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 | | RE: pbLua PCF8574 SOLVED ?
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| (...) This is the excepted behavior. When you want to read from I2C device, the NXT firmware first sends a write message to load the internal index "pointer" for the I2C device and then sends a read message that will read the requested number of (...) (18 years ago, 21-May-07, to lugnet.robotics.nxt, lugnet.robotics.nxt.nxthacking)
| | | | | Re: pbLua PCF8574 SOLVED ?
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| (...) Hi, or was it a quirk at my brain to address the i2c-read-address and hope to receive usefull data ? Currently it works for me when using allways the i2c-write address... Are the any demos or samples for NXC, using the PCF8574 ? 1. setting (...) (18 years ago, 21-May-07, to lugnet.robotics.nxt, lugnet.robotics.nxt.nxthacking)
| | | | | Re: NXC - embedded functions failed
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| (...) This is definitely a problem in NXC. The problem is that the value of arg "a" (33) to the function Max is being replaced during the second call to Max since it passes 5 into arg "a". It looks like I need to figure out a decent way to implement (...) (18 years ago, 21-May-07, to lugnet.robotics.nxt)
| | | | | Re: pbLua PCF8574 SOLVED
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| (...) Hi, we solved the problem... Lego-Firmware has own brain and handle read/write with own mechanisms ;-( The last read/write bit is handled automatically by lowlevel routines. Reading the same address like writing solves the problem. (...) (18 years ago, 21-May-07, to lugnet.robotics.nxt, lugnet.robotics.nxt.nxthacking)
| | | | | NXC - embedded functions failed
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| #include "NXCDefs.h" int Max(int a,int b){ if (a>b) return a; else return b; } task main(){ int Prob=0; Prob = Max(33, Max(5,15)); NumOut(5,LCD_LINE2,false,Prob); //returns 15 WRONG ---...--- Prob = Max(5,15); Prob = Max(33,Prob); (...) (18 years ago, 20-May-07, to lugnet.robotics.nxt)
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