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kard_id_format

Eratta

It was recently found that all of the JSON strings used for Quick Kards were representing numbers as hexadecimal values. These are malformed json strings and work is under way to correct the issue. The plan is to make a sketch that will search for the malformed json strings and correct them and update the EEPROM on the Kard. If you need specific details contact tech.support@pontech.com.

Kard ID Format

Data format of I2C EEPROM which stores Kard Maker, Version, and Configuration.

Byte numberDescriptionExample
8Short SHA of JSON Header stored as ASCII stringde9f2c74
200*JSON Header, null terminated and padded{“org”:“pontech.com”,“cn”:“Drive Kard”,“rev”:“A”, …}
48User DataUser Defined

* max, null padded

Required Fields
org, cn, rev
Protected Fields
io, label

Examples

Base Format

{"org":"pontech.com","cn":"Drive Kard","rev":"1.0",...}

ISO Kard

98aac0b5{"org":"pontech.com","cn":"ISO Common Cathode","rev":"D","io":31}
a1acc9b8{"org":"pontech.com","cn":"ISO Common Anode","rev":"D","io":31}

Previously used malformed json strings:

cf59e076{"org":"pontech.com","cn":"ISO Common Cathode","rev":"D","io":0x1F}
732653c5{"org":"pontech.com","cn":"ISO Common Anode","rev":"D","io":0x1F}

Drive Kard

6e5f0d81{"org":"pontech.com","cn":"Drive Source","rev":"C","io":0}
bd0dc7a0{"org":"pontech.com","cn":"Drive Sink","rev":"C","io":0}

Previously used malformed json strings:

ae1c1716{"org":"pontech.com","cn":"Drive Source","rev":"C","io":0x00}
dc27dc34{"org":"pontech.com","cn":"Drive Sink","rev":"C","io":0x00}

Drive Ticket

9d39f6aa{"org":"pontech.com","cn":"Drive S.Sink","rev":"A","io":0}
75d2619d{"org":"pontech.com","cn":"RGBW LED Sink","rev":"A","io":0}

Big Easy

d4cba19e{"org":"pontech.com","cn":"BigEasy","rev":"C","io":0,"label":["step","dir","enable","sleep","ms3"],"i2cMask":40}
bba3c9aa{"org":"pontech.com","cn":"BigEasy","rev":"C1","io":0,"label":["step","dir","enable","sleep","ms2"],"i2cMask":40}
e659e6bd{"org":"pontech.com","cn":"BigEasy","rev":"D","io":0,"label":["step","dir","enable","ms1","ms2"],"i2cMask":80}
4c9d1381{"org":"pontech.com","cn":"BigEasy","rev":"E","io":0,"label":["step","dir","enable","ms1","ms2"],"i2cMask":82}

Previously used malformed json strings (no kards with these strings ever released into the wild):

cfaafb2a{"org":"pontech.com","cn":"BigEasy","rev":"C","io":0x00,"label":["step","dir","enable","sleep","ms3"],"i2cMask":0x28}
89865d2a{"org":"pontech.com","cn":"BigEasy","rev":"C1","io":0x00,"label":["step","dir","enable","sleep","ms2"],"i2cMask":0x28}
507256b1{"org":"pontech.com","cn":"BigEasy","rev":"D","io":0x00,"label":["step","dir","enable","ms1","ms2"],"i2cMask":0x50}
2d2457db{"org":"pontech.com","cn":"BigEasy","rev":"E","io":0x00,"label":["step","dir","enable","ms1","ms2"],"i2cMask":0x52}

DAC

{“io”:0x00,“spi”:true}

UART

{“uart”:true}

Com Kard

{“uart1a”:true,“uart1b”:true,“uart3b”:true}

4 SD Card

{“io”:0x00,“spi”:true,“label”:[“sd0”, “sd1”, “sd2”, “sd3”, “led”]}

Full Example

{“org”:“Prolinear/Pontech Inc.”,“cn”:“Drive Kard”,“rev”:1.0,“email”:“support@pontech.com”,“io”:0x00,“label”:[“step”,“dir”,“en”,“sleep”,“ms3”]}

Useful links

kard_id_format.txt · Last modified: 2019/08/17 15:04 (external edit)