Hello Team,
I am using AWR1843BOOST EVM, and i have an issue with clock configuration, below is my configuration.
CAN is working, SPI intialization failing when it is free run.
But properly initialized when i put break point.
As per understanding, seems a problem with SPI clock/baud rate.
As per SFLASH MX25V1635F datasheet, device can support 80Mhz.
I would like to run CPU at 200Mhz.
Could you please check, and let me know where i did mistake.
I am stuck at same issue from 3days.
BRSHW -> you can ignore.
void BrsHwPllInitPowerOn(void)
{
/*
* MSS_VCLK and DSPCLK is managed by the Boot ROM and the user is not expected to changes these configurations
* MSS_VCLK = 200 Mhz maximum
*/
/* Enable Access RCM */
BRSHW_SYS_USER_RCM = 0xADADADAD;
/* Enable User access */
BRSHW_SYS_USER_PERIPH =0xFFFFFFFF;
/* Gate the clock to the peripheral MCAN DCAN QSPI to work with the Clock */
BRSHW_SYS_CLKGATE = 0x00000038;
/*
* Need to configure MCAN- DCAN Clock divider
* DCAN : [23:16] BRSHW_CLKDIVCTL0
* MCAN : [31:24] BRSHW_CLKDIVCTL0
* CPU : [15:8} CPU
* 0x00000000 div 1
* 0x00000001 div 2
* 0x00000002 div 3
* 0x00000001 div 2
* 0x00000001 div 2
* 0xFFFFFFFF div 256
*/
BRSHW_CLKDIVCTL0 = 0x09090200;
/*
* Need to configure QSPI Clock divider
*/
BRSHW_CLKDIVCTL2 = 0x00000009;
/*
* Need to Route MCAN- DCAN Clock --> Choose below
* DCAN : [3:0] B
* MCAN : [11:8]
* 000 VCLK
* 001 101 111 RCCLK
* 100 CPUCLK
* 110 REFCLK --> don't use it unstable !
*/
/* Select Ref Clock source from PLL for MCAN and DCAN and QSPI --> 600 Mhz */
BRSHW_CLKSRCSEL0 = 0x00020202;
/* Same as definition above CPU but for CPU ---> 600Mhz */
BRSHW_SYS_CLKSRCSEL1 = 0x00000002;
/* Ungate the Clock */
BRSHW_SYS_CLKGATE = 0x00000000;
}
Kind regards,
Hari
