troubleshooting Question
Help required to convert C++ Code to VBA in Ms Access
asked on
I need help to convert the header 1 , 2 & commandID C++ Code into VBA so that I can easily code them into a proper VBA serial Packet :
C++ codes
Header1 = The first byte of package header
Header2 = The second byte of package header
CommandID =
Example of the VBA Code for the three above C++ codes
' First two bytes of data packet are always these
' Assemble the packet up to final CRC bytes
dataString = Chr(header1) & Chr(header2) & Chr(cmdSigning) & Dec2Bin(Len(content), 4) & content
Please note the Json Part is 100% correct, its just the first three codes 1A, 5D & 02 are incorrect , that is where help is required here:
Current Dump results:
C++ codes
Header1 = The first byte of package header
0x1A
Header2 = The second byte of package header
Ox5D
CommandID =
0x 02
Example of the VBA Code for the three above C++ codes
' First two bytes of data packet are always these
Const header1 = &H1A
Const header2 = &H5D
Const cmdSigning = 2
' Assemble the packet up to final CRC bytes
dataString = Chr(header1) & Chr(header2) & Chr(cmdSigning) & Dec2Bin(Len(content), 4) & content
Please note the Json Part is 100% correct, its just the first three codes 1A, 5D & 02 are incorrect , that is where help is required here:
Current Dump results:
0000 = 1A 5D 02 00 00 07 75 7B 0D 0A 20 20 20 22 50 6F | ]u{ "Po
0010 = 73 56 65 6E 64 6F 72 22 3A 20 22 4E 65 63 74 6F | sVendor": "Necto
0020 = 72 20 50 72 69 6D 65 20 41 63 63 6F 75 6E 74 69 | r Prime Accounti
0030 = 6E 67 20 53 6F 6C 75 74 69 6F 6E 73 22 2C 0D 0A | ng Solutions",
0040 = 20 20 20 22 50 6F 73 53 6F 66 74 77 61 72 65 56 | "PosSoftwareV
0050 = 65 72 73 69 6F 6E 22 3A 20 22 32 2E 30 2E 30 2E | ersion": "2.0.0.
0060 = 31 22 2C 0D 0A 20 20 20 22 50 6F 73 4D 6F 64 65 | 1", "PosMode
0070 = 6C 22 3A 20 22 43 61 70 2D 32 30 31 37 22 2C 0D | l": "Cap-2017",
0080 = 0A 20 20 20 22 50 6F 73 53 65 72 69 61 6C 4E 75 | "PosSerialNu
0090 = 6D 62 65 72 22 3A 20 22 31 30 30 31 30 30 30 30 | mber": "10010000
00A0 = 31 38 32 39 22 2C 0D 0A 20 20 20 22 49 73 73 75 | 1829", "Issu
00B0 = 65 54 69 6D 65 22 3A 20 22 32 30 32 30 30 33 31 | eTime": "2020031
00C0 = 32 32 31 34 34 34 37 22 2C 0D 0A 20 20 20 22 54 | 2214447", "T
00D0 = 72 61 6E 73 61 63 74 69 6F 6E 54 79 70 65 22 3A | ransactionType":
00E0 = 20 30 2C 0D 0A 20 20 20 22 50 61 79 6D 65 6E 74 | 0, "Payment
00F0 = 4D 6F 64 65 22 3A 20 30 2C 0D 0A 20 20 20 22 53 | Mode": 0, "S
0100 = 61 6C 65 54 79 70 65 22 3A 20 22 22 2C 0D 0A 20 | aleType": "",
0110 = 20 20 22 4C 6F 63 61 6C 50 75 72 63 68 61 73 65 | "LocalPurchase
