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[sw] update bootloader

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stnolting 2023-01-21 15:27:11 +01:00
parent 48f7f36378
commit c4c7db102a
1 changed files with 5 additions and 3 deletions
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8
sw/bootloader/bootloader.c
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@ -305,10 +305,12 @@ int main(void) {
// Configure machine system timer interrupt
if (neorv32_mtime_available()) {
NEORV32_MTIME.TIME_LO = 0;
NEORV32_MTIME.TIME_HI = 0;
NEORV32_MTIME.TIMECMP_LO = NEORV32_SYSINFO.CLK/4;
NEORV32_MTIME.TIMECMP_HI = 0;
neorv32_cpu_csr_write(CSR_MIE, 1 << CSR_MIE_MTIE); // activate MTIME IRQ source
neorv32_cpu_eint(); // enable global interrupts
neorv32_cpu_csr_set(CSR_MSTATUS, 1 << CSR_MSTATUS_MIE); // enable machine-mode interrupts
}
@ -458,7 +460,7 @@ void print_help(void) {
void start_app(int boot_xip) {
// deactivate global IRQs
neorv32_cpu_dint();
neorv32_cpu_csr_clr(CSR_MSTATUS, 1 << CSR_MSTATUS_MIE);
register uint32_t app_base = NEORV32_SYSINFO.ISPACE_BASE; // default = start at beginning of IMEM
#if (XIP_EN != 0)
@ -698,7 +700,7 @@ void system_error(uint8_t err_code) {
PRINT_TEXT("\a\nERR_"); // output error code with annoying bell sound
PRINT_TEXT(error_message[err_code]);
neorv32_cpu_dint(); // deactivate IRQs
neorv32_cpu_csr_clr(CSR_MSTATUS, 1 << CSR_MSTATUS_MIE); // deactivate IRQs
// permanently light up status LED
#if (STATUS_LED_EN != 0)