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Serial.println with "?" or "!!!" causes upload to fail #2457

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Component: BootloaderThe bootloader is the program used to load the uploaded program into the microcontroller's memory Type: DuplicateAnother item already exists for this topic
@GdeBrouwer

Description

My upload to a Arduino Mega 2560 fails when I have "?" or "!!!" as shown below:
Serial.println("end of day?");
Serial.println("END OF DAY!!!");

This occurs with 1.5.7 and 1.5.8.

Here is the failed upload messages:

avrdude: Send: . [1b] . [b8] . [00] . [05] . [0e] . [06] . [80] . [00] + [2b] . [80] . [85] 
avrdude: Recv: . [1b] 
avrdude: Recv: . [b8] 
avrdude: Recv: . [00] 
avrdude: Recv: . [02] 
avrdude: Recv: . [0e] 
avrdude: Recv: . [06] 
avrdude: Recv: . [00] 
avrdude: Recv: . [a9] 
avrdude: Send: . [1b] . [b9] . [01] . [0a] . [0e] . [13] . [01] . [00] . [c1] . [0a] @ [40] L [4c] [20] . [00] . [00] e [65] n [6e] d [64] [20] o [6f] f [66] [20] d [64] a [61] y [79] ? [3f] . [00] E [45] N [4e] D [44] [20] O [4f] F [46] [20] D [44] A [41] Y [59] ! [21] ! [21] ! [21] . [00] S [53] p [70] e [65] e [65] d [64] [20] = [3d] [20] 0 [30] . [00] S [53] p [70] e [65] e [65] d [64] [20] = [3d] [20] . [00] 1 [31] . [00] S [53] a [61] n [6e] i [69] t [74] i [69] z [7a] e [65] [20] O [4f] N [4e] . [00] S [53] a [61] n [6e] i [69] t [74] i [69] z [7a] e [65] [20] O [4f] F [46] F [46] . [00] v [76] 8 [38] 8 [38] 4 [34] 8 [38] x [78] [20] . [00] C [43] [20] T [54] p [70] = [3d] . [00] [20] E [45] = [3d] . [00] [20] H [48] = [3d] . [00] [20] i [69] = [3d] . [00] [20] s [73] s [73] = [3d] . [00] [20] i [69] r [72] = [3d] . [00] [20] p [70] + [2b] = [3d] . [00] [20] p [70] - [2d] = [3d] . [00] [20] k [6b] W [57] h [68] = [3d] . [00] [20] k [6b] W [57] h [68] _ [5f] X [58] = [3d] . [00] [20] k [6b] W [57] h [68] _ [5f] S [53] = [3d] . [00] [20] k [6b] W [57] h [68] _ [5f] P [50] = [3d] . [00] [20] k [6b] W [57] h [68] _ [5f] H [48] = [3d] . [00] [20] k [6b] W [57] h [68] _ [5f] G [47] = [3d] . [00] [20] R [52] = [3d] . [00] [20] S [53] p [70] d [64] = [3d] . [00] [20] W [57] p [70] = [3d] . [00] [20] s [73] p [70] e [65] e [65] d [64] p [70] = [3d] . [00] , [2c] . [00] [20] P [50] S [53] m [6d] i [69] n [6e] = [3d] . [00] [20] P [50] S [53] m [6d] a [61] x [78] = [3d] . [00] [20] W [57] = [3d] . [00] [20] W [57] x [78] = [3d] . [00] [20] W [57] s [73] = [3d] . [00] [20] W [57] 1 [31] = [3d] . [00] [20] W [57] 2 [32] = [3d] . [00] [20] W [57] 3 [33] = [3d] . [00] [20] W [57] 4 [34] = [3d] . [00] h [68] i [69] g [67] h [68] [20] s [73] i [69] d [64] e [65] [20] c [63] l [6c] i [69] p [70] p [70] i [69] | [7c] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: ! [21] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: A [41] 
avrdude: Recv: r [72] 
avrdude: Recv: d [64] 
avrdude: Recv: u [75] 
avrdude: Recv: i [69] 
avrdude: Recv: n [6e] 
avrdude: Recv: o [6f] 
avrdude: Recv: [20] 
avrdude: Recv: e [65] 
avrdude: Recv: x [78] 
avrdude: Recv: p [70] 
avrdude: Recv: l [6c] 
avrdude: Recv: o [6f] 
avrdude: Recv: r [72] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: [20] 
avrdude: Recv: s [73] 
avrdude: Recv: t [74] 
avrdude: Recv: k [6b] 
avrdude: Recv: 5 [35] 
avrdude: Recv: 0 [30] 
avrdude: Recv: 0 [30] 
avrdude: Recv: V [56] 
avrdude: Recv: 2 [32] 
avrdude: Recv: [20] 
avrdude: Recv: b [62] 
avrdude: Recv: y [79] 
avrdude: Recv: [20] 
avrdude: Recv: M [4d] 
avrdude: Recv: L [4c] 
avrdude: Recv: S [53] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: B [42] 
avrdude: Recv: o [6f] 
avrdude: Recv: o [6f] 
avrdude: Recv: t [74] 