0120 = 4F 72 64 65 72 22 3A 20 22 22 2C 0D 0A 20 20 20 | Order": "",
0130 = 22 43 61 73 68 69 65 72 22 3A 20 22 41 64 6D 69 | "Cashier": "Admi
0140 = 6E 20 4D 61 6E 61 67 65 72 22 2C 0D 0A 20 20 20 | n Manager",
0150 = 22 42 75 79 65 72 54 50 49 4E 22 3A 20 22 22 2C | "BuyerTPIN": "",
0160 = 0D 0A 20 20 20 22 42 75 79 65 72 4E 61 6D 65 22 | "BuyerName"
0170 = 3A 20 22 22 2C 0D 0A 20 20 20 22 42 75 79 65 72 | : "", "Buyer
0180 = 54 61 78 41 63 63 6F 75 6E 74 4E 61 6D 65 22 3A | TaxAccountName":
0190 = 20 22 22 2C 0D 0A 20 20 20 22 42 75 79 65 72 41 | "", "BuyerA
01A0 = 64 64 72 65 73 73 22 3A 20 22 22 2C 0D 0A 20 20 | ddress": "",
01B0 = 20 22 42 75 79 65 72 54 65 6C 22 3A 20 22 22 2C | "BuyerTel": "",
01C0 = 0D 0A 20 20 20 22 4F 72 69 67 69 6E 61 6C 49 6E | "OriginalIn
01D0 = 76 6F 69 63 65 43 6F 64 65 22 3A 20 22 22 2C 0D | voiceCode": "",
01E0 = 0A 20 20 20 22 4F 72 69 67 69 6E 61 6C 49 6E 76 | "OriginalInv
01F0 = 6F 69 63 65 4E 75 6D 62 65 72 22 3A 20 22 22 2C | oiceNumber": "",
0200 = 0D 0A 20 20 20 22 4D 65 6D 6F 22 3A 20 22 22 2C | "Memo": "",
0210 = 0D 0A 20 20 20 22 49 74 65 6D 73 22 3A 20 5B 0D | "Items": [
0220 = 0A 20 20 20 20 20 20 7B 0D 0A 20 20 20 20 20 20 | {
0230 = 20 20 20 22 49 74 65 6D 49 64 22 3A 20 31 2C 0D | "ItemId": 1,
0240 = 0A 20 20 20 20 20 20 20 20 20 22 44 65 73 63 72 | "Descr
0250 = 69 70 74 69 6F 6E 22 3A 20 22 46 75 72 69 74 79 | iption": "Furity
0260 = 20 44 72 69 6E 6B 20 6D 6C 73 20 33 35 30 22 2C | Drink mls 350",
0270 = 0D 0A 20 20 20 20 20 20 20 20 20 22 42 61 72 43 | "BarC
0280 = 6F 64 65 22 3A 20 31 34 2C 0D 0A 20 20 20 20 20 | ode": 14,
0290 = 20 20 20 20 22 51 75 61 6E 74 69 74 79 22 3A 20 | "Quantity":
02A0 = 31 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 55 6E | 1, "Un
02B0 = 69 74 50 72 69 63 65 22 3A 20 38 32 2E 37 36 2C | itPrice": 82.76,
02C0 = 0D 0A 20 20 20 20 20 20 20 20 20 22 44 69 73 63 | "Disc
02D0 = 6F 75 6E 74 22 3A 20 30 2C 0D 0A 20 20 20 20 20 | ount": 0,
02E0 = 20 20 20 20 22 54 61 78 4C 61 62 65 6C 73 22 3A | "TaxLabels":
02F0 = 20 5B 0D 0A 20 20 20 20 20 20 20 20 20 20 20 20 | [
0300 = 22 41 22 0D 0A 20 20 20 20 20 20 20 20 20 5D 2C | "A" ],
0310 = 0D 0A 20 20 20 20 20 20 20 20 20 22 54 6F 74 61 | "Tota
0320 = 6C 41 6D 6F 75 6E 74 22 3A 20 39 36 2E 30 30 31 | lAmount": 96.001
0330 = 36 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 49 73 | 6, "Is
0340 = 54 61 78 49 6E 63 6C 75 73 69 76 65 22 3A 20 74 | TaxInclusive": t
0350 = 72 75 65 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 | rue, "
0360 = 52 52 50 22 3A 20 39 36 0D 0A 20 20 20 20 20 20 | RRP": 96
