Differences
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smoothie-accessory-protocol [2017/01/25 16:21] arthur |
smoothie-accessory-protocol [2017/01/25 18:55] (current) arthur |
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| === Command Message Structure | === Command Message Structure | ||
| - | [[code]] | + | <code> |
| <Virtual Address 8bit><Command Type 8bit><Data Length 1-4byte><Command Data ...><Checksum 8bit> | <Virtual Address 8bit><Command Type 8bit><Data Length 1-4byte><Command Data ...><Checksum 8bit> | ||
| <Virtual Address>: | <Virtual Address>: | ||
| Line 98: | Line 98: | ||
| -the last block of all protocol messages | -the last block of all protocol messages | ||
| -includes all message blocks except <Checksum> itself starting with <Virtual Address> | -includes all message blocks except <Checksum> itself starting with <Virtual Address> | ||
| - | [[/code]] | + | </code> |
| === Reply Message Structure | === Reply Message Structure | ||
| - | [[code]] | + | <code> |
| <Status 8bit><Data Length 1-4byte><Data 0+byte><Checksum 8bit> | <Status 8bit><Data Length 1-4byte><Data 0+byte><Checksum 8bit> | ||
| <Status>: | <Status>: | ||
| Line 123: | Line 123: | ||
| -last block of reply | -last block of reply | ||
| -includes all blocks in the reply except the <Checksum> starting from the <Status> byte | -includes all blocks in the reply except the <Checksum> starting from the <Status> byte | ||
| - | [[/code]] | + | </code> |
| == Memory Maps | == Memory Maps | ||
| === Virtual Device 0x00 (Module Manager) Memory Map | === Virtual Device 0x00 (Module Manager) Memory Map | ||
| - | [[code]] | + | <code> |
| 0x0000 Magic Number (128bit read only) | 0x0000 Magic Number (128bit read only) | ||
| - this identifies the device as a compatible accessory and must always contain the magic value | - this identifies the device as a compatible accessory and must always contain the magic value | ||
| Line 144: | Line 144: | ||
| 0x0200 Upstream SPI Config | 0x0200 Upstream SPI Config | ||
| 0x0300 Upsteram I2C Config | 0x0300 Upsteram I2C Config | ||
| - | [[/code]] | + | </code> |
| === System Memory Map | === System Memory Map | ||
| - | [[code]] | + | <code> |
| - System Memory Maps are 128bytes | - System Memory Maps are 128bytes | ||
| - every virtual device has it's own System Memory Map for configuration and basic control | - every virtual device has it's own System Memory Map for configuration and basic control | ||
| Line 215: | Line 215: | ||
| 0x1C Queue State (4byte) | 0x1C Queue State (4byte) | ||
| - holds the number of commands currently in the queue | - holds the number of commands currently in the queue | ||
| - | [[/code]] | + | </code> |
