Table of Contents
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 number | Description | Example |
|---|---|---|
| 8 | Short SHA of JSON Header stored as ASCII string | de9f2c74 |
| 200* | JSON Header, null terminated and padded | {“org”:“pontech.com”,“cn”:“Drive Kard”,“rev”:“A”, …} |
| 48 | User Data | User 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”]}