- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
HI, I'm trying to write (program) the workflash in the chip MB9DF566. The code is as follows:
IDE: IAR for ARM
#define WFCFG_UNLOCK_CODE 0xCF6DF1A5
#define WFCFG00_MA1_BASE (0x0E000000) // Base Addr of the workflash
#define WFCFG00_UNLOCK \
{ \
WFCFG00_CPR = WFCFG_UNLOCK_CODE; \
}
void Init_WorkFlash00(void)
{
// Program enable
//WFCFG00_UNLOCK;
//WFCFG00_CR_WE = 1;
// Flash wait control
WFCFG00_UNLOCK;
WFCFG00_CR_FAWC = 2;
// Enable ECC
WFCFG00_UNLOCK;
WFCFG00_ECR_ECCOFF = 0;
// Disable DMA
WFCFG00_WCR_DMAEN = 0;
// Disable the generation of hang interrupt requests
WFCFG00_ICR_HANGIE = 0;
// Disable generation of ready interrupt requests
WFCFG00_ICR_RDYIE = 0;
// Clear interrupts
WFCFG00_ICR_HANGIC = 1;
WFCFG00_ICR_RDYIC = 1;
// Software reset
WFCFG00_UNLOCK;
WFCFG00_CR_SWFRST = 1;
}
void WorkFlash00Write(uint32_t Addr_Offset, uint32_t Data)
{
uint32_t *pDes = ((uint32_t *)WFCFG00_MA1_BASE) + Addr_Offset;
// Program enable
WFCFG00_UNLOCK;
WFCFG00_CR_WE = 1;
while(0 != WFCFG00_WSR_ST);
*pDes = Data;
while(1 != WFCFG00_SR_RDY);
// Program disable
WFCFG00_UNLOCK;
WFCFG00_CR_WE = 0;
}
When the code steps over the line:
*pDes = Data;
the regester WFCFG00_BERR_ACCIGN = 1, which means a command overrun, and the write operation fails.
Then when steps over the next line, the IAR show me a dialog "Warning: Stopped at unknown breakpoint".
Please help me to find the right way to write the workflash. Maybe directly access the workflash by point is not right, but I couldn't find a register which could access the workfalsh area.
Solved! Go to Solution.
- Labels:
-
Other Legacy MCU
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
For your concerned issue, please kindly contact your local Cypress Sales or Cypress distributors to get technical support.
Best regards,
Amy Wang
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
The problem still bothers me.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
For your concerned issue, please kindly contact your local Cypress Sales or Cypress distributors to get technical support.
Best regards,
Amy Wang