LMS-6 Radiosonde: Difference between revisions
document the bit-synth interrupt |
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| Line 185: | Line 185: | ||
|U21 - Pin 20 - DCLK | |U21 - Pin 20 - DCLK | ||
|3.3v - 4800Hz square wave, clocks the serial data | |3.3v - 4800Hz square wave, clocks the serial data | ||
This is probably not directly connected to | This is probably not directly connected to ST7 PortF.4 which is 5V. | ||
|- | |- | ||
|13 | |13 | ||
| Line 347: | Line 347: | ||
|19 | |19 | ||
|DI | |DI | ||
|Pin18 / OCMP1_A / AIN10 / | |Pin18 / OCMP1_A / AIN10 / PF4 | ||
|U17 appears to be a level translator between CC1050.19 and ST7.18 | |U17 appears to be a level translator between CC1050.19 and ST7.18 | ||
|- | |- | ||
| Line 647: | Line 647: | ||
ST7 ADC AIN8 appears to be the only one used. | ST7 ADC AIN8 appears to be the only one used. | ||
=== Interrupts === | |||
* ei0_int | |||
** Triggered by PortA.3 | |||
** uses location 0xB2 as a shift register to output LSB first to CC1050's Data Input on PortF.4 | |||
==Modifications== | ==Modifications== | ||