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Merge pull request #8652 from fiveangle/bf2_usbcon_xonxoff

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[2.0.x] SERIAL_XON_XOFF not supported on USB-native AVR devices
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Scott Lahteine 2017-12-04 16:46:18 -06:00 committed by GitHub
parent 02dd621ac7 91b63f6d69
commit 37fff608b0
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 11 additions and 6 deletions
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12
Marlin/src/inc/Conditionals_adv.h
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@ -29,16 +29,20 @@
#define CONDITIONALS_ADV_H
#ifndef USBCON
// Define constants and variables for buffering incoming serial data.
// Use only powers of 2.
// : [0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, ...]
// Define constants and variables for buffering serial data.
// Use only 0 or powers of 2 greater than 1
// : [0, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, ...]
#ifndef RX_BUFFER_SIZE
#define RX_BUFFER_SIZE 128
#endif
// 256 is the max TX buffer climit due to uint8_t head and tail.
// 256 is the max TX buffer limit due to uint8_t head and tail
// : [0, 4, 8, 16, 32, 64, 128, 256]
#ifndef TX_BUFFER_SIZE
#define TX_BUFFER_SIZE 32
#endif
#else
// SERIAL_XON_XOFF not supported on USB-native devices
#undef SERIAL_XON_XOFF
#endif
#endif // CONDITIONALS_ADV_H

5
Marlin/src/inc/SanityCheck.h
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@ -253,17 +253,18 @@
*/
#ifndef USBCON
#if ENABLED(SERIAL_XON_XOFF) && RX_BUFFER_SIZE < 1024
#error "XON/XOFF requires RX_BUFFER_SIZE >= 1024 for reliable transfers without drops."
#error "SERIAL_XON_XOFF requires RX_BUFFER_SIZE >= 1024 for reliable transfers without drops."
#endif
#if !IS_POWER_OF_2(RX_BUFFER_SIZE) || RX_BUFFER_SIZE < 2
#error "RX_BUFFER_SIZE must be a power of 2 greater than 1."
#endif
// 256 is the max limit due to uint8_t head and tail. Use only powers of 2. (...,16,32,64,128,256)
#if TX_BUFFER_SIZE && (TX_BUFFER_SIZE < 2 || TX_BUFFER_SIZE > 256 || !IS_POWER_OF_2(TX_BUFFER_SIZE))
#error "TX_BUFFER_SIZE must be 0, a power of 2 greater than 1, and no greater than 256."
#endif
#elif ENABLED(SERIAL_XON_XOFF)
#error "SERIAL_XON_XOFF is not supported on USB-native AVR devices."
#endif
/**