avrdude: Recv: l [6c] 
avrdude: Recv: o [6f] 
avrdude: Recv: a [61] 
avrdude: Recv: d [64] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: > [3e] 
avrdude: Recv: H [48] 
avrdude: Recv: u [75] 
avrdude: Recv: h [68] 
avrdude: Recv: ? [3f] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: B [42] 
avrdude: Recv: o [6f] 
avrdude: Recv: o [6f] 
avrdude: Recv: t [74] 
avrdude: Recv: l [6c] 
avrdude: Recv: o [6f] 
avrdude: Recv: a [61] 
avrdude: Recv: d [64] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: > [3e] 
avrdude: Recv: S [53] 
avrdude: Recv: [20] 
avrdude: Recv: H [48] 
avrdude: Recv: u [75] 
avrdude: Recv: h [68] 
avrdude: Recv: ? [3f] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: B [42] 
avrdude: Recv: o [6f] 
avrdude: Recv: o [6f] 
avrdude: Recv: t [74] 
avrdude: Recv: l [6c] 
avrdude: Recv: o [6f] 
avrdude: Recv: a [61] 
avrdude: Recv: d [64] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: > [3e] 
avrdude: Recv: X [58] 
avrdude: Recv: [20] 
avrdude: Recv: H [48] 
avrdude: Recv: u [75] 
avrdude: Recv: h [68] 
avrdude: Recv: ? [3f] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: B [42] 
avrdude: Recv: o [6f] 
avrdude: Recv: o [6f] 
avrdude: Recv: t [74] 
avrdude: Recv: l [6c] 
avrdude: Recv: o [6f] 
avrdude: Recv: a [61] 
avrdude: Recv: d [64] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: > [3e] 
avrdude: Recv: [20] 
avrdude: Recv: [20] 
avrdude: Recv: H [48] 
avrdude: Recv: u [75] 
avrdude: Recv: h [68] 
avrdude: Recv: ? [3f] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: B [42] 
avrdude: Recv: o [6f] 
avrdude: Recv: o [6f] 
avrdude: Recv: t [74] 
avrdude: Recv: l [6c] 
avrdude: Recv: o [6f] 
avrdude: Recv: a [61] 
avrdude: Recv: d [64] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: > [3e] 
avrdude: Recv: H [48] 
avrdude: Recv: [20] 
avrdude: Recv: H [48] 
avrdude: Recv: e [65] 
avrdude: Recv: l [6c] 
avrdude: Recv: p [70] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: 0 [30] 
avrdude: Recv: = [3d] 
avrdude: Recv: Z [5a] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: o [6f] 
avrdude: Recv: [20] 
avrdude: Recv: a [61] 
avrdude: Recv: d [64] 
avrdude: Recv: d [64] 
avrdude: Recv: r [72] 
avrdude: Recv: e [65] 
avrdude: Recv: s [73] 
avrdude: Recv: s [73] 
avrdude: Recv: [20] 
avrdude: Recv: c [63] 
avrdude: Recv: t [74] 
avrdude: Recv: r [72] 
avrdude: Recv: s [73] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: ? [3f] 
avrdude: Recv: = [3d] 
avrdude: Recv: C [43] 
avrdude: Recv: P [50] 
avrdude: Recv: U [55] 
avrdude: Recv: [20] 
avrdude: Recv: s [73] 
avrdude: Recv: t [74] 
avrdude: Recv: a [61] 
avrdude: Recv: t [74] 
avrdude: Recv: s [73] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: @ [40] 
avrdude: Recv: = [3d] 
avrdude: Recv: E [45] 
avrdude: Recv: E [45] 
avrdude: Recv: P [50] 
avrdude: Recv: R [52] 
avrdude: Recv: O [4f] 
avrdude: Recv: M [4d] 
avrdude: Recv: [20] 
avrdude: Recv: t [74] 
avrdude: Recv: e [65] 
avrdude: Recv: s [73] 
avrdude: Recv: t [74] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: B [42] 
avrdude: Recv: = [3d] 
avrdude: Recv: B [42] 
avrdude: Recv: l [6c] 
avrdude: Recv: i [69] 
avrdude: Recv: n [6e] 
avrdude: Recv: k [6b] 
avrdude: Recv: [20] 
avrdude: Recv: L [4c] 
avrdude: Recv: E [45] 
avrdude: Recv: D [44] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: E [45] 
avrdude: Recv: = [3d] 
avrdude: Recv: D [44] 
avrdude: Recv: u [75] 
avrdude: Recv: m [6d] 
avrdude: Recv: p [70] 
avrdude: Recv: [20] 
avrdude: Recv: E [45] 
avrdude: Recv: E [45] 
avrdude: Recv: P [50] 
avrdude: Recv: R [52] 
avrdude: Recv: O [4f] 
