comparison: content/hp34970a_4.rst
content/hp34970a_4.rst
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| 8 :series: HP 34970A repair | 8 :series: HP 34970A repair |
| 9 :series_index: 4 | 9 :series_index: 4 |
| 10 | 10 |
| 11 | 11 |
| 12 After a summer pause, I'm back on my HP34970A replair project. In | 12 After a summer pause, I'm back on my HP34970A replair project. In |
| 13 `the previous post in this series <{filename}/hp34970a_3.rst>`_, I've | 13 `the previous post in this series <{static}/hp34970a_3.rst>`_, I've |
| 14 started to reverse ingineer the serial protocol between the CPU board | 14 started to reverse ingineer the serial protocol between the CPU board |
| 15 and the fonrt panel, and implement a prototype of replacement display. | 15 and the fonrt panel, and implement a prototype of replacement display. |
| 16 | 16 |
| 17 | 17 |
| 18 OLED display | 18 OLED display |
| 22 that would fit in the front panel assembly. It's a `blue 256x64 OLED | 22 that would fit in the front panel assembly. It's a `blue 256x64 OLED |
| 23 display`_ drived by a SSD1322 controler. | 23 display`_ drived by a SSD1322 controler. |
| 24 | 24 |
| 25 .. _`blue 256x64 OLED display`: http://www.buydisplay.com/default/oled-3-2-inch-displays-module-companies-with-driver-circuit-blue-on-black | 25 .. _`blue 256x64 OLED display`: http://www.buydisplay.com/default/oled-3-2-inch-displays-module-companies-with-driver-circuit-blue-on-black |
| 26 | 26 |
| 27 .. image:: {filename}/images/hp34970a/oled_module.jpg | 27 .. image:: {static}/images/hp34970a/oled_module.jpg |
| 28 :alt: 3"2 blue OLED module used as a replacement display for the HP34970A. | 28 :alt: 3"2 blue OLED module used as a replacement display for the HP34970A. |
| 29 | 29 |
| 30 My first problem was to drive the display from my Nucleo board. I | 30 My first problem was to drive the display from my Nucleo board. I |
| 31 couldn't find graphic library that worked directly. I was already | 31 couldn't find graphic library that worked directly. I was already |
| 32 using the UniGraphic_ library with the small TFT display, so I decided | 32 using the UniGraphic_ library with the small TFT display, so I decided |
| 69 .. _`LCD class`: https://developer.mbed.org/teams/GraphicsDisplay/code/UniGraphic/file/tip/Display/LCD.h | 69 .. _`LCD class`: https://developer.mbed.org/teams/GraphicsDisplay/code/UniGraphic/file/tip/Display/LCD.h |
| 70 .. _SSD1306: https://developer.mbed.org/teams/GraphicsDisplay/code/UniGraphic/file/tip/Inits/SSD1306.h | 70 .. _SSD1306: https://developer.mbed.org/teams/GraphicsDisplay/code/UniGraphic/file/tip/Inits/SSD1306.h |
| 71 .. _GraphicDisplay: https://developer.mbed.org/teams/GraphicsDisplay/code/UniGraphic/file/tip/Graphics/GraphicsDisplay.h | 71 .. _GraphicDisplay: https://developer.mbed.org/teams/GraphicsDisplay/code/UniGraphic/file/tip/Graphics/GraphicsDisplay.h |
| 72 .. _`poorly written sample C code`: http://www.buydisplay.com/download/democode/ER-OLEDM032-1_DemoCode.txt | 72 .. _`poorly written sample C code`: http://www.buydisplay.com/download/democode/ER-OLEDM032-1_DemoCode.txt |
| 73 | 73 |
| 74 .. image:: {filename}/images/hp34970a/oled.jpg | 74 .. image:: {static}/images/hp34970a/oled.jpg |
| 75 :alt: The replacement 3"2 blue OLED module for the HP34970A. | 75 :alt: The replacement 3"2 blue OLED module for the HP34970A. |
| 76 | 76 |
| 77 | 77 |
| 78 | 78 |
| 79 Improving the serial sniffer | 79 Improving the serial sniffer |
| 119 .. _BufferedSerial: https://developer.mbed.org/users/sam_grove/code/BufferedSerial/ | 119 .. _BufferedSerial: https://developer.mbed.org/users/sam_grove/code/BufferedSerial/ |
| 120 | 120 |
| 121 I was almost ready to use 2 microcontrollers for the job: one to sniff | 121 I was almost ready to use 2 microcontrollers for the job: one to sniff |
| 122 and interpret the serial communication and one to drive the display. | 122 and interpret the serial communication and one to drive the display. |
| 123 | 123 |
| 124 .. image:: {filename}/images/hp34970a/poc_oled.jpg | 124 .. image:: {static}/images/hp34970a/poc_oled.jpg |
| 125 :alt: Improvment of the POC based on the Nucleo F446RE and using a blue OLED module. | 125 :alt: Improvment of the POC based on the Nucleo F446RE and using a blue OLED module. |
| 126 | 126 |
| 127 Improving the tasks | 127 Improving the tasks |
| 128 =================== | 128 =================== |
| 129 | 129 |
