LMS-6 Radiosonde: Difference between revisions
add gps pinout notes |
Add notes on ST7 pins |
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| Line 115: | Line 115: | ||
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|3 | |3 | ||
| | |U3 - Pin29 / PC6 / SCK / ICCCLK | ||
TP33 | |||
U21 - Pin21 / PCLK | |||
| | | | ||
|- | |- | ||
|4 | |4 | ||
|U3 - Vpp/ICCSEL | |U3 - Pin38/Vpp/ICCSEL | ||
| | |Programmer probably has a 5->12v charge pump for this. | ||
Do not apply 12v willy-nilly, will blow chip. | |||
|- | |- | ||
|5 | |5 | ||
|U3 - RESET | |U3 - Pin39/RESET | ||
| | | | ||
|- | |- | ||
|6 | |6 | ||
|U3 - ICCDATA | |U3 - Pin27 / PC4 / MISO / ICCDATA | ||
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|- | |- | ||
| Line 135: | Line 140: | ||
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|12 | |12 | ||
| | |U21 - Pin 20 - DCLK | ||
|3.3v - | |3.3v - 4800Hz square wave, clocks the serial data | ||
This is probably not directly connected to U21/DCLK which is 5V. | |||
|- | |- | ||
|13 | |13 | ||
| Line 156: | Line 162: | ||
|26 | |26 | ||
|GPS Data (38400 BPS) | |GPS Data (38400 BPS) | ||
|Data bursts | |Data bursts | ||
|- | |- | ||
|31 | |31 | ||
| Line 167: | Line 173: | ||
|- | |- | ||
|38 | |38 | ||
|U3 - OCMP1_A / AIN10 / PF4 | |U3 - Pin18 / OCMP1_A / AIN10 / PF4 | ||
|Square wave data bursts, 0.2msec per bit | |Square wave data bursts, 0.2msec per bit | ||
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| Line 176: | Line 182: | ||
|40 | |40 | ||
|Battery voltage | |Battery voltage | ||
|Around 9VDC measured | |Around 9VDC measured, 3x3V batteries | ||
|} | |} | ||
| Line 347: | Line 353: | ||
|5 | |5 | ||
|Output | |Output | ||
|Data. Square wave. 5V space, 0v mark? Pulses around 250msec per bit. | |Data. Square wave. 5V space, 0v mark? Pulses around 250msec per bit. Perhaps this is a capacitance or resistance to frequency converter. | ||
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|6 | |6 | ||