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| author | David Crocker <dcrocker@eschertech.com> | 2020-06-22 19:05:44 +0300 |
|---|---|---|
| committer | David Crocker <dcrocker@eschertech.com> | 2020-06-22 19:05:44 +0300 |
| commit | 5cf69efc8645ab51f5b79ea27099eb67dd6a716e (patch) | |
| tree | fda4e56e5f2230b6c08ac9293edefddf960f1700 /src/DuetM | |
| parent | 2327b5d7a91df0cbabc9f22035b1244f5ba69a8d (diff) | |
Got the drivers on the 5LC working properly
Diffstat (limited to 'src/DuetM')
| -rw-r--r-- | src/DuetM/Pins_DuetM.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/DuetM/Pins_DuetM.h b/src/DuetM/Pins_DuetM.h index 974a6a92..bed16211 100644 --- a/src/DuetM/Pins_DuetM.h +++ b/src/DuetM/Pins_DuetM.h @@ -123,9 +123,9 @@ constexpr uint8_t TMC22xx_UART_PINS = APINS_UART0; // We send data via a 1K series resistor. Even if we assume a 200pF load on the shared UART line, this gives a 200ns time constant, which is much less than the 2us bit time @ 500kbaud. // To write a register we need to send 8 bytes. To read a register we send 4 bytes and receive 8 bytes after a programmable delay. // So at 500kbaud it takes about 128us to write a register, and 192us+ to read a register. -// In testing I found that 500kbaud was not reliable, so now using 200kbaud. -constexpr uint32_t DriversBaudRate = 200000; -constexpr uint32_t TransferTimeout = 10; // any transfer should complete within 10 ticks @ 1ms/tick +// In testing I found that 500kbaud was not reliable, so now using 250kbaud. +constexpr uint32_t DriversBaudRate = 2500000; +constexpr uint32_t TransferTimeout = 2; // any transfer should complete within 2 ticks @ 1ms/tick constexpr uint32_t DefaultStandstillCurrentPercent = 75; constexpr Pin TMC22xxMuxPins[3] = { PortCPin(14), PortCPin(16), PortCPin(17) }; // Pins that control the UART multiplexer, LSB first |