0370 = 7D 2C 0D 0A 20 20 20 20 20 20 7B 0D 0A 20 20 20 | }, {
0380 = 20 20 20 20 20 20 22 49 74 65 6D 49 64 22 3A 20 | "ItemId":
0390 = 32 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 44 65 | 2, "De
03A0 = 73 63 72 69 70 74 69 6F 6E 22 3A 20 22 4D 69 78 | scription": "Mix
03B0 = 65 64 20 46 72 75 69 74 65 20 44 72 69 6E 6B 20 | ed Fruite Drink
03C0 = 33 35 30 20 6D 6C 73 22 2C 0D 0A 20 20 20 20 20 | 350 mls",
03D0 = 20 20 20 20 22 42 61 72 43 6F 64 65 22 3A 20 31 | "BarCode": 1
03E0 = 36 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 51 75 | 6, "Qu
03F0 = 61 6E 74 69 74 79 22 3A 20 31 2C 0D 0A 20 20 20 | antity": 1,
0400 = 20 20 20 20 20 20 22 55 6E 69 74 50 72 69 63 65 | "UnitPrice
0410 = 22 3A 20 38 32 2E 37 36 2C 0D 0A 20 20 20 20 20 | ": 82.76,
0420 = 20 20 20 20 22 44 69 73 63 6F 75 6E 74 22 3A 20 | "Discount":
0430 = 30 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 54 61 | 0, "Ta
0440 = 78 4C 61 62 65 6C 73 22 3A 20 5B 0D 0A 20 20 20 | xLabels": [
0450 = 20 20 20 20 20 20 20 20 20 22 41 22 0D 0A 20 20 | "A"
0460 = 20 20 20 20 20 20 20 5D 2C 0D 0A 20 20 20 20 20 | ],
0470 = 20 20 20 20 22 54 6F 74 61 6C 41 6D 6F 75 6E 74 | "TotalAmount
0480 = 22 3A 20 39 36 2E 30 30 31 36 2C 0D 0A 20 20 20 | ": 96.0016,
0490 = 20 20 20 20 20 20 22 49 73 54 61 78 49 6E 63 6C | "IsTaxIncl
04A0 = 75 73 69 76 65 22 3A 20 74 72 75 65 2C 0D 0A 20 | usive": true,
04B0 = 20 20 20 20 20 20 20 20 22 52 52 50 22 3A 20 39 | "RRP": 9
04C0 = 36 0D 0A 20 20 20 20 20 20 7D 2C 0D 0A 20 20 20 | 6 },
04D0 = 20 20 20 7B 0D 0A 20 20 20 20 20 20 20 20 20 22 | { "
04E0 = 49 74 65 6D 49 64 22 3A 20 33 2C 0D 0A 20 20 20 | ItemId": 3,
04F0 = 20 20 20 20 20 20 22 44 65 73 63 72 69 70 74 69 | "Descripti
0500 = 6F 6E 22 3A 20 22 4F 72 61 6E 67 65 20 44 72 69 | on": "Orange Dri
0510 = 6E 6B 20 33 35 30 20 6D 6C 73 22 2C 0D 0A 20 20 | nk 350 mls",
0520 = 20 20 20 20 20 20 20 22 42 61 72 43 6F 64 65 22 | "BarCode"
0530 = 3A 20 31 33 2C 0D 0A 20 20 20 20 20 20 20 20 20 | : 13,
0540 = 22 51 75 61 6E 74 69 74 79 22 3A 20 31 2C 0D 0A | "Quantity": 1,
0550 = 20 20 20 20 20 20 20 20 20 22 55 6E 69 74 50 72 | "UnitPr
0560 = 69 63 65 22 3A 20 38 32 2E 37 36 2C 0D 0A 20 20 | ice": 82.76,
0570 = 20 20 20 20 20 20 20 22 44 69 73 63 6F 75 6E 74 | "Discount
0580 = 22 3A 20 30 2C 0D 0A 20 20 20 20 20 20 20 20 20 | ": 0,
0590 = 22 54 61 78 4C 61 62 65 6C 73 22 3A 20 5B 0D 0A | "TaxLabels": [
05A0 = 20 20 20 20 20 20 20 20 20 20 20 20 22 41 22 0D | "A"
05B0 = 0A 20 20 20 20 20 20 20 20 20 5D 2C 0D 0A 20 20 | ],
05C0 = 20 20 20 20 20 20 20 22 54 6F 74 61 6C 41 6D 6F | "TotalAmo
