Hard reset user device on connection and disconnection of FPGA viewer

master
Timothy Pearson 11 years ago
parent ed6e66626b
commit 2dc576d25f

@ -342,10 +342,12 @@ static void io_setup(void)
// printf("0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\n\r", *(gpio_char + 0), *(gpio_char + 0), *(gpio_char + 0), *(gpio_char + 0), *(gpio_char + 0), *(gpio_char + 0), *(gpio_char + 0), *(gpio_char + 0));
//
while (1) {
// printf("0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\r", *(gpio_char + 0), *(gpio_char + 1), *(gpio_char + 2), *(gpio_char + 3), *(gpio_char + 4), *(gpio_char + 5), *(gpio_char + 6), *(gpio_char + 7));
// printf("0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\r", *(gpio_char + 0), *(gpio_char + 1), *(gpio_char + 2), *(gpio_char + 3), *(gpio_char + 0x1000), *(gpio_char + 0x1001), *(gpio_char + 0x1002), *(gpio_char + 0x1003));
printf("0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\r", *(gpio_char + 0), *(gpio_char + 1), *(gpio_char + 2), *(gpio_char + 3), *(gpio_char + 0x4000), *(gpio_char + 0x4001), *(gpio_char + 0x4002), *(gpio_char + 0x4003));
// printf("0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\r", *(gpio_char + 0), *(gpio_char + 1), *(gpio_char + 2), *(gpio_char + 3), *(gpio_char + 0x4000), *(gpio_char + 0x4001), *(gpio_char + 0x4002), *(gpio_char + 0x4003));
printf("0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\r", *(gpio_char + 0), *(gpio_char + 1), *(gpio_char + 2), *(gpio_char + 3), *(gpio_char + 0x0a), *(gpio_char + 0x0b), *(gpio_char + 0x0c), *(gpio_char + 0x0d));
// printf("0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\t0x%02x\r", *(gpio_char + 0x4000), *(gpio_char + 0x4001), *(gpio_char + 0x4002), *(gpio_char + 0x4003), *(gpio_char + 0x4000), *(gpio_char + 0x4001), *(gpio_char + 0x4002), *(gpio_char + 0x4003));
usleep(10);
}

@ -111,6 +111,13 @@ void FPGASocket::connectionClosedHandler() {
printf("[DEBUG] Connection from %s closed\n\r", m_remoteHost.ascii()); fflush(stdout);
}
if (m_interfaceType == "gpmc") {
// Reset user device
write_gpmc(0x0c, read_gpmc(0x0c) | 0x03);
usleep(100);
write_gpmc(0x0c, read_gpmc(0x0c) & ~0x03);
}
if (m_criticalSection > 0) {
throw exit_exception(-1);
}
@ -254,6 +261,11 @@ int FPGASocket::setupGPMC() {
}
printf("[DEBUG] Detected a compatible uLab hardware debug interface (model number 0x%02x, firmware version 0x%02x)\n", model, version);
// Reset user device
write_gpmc(0x0c, read_gpmc(0x0c) | 0x03);
usleep(100);
write_gpmc(0x0c, read_gpmc(0x0c) & ~0x03);
// Clear out DSP and LCD RAM
unsigned char dsp_ram_bits = read_gpmc(0x0b);
unsigned int dsp_ram_offset = (1 << dsp_ram_bits);

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