Atari tape based text editor in BASIC | |
VOACAP Port to Plan 9 Operating System | |
Commodore 64 multidevice emulator | |
Atari XL as usb keyboard | |
Using the Atari XL as a cw keyer | |
2017.05.06 *** Very low cost and very small cw keyer using msp430 | |
msp430g2101 / flash = 1k / ram = 128 | |
#ifndef BIG | |
const long c_a = (0b011101L << 5) + 6; | |
const long c_b = (0b0101010111L << 5) + 10; | |
const long c_c = (0b010111010111L << 5) + 12; | |
const long c_d = (0b01010111L << 5) + 8; | |
const long c_e = (0b01L << 5) + 2; | |
const long c_f = (0b0101110101L << 5) + 10; | |
//const long c_g = (0b0101110111L << 5) + 10; | |
//const long c_h = (0b01010101L << 5) + 8; | |
//const long c_i = (0b0101L << 5) + 4; | |
const long c_k = (0b0111010111L << 5) + 10; | |
const long c_l = (0b0101011101L << 5) + 10; | |
const long c_m = (0b01110111L << 5) + 8; | |
const long c_n = (0b010111L << 5) + 6; | |
//const long c_p = (0b010111011101L << 5) + 12; | |
const long c_q = (0b01110101110111L << 5) + 14; | |
const long c_r = (0b01011101L << 5) + 8; | |
const long c_s = (0b010101L << 5) + 6; | |
//const long c_u = (0b01110101L << 5) + 8; | |
//const long c_w = (0b0111011101L << 5) + 10; | |
const long c_v = (0b0111010101L << 5) + 10; | |
const long spc = (0b0000000L << 5) + 7; | |
const long c_qn = (0b0101011101110101L << 5) + 16; | |
//const long c_9 = 18 + (0b010111011101110111L << 5); | |
const long c_8 = 16 + (0b0101011101110111L << 5); | |
//const long c_7 = 14 + (0b01010101110111L << 5); | |
//const long c_6 = 12 + (0b010101010111L << 5); | |
//const long c_5 = 10 + (0b0101010101L << 5); | |
const long c_4 = 12 + (0b011101010101L << 5); | |
//const long c_3 = 14 + (0b01110111010101L << 5); | |
//const long c_2 = 16 + (0b0111011101110101L << 5); | |
const long c_1 = 18 + (0b011101110111011101L << 5); | |
const long c_0 = 20 + (0b01110111011101110111L << 5); | |
#endif | |
2016.08.28 *** Three band Analog vfo controlled transmitter | |
This is the photo of the week. A three band HF transmitter, transmitting | |
at 40m,20m,15m with a maximum power of 5 Watts. The design was heavily | |
influenced by W7ZOI published data. | |
photo | |
2015.06.29 *** FT221 computer interface | |
Interfacing my OpenBSD Notebook to my old Yaesu FT221 radio so I can talk | |
to the International Space Station using APRS. | |
photo | |
2014.01.02 *** Past work and projects | |
Past projects have covered software development in various language, RF | |
and digital electronics. The new site will show a few of them here but is | |
designed to be easier to update. Here are a few that stands out back in | |
2013 - 2014. | |
++ links | |
Homebrew spectrum analyzer | |
Direct conversion receiver | |
-----| Internet relay morsecode | ----- | |
node.ch = 16; | |
snprintf(node.myid, 16, "irmc_user"); | |
snprintf(node.port, 16, "7890"); | |
if(argc == 1) { | |
snprintf(node.host, 64, "mtc-kob.dyndns.org"); | |
snprintf(node.myid, 128, "FE (Fernan in Penang, MY) Intl. Morse Only | |
node.ch = 16; | |
} | |
if(argc > 1) snprintf(node.host, 64, argv[1]); | |
if(argc > 2) snprintf(node.myid, 128, argv[2]); | |
if(argc > 3) node.ch = atoi(argv[3]); | |
for(i = 0; i < 51; i++) c.code[i] = 0; | |
memset(&hints, 0, sizeof hints); | |
hints.ai_family = AF_UNSPEC; /* ipv4 or ipv6 */ | |
hints.ai_socktype = SOCK_DGRAM; | |
if ((rv = getaddrinfo(node.host, node.port, &hints, &servinfo)) != 0) { | |
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv)); | |
return 1; | |
} | |
original posting here | |
other historical plan9 things | |
to be continued ... | |
...items in the works | |