topic Re: index addressing in 8-bit Microcontrollers https://community.nxp.com/t5/8-bit-Microcontrollers/index-addressing/m-p/877445#M22780 <HTML><HEAD></HEAD><BODY><P>Looks like you put constants to .. RAM:</P><P></P><P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; org $00d0 <BR />&nbsp; <BR />pulse_cnt&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dc.w&nbsp; $3e7f,$1f3f,$14d5,$0f9f,$0c80,$0a6a,$08ed,$07cf,$06f1,$0640<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dc.w&nbsp; $042a,$0320,$0280,$0215,$01c9,$0190,$0163<BR />pulse_cnt_max&nbsp;&nbsp; dc.w&nbsp; $0140</P><P></P><P>Who do you think will initialize them when powered up standalone? Random values in RAM could easily produce 113Hz</P><P></P><P>Edward</P></BODY></HTML> Thu, 31 Jan 2019 19:25:25 GMT kef2 2019-01-31T19:25:25Z index addressing https://community.nxp.com/t5/8-bit-Microcontrollers/index-addressing/m-p/877444#M22779 <HTML><HEAD></HEAD><BODY><P>hi i wrote a little program to generate a square wave at around 5khz. using codewarior 5.9 and indexed addressing, everything is working ok. But when i program my 68hc908qt4 the frequency is around 113hz. The only way i can have 5khz is to use extended addressing. Why ???</P></BODY></HTML> Thu, 31 Jan 2019 16:23:22 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/index-addressing/m-p/877444#M22779 lucostiguy 2019-01-31T16:23:22Z Re: index addressing https://community.nxp.com/t5/8-bit-Microcontrollers/index-addressing/m-p/877445#M22780 <HTML><HEAD></HEAD><BODY><P>Looks like you put constants to .. RAM:</P><P></P><P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; org $00d0 <BR />&nbsp; <BR />pulse_cnt&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dc.w&nbsp; $3e7f,$1f3f,$14d5,$0f9f,$0c80,$0a6a,$08ed,$07cf,$06f1,$0640<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dc.w&nbsp; $042a,$0320,$0280,$0215,$01c9,$0190,$0163<BR />pulse_cnt_max&nbsp;&nbsp; dc.w&nbsp; $0140</P><P></P><P>Who do you think will initialize them when powered up standalone? Random values in RAM could easily produce 113Hz</P><P></P><P>Edward</P></BODY></HTML> Thu, 31 Jan 2019 19:25:25 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/index-addressing/m-p/877445#M22780 kef2 2019-01-31T19:25:25Z