Legacy microcontrollers Forum Discussions

Hello,

I have 2 programs flashed on microcontroller XC164.
The first program is placed in sector starting C0'0000 and the second one in sector starting C1'0000.

How can I switch to Alternate Boot for XC164 microcontroller programatically?
I tried to enable ALE pin P20.4 but after software reset the application is started from default start location C0'0000.

My second question is if it is possible to switch to Alternate Boot or Standard Boot "permanently".
I mean that if i switch to Alternate Boot then after every reset the program placed on C1'0000 will be started unless Standard Boot is selected (e.g. by program on C1'0000)

Thank you very much for your answer.

Best regards,
Thomas Show Less

Hello.
I try connect PC with
I'm trying to connect a computer to Easy Kit XC2765x through on-board FTDI2232. Nothing happens.
Maybe I'm wrong to choose the serial port (the kit documentation " ASC0 as serial connection via USB"- what does this mean?) What pins and USIC/channel I must choise ?
Where can I download the sample program "Hello world" with the source for EasyKit?
Thanks. Show Less

Hi,

I was trying to configure overlay RAM (OVRAM) in tc1782 for it to overlay some data
from PFlash which can be used for calibration purpose.

It is specified in manual that OVRAM registers have write only in supervisor mode.
Hence how can we modify the registers in runtime say if a calibration request is received
for a array in PFlash.

Any help regarding OVRAM config is appreciated. Show Less

Hello..

Now.. I'm beginner for XC2364B microprocessor.

I don't know how to use a SPI communication for MASTER.
Please give me the sample source such as initialize, transmit, receive, register setting for C code

This is pin number..
P2.2 SPI CS
P2.3 SPI_MOSI
P2.4 SPI_MISO
P2.5 SPI_SCK

Firstly, I used DAVE but I can't understand source.
Please send me simply source.
Thank you so much. Show Less

Hi,
I found a document that is named as C166SV1-OCDS.pdf
But for C166SV2, is there a document to describe details about cerberus/ocds registers?

thanks. Show Less

Hi All

I use to XC2387.

so, ADC Port is P5, P15.

I want read to ADC Port P5 (P5.0~P5.15) & P15(P15.0~P15.7).

Now Port 15 is ADC Read Clear!

but Port5 ADC read is Not Clear.

ex)

ADC0_CRPR1 = 0x00EB;
while(ADC0_GLOBSTR & 0x0001);

gstADC0.unCH[0][0] = (ADC0_RESRA0 >> 2) & 0x03FF; //CH1
gstADC0.unCH[1][0] = (ADC0_RESRA1 >> 2) & 0x03FF; //CH2
//gstADC0.unCH[2][0] = (ADC0_RESRA2 >> 2) & 0x03FF; //CH3 : JTAG
gstADC0.unCH[3][0] = (ADC0_RESRA3 >> 2) & 0x03FF; //CH4

//gstADC0.unCH[4][0] = (ADC0_RESRA4 >> 2) & 0x03FF; //CH5 : JTAG
gstADC0.unCH[5][0] = (ADC0_RESRA5 >> 2) & 0x03FF; //CH6
gstADC0.unCH[6][0] = (ADC0_RESRA6 >> 2) & 0x03FF; //CH7
gstADC0.unCH[7][0] = (ADC0_RESRA7 >> 2) & 0x03FF; //CH8

ADC0_CRPR1 = 0xFB00;
while(ADC0_GLOBSTR & 0x0001);

gstADC0.unCH[8][0] = (ADC0_RESRA0 >> 2) & 0x03FF; //CH1
gstADC0.unCH[9][0] = (ADC0_RESRA1 >> 2) & 0x03FF; //CH2
//gstADC0.unCH[10][0] = (ADC0_RESRA2 >> 2) & 0x03FF; //CH3 : JTAG
gstADC0.unCH[11][0] = (ADC0_RESRA3 >> 2) & 0x03FF; //CH4

gstADC0.unCH[12][0] = (ADC0_RESRA4 >> 2) & 0x03FF; //CH5
gstADC0.unCH[13][0] = (ADC0_RESRA5 >> 2) & 0x03FF; //CH6
gstADC0.unCH[14][0] = (ADC0_RESRA6 >> 2) & 0x03FF; //CH7
gstADC0.unCH[15][0] = (ADC0_RESRA7 >> 2) & 0x03FF; //CH8

How to solve? Show Less

Hello all,
could any one give me sample code of USIC in SSC mode for XC2200N Series or How to we find the code for That.I am using TASKING compiler.

thanks & Regards
saurabh prakash Show Less

I would like to know the difference between XC886CM-6FFA and XC886CM-8FFA.

I have an application which CAN interface is running on 6FFA and not on 8FFA.

On 6FFA : a CAN message is sent periodically
On 8FFA : on the ouput CAN, there is a periodical signal which is not a CAN signal

Why with the same application, there is no the same behaviour ?

Thanks for your help. Show Less