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Found 3 results

  1. Joel

    Even Parity

    Using Tiva C Series TM4C123GH with Energia 1.6.10E18, Win7 platform. TivaC is connected by USB, of course . I really need to be able to set Serial2.begin(38400) to implement Even Parity [8E1, instead of 8N1] because of the fixed hardware that is being connected. There is a patch posted already for the MSP430G2553; I'm pretty sure the register arrangement for the Tiva C is vastly different. There's a register in the TM4C123GH at 0x4000:E02C (E000 offset 0x2C) which contains the command word for that UART (parity select, number of bits, enable FIFO, ESP, PENable) that needs to be modified during programming. I really don't want to impact the USB connection from the Tiva C back to the programming connection. Would greatly appreciate any help!
  2. Rickta59

    USCI patch for parity

    I was trying to port a sketch that used the Serial port with non standard UART parity and character length to Energia. I noticed that the UART port isn't setup to handle anything except 8-N-1. While the code below can't do all the combinations that are available to the atmega, it can do 7/8 bit, even/odd parity and 1/2 stop bits. I created a patch that will at least fix it for the chip I am using (msp430g2553). It will need some work for other chips. Apply the attached patch to the source of the latest Energia source tree. (as of 11/11/2015) -rick (See new optional second parameter https://www.arduino.cc/en/Serial/Begin ) parity.patch
  3. kuldeepdhaka

    PS2 Interfaced with MSP430

    i have been sucessful(somewhat) in interfacing a PS2 keyboard with MSP430. usually for about ~25 keystrokes it works perfectly. after that parity error occurs in data and data after the corrupt-data is also corrupt. im supply keyboard 5V from external source and using POT to convert 5V to 3V. communication with keyboard is at 20-25Khz and MSP430 is running at 16Mhz. thing i tried (and didnt worked :-( ): tried another keyboard. circular queue to store temp data and then timer A1 to extract and decode. note: if im able to get first n data's then why is their a problem after that. im having 4 more interrupts going on (usci0_rx (@ 9600 baud, 4Mhz), usci_tx, timerA0 ( @ 7Hz), timerA1 ( @ 500Khz )). i have a MSP430G2553IN2. text data bss dec hex filename 6604 6 342 6952 1b28 build/diy-vt100.elf total code(see below) is in diy-vt100.tar.gz i had to remove doc/ , .git/ (size was ~100MB's) schematics are not according to project right now. ps2-scancode-en.c ps2.c port2.c port2.h ps2.h diy-vt100.tar.gz
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