05D0 = 75 6E 74 22 3A 20 39 36 2E 30 30 31 36 2C 0D 0A | unt": 96.0016,
05E0 = 20 20 20 20 20 20 20 20 20 22 49 73 54 61 78 49 | "IsTaxI
05F0 = 6E 63 6C 75 73 69 76 65 22 3A 20 74 72 75 65 2C | nclusive": true,
0600 = 0D 0A 20 20 20 20 20 20 20 20 20 22 52 52 50 22 | "RRP"
0610 = 3A 20 39 36 0D 0A 20 20 20 20 20 20 7D 2C 0D 0A | : 96 },
0620 = 20 20 20 20 20 20 7B 0D 0A 20 20 20 20 20 20 20 | {
0630 = 20 20 22 49 74 65 6D 49 64 22 3A 20 34 2C 0D 0A | "ItemId": 4,
0640 = 20 20 20 20 20 20 20 20 20 22 44 65 73 63 72 69 | "Descri
0650 = 70 74 69 6F 6E 22 3A 20 22 50 69 6E 65 61 70 6C | ption": "Pineapl
0660 = 65 20 20 44 72 69 6E 6B 20 33 35 30 20 6D 6C 73 | e Drink 350 mls
0670 = 22 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 42 61 | ", "Ba
0680 = 72 43 6F 64 65 22 3A 20 31 35 2C 0D 0A 20 20 20 | rCode": 15,
0690 = 20 20 20 20 20 20 22 51 75 61 6E 74 69 74 79 22 | "Quantity"
06A0 = 3A 20 31 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 | : 1, "
06B0 = 55 6E 69 74 50 72 69 63 65 22 3A 20 38 32 2E 37 | UnitPrice": 82.7
06C0 = 36 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 44 69 | 6, "Di
06D0 = 73 63 6F 75 6E 74 22 3A 20 30 2C 0D 0A 20 20 20 | scount": 0,
06E0 = 20 20 20 20 20 20 22 54 61 78 4C 61 62 65 6C 73 | "TaxLabels
06F0 = 22 3A 20 5B 0D 0A 20 20 20 20 20 20 20 20 20 20 | ": [
0700 = 20 20 22 41 22 0D 0A 20 20 20 20 20 20 20 20 20 | "A"
0710 = 5D 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 54 6F | ], "To
0720 = 74 61 6C 41 6D 6F 75 6E 74 22 3A 20 39 36 2E 30 | talAmount": 96.0
0730 = 30 31 36 2C 0D 0A 20 20 20 20 20 20 20 20 20 22 | 016, "
0740 = 49 73 54 61 78 49 6E 63 6C 75 73 69 76 65 22 3A | IsTaxInclusive":
0750 = 20 74 72 75 65 2C 0D 0A 20 20 20 20 20 20 20 20 | true,
0760 = 20 22 52 52 50 22 3A 20 39 36 0D 0A 20 20 20 20 | "RRP": 96
0770 = 20 20 7D 0D 0A 20 20 20 5D 0D 0A 7D 38 F4 | } ]}8
Learn from the best
Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.
Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 35 Comments.
Try for 7 days”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.
Our community of experts have been thoroughly vetted for their expertise and industry experience.
The Expert of the Year award recognizes an expert who helped improve Experts Exchange in the past year through high levels of contributions and participation on site. This award is given to the expert who has achieved the highest levels of participation, while maintaining quality contributions and professionalism.
The Distinguished Expert awards are presented to the top veteran and rookie experts to earn the most points in the top 50 topics.