avrdude: Recv: M [4d] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: F [46] 
avrdude: Recv: = [3d] 
avrdude: Recv: D [44] 
avrdude: Recv: u [75] 
avrdude: Recv: m [6d] 
avrdude: Recv: p [70] 
avrdude: Recv: [20] 
avrdude: Recv: F [46] 
avrdude: Recv: L [4c] 
avrdude: Recv: A [41] 
avrdude: Recv: S [53] 
avrdude: Recv: H [48] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: H [48] 
avrdude: Recv: = [3d] 
avrdude: Recv: H [48] 
avrdude: Recv: e [65] 
avrdude: Recv: l [6c] 
avrdude: Recv: p [70] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: L [4c] 
avrdude: Recv: = [3d] 
avrdude: Recv: L [4c] 
avrdude: Recv: i [69] 
avrdude: Recv: s [73] 
avrdude: Recv: t [74] 
avrdude: Recv: [20] 
avrdude: Recv: I [49] 
avrdude: Recv: / [2f] 
avrdude: Recv: O [4f] 
avrdude: Recv: [20] 
avrdude: Recv: P [50] 
avrdude: Recv: o [6f] 
avrdude: Recv: r [72] 
avrdude: Recv: t [74] 
avrdude: Recv: s [73] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: Q [51] 
avrdude: Recv: = [3d] 
avrdude: Recv: Q [51] 
avrdude: Recv: u [75] 
avrdude: Recv: i [69] 
avrdude: Recv: t [74] 
avrdude: Recv: [20] 
avrdude: Recv: & [26] 
avrdude: Recv: [20] 
avrdude: Recv: j [6a] 
avrdude: Recv: u [75] 
avrdude: Recv: m [6d] 
avrdude: Recv: p [70] 
avrdude: Recv: [20] 
avrdude: Recv: t [74] 
avrdude: Recv: o [6f] 
avrdude: Recv: [20] 
avrdude: Recv: u [75] 
avrdude: Recv: s [73] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: [20] 
avrdude: Recv: p [70] 
avrdude: Recv: g [67] 
avrdude: Recv: m [6d] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: R [52] 
avrdude: Recv: = [3d] 
avrdude: Recv: D [44] 
avrdude: Recv: u [75] 
avrdude: Recv: m [6d] 
avrdude: Recv: p [70] 
avrdude: Recv: [20] 
avrdude: Recv: R [52] 
avrdude: Recv: A [41] 
avrdude: Recv: M [4d] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: V [56] 
avrdude: Recv: = [3d] 
avrdude: Recv: s [73] 
avrdude: Recv: h [68] 
avrdude: Recv: o [6f] 
avrdude: Recv: w [77] 
avrdude: Recv: [20] 
avrdude: Recv: i [69] 
avrdude: Recv: n [6e] 
avrdude: Recv: t [74] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: r [72] 
avrdude: Recv: u [75] 
avrdude: Recv: p [70] 
avrdude: Recv: t [74] 
avrdude: Recv: [20] 
avrdude: Recv: V [56] 
avrdude: Recv: e [65] 
avrdude: Recv: c [63] 
avrdude: Recv: t [74] 
avrdude: Recv: o [6f] 
avrdude: Recv: r [72] 
avrdude: Recv: s [73] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: Y [59] 
avrdude: Recv: = [3d] 
avrdude: Recv: P [50] 
avrdude: Recv: o [6f] 
avrdude: Recv: r [72] 
avrdude: Recv: t [74] 
avrdude: Recv: [20] 
avrdude: Recv: b [62] 
avrdude: Recv: l [6c] 
avrdude: Recv: i [69] 
avrdude: Recv: n [6e] 
avrdude: Recv: k [6b] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: B [42] 
avrdude: Recv: o [6f] 
avrdude: Recv: o [6f] 
avrdude: Recv: t [74] 
avrdude: Recv: l [6c] 
avrdude: Recv: o [6f] 
avrdude: Recv: a [61] 
avrdude: Recv: d [64] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: > [3e] 
avrdude: Recv: \ [5c] 
avrdude: Recv: [20] 
avrdude: Recv: H [48] 
avrdude: Recv: u [75] 
avrdude: Recv: h [68] 
avrdude: Recv: ? [3f] 
avrdude: Recv: . [0d] 
avrdude: Recv: . [0a] 
avrdude: Recv: B [42] 
avrdude: Recv: o [6f] 
avrdude: Recv: o [6f] 
avrdude: Recv: t [74] 
avrdude: Recv: l [6c] 
avrdude: Recv: o [6f] 
avrdude: Recv: a [61] 
avrdude: Recv: d [64] 
avrdude: Recv: e [65] 
avrdude: Recv: r [72] 
avrdude: Recv: > [3e]

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    Component: BootloaderThe bootloader is the program used to load the uploaded program into the microcontroller's memory Type: DuplicateAnother item already exists for this topic

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