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3598 Results for "%E3%80%8A %EC%98%88%EC%95%BD%EB%AC%B8%EC%9D%98 OIO%E2%89%A1%E2%91%A7%E2%91%A389%E2%89%A183O%E2%91%A5%E3%80%8B%EC%84%A0%EB%A6%89%EB%A0%88%EA%B9%85%EC%8A%A4%EB%A3%B8%E3%89%B9%E3%83%99grace%EB%A0%88%EA%B9%85%EC%8A%A4%EB%A3%B8%EF%BC%B3%EC%84%A0%EB%A6%89%EB%A0%88%EA%B9%85%EC%8A%A4%EB%A3%B8%EC%84%A0%EB%A6%89%EB%A0%88%EA%B9%85%EC%8A%A4%D0%B5 %D1%8F%EB%A0%88%EA%B9%85%EC%8A%A4%EB%A3%B8%EB%B9%84%EC%9A%A9superstition %EA%B0%95%EB%82%A8%EB%A0%88%EA%B9%85%EC%8A%A4%EB%A3%B8%E2%80%B2%EA%B0%95%EB%82%A8%EB%A0%88%EA%B9%85%EC%8A%A4%C2%A7%EF%BC%98fetch"

  • Z80 (CP/M) Writing to SD Card

  • Digging into SD card writes means shifting gears from the Boot BIOS source code since the Boot BIOS code only does reads. The CP/M BIOS code (CBIOS128.LST) which does the reads/writes after booting. Here's the BIOS code for writes to the SD Card: 0754...
  • Points about using an ARM uC

  • Switching over to an ARM based solution is much better than an AVR+RTC chipset solution. Been looking at the STM32F030 chip and it is a perfect fit for this application! It has the following very desirable characteristics:32.768kHz oscillator on-chip....
  • More SD Card Write Details

  • Had to dig into the FPGA code for the SD card. Using Neal Crook's documentation of Grant Searle's version (longer pedigree on the page). The status register values are: // SD_Status bit values from Neal Crook's documentation of Grant's SD card // b7...
  • Debugging

  • Debugging Need to get this project working. One problem is that the Nano does not have enough pins. So I have used a Meduino (a Mega2560 Pro Mini). Here is the schematic: Here is the PCB: The ports (P1 & P2) match the TTA8 bus. A problem with the Meduino...
  • 20230219c -- ROM test file

  • While whizzing through the code trying to scrounge verified keyboard scan codes and flags, I found some some buried treasure in the form of an undocumented test routine.  It's not that exciting -- it just fills the current file with some sample...
  • Building a CP/M System Disk

  • Building a CP/M System Disk To avoid rewriting the assembler codes for ccp, bdos and cbios so that they can co-exist in the same file. I can append the i8hex files and remove the "end of file markers". To make the hex file more readable I have changed...
  • 5 x 7 Flip Dot Display Driver

  • Display Layout (from behind, left to right) A12345 B12345 C12345 D12345 E12345 F12345 (Z123) G12345 Connection Blocks (mapping) B1 F1 A2 G2 | E3 B4 F4 A5 A1 G1 D1 F2 | F3 A4 E4 B5 Z3 C1 E1 E2 | G3 D3 D4 C5 Z2 Z1 B2 D2 | C3 C4 E5 G5 Z1 Z1 C2 A3 | B3 G4...
  • Reverse Engineering from Package Data

  • As you can see airodump-ng picked up the WiFi of the drone and also that it is running on channel 2. Next I recorded some packages. sudo airodump-ng -w JJRC_out -c 2 -bssid 10:A4:BE:2E:77:B5 wlan0mon While recording I simply used all the functions the...
  • INFORMED HEX DUMP

  • 66 03 60 4D F5 66 03 C0 SOH DE 1D 40 E5 #62 E7 41 EE 70 48 4F 52 50 43 35 33 32 34 37 36 19 06 22 06 22 SOH10 46 30 46 19 SOH42 70 40 40 40 40 40 40 30 30 31 38 30 33 35 33 32 34 37 36 4B 08 08 DC C1 C1 32 DC C1 C1 32 42 B4 42 B4 02 SOH02 02 02...