• Activating chip selects...???
    I'm trying to access external devices on a XC161. A0-A19 are active. So are CS0-CS4. ADDRSEL4 is set to 0x0400 (start at 40000h, size 4k) Writing to 0x40000 works but CS0 is activated not CS4 ???...
  • Activating chip selects...???
    I'm trying to access external devices on a XC161. A0-A19 are active. So are CS0-CS4. ADDRSEL4 is set to 0x0400 (start at 40000h, size 4k) Writing to 0x40000 works but CS0 is activated not CS4 ???...
  • GIC-v3: control of group 0 interrupts activation and selection
    Hi, I have two main questions, about the handling of group 0 interrupts: from my understanding of the GIC-v3 documentation, any secure OS (EL1, SCR.NS == 0) has access to ICC_IGRPEN0_EL1: Am I correct...
  • GIC-v3: control of group 0 interrupts activation and selection
    Hi, I have two main questions, about the handling of group 0 interrupts: from my understanding of the GIC-v3 documentation, any secure OS (EL1, SCR.NS == 0) has access to ICC_IGRPEN0_EL1: Am I correct...
  • When I select "use on chip ROM" under target options
    I receive a linker error 201 when I select the "use on chip ROM' under options\target. Otherwise the code compiles/links correctly. This device AT89S8253 has both on board flash for code and 2k of on...