When writing a command to the Flash memory, the command or Data byte must be placed on D[7:0] of the FMI memory bus. This requires the bank or sector address to be at a word boundary (word address), except when programming a halfword. (Refer to Flash prog user manual ). The following code can be useful for you to read RSIG registers(pls see fmi_rsig table). u16 fmi_rsig[6] = {0,0,0,0,0,0}; u16 fmi_rsig16 = 0; u8 i; int main() { #ifdef DEBUG debug(); #endif //Write a read RSIG command to any word address in Bank1 *(vu16 *)(FMI_BANK_1) = 0x90; //Read any RSIG register from any addres in Bank1 for(i = 0; i < 6; i++) fmi_rsig[i] = (*(vu32*)(FMI_BANK_1 + (i<//Write a read array command to return to Read Array mode *(vu16 *)FMI_BANK_1 = 0xFF; } Regards Eris.
Has anyone been able to read the Electronics Signature of the STR91x? I'm using the Keil MCBSTR9 ver2 Eval Board.
The expected values are in the STR9 Flash Programming Manual Rev1 Section 1.11.2 (p.13). Looking at the Memory Window in Realview doesn't show the expected values except for Manufacturer code. I get the following: Manafacturer Code 0x0020 Device Code 0x0000 Die Revision Code 0x0000 Protection Level 2 Register 0x2000 Protection Level 1 Register 0x0041 Flash Configuration Register 0x5700 Can someone please help? Thanks! Here is my code: #define FMI_BANK_1 ((*(vu32*)0x54000010) << 2) void Fmi_Rsig_Cmd_Handler() { u16 fmi_rsig16 = 0; u8 fmi_rsig[12] = {0,0,0,0,0,0,0,0,0,0,0,0}; int get_fmi_rsig_cnt= 0; int fmi_rsig_cnt = 0; //Write a read RSIG command to any word address in Bank1 *(vu16 *)(FMI_BANK_1) = 0x90; //Read any RSIG register from any addres in Bank1 //using the low byte of the address to select the register. for (get_fmi_rsig_cnt = 0; get_fmi_rsig_cnt < 6; get_fmi_rsig_cnt++) { fmi_rsig16 = (*(vu32*)(FMI_BANK_1 + get_fmi_rsig_cnt)); fmi_rsig[fmi_rsig_cnt++] = fmi_rsig16 & 0x00FF; fmi_rsig[fmi_rsig_cnt++] = (fmi_rsig16 & 0xFF00) >> 8; } //Write a read array command to return to Read Array mode *(vu16 *)FMI_BANK_1 = 0xFF; //Return value to host PC Load_TX_Buf(fmi_rsig); }
