Not applicable
Oct 17, 2015
04:40 AM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Oct 17, 2015
04:40 AM
Hi,
I am working on XMC4100, i am trying to Configue the PLL with Internal Clock i.e., Fofi with Automatic Caliberation, as per datasheet the internal clock if automatic caliberation is taken then 24Mhz will be the clock,
in NORMAL mode
Fpll = ((N / (p * k2 )) * Fosc); //Where Fosc is 24Mhz Generated by Internal Clock with Automatic Calibration
i am applying following values
for 80MHZ
N = 80, k2 = 8, P = 3 -------------------> Configured Successfully
for 72MHZ
N = 72, k2 = 8, P = 3 -------------------> Configured Successfully
for 64MHZ
N = 80, k2 = 10, P = 3 -------------------> Configured Successfully
for 48MHZ
N = 72, k2 = 12, P = 3 -------------------> Configured Successfully
for 24MHZ
N = 72, k2 = 24, P = 3 -------------------> Configured Successfully
for 16MHZ
N = 80, k2 = 40, P = 3 -------------------> Configured Successfully
for 12MHZ
N = 80, k2 = 40, P = 4 -------------------> Configured Successfully
for 8MHZ
N = 80, k2 = 80, P = 3 -------------------> Configured Successfully
for 4MHZ
N = 80, k2 = 80, P = 6 -------------------> NOT Configured Successfully
for 80MHZ
N = 80, k2 = 80, P = 12 -------------------> NOT Configured Successfully
in PRESCALAR mode
Fpll = Fosc / K1 // Where Fosc is 24Mhz Generated by Internal Clock with Automatic Calibration
for 24MHZ
K1 = 1 -------------------> Configured Successfully
for 12MHZ
K1 = 2 -------------------> Configured Successfully
for 8MHZ
K1 = 3 -------------------> Configured Successfully
for 4MHZ
K1 = 6 -------------------> Not Configured Successfully
for 3MHZ
K1 = 8 -------------------> Not Configured Successfully
for 2MHZ
K1 = 12 -------------------> Not Configured Successfully
for 1MHZ
K1 = 24 -------------------> Not Configured Successfully
After 8Mhz in both Prescalar and Normal mode The Clocks are not Configuring ???
I am working on XMC4100, i am trying to Configue the PLL with Internal Clock i.e., Fofi with Automatic Caliberation, as per datasheet the internal clock if automatic caliberation is taken then 24Mhz will be the clock,
in NORMAL mode
Fpll = ((N / (p * k2 )) * Fosc); //Where Fosc is 24Mhz Generated by Internal Clock with Automatic Calibration
i am applying following values
for 80MHZ
N = 80, k2 = 8, P = 3 -------------------> Configured Successfully
for 72MHZ
N = 72, k2 = 8, P = 3 -------------------> Configured Successfully
for 64MHZ
N = 80, k2 = 10, P = 3 -------------------> Configured Successfully
for 48MHZ
N = 72, k2 = 12, P = 3 -------------------> Configured Successfully
for 24MHZ
N = 72, k2 = 24, P = 3 -------------------> Configured Successfully
for 16MHZ
N = 80, k2 = 40, P = 3 -------------------> Configured Successfully
for 12MHZ
N = 80, k2 = 40, P = 4 -------------------> Configured Successfully
for 8MHZ
N = 80, k2 = 80, P = 3 -------------------> Configured Successfully
for 4MHZ
N = 80, k2 = 80, P = 6 -------------------> NOT Configured Successfully
for 80MHZ
N = 80, k2 = 80, P = 12 -------------------> NOT Configured Successfully
in PRESCALAR mode
Fpll = Fosc / K1 // Where Fosc is 24Mhz Generated by Internal Clock with Automatic Calibration
for 24MHZ
K1 = 1 -------------------> Configured Successfully
for 12MHZ
K1 = 2 -------------------> Configured Successfully
for 8MHZ
K1 = 3 -------------------> Configured Successfully
for 4MHZ
K1 = 6 -------------------> Not Configured Successfully
for 3MHZ
K1 = 8 -------------------> Not Configured Successfully
for 2MHZ
K1 = 12 -------------------> Not Configured Successfully
for 1MHZ
K1 = 24 -------------------> Not Configured Successfully
After 8Mhz in both Prescalar and Normal mode The Clocks are not Configuring ???
