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Hi!
Having a strange problem. When using port2 ISR I get the following error:
MSP430: File Loader: Data verification failed at address 0x0000FFEA Please verify target memory and memory map.
MSP430: GEL: File: C:\Users\a0797143\workspace_v5_4\BlinkLED\Debug\BlinkLED.out: a data verification error occurred, file load failed.
MSP430F1232
For illustration I stripped down all the code to the essentials below. If I remove the port2 ISR everything works just fine. What am I missing here?
I am using CCS V5.4, freshly installed today.
#include <msp430x12x2.h>
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
P1DIR |= 0x40; // P1.0 output
CCTL0 = CCIE; // CCR0 interrupt enabled
CCR0 = 20000;
TACTL = TASSEL_2 + MC_1; // SMCLK, upmode
_BIS_SR(LPM0_bits + GIE); // Enter LPM0 w/ interrupt
}
#pragma vector=PORT1_VECTOR
__interrupt void PORT1 (void)
{
P1OUT ^= 0x40; // Toggle P1.0
}
#pragma vector=PORT2_VECTOR
__interrupt void PORT2 (void)
{
P1OUT ^= 0x40; // Toggle P1.0
}
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR (void)
{
P1OUT ^= 0x40; // Toggle P1.0
}
// Timer A0 interrupt service routine
#pragma vector=TIMERA0_VECTOR
__interrupt void Timer_A (void)
{
P1OUT ^= 0x40; // Toggle P1.0
}
I used API monitor to trace the calls made by CCS to MSP430_Memory in MSP430.dll, when CCS reported the error:
The TI-TXT flash image file says the byte values AC 80 should be programmed at the ADC10 interrupt vector address of 0xFFEA. The following shows CCS correctly calling MSP430_Memory to write 2 bytes with values AC 80 (initial 2 bytes shown in the Hex buffer pre-call) to address 0xFFEA (65514):MSP430: File Loader: Data verification failed at address 0x0000FFEA Please verify target memory and memory map.MSP430: GEL: File: C:\Documents and Settings\Mr_Halfword\workspace_v5_4\ISR_causes_download_error\Debug\ISR_causes_download_error.out: a data verification error occurred, file load failed.
The following shows CCS calling MSP430_Memory to verify the previous flash write to the 2 bytes at address 0xFFEA, but getting the readback of the bytes values FF FF (initial 2 bytes shown in the Hex buffer post-call):
Reading the interrupt vectors from the flash using FET-Pro430 after the CCS verification failure confirms that the flash word at address 0xFFEA has the erased value of FF FF, as well as the byte value of 00 at address 0xFFFE which CCS didn't attempt to program:
The conclusion is that CCS is attempting to program the correct interrupt vectors into flash via the MSP430.dll, but for some reason the MSP430.dll and/or MSP-FET430UIF firmware fails to program the flash correctly.0xFFE0: FF FF FF FF B4 80 BC 80 FF FF FF FF FF FF FF FF | ................
0xFFF0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00 FF | ................
Therefore, the problem looks to be in the MSP430.dll software and/or FET firmware.
Given that the FET-Pro430 is able to correctly program interrupt vectors using the same MSP430.dll software and FET firmware which fails when CCS attempts the download, comparing the difference in how CCS and FET-Pro430 call the MSP430.dll API may provide a clue.
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