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| en:projekte:ovi40-sdr:aufbautipps-ui-pcb [30.10.2017 16:28] – peter_77 | en:projekte:ovi40-sdr:aufbautipps-ui-pcb [07.02.2018 06:06] (current) – df9ts_user | ||
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| + | {{tag> | ||
| ====== In General ====== | ====== In General ====== | ||
| - | 2do... | + | |
| + | SMD components are a reality in electronic gear since at least 15 years. Refusing to use SMD would mean refusing to accept reality. Soldering SMD components is quite different from soldering wired components. But soldering SMD is by far " | ||
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| So the I40 UI pcb should have the male connector strips on it. Its very useful to keep that rule which makes testing with the RF boards of different owners very easy. If you use a 24LC1025 type serial EEPROM fit R101. For all other EEPROM versions leave it out. | So the I40 UI pcb should have the male connector strips on it. Its very useful to keep that rule which makes testing with the RF boards of different owners very easy. If you use a 24LC1025 type serial EEPROM fit R101. For all other EEPROM versions leave it out. | ||
| - | ===== Preparing the 3.2" LCD display | + | ===== 3.2" LCD is now obsolete - standard LCD of OVI40 becomes 3.5" |
| - | The LCD display needs to be "treated" | + | |
| - | The supporting pcb must be cut at the upper, bottom | + | 3.5" |
| - | {{: | + | |
| - | On the left side where the soldering holes were cut off, we have the potential danger that copper strips from the pcb can be possibly shorten by the metal frame of the panel. This can easily be avoided | + | |
| - | To place the tape lift the panel approximately 0.5mm very carefully with a cutter knife and place the scotch tape under it. Fold it over the pcb edge. | + | |
| - | If you do not have an LCD with double line connector strips at the right end, you need to place the connector strips with the long side of the pins from above (!) into the soldering holes. Solder them into place from the bottom side. | + | |
| - | This way you do not need to remove the plastic carrier afterwards which may damage the panel connectors. | + | |
| - | The short ends of the connector strip pins on the upper (plastic) side need to be cut off to finalize this step. | + | |
| - | Special attention need to be payed here to the very sensitive flat ribbon cable to not damage it. A damage of the cable will most likely end up in totaling the LCD. | + | |
| - | Attention should also be payed to not use too much solder to avoid little " | + | |
| ===== Detailed photos ===== | ===== Detailed photos ===== | ||
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| One picture says it all - The following photos show the fully populated UHSDR I40 UI pcb.: | One picture says it all - The following photos show the fully populated UHSDR I40 UI pcb.: | ||
| - | {{: | + | Pictures coming soon! |
| - | {{: | + | |
| - | {{: | + | |
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| If not, supply voltage should be removed immediately and the pcb be checked for possible errors. | If not, supply voltage should be removed immediately and the pcb be checked for possible errors. | ||
| If all is fine, connect the small USB connector to a PC. | If all is fine, connect the small USB connector to a PC. | ||
| - | Under Windows OS you instantly hear the typical chime for new USB components and the taskbar shows an //STM in DFU mode// in the information bubble. Linux is a bit more "silent" | + | Under Windows OS you instantly hear the typical chime for new USB components and the taskbar shows an //STM in DFU mode// in the information bubble. |
| - | Linux proofs | + | |
| - | If yes, bootloader and firmware can be flashed with: | + | If all is fine, bootloader and firmware can be flashed with: |
| Bootloader: //dfu-util -d -R -a 0 0483:df11 -D Pfad-zur/ | Bootloader: //dfu-util -d -R -a 0 0483:df11 -D Pfad-zur/ | ||