User manual ROLAND HP-237 V1.00 MIDI IMPLEMENTATION

[. . . ] (No Data entry messages are required after RPN null). mm, ll: ignored Copyright © 2000 ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. 1 qProgram Change Status CnH 2nd byte ppH sChannel Mode Messages qReset All Controllers (Controller number 121) Status BnH 2nd byte 79H 3rd byte 00H n = MIDI channel number: 0H-FH (ch. 1-ch. 16) pp = Program number: 00H. . 2CH (prog. 1. . prog. 45) Received program change message are assigned as follows. [. . . ] Regarding the address please refer to section 3 (Parameter Address Map). Regarding the checksum please refer to section 4 (Supplementary material). n = MIDI channel number : 0H-FH (ch. 1-ch. 16) mm = upper byte of parameter number specified by RPN ll = lower byte of parameter number specified by RPN * RPN is sent through the basic channel. 3 **RPN** HP-237 can transmit Master fine tuning (RPN #1) and RPN null. After sending the master fine tune, immediately the RPN Null shall be sent. The exclusive message of HP-237 data has a model ID of 1AH, and device ID is defined by MIDI UNIT NUMBER. UNIT NUMBER is always the same as the current MIDI Tx/Rx channel. qUniversal Non-realtime System Exclusive Messages rIdentity Reply Status F0H Data byte 7EH, dev, 06H, 02H, 41H, 1AH, 00H, 03H, 02H, 00H, 01H, 00H, 00H, F7H Explanation Exclusive status ID number (universal non-realtime message) Device ID (dev: UNIT#-1) Sub ID#1 (General Information) Sub ID#2 (Identity Reply) ID number (Roland) Device family code (LSB) Device family code (MSB) Device family number code (LSB) Device family number code (MSB) Software revision level EOX (End of Exclusive) Status Byte FOH 7EH dev 06H 02H 41H 1AH 00H 03H 02H 00H 01H 00H 00H F7H * When Identity Request is received, Identity Reply message will be transmitted. +------------------------------------------------------------------------+ | key signature (kkkk) | +------------------------------------+------------------------------------------------------------------------| |temperament select|C C# D D# E F F# G G# A A# B | | (ttt) |(0)(1)(2)(3)(4)(5)(6)(7)(8)(9)(A)(B)| +==================+====================================+ | EQUAL(0) |00 01 02 03 04 05 06 07 08 09 0A 0B | |------------------------------------+----+----+----+----+----+----+----+----+----+----+----+------| | JUST (major)(1) |10 11 12 13 14 15 16 17 18 19 1A 1B | |------------------------------------+----+----+----+----+----+----+----+----+----+----+----+------| | JUST (minor)(2) |20 21 22 23 24 25 26 27 28 29 2A 2B | |------------------------------------+----+----+----+----+----+----+----+----+----+----+----+------| | MEAN TONE(3) |30 31 32 33 34 35 36 37 38 39 3A 3B | |------------------------------------+----+----+----+----+----+----+----+----+----+----+----+------| | WERCKMEISTER(4) |40 41 42 43 44 45 46 47 48 49 4A 4B | |------------------------------------+----+----+----+----+----+----+----+----+----+----+----+------| | KIRNBERGER(5) |50 51 52 53 54 55 56 57 58 59 5A 5B | |------------------------------------+----+----+----+----+----+----+----+----+----+----+----+------| | PYTHAGOREAN(6) |60 61 62 63 64 65 66 67 68 69 6A 6B | +------------------------------------+------------------------------------------------------------------------+ ( numbers are hexa_decimal ) 4 4. Supplementary material qDecimal and Hexadecimal table In MIDI documentation, data values and addresses/sizes of exclusive messages etc. are expressed as hexadecimal values for each 7 