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Diffstat (limited to 'converter/ascii_usb/README')
| -rw-r--r-- | converter/ascii_usb/README | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/converter/ascii_usb/README b/converter/ascii_usb/README new file mode 100644 index 000000000..02fa064ed --- /dev/null +++ b/converter/ascii_usb/README @@ -0,0 +1,38 @@ +ASCII to USB keyboard protocol converter +======================================== +This converts serial console terminal into USB keyboard, tested with TRS-80 model 100 TELCOM application. +Target MCU is ATMega32u4 but other USB capable AVR will also work. + + +Hardware +-------- +Connect RX, TX and GND to UART pin of AVR. Note that you may need line driver/level shifter like MAX232 to interface high voltage of RS-232C. + + + +Build Firmware +-------------- +Configure UART setting and Just use 'make' + + $ cd ascii_usb + $ make + +Then, load the binary to MCU with your favorite programmer. + + + +Limitation +---------- +- This cannot see key up event, you cannot hold a key. +- Alt, Gui(Win/Mac) modifier key are not available. + + + +TRS-80 model 100 +---------------- +Use TELCOM program with setting: 19200bps/8bit/odd parity/1stop bit +To set this configuration push Stat(F3) and input '9801D,10'. Then push Term(F4) to connect. + + + + |