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fix lf sim fpga download overwrites sim buffer (#391)

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* adjust LFSim to download lf fpga prior to setting emulation buffer to prevent buffer overwrite condition if you are coming from HF fpga.
* fix lf sim big buff overwrite with fpga download. Move fix to the buffer download cmd.
This commit is contained in:
marshmellow42 2017-09-11 13:18:32 -04:00 • committed by pwpiwi
commit 8c8317a5e9
4 changed files with 16 additions and 8 deletions
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11
armsrc/appmain.c
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@ -1294,6 +1294,15 @@ void UsbPacketReceived(uint8_t *packet, int len)
break;
case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
// iceman; since changing fpga_bitstreams clears bigbuff, Its better to call it before.
// to be able to use this one for uploading data to device
// arg1 = 0 upload for LF usage
// 1 upload for HF usage
if (c->arg[1] == 0)
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
else
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
uint8_t *b = BigBuf_get_addr();
memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
cmd_send(CMD_ACK,0,0,0,0,0);
@ -1304,7 +1313,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
break;
case CMD_SET_LF_DIVISOR:
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->arg[0]);
break;