bits. The following table shows how these correspond to decimal numbers. +------------+------------++------------+------------++------------+------------++------------+------------+ | Dec. | Hex. || Dec. | Hex. || Dec. | Hex. || Dec. | Hex. | +------------+------------++------------+------------++------------+------------++------------+------------+ | 0 | 00H || 32 | 20H || 64 | 40H || 96 | 60H | | 1 | 01H || 33 | 21H || 65 | 41H || 97 | 61H | | 2 | 02H || 34 | 22H || 66 | 42H || 98 | 62H | | 3 | 03H || 35 | 23H || 67 | 43H || 99 | 63H | | 4 | 04H || 36 | 24H || 68 | 44H || 100 | 64H | | 5 | 05H || 37 | 25H || 69 | 45H || 101 | 65H | | 6 | 06H || 38 | 26H || 70 | 46H || 102 | 66H | | 7 | 07H || 39 | 27H || 71 | 47H || 103 | 67H | | 8 | 08H || 40 | 28H || 72 | 48H || 104 | 68H | | 9 | 09H || 41 | 29H || 73 | 49H || 105 | 69H | | 10 | 0AH || 42 | 2AH || 74 | 4AH || 106 | 6AH | | 11 | 0BH || 43 | 2BH || 75 | 4BH || 107 | 6BH | | 12 | 0CH || 44 | 2CH || 76 | 4CH || 108 | 6CH | | 13 | 0DH || 45 | 2DH || 77 | 4DH || 109 | 6DH | | 14 | 0EH || 46 | 2EH || 78 | 4EH || 110 | 6EH | | 15 | 0FH || 47 | 2FH || 79 | 4FH || 111 | 6FH | | 16 | 10H || 48 | 30H || 80 | 50H || 112 | 70H | | 17 | 11H || 49 | 31H || 81 | 51H || 113 | 71H | | 18 | 12H || 50 | 32H || 82 | 52H || 114 | 72H | | 19 | 13H || 51 | 33H || 83 | 53H || 115 | 73H | | 20 | 14H || 52 | 34H || 84 | 54H || 116 | 74H | | 21 | 15H || 53 | 35H || 85 | 55H || 117 | 75H | | 22 | 16H || 54 | 36H || 86 | 56H || 118 | 76H | | 23 | 17H || 55 | 37H || 87 | 57H || 119 | 77H | | 24 | 18H || 56 | 38H || 88 | 58H || 120 | 78H | | 25 | 19H || 57 | 39H || 89 | 59H || 121 | 79H | | 26 | 1AH || 58 | 3AH || 90 | 5AH || 122 | 7AH | | 27 | 1BH || 59 | 3BH || 91 | 5BH || 123 | 7BH | | 28 | 1CH || 60 | 3CH || 92 | 5CH || 124 | 7CH | | 29 | 1DH || 61 | 3DH || 93 | 5DH || 125 | 7DH | | 30 | 1EH || 62 | 3EH || 94 | 5EH || 126 | 7EH | | 31 | 1FH || 63 | 3FH || 95 | 5FH || 127 | 7FH | +------------+------------++------------+------------++------------+------------++------------+------------+ * Decimal values such as MIDI channel and program change are listed as one (1) greater than the values given in the above table. * A 7-bit byte can express data in the range of 128 steps. For data where greater precision is required, we must use two or more bytes. For example, two hexadecimal numbers aa bbH expressing two 7-bit bytes would indicate a value of aa x 128 + bb. <Example 1> What is the decimal expression of 5AH ?From the preceding table, 5AH = 90 <Example 2> What is the decimal expression of the value 12 34H given as hexadecimal for each 7 bits?From the preceding table, since 12H = 18 and 34H = 52 18 x 128 + 52 = 2356 qExample of an Exclusive message and calculating a Checksum Roland Exclusive messages (DT1) are transmitted with a checksum at the end (before F7) to make sure that the message was correctly received. The value of the checksum is determined by the address and data of the transmitted exclusive message. rHow to calculate the checksum (hexadecimal numbers are indicated by 'H') The checksum is a value derived by adding the address, size and checksum itself and inverting the lower 7 bits. [. . . ] Since EH = 14 and 08H = 08, this is a Program Change message with MIDI CH = 15, program number 08 (Strings in HP-237). <Example 3> B3 64 00 65 01 06 40 26 00 64 7F 65 7F BnH is the Control Change status, and n is the MIDI channel number. For Control Changes, the 2nd byte is the control number, and the 3rd byte is the value. [. . . ]