checklist

  • test power supply
  • test USB enumeration of CP2105
  • check if modem is responding to AT commands on UART
  • check if SIM interface appears working (e.g. AT+CIMI to read IMSI)
  • develop and test OTP config for cp2105
  • verify audio wiring

Related issues

Related to OsmocomBB - Feature #4030: design breakout board for GTM900-BStalledroh05/29/2019

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