Labels
2 Replies
Oct 21, 2015
10:01 PM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Oct 21, 2015
10:01 PM
harshan wrote:
Hi,
I am working on XMC4100, i am trying to Configue the PLL with Internal Clock i.e., Fofi with Automatic Caliberation, as per datasheet the internal clock if automatic caliberation is taken then 24Mhz will be the clock,
in NORMAL mode
Fpll = ((N / (p * k2 )) * Fosc); //Where Fosc is 24Mhz Generated by Internal Clock with Automatic Calibration
i am applying following values
for 80MHZ
N = 80, k2 = 8, P = 3 -------------------> Configured Successfully
for 72MHZ
N = 72, k2 = 8, P = 3 -------------------> Configured Successfully
for 64MHZ
N = 80, k2 = 10, P = 3 -------------------> Configured Successfully
for 48MHZ
N = 72, k2 = 12, P = 3 -------------------> Configured Successfully
for 24MHZ
N = 72, k2 = 24, P = 3 -------------------> Configured Successfully
for 16MHZ
N = 80, k2 = 40, P = 3 -------------------> Configured Successfully
for 12MHZ
N = 80, k2 = 40, P = 4 -------------------> Configured Successfully
for 8MHZ
N = 80, k2 = 80, P = 3 -------------------> Configured Successfully
for 4MHZ
N = 80, k2 = 80, P = 6 -------------------> NOT Configured Successfully
for 80MHZ
N = 80, k2 = 80, P = 12 -------------------> NOT Configured Successfully
in PRESCALAR mode
Fpll = Fosc / K1 // Where Fosc is 24Mhz Generated by Internal Clock with Automatic Calibration
for 24MHZ
K1 = 1 -------------------> Configured Successfully
for 12MHZ
K1 = 2 -------------------> Configured Successfully
for 8MHZ
K1 = 3 -------------------> Configured Successfully
for 4MHZ
K1 = 6 -------------------> Not Configured Successfully
for 3MHZ
K1 = 8 -------------------> Not Configured Successfully
for 2MHZ
K1 = 12 -------------------> Not Configured Successfully
for 1MHZ
K1 = 24 -------------------> Not Configured Successfully
After 8Mhz in both Prescalar and Normal mode The Clocks are not Configuring ???
I do not understand your intention. Which operating frequency are you going to use?
Not applicable
Oct 22, 2015
09:28 PM
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Oct 22, 2015
09:28 PM
Thanks for Reply,
i want to use Back up Internal Clock i.e, as per the datasheet 36.5Mhz if un caliberated, i am making Setting Caliberation to Automatic and i am Getting 24Mhz now i am trying to generate different frequencies by taking 24Mhz as Source Clock. While i am Trying to Configure P,K2,N,K Values for 6Mhz,4Mhz,2Mhz,1Mhz, as mentioned above i was failed to Configure. i.e. i am not getting these Frequencies, hope my doubt is Clear.
Thanks and Regards,
i want to use Back up Internal Clock i.e, as per the datasheet 36.5Mhz if un caliberated, i am making Setting Caliberation to Automatic and i am Getting 24Mhz now i am trying to generate different frequencies by taking 24Mhz as Source Clock. While i am Trying to Configure P,K2,N,K Values for 6Mhz,4Mhz,2Mhz,1Mhz, as mentioned above i was failed to Configure. i.e. i am not getting these Frequencies, hope my doubt is Clear.
Thanks and Regards,