From 92cda14f7a30f14bb3836c2369d110b2c8b4cf75 Mon Sep 17 00:00:00 2001 From: tmk Date: Fri, 3 Jan 2014 07:05:41 +0900 Subject: Add ascii_usb ASCII Serial Console terminal converter --- converter/ascii_usb/README | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 converter/ascii_usb/README (limited to 'converter/ascii_usb/README') diff --git a/converter/ascii_usb/README b/converter/ascii_usb/README new file mode 100644 index 000000000..afd2e47f7 --- /dev/null +++ b/converter/ascii_usb/README @@ -0,0 +1,33 @@ +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 drvier/level shfiter 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. + + + +Scan code +--------- +ASCII code(0x01-7F) -- cgit v1.2.3