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diff --git a/docs/i2c-debugging.md b/docs/i2c-debugging.md deleted file mode 100644 index a1a56db285..0000000000 --- a/docs/i2c-debugging.md +++ /dev/null @@ -1,48 +0,0 @@ -I²C Debugging Tips -================== - -The EC codebase has functionality to help you debug I²C errors without -pulling out the scope. Some of the debug functionality is disabled by -default to save space, but can be enabled with the `CONFIG_I2C_DEBUG` -option. - -Tracing -------- - -You can use the `i2ctrace` command to monitor (ranges of) addresses: - - i2ctrace [list - | disable <id> - | enable <port> <address> - | enable <port> <address-low> <address-high>] - -For example: - - > i2ctrace enable 0 0x10 0x30 - > i2ctrace enable 0 0x40 0x50 - > i2ctrace list - id port address - -- ---- ------- - 0 0 0x10 to 0x30 - 1 0 0x40 to 0x50 - ... debug spam may follow ... - i2c: write 0:0x50 A8 - i2c: read 0:0x50 00 02 00 06 00 44 - ... - > i2ctrace disable 1 - > i2ctrace list - id port address - -- ---- ------- - 0 0 0x10 to 0x30 - -A maximum of 8 debug entries are supported at a single time. - -Note that `i2ctrace enable` will merge debug entries when possible: - - > i2ctrace enable 0 0x10 0x30 - > i2ctrace enable 0 0x40 0x50 - > i2ctrace enable 0 0x31 0x3f - > i2ctrace list - id port address - -- ---- ------- - 0 0 0x10 to 0x50 |