joniengr
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19th November 2019, 10:07PLL only multiples by 24 or 4 ? How about getting 40 MHz using PLL from internal 8 HMz ?4 replies | 374 view(s) -
18th November 2019, 11:04Hi, I am having 16 MHz X-Tal crystal and I would like to get 40 MHz FOSC for higher baud rate. I guess PLL in PIC18F2550 can generate 4 times the...4 replies | 374 view(s)
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18th November 2019, 10:54joniengr replied to a thread "RS-232 port to transfer data to PC for analysis" in Software Problems, Hints and ReviewsI understand that MCP2221 is just a UART character transfer device which bridge or map UART to USB. The CRC is a part of protocol and can be...13 replies | 779 view(s)
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18th November 2019, 10:45This means that the nearest baud rate to 115200 with 16 MHz crystal in PIC16F876 is 16,000,000/(16*(1+7)) = 125,000, right ? where SPBRG register has...9 replies | 585 view(s)
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16th November 2019, 14:35I don't find 14.74 MHz and 921 kBaud in the chapter 10.1 of datasheet 16F876. I was using internal oscillator which limit me to 57600 baud rate. ...9 replies | 585 view(s)
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16th November 2019, 13:19joniengr replied to a thread "RS-232 port to transfer data to PC for analysis" in Software Problems, Hints and ReviewsCyclic Redundancy Check13 replies | 779 view(s)
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16th November 2019, 11:55Hi, I have tested PIC 16F876 with 57600 which works fine. However it fails at 115200. Is this a limit ? Is it possible to use 16F876 with 115200 ?9 replies | 585 view(s)
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16th November 2019, 11:51joniengr replied to a thread "RS-232 port to transfer data to PC for analysis" in Software Problems, Hints and ReviewsAnother question related to UART and RS-232. If I use MCP 2221 which is UART to USB bridge with Microcontroller. Then I need to connect Tx, Rx of the...13 replies | 779 view(s)
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11th November 2019, 09:40joniengr replied to a thread "RS-232 port to transfer data to PC for analysis" in Software Problems, Hints and ReviewsTwo more questions regarding RS-232 port and UART protocol. 1- VM111 PIC Programmer by Velleman uses RS-232 port to connect programming cable to...13 replies | 779 view(s)
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8th November 2019, 14:14joniengr replied to a thread "RS-232 port to transfer data to PC for analysis" in Software Problems, Hints and ReviewsIt is Extech EA15 Dual Input Temperature Datalogger. Is it possible or allowed to use RS-232 port with a communication protocol other than UART...13 replies | 779 view(s)
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8th November 2019, 13:50joniengr started a thread "RS-232 port to transfer data to PC for analysis" in Software Problems, Hints and ReviewsHi, I am looking for thermocouples with readers. I just found one with software support. There is a statement in the user manual / datasheet. I...13 replies | 779 view(s)
About joniengr
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- Analog Circuit Design, Electromagnetic Design and Simulation, PLD, SPLD, GAL, CPLD, FPGA Design, Microcontrollers, PCB Routing / Layout / SImulation
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